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Disposable serrated biopsy forceps with a spike used for obtaining samples of suspicious lesions or polyps during colonoscopy and EGD (esophagogastroduodenoscopy).
This photo is in 3D crossview. You cross your eyes while keeping the screen centered and it should become one image at the center in 3D. More Instructions for viewing 3D images: www.3dphoto.net/text/viewing/technique.html
Stereo Viewer for all my photos: jongames.com/stereophoto/
I love these flowers as they have very unique shapes and patterns along with using mimicry to trick insects such as wasps to pollinate them. Apparently they are extensively cultivated but due to poaching are rare in the wild. Native to SE Asia. Seen in a botanical garden.
This photo is in 3D crossview. You cross your eyes while keeping the screen centered and it should become one image at the center in 3D. More Instructions for viewing 3D images: www.3dphoto.net/text/viewing/technique.html
Stereo Viewer for all my photos: jongames.com/stereophoto/
Midas Rex MR8 high-speed drill system used on skull for creating a VP (ventriculoperitoneal) Shunt, a procedure to prevent hydrocephalus by shunting excess CSF (cerebrospinal fluid) from the brain's ventricles to the abdomen.
This photo is in 3D crossview. You cross your eyes while keeping the screen centered and it should become one image at the center in 3D. More Instructions for viewing 3D images: www.3dphoto.net/text/viewing/technique.html
Stereo Viewer for all my photos: jongames.com/stereophoto/
The Place Painting by Barrie J Davies 2024, Mixed media on Canvas, 35 cm x 28 cm, Unframed and ready to hang.
www.barriejdavies.info/collections/paintings/products/the...
Buy Now Painting by Barrie J Davies 2024, Mixed media on Canvas, 30 cm x 40 cm, Unframed and ready to hang.
www.barriejdavies.info/collections/paintings/products/buy...
Midas Rex MR8 high-speed drill system used on skull for creating a VP (ventriculoperitoneal) Shunt, a procedure to prevent hydrocephalus by shunting excess CSF (cerebrospinal fluid) from the brain's ventricles to the abdomen.
This photo is in 3D parallel view. More Instructions for viewing 3D images: www.3dphoto.net/text/viewing/technique.html
Stereo Viewer for all my photos: jongames.com/stereophoto/
For the Day 4 Challenge at Oscraps, we were asked to use one word -- HOLIDAY -- somewhere in our layout. (The plural version is also okay.)
I decided to do an irreverent take on the holidays -- because not everyone looks forward to them. They may have lost a loved one, and this is their first or second holiday season without them. Or, the holiday season may have been a difficult time for them growing up, with arguments, poverty, or abuse (or all of the above). Not all families are happy ones. For example, my family liked to play "fake happy family," pretending we all got along and trying to create those photogenic happy family moments that were never going to happen. Fortunately, now, I have cultivated my family of choice and the holiday season is wonderful, relaxing, and restorative!
My intent here is not to offend anyone -- this is just an art journaling-like expression of my former feelings towards the holiday season.
For this layout, I used a Scrooge-like irreverent tag from Crafty Button Design's Sassy Pants Holiday Tags as the main focal image. (The voice of my Christmases past!) You can find it at: www.oscraps.com/shop/Sassy-Pants-Holiday-Tags-Vol1.html.
Everything else is from Rachel Jefferies' Sweet December Stories Complete Mixed Media Collection. I picked a pretty mixed media polka dot background paper and layered several pocket art cards between the tag and the background. I added a bow to the top of the tag, several stars, a bird house, flowers and leaves, a ribbon, and some stamping. I selected the "happy happy" word strip precisely because it is a contrasting color, it goes with the stars painted on the tag, and because it represents that "fake happy family" feeling for me. The title is a sticker from Sweet December Stories that I added using the multiply mode, to make only the distressed text viewable.
This photo is in 3D parallel view. More Instructions for viewing 3D images: www.3dphoto.net/text/viewing/technique.html
Stereo Viewer for all my photos: jongames.com/stereophoto/
Shiny Happy People Painting by Barrie J Davies 2024, Mixed media on Canvas, 30 cm x 40 cm, Unframed and ready to hang.
www.barriejdavies.info/collections/paintings/products/shi...
This 3D stereographic photo is of the CardioMEMS device, an implantable pressure sensor that wirelessly measures pulmonary artery pressures without requiring any batteries. It is used for heart failure patients to monitor their hemodynamics and estimate their volume status. This aids in prophylactically adjusting diuretics and heart failure medications before a patient becomes symptomatic and has to present to a hospital for a heart failure exacerbation. Reducing hospitalizations and HF exacerbations would aim to reduce mortality and improve quality of life.
The device is pretty amazing as it is very small and works indefinitely without batteries. The main component is a 15mm x 3.4mm x 2mm rectangle with two nitinol wire loops on each side that extend the length of the device to 4.5cm. Nitinol is a metal alloy of nickel & titanium that exhibits shape memory and superelasticity. Nitinol is commonly used for stents and other medical devices as it is biocompatible and folds up nicely in a tiny catheter before being deployed in the body where it expands to its full size and shape. This anchors the device in the distal pulmonary artery.
Its theory of operation is exceedingly simple in terms of design. It consists of a three dimensional coil of wire and two metal plates on two wafers of fused silica encased in silicone. The coil is produced through electrodeposition of gold onto a silica wafer in a vacuum chamber. Fusion bonding is used to join the silica wafers. The coil of wire forms an inductor and the two metal plates act as a capacitor in physics & electronics terms. This arrangement connected in a parallel loop forms a resonant LC circuit (L=inductance, C=capacitance). Depending on the capacitance and inductance of the components, the circuit will oscillate at a perferred resonant frequency. The capacitor in the CardioMEMS is exposed and very thin allowing the silica crystal and metal plates to deform with changes in pressure from the blood within the pulmonary artery. Changing the distance between metal plates of a capacitor changes its capacitance value thereby changing the devices resonant frequency. An external machine can ping and excite the coil with various electromagnetic radio frequencies until it is able to find its resonant frequency. By working backwards, the measured frequency can be converted into an estimated capacitance which can be correlated to an estimated pressure measurement.
The device is placed during the right heart catheterization (RHC) procedure when the physician threads catheters from a patient's veins through the right atria, past the tricuspid valve, through the right ventricle, and finally past the pulmonary valve into the pulmonary artery. Fluoroscopy or video x-rays along with radiopaque contrast are used to visualize the blood vessels and guide the catheters to their destination. During the RHC, the cardiologist will use a Swan-Ganz catheter to measure the actual pressure and calibrate the device's measured pressures to actual pressures.
doi.org/10.1177/1753944719826826
This photo is in 3D parallel view. More Instructions for viewing 3D images: www.3dphoto.net/text/viewing/technique.html
Stereo Viewer for all my photos: jongames.com/stereophoto/
This 3D stereographic photo is of the CardioMEMS device, an implantable pressure sensor that wirelessly measures pulmonary artery pressures without requiring any batteries. It is used for heart failure patients to monitor their hemodynamics and estimate their volume status. This aids in prophylactically adjusting diuretics and heart failure medications before a patient becomes symptomatic and has to present to a hospital for a heart failure exacerbation. Reducing hospitalizations and HF exacerbations would aim to reduce mortality and improve quality of life.
The device is pretty amazing as it is very small and works indefinitely without batteries. The main component is a 15mm x 3.4mm x 2mm rectangle with two nitinol wire loops on each side that extend the length of the device to 4.5cm. Nitinol is a metal alloy of nickel & titanium that exhibits shape memory and superelasticity. Nitinol is commonly used for stents and other medical devices as it is biocompatible and folds up nicely in a tiny catheter before being deployed in the body where it expands to its full size and shape. This anchors the device in the distal pulmonary artery.
Its theory of operation is exceedingly simple in terms of design. It consists of a three dimensional coil of wire and two metal plates on two wafers of fused silica encased in silicone. The coil is produced through electrodeposition of gold onto a silica wafer in a vacuum chamber. Fusion bonding is used to join the silica wafers. The coil of wire forms an inductor and the two metal plates act as a capacitor in physics & electronics terms. This arrangement connected in a parallel loop forms a resonant LC circuit (L=inductance, C=capacitance). Depending on the capacitance and inductance of the components, the circuit will oscillate at a perferred resonant frequency. The capacitor in the CardioMEMS is exposed and very thin allowing the silica crystal and metal plates to deform with changes in pressure from the blood within the pulmonary artery. Changing the distance between metal plates of a capacitor changes its capacitance value thereby changing the devices resonant frequency. An external machine can ping and excite the coil with various electromagnetic radio frequencies until it is able to find its resonant frequency. By working backwards, the measured frequency can be converted into an estimated capacitance which can be correlated to an estimated pressure measurement.
The device is placed during the right heart catheterization (RHC) procedure when the physician threads catheters from a patient's veins through the right atria, past the tricuspid valve, through the right ventricle, and finally past the pulmonary valve into the pulmonary artery. Fluoroscopy or video x-rays along with radiopaque contrast are used to visualize the blood vessels and guide the catheters to their destination. During the RHC, the cardiologist will use a Swan-Ganz catheter to measure the actual pressure and calibrate the device's measured pressures to actual pressures.
doi.org/10.1177/1753944719826826
This photo is in 3D parallel view. More Instructions for viewing 3D images: www.3dphoto.net/text/viewing/technique.html
Stereo Viewer for all my photos: jongames.com/stereophoto/
The Watchman is a cardiac implant that covers / closes off the left atrial appendage to reduce the risk of stroke in patients with non-valvular Afib (atrial fibrillation). It is a surgical alternative to anti-coagulation with medication. Bleeding is a major adverse event of blood thinners which are prominent in the elderly. With this device, patients with Afib can stop taking their anti-coagulation thereby reducing the risk of bleeding while still lowering their risk of stroke.
The left atrial appendage is an area of lower flow that does not contribute as much work to the function of the heart. Blood can start to form clots within this space due to situations such as Afib which further impairs the contractility and flow within the atria. By closing off this atrial appendage, less clots can form in the heart which means less potential for a clot to break off and travel to the brain leading to a stroke.
A minimally invasive procedure where access to the heart is gained via catheters running through veins is used to place this device. Both fluoroscopy and TEE (transesophageal echocardigraphy) is used for visualization during deployment. The device has a self-expanding metal mesh structure that is made from nitinol, an allow of nickel & titanium which exhibits shape memory and superelasticity, to allow for compact delivery through the veins to the heart before it is deployed. On the metal mesh is a porous covering of PET (polyethylene terephthalate) knit fabric which allows for the heart to grow over and fully occlude the atrial appendage. This is the second major revision of the device, the Watchman FLX, which allows for improvements such as partial & full recapture, decreased minimum LAA depth required, two rows of 18 J hook anchors, and a fully closed blunt distal end.
Ignore the small hole... This is a heavily-used demo device.
This photo is in 3D crossview. You cross your eyes while keeping the screen centered and it should become one image at the center in 3D. More Instructions for viewing 3D images: www.3dphoto.net/text/viewing/technique.html
Stereo Viewer for all my photos: jongames.com/stereophoto/
The Tracks at Brea Trail
What was once a railroad and train depot, has transformed into a 50-acre linear park that traverses the City across four miles. "The Tracks" features a two-way bike trail, with a separate pedestrian path, nine fitness stations, two bike repair stations, seating areas with shade structures, benches, drinking fountains, and restrooms. There are also interpretive signs along the trail that offer information and photographs on the area’s history, butterfly gardens and low water landscaping.
The Tracks has been in the works for many years. A volunteer community task force worked to gather and analyze information as an early part of the process. Outreach began in May of 2009 and led to three separate visioning workshops and a community survey. An outreach report on that effort was compiled in 2010.
www.ci.brea.ca.us/791/The-Tracks-at-Brea-Trail#:~:text=Vi....
The Tracks at Brea Trail
What was once a railroad and train depot, has transformed into a 50-acre linear park that traverses the City across four miles. "The Tracks" features a two-way bike trail, with a separate pedestrian path, nine fitness stations, two bike repair stations, seating areas with shade structures, benches, drinking fountains, and restrooms. There are also interpretive signs along the trail that offer information and photographs on the area’s history, butterfly gardens and low water landscaping.
The Tracks has been in the works for many years. A volunteer community task force worked to gather and analyze information as an early part of the process. Outreach began in May of 2009 and led to three separate visioning workshops and a community survey. An outreach report on that effort was compiled in 2010.
www.ci.brea.ca.us/791/The-Tracks-at-Brea-Trail#:~:text=Vi....
The Tracks at Brea Trail
What was once a railroad and train depot, has transformed into a 50-acre linear park that traverses the City across four miles. "The Tracks" features a two-way bike trail, with a separate pedestrian path, nine fitness stations, two bike repair stations, seating areas with shade structures, benches, drinking fountains, and restrooms. There are also interpretive signs along the trail that offer information and photographs on the area’s history, butterfly gardens and low water landscaping.
The Tracks has been in the works for many years. A volunteer community task force worked to gather and analyze information as an early part of the process. Outreach began in May of 2009 and led to three separate visioning workshops and a community survey. An outreach report on that effort was compiled in 2010.
www.ci.brea.ca.us/791/The-Tracks-at-Brea-Trail#:~:text=Vi....
Definitely one of my favorites.
Took this at an abandoned insane asylum with my Nikon N70.
No edit, minus text.
View full on black
This 3D stereographic photo is of the CardioMEMS device, an implantable pressure sensor that wirelessly measures pulmonary artery pressures without requiring any batteries. It is used for heart failure patients to monitor their hemodynamics and estimate their volume status. This aids in prophylactically adjusting diuretics and heart failure medications before a patient becomes symptomatic and has to present to a hospital for a heart failure exacerbation. Reducing hospitalizations and HF exacerbations would aim to reduce mortality and improve quality of life.
The device is pretty amazing as it is very small and works indefinitely without batteries. The main component is a 15mm x 3.4mm x 2mm rectangle with two nitinol wire loops on each side that extend the length of the device to 4.5cm. Nitinol is a metal alloy of nickel & titanium that exhibits shape memory and superelasticity. Nitinol is commonly used for stents and other medical devices as it is biocompatible and folds up nicely in a tiny catheter before being deployed in the body where it expands to its full size and shape. This anchors the device in the distal pulmonary artery.
Its theory of operation is exceedingly simple in terms of design. It consists of a three dimensional coil of wire and two metal plates on two wafers of fused silica encased in silicone. The coil is produced through electrodeposition of gold onto a silica wafer in a vacuum chamber. Fusion bonding is used to join the silica wafers. The coil of wire forms an inductor and the two metal plates act as a capacitor in physics & electronics terms. This arrangement connected in a parallel loop forms a resonant LC circuit (L=inductance, C=capacitance). Depending on the capacitance and inductance of the components, the circuit will oscillate at a perferred resonant frequency. The capacitor in the CardioMEMS is exposed and very thin allowing the silica crystal and metal plates to deform with changes in pressure from the blood within the pulmonary artery. Changing the distance between metal plates of a capacitor changes its capacitance value thereby changing the devices resonant frequency. An external machine can ping and excite the coil with various electromagnetic radio frequencies until it is able to find its resonant frequency. By working backwards, the measured frequency can be converted into an estimated capacitance which can be correlated to an estimated pressure measurement.
The device is placed during the right heart catheterization (RHC) procedure when the physician threads catheters from a patient's veins through the right atria, past the tricuspid valve, through the right ventricle, and finally past the pulmonary valve into the pulmonary artery. Fluoroscopy or video x-rays along with radiopaque contrast are used to visualize the blood vessels and guide the catheters to their destination. During the RHC, the cardiologist will use a Swan-Ganz catheter to measure the actual pressure and calibrate the device's measured pressures to actual pressures.
doi.org/10.1177/1753944719826826
This photo is in 3D parallel view. More Instructions for viewing 3D images: www.3dphoto.net/text/viewing/technique.html
Stereo Viewer for all my photos: jongames.com/stereophoto/
This 3D stereographic photo is of a metal model kit that I built. The framing and depth was carefully picked so that the tips of its wings stretch out of the screen! This model is of Hedwig, the snowy owl that Harry Potter received as a birthday present from Hagrid when shopping for his wizard school supplies.
This model is from the Metal Earth Premium Harry Potter Collection. The parts come stamped, laser cut, and engraved on a piece of sheet metal which is usually steel and sometimes brass. Some premium models are painted. The parts must be cut out of the sheet metal using clippers. Then needle nose pliers sometimes with the help of dowels or other curved objects are used to bent and twist the parts to form their final 3D shape. The pieces have tabs and slots that are extremely tiny on the order of a few millimeters to half a centimeter that allow pieces to fit and hold together without glue or other adhesives. This fun hobby has many different models for people to enjoy building. These vary from branded ones such as from movies & comics or companies such as Ford, Boeing, NASA, Kawasaki, Freightliner Trucks, and Western Star Trucks. There are also unbranded models with categories such as wildlife, mythical creatures, architecture, armor, vehicles, ships, aviation, space, construction, music, and many more.
This photo is in 3D parallel view. More Instructions for viewing 3D images: www.3dphoto.net/text/viewing/technique.html
Stereo Viewer for all my photos: jongames.com/stereophoto/
This book should be read from the "mom n' i" set.
The pages are set up in the correct order, to read the text view in the larger format.
“It is one thing to photograph people. It is another to make others care about them by revealing the core of their humanness.”-Paul Strand
Layered psd with editable text. View free video tutorials entitled Working With Digital Frames and Photoshop Templates at ezbackgrounds.com
4.25" x 4.75" - Hand made book
Designed, illustrated, and written by Lisa
Lyrics by Enya
This book is dediated with love to
my friend and mother Janet Christine
This book should be read from the "mom n' i" set.
The pages are set up in the correct order, to read the text view in the larger format.
I love these flowers as they look like tiny blue bells. Each one has slightly different shades of blue. Seen in a botanical garden.
This photo is in 3D crossview. You cross your eyes while keeping the screen centered and it should become one image at the center in 3D. More Instructions for viewing 3D images: www.3dphoto.net/text/viewing/technique.html
Stereo Viewer for all my photos: jongames.com/stereophoto/
Christmas or New Year dark wooden background, Xmas black board framed with season decorations, space for a text, view from above
This is the tip of an RF ablation catheter which is used to correct abnormal heart rhythms. Examples of rhythms that it can correct are atrial flutter, atrial fibrillation, AVNRT, etc. An electrophysiologist (cardiologist who specializes in the electrical conduction of the heart) will insert these catheters and many others at the same time into a patient's veins and guided into their heart using fluoroscopy (video x-rays). They can then use these wires and sensors to measure the electrical signals being conducted in the heart in order to find the area that is producing the abnormal heart signals. Some arrhythmias are caused by loops in the heart that can be corrected by breaking the loop. Once identified, these abberant areas can then be ablated or destroyed via burning with increased temperature in this case. Other types of catheters which are not pictured here may use liquid nitrogen balloons to burn via decreased temperature / freezing instead. This results in breaking the loop that produces the abnormal heart signals, thereby fixing the heart rhythm.
The design of this ablation catheter is very complex and is jam packed into a tube only 8 Fr or 2.667mm in diameter. This model is the TactiFlex™ Sensor Enabled™ Ablation Catheter from the medical device company, Abbott. It has a few interesting features: electromagnetic sensing of the tip position with an associated computer guidance system using other electrode sensors, an integrated force sensor, a flexible metal tip, integrated fluid irrigation to reduce / control the tip's temperature so that other structures are less likely to be damaged accidentally, and three more integrated electrodes. It also has knob that the doctor can twist to bidirectionally articulate the tip of the catheter.
#1 Computer software allows creation of a realtime 3D map of the ablation catheter's position in relation to the other catheters and what voltages / cardiac signals it is picking up. This allows mapping of areas such as the CTI or cavotricuspid isthmus in the right atrium where atrial flutter (a cardiac arrhthmia) most commonly originates. Other areas include the pulmonary veins as a source for atrial fibrillation, and around the AV node & bundle of HIS for AVNRT (atrioventricular nodal reentry tachycardia).
#2 The force sensor in this catheter is especially cool in design. It uses a simple concept from quantum mechanics: the wave property of light to achieve miniscule measurements on the order of nanometers or less. The tip of the catheter houses a tiny titanium structure containing mirrors that deflects very slightly with application of force. This can be measured using lasers that create an interference pattern caused by overlapping light waves. This is known as a technique called Fabry–Pérot interferometry and light interferometry. This allows the doctor to ensure good contact with the tissue that they wish to burn by applying the appropriate force as they cannot visualize any of what the tip of the catheter is doing directly. This is in conjunction to ultrasound imaging, x-ray fluoroscopy, and the electromagnetic sensing maps created.
#3 The newly designed metal tip is laser cut to have a specific pattern that allows for flexion and acts as a spring to provide better tissue contact.
#4 This catheter is an RF or radiofrequency catheter. It produces high power radio waves of electrical energy that radiate out of its tip. The frequencies typically used are in the hundreds of kilohertz (kHz). This allows for localized heating of nearby tissue that absorb this concentrated radio energy similar in idea to a microwave but with lower frequency waves. The tip itself should remain cool to avoid damaging other unintended structures when being moved after ablating a certain location in the heart. This is measured from a thermocouple near the catheter tip. The tip also should remain cool to prevent boiling of the blood which could lead to a "steam pop". This may lead to production of gas within the circulatory system which could be dangerous to the patient if it is produced in sufficient quantities. If the gas bubble is near enough to sensitive structures such as capillaries or arterioles, it could form an air embolus that blocks normal blood flow to a structure in the body. To prevent these complications and reduce risk, the pictured catheter uses fluid that flows out of holes in tip to cool itself.
www.cardiovascular.abbott/int/en/hcp/products/electrophys...
www.cardiovascular.abbott/int/en/hcp/products/electrophys...
www.cardiovascular.abbott/int/en/hcp/products/electrophys...
This photo is in 3D parallel view. More Instructions for viewing 3D images: www.3dphoto.net/text/viewing/technique.html
Stereo Viewer for all my photos: jongames.com/stereophoto/
View near Mitford, Morpeth, Northumberland photographed by Matthew Auty (1850 - 1895) based in Front Street Tynemouth. A tobacconist and photographer who it is claimed to be the first to introduce the continental idea of picture postcards to the north of England. - circa 1890
Christmas or New Year dark wooden background, Xmas black board framed with season decorations, space for a text, view from above
NASA-Text: View of the crescent Earth rising above the lunar horizon over the Ritz Crater. Image taken during the Apollo 17 mission on Revolution 66. Original film magazine was labeled PP. Film type was SO-368 Color Ektachrome MS CEX,Color Reversal, 250mm lens., Longitude 98.2 East, Azimuth 264, Altitude 113 km.
Credit: NASA
NASA Identifier: as17-152-23274
This photo is in 3D parallel view. More Instructions for viewing 3D images: www.3dphoto.net/text/viewing/technique.html
Stereo Viewer for all my photos: jongames.com/stereophoto/
This 3D stereographic photo is of the CardioMEMS device, an implantable pressure sensor that wirelessly measures pulmonary artery pressures without requiring any batteries. It is used for heart failure patients to monitor their hemodynamics and estimate their volume status. This aids in prophylactically adjusting diuretics and heart failure medications before a patient becomes symptomatic and has to present to a hospital for a heart failure exacerbation. Reducing hospitalizations and HF exacerbations would aim to reduce mortality and improve quality of life.
The device is pretty amazing as it is very small and works indefinitely without batteries. The main component is a 15mm x 3.4mm x 2mm rectangle with two nitinol wire loops on each side that extend the length of the device to 4.5cm. Nitinol is a metal alloy of nickel & titanium that exhibits shape memory and superelasticity. Nitinol is commonly used for stents and other medical devices as it is biocompatible and folds up nicely in a tiny catheter before being deployed in the body where it expands to its full size and shape. This anchors the device in the distal pulmonary artery.
Its theory of operation is exceedingly simple in terms of design. It consists of a three dimensional coil of wire and two metal plates on two wafers of fused silica encased in silicone. The coil is produced through electrodeposition of gold onto a silica wafer in a vacuum chamber. Fusion bonding is used to join the silica wafers. The coil of wire forms an inductor and the two metal plates act as a capacitor in physics & electronics terms. This arrangement connected in a parallel loop forms a resonant LC circuit (L=inductance, C=capacitance). Depending on the capacitance and inductance of the components, the circuit will oscillate at a perferred resonant frequency. The capacitor in the CardioMEMS is exposed and very thin allowing the silica crystal and metal plates to deform with changes in pressure from the blood within the pulmonary artery. Changing the distance between metal plates of a capacitor changes its capacitance value thereby changing the devices resonant frequency. An external machine can ping and excite the coil with various electromagnetic radio frequencies until it is able to find its resonant frequency. By working backwards, the measured frequency can be converted into an estimated capacitance which can be correlated to an estimated pressure measurement.
The device is placed during the right heart catheterization (RHC) procedure when the physician threads catheters from a patient's veins through the right atria, past the tricuspid valve, through the right ventricle, and finally past the pulmonary valve into the pulmonary artery. Fluoroscopy or video x-rays along with radiopaque contrast are used to visualize the blood vessels and guide the catheters to their destination. During the RHC, the cardiologist will use a Swan-Ganz catheter to measure the actual pressure and calibrate the device's measured pressures to actual pressures.
doi.org/10.1177/1753944719826826
This photo is in 3D crossview. You cross your eyes while keeping the screen centered and it should become one image at the center in 3D. More Instructions for viewing 3D images: www.3dphoto.net/text/viewing/technique.html
Stereo Viewer for all my photos: jongames.com/stereophoto/
Christmas or New Year dark wooden background, Xmas black board framed with season decorations, space for a text, view from above
This 3D stereographic photo is of a metal model kit that I put together. It is of Hedwig, the snowy owl that Harry Potter received as a birthday present from Hagrid when shopping for his wizard school supplies.
This model is from the Metal Earth Premium Harry Potter Collection. The parts come stamped, laser cut, and engraved on a piece of sheet metal which is usually steel and sometimes brass. Some premium models are painted. The parts must be cut out of the sheet metal using clippers. Then needle nose pliers sometimes with the help of dowels or other curved objects are used to bent and twist the parts to form their final 3D shape. The pieces have tabs and slots that are extremely tiny on the order of a few millimeters to half a centimeter that allow pieces to fit and hold together without glue or other adhesives. This fun hobby has many different models for people to enjoy building. These vary from branded ones such as from movies & comics or companies such as Ford, Boeing, NASA, Kawasaki, Freightliner Trucks, and Western Star Trucks. There are also unbranded models with categories such as wildlife, mythical creatures, architecture, armor, vehicles, ships, aviation, space, construction, music, and many more.
This photo is in 3D crossview. You cross your eyes while keeping the screen centered and it should become one image at the center in 3D. More Instructions for viewing 3D images: www.3dphoto.net/text/viewing/technique.html
Stereo Viewer for all my photos: jongames.com/stereophoto/
This is a fanmade minigame of the Zakum Party Quest which includes the El Nath village, mine / cave maps, and the lower level of Orbis Tower. The fan-made game was developed by RYU Russell along with team members: Kaytiz, Baseok, Farewell, HalfEar, dding_one, & See_N. Link to the release video is here: www.youtube.com/watch?v=XhBkTzHaIcc Sadly the game download links were taken down due to copyright issues. It is unfair that a totally free fan-made work of art was taken down. The level of the production and design is extremely professional and amazing for what a few immersed fans can create.
In this minigame, you are able to use both a mock 2D side-scrolling camera of the 3D environment or a third person 3D view to play depending on the map's environment. You may kill monsters using various skills for money and potions, buy items in shops, and complete the Zakum boss fight.
The original game that this fan-made version is based of off is Maplestory, a free-to-play 2D side scrolling MMORPG (massively multiplayer online role-playing game), which was developed by Wizet, a South Korean company, that was bought by Nexon their publishing company. The original game released in 2003 for Korea and Japan with their entrance to the North American market occurring in 2005. Its unique art style and memorable soundtrack gives a warm feeling of nostalgia to old players.
This photo is in 3D parallel view. More Instructions for viewing 3D images: www.3dphoto.net/text/viewing/technique.html
Stereo Viewer for all my photos: jongames.com/stereophoto/
“There is only you and your camera. The limitations in your photography are in yourself, for what we see is what we are.” -Ernst Haas
The 10x10 portion of the most recent series. Layered psd file with editable text. View our free tutorials at ezbackgrounds.com entitled "Working With Digital Frames" and "Photoshop Templates".
This 3D stereographic photo is of the CardioMEMS device, an implantable pressure sensor that wirelessly measures pulmonary artery pressures without requiring any batteries. It is used for heart failure patients to monitor their hemodynamics and estimate their volume status. This aids in prophylactically adjusting diuretics and heart failure medications before a patient becomes symptomatic and has to present to a hospital for a heart failure exacerbation. Reducing hospitalizations and HF exacerbations would aim to reduce mortality and improve quality of life.
The device is pretty amazing as it is very small and works indefinitely without batteries. The main component is a 15mm x 3.4mm x 2mm rectangle with two nitinol wire loops on each side that extend the length of the device to 4.5cm. Nitinol is a metal alloy of nickel & titanium that exhibits shape memory and superelasticity. Nitinol is commonly used for stents and other medical devices as it is biocompatible and folds up nicely in a tiny catheter before being deployed in the body where it expands to its full size and shape. This anchors the device in the distal pulmonary artery.
Its theory of operation is exceedingly simple in terms of design. It consists of a three dimensional coil of wire and two metal plates on two wafers of fused silica encased in silicone. The coil is produced through electrodeposition of gold onto a silica wafer in a vacuum chamber. Fusion bonding is used to join the silica wafers. The coil of wire forms an inductor and the two metal plates act as a capacitor in physics & electronics terms. This arrangement connected in a parallel loop forms a resonant LC circuit (L=inductance, C=capacitance). Depending on the capacitance and inductance of the components, the circuit will oscillate at a perferred resonant frequency. The capacitor in the CardioMEMS is exposed and very thin allowing the silica crystal and metal plates to deform with changes in pressure from the blood within the pulmonary artery. Changing the distance between metal plates of a capacitor changes its capacitance value thereby changing the devices resonant frequency. An external machine can ping and excite the coil with various electromagnetic radio frequencies until it is able to find its resonant frequency. By working backwards, the measured frequency can be converted into an estimated capacitance which can be correlated to an estimated pressure measurement.
The device is placed during the right heart catheterization (RHC) procedure when the physician threads catheters from a patient's veins through the right atria, past the tricuspid valve, through the right ventricle, and finally past the pulmonary valve into the pulmonary artery. Fluoroscopy or video x-rays along with radiopaque contrast are used to visualize the blood vessels and guide the catheters to their destination. During the RHC, the cardiologist will use a Swan-Ganz catheter to measure the actual pressure and calibrate the device's measured pressures to actual pressures.
doi.org/10.1177/1753944719826826
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