Fluoroscopic Guidance
Fluoroscopic Guidance - Related Videos
10:46
Non-fluoroscopic Catheter Tracking for Fluoroscopy Reduction in Interventional Electrophysiology
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Cited by 4 •
2015
Radiation exposure is an underestimated risk in complex ablation procedures. Here, we describe a protocol to significantly decrease fluoroscopy time and dosage for both the patient and the lab staff by using a novel non-fluoroscopic catheter visualization system.
08:30
X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
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Cited by 2 •
2011
We are developing a dynamic adaptive exposure technique using our scanning beam digital X-ray system. Rather than exposing an object uniformly, the exposure is adapted depending on the opacity of the object. Here we show an experiment on an anthropomorphic phantom that resulted in a dose saving of 30%.
10:14
Automated Robotic Dispensing Technique for Surface Guidance and Bioprinting of Cells
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Cited by 9 •
2016
This protocol describes a bioprinting methodology using an automated robotic depositing system that incorporates etched topographical guidance cues with the precision deposition of a cell bearing hydrogel bioink. The printed cells are directly delivered to the etched features and are able to sense and orientate with them.
10:30
Use of pHluorin to Assess the Dynamics of Axon Guidance Receptors in Cell Culture and in the Chick Embryo
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Cited by 10 •
2014
We describe here the use of a pH-sensitive green fluorescent protein variant, pHluorin, to study the spatio-temporal dynamics of axon guidance receptors trafficking at the cell surface. The pHluorin-tagged receptor is expressed both in cell culture and in vivo, using electroporation of the chick embryo.
10:07
Measuring Sperm Guidance and Motility within the Caenorhabditis elegans Hermaphrodite Reproductive Tract
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Cited by 10 •
2019
Sperm must successfully navigate through the oviduct to fertilize an oocyte. Here, we describe an assay for measuring sperm migration within the C. elegans hermaphrodite uterus. This assay can provide quantitative data on sperm distribution within the uterus after mating, as well as on speed, directional velocity, and reversal frequency.
FAQs
The fluoroscope directs X-rays through the body, and the detector captures the radiation that passes through tissues. It then converts that transmitted radiation into images that can be viewed as anatomy and instruments change position. Continuous or pulsed operation supports visualization during an intervention, allowing clinicians to monitor movement rather than rely only on static images.
Radiopaque contrast agents make selected structures easier to distinguish on fluoroscopic images. When introduced into blood vessels or ducts, they outline these pathways so clinicians can follow their anatomy during procedures such as angiography. Contrast therefore adds structural detail that may not be sufficiently visible from transmitted X-rays alone.
Because fluoroscopy uses X-rays while a procedure is being performed, radiation exposure must be managed as part of clinical practice. Dose optimization and protective practices help limit exposure while preserving the imaging needed for accurate guidance. This balance is important when clinicians must observe anatomy and instrument movement throughout an intervention.
Real-time imaging shows the relationship between a medical instrument and the targeted internal anatomy as the instrument moves. That information helps clinicians assess whether the instrument is being directed toward the intended location during catheter placement, injections, biopsies, or orthopedic procedures. The resulting visual feedback supports more precise procedural navigation.
The clinician uses the fluoroscope to project X-rays through the relevant body region while the detector produces the live image. An instrument is then advanced or positioned under visual monitoring. When needed, a radiopaque contrast agent is introduced to outline vessels or ducts, while dose optimization and protective practices remain part of the procedure.
Fluoroscopic guidance supports several intervention types, including catheter placement, angiography, injections, biopsies, and orthopedic procedures. Its usefulness comes from combining visualization of internal structures with observation of instruments during movement. The specific target may be highlighted further with contrast, particularly when clinicians need to outline blood vessels or ducts.