Cardiac X-ray Imaging
Cardiac X-ray Imaging - Related Videos
07:54
Preparing Adherent Cells for X-ray Fluorescence Imaging by Chemical Fixation
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Cited by 14 •
2015
Here, we present a protocol on how to determine the quantity and distribution of metals in a sample using synchrotron X-ray fluorescence. We focus on adherent cells, and describe the chemical fixation method to prepare this sample. We then describe how to mount and image the sample using synchrotron X-rays.
10:39
Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
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Cited by 10 •
2016
The measurement protocol and data analysis procedure are given for obtaining transverse coherence of a synchrotron radiation X-ray source along four directions simultaneously using a single 2-D checkerboard phase grating. This simple technique can be applied for complete transverse coherence characterization of X-ray sources and X-ray optics.
11:37
Cardiac Magnetic Resonance Imaging
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2023
Source: Frederick W. Damen and Craig J. Goergen, Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana In this video, high field, small-bore magnetic resonance imaging (MRI) with physiological monitoring is demonstrated to acquire gated cine loops of the murine cardiovascular system. This procedure provides a basis for assessing left-ventricular function, visualizing vascular networks, and quantifying motion of organs due to respiration. Comparable small animal...
01:24
X-ray Imaging
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2023
German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with X-rays, and by 1900, X-ray was widely...
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%.
FAQs
Image brightness reflects how strongly different chest structures attenuate, or reduce, the X-ray beam. Tissues with differing density and thickness produce distinct levels of brightness, allowing the heart, great vessels, lungs, and devices to appear with varying contrast. Clinicians use these visual differences to assess cardiovascular structure and identify related changes within the chest.
Fluoroscopy provides continuously updated, real-time views rather than only a static image. This temporal information is particularly useful when clinicians need to observe the position or movement of structures, catheters, or implanted devices during an intervention. Its ability to display procedures as they occur makes it valuable for guiding catheter-based cardiac treatments.
Contrast agents increase the visibility of blood vessels or cardiac chambers that may not be sufficiently outlined by the surrounding tissues alone. By making these structures more distinct on X-ray images, contrast-enhanced examinations can support assessment of internal cardiovascular anatomy. Their use is especially relevant when clinicians need clearer visualization of vessels or chamber outlines.
The technique can visualize implanted devices within the chest, including pacemakers and valve replacements. Clinicians can assess their visible position and relationship to surrounding cardiac or thoracic structures on the resulting images. During fluoroscopy, real-time visualization also supports monitoring device-related procedures and catheter-based interventions where immediate positional information is important.
During catheter-based procedures, fluoroscopy supplies real-time X-ray views that help clinicians follow the intervention as it progresses. This guidance can show the changing position of catheters and relevant cardiac structures, while contrast agents may outline vessels or chambers when additional visualization is needed. The combined approach supports procedural navigation and immediate visual assessment.
Its rapid acquisition and broad availability make cardiac X-ray imaging useful when clinicians need timely information about cardiovascular and related thoracic findings. It can support evaluation of heart size, pulmonary congestion, valve replacements, pacemakers, and catheter-based procedures. These practical advantages help explain why the method remains clinically valuable even when other imaging techniques are available.
Cardiac X-ray imaging provides important structural and procedural information, but clinical evaluation may require additional imaging. Echocardiography, CT, or MRI can supplement the X-ray findings when clinicians need a broader assessment of the cardiovascular system. Using complementary methods helps place visible changes in the heart, vessels, lungs, or devices within a more complete diagnostic evaluation.