ASNC IMAGING GUIDELINE Myocardial perfusion planar imaging
نویسنده
چکیده
Although single photon emission computed tomography (SPECT) is preferable for myocardial perfusion scintigraphy, in a minimal number of circumstances, planar imagingmay be useful ormay be the onlymodality available. Purpose. To evaluate regional myocardial perfusion and function. Planar imaging is an acceptable method for myocardial perfusion imaging. The anatomy of the heart is sufficiently simple that the imaging specialist can comprehend the location and extent of defects from multiple projections without need of computer reconstruction. Although SPECT imaging is presently considered state-of-the-art for myocardial perfusion imaging and preferable, planar imaging still has a role in the daily routine of a laboratory. Imaging at the bedside of acutely ill patients, or instrumented patients, can only be performed using planar imaging technique and portable gamma cameras. Planar views can be quickly repeated if the patient moves during acquisition. Planar imaging may be the only way to acquire images in very obese patients, who are too heavy for the imaging table of a SPECT camera. It may also be the only way to acquire images in severely claustrophobic patients. Electrocardiography (ECG)-gated planar images can be obtained using standard software for equilibrium radionuclide angiography studies. Finally, planar imaging is the basis for good SPECT imaging. The ability to obtain high-quality planar images is an essential skill, even for those who routinely use SPECT imaging.
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