Application analysis of attenuation correction technique in SPECT myocardial perfusion imaging

Artifacts of myocardial perfusion imaging, greatly influence on the image quality and image discrimination, resulting in a high false-positive rate. Many techniques have been developed for correcting various artifacts, including non-X-ray attenuation correction method (such as change-position acquisition, gated acquisition and solid ¹⁵³Gd line-source penetration acquisition) and CT attenuation correction method. Clarify the application scope and advantages and disadvantages of the two methods, so that the clinician can correctly analyze and judge the artifacts in the reading, thereby improving the accuracy of diagnosis. (authors)