What s the difference between PET and SPECT scans? The two imaging technologies make it possible for physicians to look at the heart muscle and other organs in the body. Cardiac PET imaging is somewhat different from a cardiac SPECT scan. Here is a breakdown of some similarities and vital differences between these two medical tools.
Details
If a physician wants to look at cardiac blood flow precisely, the medical team will opt for cardiac PET imaging because it is superior in measuring this factor. Blood flow is one reading doctors use to identify cardiovascular disease, so this measurement is essential during the diagnosis stage. What is the difference between PET and SPECT scans? In this case, the PET image is more refined and gives the cardiologist a detailed picture of the heart’s function and flow.
Radiotracers
PET and SPECT scans use different tracers. A radiotracer helps create 3D pictures. The PET tracer uses positrons, and the SPECT utilizes gamma rays. The PET version is helpful for investigating problems with the liver, gallbladder, or kidneys; it is beneficial in diagnosing internal organ issues. Both devices use radiopharmaceuticals.
Image Quality
When it comes to image quality, cardiac PET imaging is typically clearer and more exact because of its ability to produce high-resolution pictures. PET imaging ranges between five and seven millimeters. Because of this quality, physicians can see cardiac circulation on a granular scale. A SPECT’s resolutions fall between 12 and 15 millimeters. For more information on the differences between a PET and SPECT scan, contact Cardiac Imaging, Inc. today.
