Imaging Protocols and Tips for Exam Interpretation-Imaging Protocols and Tips for Exam Interpretation

Video Transcription

Video Summary

Dr. Sharmila Dorbala from Brigham and Women's Hospital discusses PET myocardial perfusion imaging protocols and exam interpretation, highlighting techniques to optimize imaging and evaluation. She outlines the need for standard patient preparation similar to SPECT MPI, including fasting (NPO) and caffeine restriction. Three radiotracers are approved for use: Rubidium-82, N13 ammonia, and F18 fluorpyridase. Stress protocols include vasodilators such as trigadenosone, dipyridamol, adenosine, dobutamine, and exercise options. Interpretation focuses on evaluating image quality, assessing motion artifacts, and ensuring adequate hyperemic response. She emphasizes the significance of myocardial blood flow quantification and the use of hybrid scanners for coronary calcification assessment. Artifacts such as lung uptake and excess blood pool activity, depending on the radiotracer used, are also discussed, alongside the importance of correct image registration to avoid false perfusion defects.

Keywords

PET myocardial perfusion imaging

radiotracers

stress protocols

image interpretation

motion artifacts

quality control

PET myocardial perfusion

imaging protocols

myocardial blood flow

image artifacts