Modules 17b - Myocardial Blood Flow with 82Rb PET Imaging Case Reviews-Myocardial Blood Flow with 82Rb PET Imaging Case Reviews (Slides)

Myocardial Blood Flow with 82Rb PET Imaging Case Reviews (Slides)

Pdf Summary

In this module on myocardial blood flow with Rb-82 PET perfusion imaging, several case studies were presented. The first case involved an 81-year-old female with a history of hypertension and hyperlipidemia who was referred for evaluation of chest pain. The patient had a normal perfusion scan and showed good prognostic markers, including an increase in ejection fraction with stress and a myocardial flow reserve greater than 2, indicating a low likelihood of multi-vessel obstructive disease.<br /><br />The second case featured a 58-year-old female with a history of moderate aortic stenosis who was referred for chest pain evaluation. The patient had normal perfusion and myocardial blood flow, but there was transient ischemic dilation present due to mis-registration. The third case involved a 60-year-old male with a history of hypertension, hyperlipidemia, and obstructive sleep apnea who was referred for evaluation of dyspnea. The patient had abnormal perfusion and myocardial blood flow initially due to mis-registration but showed normal results upon re-construction of stress images.<br /><br />The fourth case presented a 74-year-old male with end-stage renal disease on hemodialysis who was referred for ischemia evaluation due to elevated troponin. The study was non-diagnostic due to pooling of Rb-82 in the left subclavian vein region. The fifth case featured a 65-year-old male with moderate stenosis in the right coronary artery and left anterior descending artery on CT angiography. While the patient had normal perfusion and ejection fraction, there were accuracy issues with stress myocardial blood flow quantification due to a delay in stress image acquisition.<br /><br />In the sixth case, a 72-year-old female with hypertension and hyperlipidemia was referred for chest pain evaluation. The patient had normal perfusion, but there were technical issues with stress myocardial blood flow measurement. Finally, the seventh case involved a 74-year-old female with hypertension who was referred for pre-operative risk assessment. The patient had normal perfusion and ejection fraction.<br /><br />Overall, this module highlighted the importance of quality control and understanding the findings from Rb-82 PET perfusion imaging to effectively assess myocardial blood flow and make accurate diagnoses. It emphasized the role of prognostic markers and the potential for mis-registration artifacts in interpreting the results.

Keywords

myocardial blood flow

Rb-82

PET perfusion imaging

case studies

chest pain

prognostic markers

multi-vessel obstructive disease

aortic stenosis

transient ischemic dilation

mis-registration