Adenosine Stress (Tech)-Adenosine Stress CMR

Video Transcription

Video Summary

The talk introduced stress perfusion CMR as an emerging tool for cardiac risk stratification. It reviewed why it is valuable: compared with nuclear imaging and stress echo, CMR offers high spatial/temporal resolution, no ionizing radiation, and comprehensive assessment of ischemia, function, and viability. The speaker explained vasodilator stress agents, especially adenosine, dipyridamole, and regadenoson, along with contraindications, preparation, and reversal with aminophylline. The presentation described how first-pass perfusion imaging is performed, key technical requirements, common artifacts, and how inducible ischemia is diagnosed by stress perfusion defects without matching late gadolinium enhancement. Finally, it highlighted evidence that stress perfusion CMR has strong diagnostic accuracy and promising prognostic value, including in high-risk groups such as patients with established coronary disease, diabetes, and obesity.

Keywords

stress perfusion CMR

cardiac risk stratification

vasodilator stress agents

adenosine regadenoson dipyridamole

inducible ischemia

late gadolinium enhancement