Info

🌱 來自: noninvasive evaluation of CAD

Myocardial viability

• Goal: identify hibernating myocardium that could regain fxn after revascularization
• Options: MRI (Se ~95%, Sp ~50%), PET (Se ~90%, Sp ~65%), dobutamine stress echo (Se ~80%, Sp ~80%); SPECT/rest-redistribution (Se ~85%, Sp ~65%)
• Pts w/ ischemic CMP (EF <35%), viability predicts ↑ EF w/ CABG but not survival or benefit of CABG vs. medical Rx (NEJM 2011;364:1617 & 2019;381:739)