The importance of heart rate response during myocardial perfusion imaging

Filter selection for 99mTc-Sestamibi myocardial perfusion SPECT imaging [Persian]

Myocardial perfusion SPECT imaging with Tc99m-sestamibi is the most accurate non-invasive means of detecting coronary artery disease and assessing the severity of perfusion abnormalities in the patients with coronary stenosis. Though simple and straight forward the results produced by the technique is very much affected by the details being used. One of the main problems with the test, wh...

Tetrofosmin Extracardiac Uptake During Myocardial Perfusion Imaging

Myocardial perfusion characteristics during machine perfusion for heart transplantation.

BACKGROUND Optimal parameters for machine perfusion preservation of hearts prior to transplantation have not been determined. We sought to define regional myocardial perfusion characteristics of a machine perfusion device over a range of conditions in a large animal model. METHODS Dog hearts were connected to a perfusion device (LifeCradle, Organ Transport Systems, Inc, Frisco, TX) and cold p...

Importance of organ preservation solution composition in reducing myocardial edema during machine perfusion for heart transplantation.

OBJECTIVE Machine perfusion preservation has been used experimentally to extend the storage interval of donor hearts. We previously demonstrated that machine perfusion with glucose-supplemented Celsior preservation solution led to superior reperfusion function but resulted in increased myocardial edema compared with conventional static preservation. We hypothesized that other solutions that con...

Double-gated myocardial ASL perfusion imaging is robust to heart rate variation.

PURPOSE Cardiac motion is a dominant source of physiological noise (PN) in myocardial arterial spin labeled (ASL) perfusion imaging. This study investigates the sensitivity to heart rate variation (HRV) of double-gated myocardial ASL compared with the more widely used single-gated method. METHODS Double-gating and single-gating were performed on 10 healthy volunteers (n = 10, 3F/7M; age, 23-3...