Quantification of left ventricular ejection fraction using through-time radial GRAPPA for real-time imaging
نویسندگان
چکیده
Background Cardiac MRI requires a steady cardiac rhythm for ECGgating, and multiple breath-holds to minimize respiratory artifacts. By employing a non-Cartesian parallel imaging in form of through-time radial GRAPPA [1], accelerated imaging can be performed with temporal resolutions of < 50 ms, obviating the need for gating or breath-holding. breath-holding. We tested the hypothesis that volumetric measurements in the LV obtained with the real-time method could replace traditional measurements.
منابع مشابه
Evaluation of left ventricular ejection fraction using through-time radial GRAPPA
BACKGROUND The determination of left ventricular ejection fraction using cardiovascular magnetic resonance (CMR) requires a steady cardiac rhythm for electrocardiogram (ECG) gating and multiple breathholds to minimize respiratory motion artifacts, which often leads to scan times of several minutes. The need for gating and breathholding can be eliminated by employing real-time CMR methods such a...
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