Cardiac real-time imaging using SENSE. SENSitivity Encoding scheme.
Sensitivity encoding is used to improve the performance of real-time MRI. The encoding efficiency of single-shot and segmented echo-planar imaging is tripled by means of a 6-element receiver coil array. The feasibility of this approach is verified for double oblique cardiac real-time imaging of human subjects at rest as well as under physiological stress. Sample images are presented with scan times per image down to 13 msec at a spatial resolution of 4.1 mm, and 27 msec at a resolution of 2.6 mm. Moreover, multiple slice real-time imaging is demonstrated at a rate of 38 double-frames per second.
Weiger
M
M
Institute of Biomedical Engineering and Medical Informatics, University of Zurich, Switzerland.
Pruessmann
K P
KP
Boesiger
P
P
D016477:Artifacts; D005240:Feasibility Studies; D006321:Heart / Q000033:anatomy & histology*; D006339:Heart Rate; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000295:instrumentation / Q000379:methods* / Q000706:statistics & numerical data; D012680:Sensitivity and Specificity; D013997:Time Factors