Cardiac real-time imaging using SENSE

• Published in: Magnetic resonance in medicine Vol. 43; no. 2; pp. 177 - 184
• Main Authors: Weiger, Markus, Pruessmann, Klaas P., Boesiger, Peter
• Format: Journal Article
• Language: English
• Published: New York John Wiley & Sons, Inc 01.02.2000; Williams & Wilkins
• Subjects: Biological and medical sciences; cardiac imaging; Cardiovascular system; Investigative techniques, diagnostic techniques (general aspects); Medical sciences; MRI; Radiodiagnosis. Nmr imagery. Nmr spectrometry; real-time imaging; SENSE; sensitivity encoding; Human; Image quality; Improvement; Sensitivity analysis; Device; Myocardium; Medical imagery; Feasibility; Circulatory system; Echo planar imaging; Nuclear magnetic resonance imaging; Real time system
• ISSN: 0740-3194; 1522-2594
• DOI: 10.1002/(SICI)1522-2594(200002)43:2<177::AID-MRM3>3.0.CO;2-1

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. Magn Reson Med 43:177–184, 2000. © 2000 Wiley‐Liss, Inc.