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Quantitative Assessment of Left Ventricular Function with Interactive Real-Time Spiral and Radial MR Imaging¹

¹ From the Department of Diagnostic Radiology (E.S., A.H.M., R.W.G., A.B.) and Medical Clinic I (J.S., H.P.K., P.H.), University Hospital, Technical University of Aachen, Pauwelsstrasse 30, 52057 Aachen, Germany; Philips Research Laboratories, Hamburg, Germany (T.S.); Department of Medicine (Cardiovascular Division), Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Mass (R.M.B.); and Philips Medical Systems, Best, the Netherlands (R.M.B.). Received March 28, 2002; revision requested May 31; final revision received September 27; accepted October 14. Address correspondence to E.S. (e-mail: spuenti@rad.rwth-aachen.de).

An interactive real-time spiral gradient-echo and an interactive real-time radial steady-state free precession sequence were investigated for the quantitative assessment of left ventricular function. Data were acquired in 18 patients without electrocardiographic triggering and breath holding. With the interactive real-time spiral gradient-echo sequence, significant underestimation of endocardial and epicardial volumes was demonstrated; with the interactive real-time radial steady-state free precession sequence, excellent agreement was shown with standard cardiac-triggered segmented k-space breath-hold steady-state free precession MR imaging. Interactive real-time radial steady-state free precession imaging allows accurate quantitative assessment of left ventricular volumes.

Supplemental material: radiology.rsnajnls.org/cgi/content/full/227/3/870/DC1

© RSNA, 2003

Index terms: Heart, ventricles • Magnetic resonance (MR), cine study, 51.121419, 51.12144 • Magnetic resonance (MR), functional imaging, 51.121412, 51.121419 • Magnetic resonance (MR), volume measurement, 51.12144 • Myocardium, MR, 51.121412, 51.121419, 51.12144

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