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Tetralogy of Fallot: Postoperative Delayed Recovery of Left Ventricular Stroke Volume after Physical Exercise—Assessment with Fast MR Imaging¹

¹ From the Departments of Radiology (A.A.W.R., A.d.R., H.J.L., J.D., P.K.), Cardiology (A.A.W.R., E.E.v.d.W.), Pediatric Cardiology (A.A.W.R., W.A.H.), and Pulmonology (J.G.v.d.A.), Leiden University Medical Center, Albinusdreef 2, Bldg 1-C2S, 2333 ZA Leiden, the Netherlands; and Interuniversity Cardiology Institute of the Netherlands, Utrecht (A.A.W.R., A.d.R., E.E.v.d.W.). Received July 9, 2001; revision requested August 20; final revision received April 15, 2002; accepted May 14. Address correspondence to H.J.L. (e-mail: h.j.lamb@lumc.nl).

In six asymptomatic patients with corrected tetralogy of Fallot and nine healthy control subjects, the authors assessed left ventricular (LV) function during recovery from supine bicycle exercise by performing fast magnetic resonance (MR) flow mapping in the ascending aorta. Abnormal recovery of LV function after exercise was observed in the patients. MR flow mapping allows assessment of cardiac recovery after exercise.

© RSNA, 2002

Index terms: Heart, diseases, 51.145 • Heart, function, 524.145 • Heart, MR, 51.121416 • Tetralogy of Fallot, 51.145

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