PMID: 9438445Jan 23, 1998Paper

Right ventricular regional function using MR tagging: normals versus chronic pulmonary hypertension

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Z A FayadLeon Axel

Abstract

Right ventricular (RV) regional function, in both normal and diseased states, is not well characterized. Using 1D MR myocardial tagging, RV and septal intramyocardial segmental shortening was noninvasively measured in ten healthy subjects and in seven patients with chronic pulmonary hypertension. The normal RV free wall regional shortening was not uniform. A pattern of increasing RV free wall short-axis shortening was found from the RV outflow tract to the RV apex, and a more complex pattern of RV free wall long-axis shortening was observed. Both regional short- and long-axis shortening were globally reduced in pulmonary hypertension patients, with the greatest decreases in the RV outflow tract and in the basal septal wall region. Regional RV function can be quantitatively evaluated using MR tagging to determine the impact of chronic pulmonary hypertension on RV performance.

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Citations

May 10, 2005·Medical Image Analysis·Leon AxelDaniel Kim
Jun 10, 2005·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·David C Isbell, Christopher M Kramer
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