Why the study?
Can Doppler M-mode imaging adapted for tissue motion detect myocardial velocity gradients to assess regional myocardial contractility in normal volunteers?
Population
9 normal volunteers undergoing 28 M-mode scans at different locations in the left-ventricle posterior wall
Comparison
Doppler M-mode imaging adapted to display tissue… vs Pulse-echo M-mode imaging
Design
Cross-sectional
Authors
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Supports Doppler M-mode feasibility for velocity gradients in normals; leaves open validation for regional contractility assessment in patients.
Can Doppler M-mode imaging adapted for tissue motion detect myocardial velocity gradients to assess regional myocardial contractility in normal volunteers?
Doppler velocity gradients are consistent with wall thickness changes, indicating potential for assessing regional myocardial contractility.
Fleming et al. (1994) studied this question.
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