Why the study?
Does isovolumic relaxation time measured by Doppler tissue imaging accurately estimate pulmonary arterial systolic pressure in patients with chronic pulmonary hypertension?
Does isovolumic relaxation time measured by Doppler tissue imaging accurately estimate pulmonary arterial systolic pressure in patients with chronic pulmonary hypertension?
Isovolumic relaxation time measured by Doppler tissue imaging is a simple and reproducible parameter that correlates well with pulmonary arterial systolic pressure, offering a valuable alternative when the tricuspid Doppler signal is poor.
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May support noninvasive PASP estimation when tricuspid signals are inadequate; leaves open prospective validation before clinical adoption.
Cabrita et al. (2012) studied this question.
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