Why the study?
Does correction for through-plane motion alter tricuspid flow measurements of RV diastolic function in normal subjects and patients with possible RV disease?
Does correction for through-plane motion alter tricuspid flow measurements of RV diastolic function in normal subjects and patients with possible RV disease?
Correction for through-plane motion significantly alters key parameters of RV diastolic function measured by MR velocity mapping, indicating its importance for accurate RV evaluation.
Correction for through-plane motion alters MR tricuspid flow parameters; supports adjustment in future RV diastolic studies but leaves clinical impact open.
We evaluated the effect of through-plane motion on tricuspid flow measurements performed with MR velocity mapping in nine normal subjects and 15 patients with possible right ventricular (RV) disease. Eight parameters of RV diastolic function were derived from the tricuspid flow measurements, both before and after a correction for through-plane motion. Measurements of E-peak, A-peak, and time-to-peak filling rate changed significantly after correction for through-plane motion (P < .05). Tricuspid flow as a marker of RV diastolic function should be corrected for the effect of through-plane motion to improve functional evaluation of the RV.
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Kayser et al. (1997) studied this question.
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