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- W184937512 abstract "Purpose: The six minute walk test (6MWT) as defined by the American Thoracic Society integrates responses of pulmonary and cardiovascular systems. We tried to predict 6MWT distance in subjects with pulmonary hypertension (PH) using 320 slice CT, transthoracic echocardiogram (TTE), and right heart catheter (RHC) examinations. Materials and Methods: 16 consecutive PH subjects (11 female, mean 54 years, 7 primary PH, 9 chronic pulmonary arterial thromboembolism) underwent retrospective ECG gated 320 slice CT, RHC and 6MWT. CT images were reconstructed every 5% from 0-95% of R-R interval. We quantified right ventricular (RV) end systole volumes (RVESV) and end diastole volumes (RVEDV), and RV ejection fraction (RVEF) by CT, maximum RV area (maxRVA) and RV fractional area change (RVFAC) by TTE, and mean pulmonary artery pressure (MPAP) by RHC. Results: RVEDV and RVEF were 143.8±53.2ml and 46.7±10.6%. maxRVA, RVFAC on TTE, MPAP on RHC and 6MWT distance were 26.7±5.8, 29.1±8.9%, 35.8±14.2mmHg, and 404.8±85.7m. A..." @default.
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- W184937512 date "2011-11-22" @default.
- W184937512 modified "2023-09-25" @default.
- W184937512 title "Abstract 9296: Prediction of Six Minute Walk Test Distance Using ECG Gated 320 Slice CT, Echocardiogram and Right Heart Catheter Examinations in Subjects with Pulmonary Hypertension in Multiple Regression Models" @default.
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