mean gradient

mean gradient

Average slope (for example, of a water pipe or drain pipe).
References in periodicals archive ?
CoreValve hemodynamic performance was excellent with a single-digit mean gradient (a measure of blood flow through the valve) of 7.
Echocardiography disclosed a mean gradient of 15 mm Hg across the bioprosthetic tricuspid valve.
2], maximum gradient of the valve was 25 mmHg, mean gradient was 15 mmHg, systolic pulmonary artery pressure was 40 mmHg.
6 cm2/m2), mean gradient +++++40 mmHg or peak jet velocity +++++4m/s.
Her peak gradient was 95 mm Hg, and her mean gradient was 50 mm Hg.
Progressions of mean gradient and relative peak systolic pulmonary artery pressure (sPAP) (ratio of sPAP/baseline sPAP) were significantly greater in patients who developed dyspnea compared with those who did not, whereas no difference was observed for absolute systolic pulmonary artery pressure progression.
2 m/s across the aortic valve, with a peak gradient of 71 mm Hg, a mean gradient of 32 mm Hg, and a calculated aortic valve area of 0.
Hemodynamic results: mean gradient 9 mmHg; peak gradient 15 mmHg after 30 days
Currently, a 100 m difference in elevation is overcome on a 5-km-long section, which corresponds to a mean gradient of approximately 20 .
Echocardiography showed aortic stenosis with a mean gradient of 55 mmHg.