| Sign In to gain access to subscriptions and/or personal tools. |
Plain Roentgenographic Estimation of Pulmonary Vascular PressuresAn Improved Technique A Catheter-Correlated Study of 215 Patients With Mitral Valvular DiseaseBarnard Institute of Radiology and Cancer, and Institute of Cardiology, Government General Hospital, Madras, India
Barnard Institute of Radiology and Cancer, and Institute of Cardiology, Government General Hospital, Madras, India
Barnard Institute of Radiology and Cancer, and Institute of Cardiology, Government General Hospital, Madras, India Our improvement on Turner's technique enabled more accurate plain x-ray estima tion of pulmonary venous pressure (PVP) up to 60 mm and of systolic pulmonary arterial pressure (PAP) up to 150 mm in 215 patients catheterized for mitral valvular disease. Our improvement comprises (1) five main pul monary artery (MPA) grades 0 to IV accord ing to its area and volume; (2) modified pres sure values assigned for MPA and kinetic energy of the right ventricle (required to pump blood into the pulmonary arterial bed) according to MPA grades; and (3) nine PVP grades from 0 to 8 with corresponding assigned PVP values. These modifications have enhanced the accuracy of the technique up to 85 to 95%.
Angiology, Vol. 30, No. 11,
784-792 (1979) |
|||