Aortic root dimension measurement by first-pass radionuclide angiography.


A method for measuring the ascending aortic cross-sectional dimension is reported. First-pass radionuclide angiocardiography was performed in 53 patients with various cardiac diseases. The number of pixels from superior vena cava/right atrium junction to the main pulmonary artery were counted horizontally and converted to distance in centimeters. Aortic… (More)


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