Evaluation of left ventricular function using digital subtraction angiography.

Investigation of left ventricular function by digital subtraction angiography.

Twenty five patients who had undergone conventional coronary arteriography and left ventriculography for suspected coronary artery disease had left ventriculography performed by digital subtraction angiography as outpatients; there were no complications requiring admission to hospital. A catheter was introduced percutaneously and positioned in the superior vena cava; 40-50 ml of contrast medium...

MR Digital Subtraction Angiography

Analysis of Subtraction Methods in 3D Contrast-Enhanced MR Digital Subtraction Angiography Yuexi Huang Master of Science 2001 Department of Medical Biophysics University of Toronto 3D Contrast-enhanced MR angiography is promising as a replacement to catheter-based x-ray angiography due to its non-invasive nature. However, the image quality of MR angiography is still inferior to that of x-ray an...

Digital subtraction angiography.

Intravenous angiography using digital video subtraction: intravenous cervicocerebrovascular angiography.

The clinical application of intravenous angiography to study the cervicocerebrovascular system using the digital video subtraction system described in a companion article is reported. About 0.75 ml/kg of a standard 76% iodine contrast solution is injected into an antecubital vein using a power injector. Then 15-20 exposures of the head and neck region at a 1/sec rate are made on the image inten...

[Digital subtraction angiography for hemodynamic evaluation of cerebrovascular reconstructive surgery].

From May, 1982 to May, 1983, 300 consecutive patients were examined by intravenous digital subtraction angiography (DSA) using the Philips DVI system, which had a 512 X 512 matrix for video-imaging. Of those patients, 160 were diagnosed as having ischemic cerebrovascular disease. Attention was focused on 17 cases who were treated by a extracranial-intracranial (EC-IC) bypass and 5 cases treated...