The rapid , recent development of intravenous digital subtraction angiography has changed the general philosophy of screening for extracranial carotid artery occ lusive disease. However, digital subtraction angiography equipment is currently very expensive and may remain so. If a lower cost system for good visualization of the carotid artery bifurcations by intravenous injection of contrast mat...

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...

Pseudoaneurysms of the superficial temporal artery are mostly traumatic in origin. Here, a case of a superficial temporal artery aneurysm that emerged following a recraniotomy is presented. A 59-year-old woman was admitted with subarachnoid hemorrhage. She underwent a pterional craniotomy and clipping of a saccular aneurysm of middle cerebral artery bifurcation. A control digital subtraction an...

Carotid bifurcation atherosclerosis was demonstrated in 34 of 108 patients with familial hypercholesterolemia and coronary artery disease by B-scan, continuous-wave Doppler sonography, and intravenous digital subtraction angiography. An intensive combined therapy of diet, colestipol, and nicotinic acid was mounted to control the hypercholesterolemia of these patients. Their serial sonographies ...

Digital subtraction angiography was used as the sole imaging technique in 95 infants and children aged 13 hours to 16 years undergoing cardiac catheterisation for the investigation of congenital heart disease. Injections of diluted contrast medium were made selectively at central sites, and the images were obtained using continuous image intensification fluoroscopy at either 32.25 nC/kg/s (125 ...

We applied computational fluid dynamic (CFD) analysis on the numerical grid of a 3D rotational digital subtraction angiogram obtained in a 22-year-old male patient, with an accidentally discovered vein of Galen malformation associated with single feeder aneurysm, to understand the flow pattern through the two aneurysms and improve our general understanding of hemodynamic characteristics of this...

Carotid cavernous fistula is a serious vascular pathology that commonly misdiagnosed due to clinical signs overlap with several other pathologies and the need for sensitive imaging techniques, most notably digital subtraction angiography, make diagnosis. Here we present case of carotid mimicking orbital cellulitis, ultimately diagnosed magnetic resonance venography.

background and aims. in periapical radiographic technique, the changes will be visible only after considerable deposition or resorption while digital subtraction technique visualizes slight density changes. this study was aimed to compare visualization of density changes in conventional periapical radiographs and digital subtraction technique with or without image enhancement. materials and met...

Digital tomosynthesis represents a new technique for digital manipulation of data acquired during a single tomographic sweep. With the aid of a computer, data can be processed to yield images in any parallel plane of the body. This technique allows rapid tomographic studies requiring a much lower radiation dose to the patient. Dynamic studies such as angiotomography are feasible, and applicatio...