Aneurysms need accurate millimeters (mm). Direct millimeters were lost with digital subtraction angiography (DSA) years ago, with measurements in pixels. Advances in DSA can now give inherent millimeters. The Cerecyte aneurysm coiling trial's angiographic core lab assesses images from compact disc (CD). External fiducials for millimeter calibration are required. Of 25 cases with two 10 mm fiduc...

2D vessel segmentation algorithms working on 2D digital subtraction angiography (DSA) images suffer from inhomogeneous contrast agent distributions within the vessels. In this work, we present a novel semi-automatic vessel segmentation method based on local adaptive contrast enhancement. Either a forward projected 3D centerline or a set of manual selected seed points define the vessel branches ...

In recent years, the incidence of cardiovascular disease is increasing year by year in China, and ischemic cerebrovascular disease caused by atherosclerosis has become a key cause to disability and death. In this paper, a carotid atherosclerosis evaluation scheme based on magnetic resonance imaging (MRI) was proposed. First, blood vessel wall MRI and digital subtraction angiography (DSA) were s...

BACKGROUND A small aneurysm at an unusual location, such as a distal anterior inferior cerebellar artery (AICA) aneurysm, may conceal as a computed tomography angiography (CTA) and digital subtraction angiography (DSA)-occult aneurysm. CASE DESCRIPTION We herein present the case of a patient suffering from a subarachnoid hemorrhage (SAH) with two aneurysms in which the AICA aneurysm was negat...

The small bowel, affected by a host of pathologic conditions can be difficult and challenging to image because of its length and tortuous course. However the small bowel imaging is evolving. There was a time when small-bowel follow-through (SBFT) was the primary and only method of diagnosing diseases of the small bowel. In recent years, there has been availability of a variety of techniques suc...

BACKGROUND Takayasu arteritis is an inflammatory disease of large-diameter arteries. Aorta and its branches are most frequently affected. Takayasu arteritis occurs mainly in young women and, if left untreated, leads to fatal complications. Digital subtraction angiography (DSA) is considered the gold standard in imaging of Takayasu arteritis. CASE REPORT A thirty-five-year-old woman was admitt...

Initial clinical application of a system for digital subtraction angiography (DSA) to the human cardiovascular system in 88 patients is reported. The equipment consisted of a specially designed computer system integrated with a fluoroscopic and radiographic apparatus for digitization, manipulation, and display of data. After intravenous injection of contrast material, adequate visualization of ...

BACKGROUND AND OBJECTIVE Multislice spiral CT angiography (MSCTA) is very important in the diagnosis and treatment of liver diseases. Currently, most studies on three-dimensional MSCTA of the liver vascular system focus on the liver tumors, preoperative assessment of liver transplantation and the systematic anatomy of the liver vascular system. This study was to investigate the clinical applica...

BACKGROUND AND PURPOSE Imaging of the anterior superficial spinal cord arteries by MR angiography is hindered by their small calibers and the similarity in configuration with the anterior superficial spinal cord veins. To validate the location and spatial configuration of the great anterior radiculomedullary artery, (ie, the Adamkiewicz artery [AKA]), contrast-enhanced MR angiography (CE-MRA) w...