Intraoperative digital subtraction angiography in neurovascular disorders

Intraoperative digital subtraction angiography: a review of 112 consecutive examinations.

PURPOSE To examine the effect of intraoperative angiography on neurosurgery and angiographic technical success, safety, and accuracy. METHODS Angiographic studies, surgical reports, and hospital records were reviewed retrospectively for 112 consecutive procedures in which intraoperative angiography was performed during neurosurgery. The results of conventional postoperative angiograms in 28 o...

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.

The use of neurovascular ultrasound versus digital subtraction angiography in acute ischemic stroke.

UNLABELLED Cervical and intracranial arterial evaluation is an important issue for acute ischemic stroke (IS). OBJECTIVE Compare the use of the neurovascular ultrasound examination (NVUE) to digital subtraction angiography (DSA) in acute IS patients for diagnosing significant extracranial and intracranial arteriopathy. METHOD Nonconsecutive patients with IS or transient ischemic attack admi...

Motion compensated digital subtraction angiography

Digital subtraction angiography, whether based on traditional X-ray or MR, su ers from patient motion artifacts. Until now, the usual remedy is to pixel shift by hand, or in some cases performing a global pixel shift semi-automatically. This is time consuming, and cannot handle rotations or local varying deformations over the image. We have developed a fully automatic algorithm that provides fo...