The cadaveric perfusion and angiography as a teaching tool: imaging the intracranial vasculature in cadavers.

Background and Study Aim To enhance the visualization of the intracranial vasculature of cadavers under gross examination with a combination of imaging modalities. Material and Methods A total of 20 cadaver heads were used to test two different perfusion techniques. First, fixed cadaver heads were perfused with water; second, fresh cadavers were perfused with saline and 10% formalin.

C-arm CT measurement of cerebral blood volume and cerebral blood flow using a novel high-speed acquisition and a single intravenous contrast injection.

Background And Purpose: Assessment of perfusion parameters is important in the selection of patients who are most likely to benefit from revascularization after an acute ischemic stroke. The aim of this study was to evaluate the feasibility of measuring cerebral perfusion parameters with the use of a novel high-speed C-arm CT acquisition in conjunction with a single intravenous injection of contrast.

Materials And Methods: Seven canines had experimentally induced focal ischemic regions confirmed by CT perfusion imaging.

C-arm CT measurement of cerebral blood volume using intra-arterial injection of contrast medium: an experimental study in canines.

Background And Purpose: Measurement of perfusion parameters is typically done using an intravenous injection of contrast medium. This purpose of this study was to evaluate the feasibility of measuring regional and global CBV using C-arm CT with IA injections of contrast medium.

Materials And Methods: Twelve canines were studied.

A large and giant bifurcation aneurysm model in canines: proof of feasibility.

Background And Purpose: To our knowledge, no reproducible animal model of a giant bifurcation type aneurysm has been described. It was our aim to develop a 1-stage and reproducible model of a venous pouch giant aneurysm in canines.

Materials And Methods: Nine canines were involved.

Aneurysm ostium angle: a predictor of the need for stent as assistance for endovascular aneurysm coiling in internal carotid artery sidewall aneurysms.

Background And Purpose: There is no satisfactory parameter that can predict the need for assistant devices for endovascular aneurysm coiling. Our aim was to evaluate the utility of MOA as a predictor of the need for stent-assisted coiling in ICA sidewall aneurysms.

Materials And Methods: From a retrospective review of an internal data base, 55 consecutive ICA sidewall aneurysms were identified.