首页   按字顺浏览 期刊浏览 卷期浏览 MAGNETIC RESONANCE ANGIOGRAPHY: TECHNIQUE AND SKULL-BASE APPLICATIONS
MAGNETIC RESONANCE ANGIOGRAPHY: TECHNIQUE AND SKULL-BASE APPLICATIONS

 

作者: John McElveen,   James Saunders,   William Meisler,   Thomas Grist,   Orest Boyko,  

 

期刊: The American Journal of Otology  (OVID Available online 1991)
卷期: Volume 12, issue 5  

页码: 323-328

 

ISSN:0192-9763

 

年代: 1991

 

出版商: OVID

 

数据来源: OVID

 

摘要:

Cerebral angiography has become essential in the evaluation and management of extensive skull-base lesions. However, with a 2.6 percent incidence of neurologic complications and a 0.3 percent incidence of permanent neurologic deficits associated with cerebral angiography, the procedure is not without risk.1 Recent advances in magnetic resonance angiography (MRA), allow one to visualize the skull-base vasculature without need of intravenous contrast injection or radiation exposure.Our initial experience in visualizing the normal vascular anatomy and pathology at the base of skull with this new imaging modality is presented. Two different MRA techniques were used: (1) thin-slice two-dimensional gradient echo pulse sequence acquisition with three-dimensional projection reconstruction, and (2) two-dimensional phase contrast angiography. The specifics of these techniques and their usefulness in the evaluation of lesions involving the skull base are discussed and demonstrated.

 

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