TRACKING OF CEREBRAL VESSELS IN MR-ANGIOGRAPHY AFTER HIGHPASS FILTERING

被引:10
作者
KLOSE, U
PETERSEN, D
MARTOS, J
机构
[1] Department of Neuroradiology, University of Tübingen
[2] National Institute for Neurosurgery, Budapest
关键词
MAGNETIC RESONANCE ANGIOGRAPHY (MRA); MAXIMUM INTENSITY PROJECTION (MIP); CEREBRAL VESSELS; HIGHPASS FILTERING;
D O I
10.1016/0730-725X(94)00095-K
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
Maximum intensity projection (MIP), the commonly used technique for calculating MR-angiograms from three-dimensional (3D) datasets, often fails to visualize small vessels due to superposition of background signal. An improved vascular depiction can be reached by application of a connectivity algorithm, but a very good delimitation of vessel signals from signals of stationary tissue is required for this technique. Results of intracranial vessel tracking could be improved by a 3D interpolation and a preceding highpass filtering of the 3D image dataset.
引用
收藏
页码:45 / 51
页数:7
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