AN ALGORITHM FOR MR-ANGIOGRAPHY IMAGE-ENHANCEMENT

被引：28

作者：

CHEN, HG

HALE, J

机构：

[1] Radiologic Imaging Laboratory, Toshiba America MRI, Inc., South San Francisco, California

来源：

MAGNETIC RESONANCE IN MEDICINE | 1995年 / 33卷 / 04期

关键词：

MR ANGIOGRAPHY; VESSEL IMAGE ENHANCEMENT;

D O I：

10.1002/mrm.1910330412

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：

This study describes a three-dimensional (3D) filtering algorithm for magnetic resonance angiography (MRA) image enhancement. Based on the properties of 3D MRA data, the algorithm uses the dispersion range of the 13 outputs of a 3D directional low-pass filter bank to identify the vessel structure and control the processing of MRA data. Vascular structures in the data are preserved while the components of static tissues and isolated noise impulses are reduced by the processing. As a result, the small vessels have been enhanced and visibility of vessels in the projected image has been improved.

引用

页码：534 / 540

页数：7

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