Adaptive approximation of outer surface of blood vessels in magnetic resonance angiography
Ding, D.; Xia, B.; Wang, L.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 29(6): 1168-1173; 1183
2012
ISSN/ISBN: 1001-5515 PMID: 23469550 Document Number: 660981
In many cases, extraction and visualization of blood vessels in 3D magnetic resonance angiography (MRA) images are important in clinical diagnosis and surgery planning. Thus, this paper proposes a novel method to reconstruct high-accuracy outer surface of blood vessels from the 3D MRA. With the method, we first detect such local regions that contain blood structures from 3D image by using a boundary tracking technique. Second, in different local regions, different optimal isosurface patches are computed to adaptively represent outer surface of the contained blood vessels. Finally, all computed isosurface patches form a high-accuracy surface model for outer surface of the whole blood vessel structure are obtained. Error analysis and experimental results illustrate the effectiveness of the proposed method.