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Proceedings Paper

Evaluation of intracranial aneurysms with CT angiography: current status and future direction
Author(s): Yutaka Sato; William Sickels; Jerome Quets; Daniel Crosby; Shereen Chang; Janice Cook-Granroth; Eric A. Hoffman
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Paper Abstract

Purpose: To develop a valid, reliable and accurate system of measurement of intracranial aneurysm geometry using volumetric data obtained by CT angiography. Materials and methods: A simple model of lateral saccular aneurysm was created. Three models were prepared with different size of aneurysm sac and neck. Volumetric data was acquired using a Toshiba Xpress SX helical scanner. Geometry of an aneurysm model obtained by workstation linked to the scanner applying volume rendering display and dedicated UNIX based computer applying MPR based method. These results were compared with actual caliper measurements of the model. A clinical case of lateral aneurysm arising from the supraclinoid internal carotid artery was also studied. Results: Both the volume rendered image based method and MPR based method provided accurate geometric information of an aneurysm sac and its neck. Conclusions: Volume rendering technique requires editing by a well-informed operator and subjective, while the MPR based method is more objective and better suited for quantitative analysis. Using these mutually complimentary tools, critical geometric information of an aneurysm can be extracted from volumetric data provided by CTA.

Paper Details

Date Published: 9 May 1997
PDF: 10 pages
Proc. SPIE 3033, Medical Imaging 1997: Physiology and Function from Multidimensional Images, (9 May 1997); doi: 10.1117/12.274051
Show Author Affiliations
Yutaka Sato, Univ. of Iowa College of Medicine (United States)
William Sickels, Univ. of Iowa (United States)
Jerome Quets, Univ. of Iowa (United States)
Daniel Crosby, Univ. of Iowa (United States)
Shereen Chang, Univ. of Iowa (United States)
Janice Cook-Granroth, Univ. of Iowa (United States)
Eric A. Hoffman, Univ. of Iowa (United States)

Published in SPIE Proceedings Vol. 3033:
Medical Imaging 1997: Physiology and Function from Multidimensional Images
Eric A. Hoffman, Editor(s)

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