PMID: 16532946Mar 15, 2006Paper

Computerized detection of intracranial aneurysms for three-dimensional MR angiography: feature extraction of small protrusions based on a shape-based difference image technique

Medical Physics
Hidetaka ArimuraKunio Doi

Abstract

We have improved a computerized scheme for the detection of intracranial aneurysms for three-dimensional (3-D) magnetic resonance angiography (MRA) by the use of image features of small protrusions extracted based on a shape-based difference image (SBDI) technique. Initial candidates were identified by use of a multiple gray-level thresholding technique in dot enhanced images, and by finding short branches in skeleton images. Image features related to aneurysms were determined based on candidate regions segmented by use of a region growing technique. For extracting additional features on small protrusions or small aneurysms, we have developed an SBDI technique, which was based on the shape-based difference between an original segmented vessel and a vessel with suppressed local change in thickness. The SBDI technique was useful for obtaining local changes in vessel thickness, i.e., SBD regions, which could be small aneurysms in the case of true positives, but thin or very small regions in the case of false positives. Many false positives were removed by means of rule-based schemes and linear discriminant analysis on various 3-D localized image features, including SBDI features. We tested the computerized scheme on 53 cases with ...Continue Reading

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Citations

Apr 7, 2012·International Journal of Biomedical Imaging·Kenji Suzuki
Nov 22, 2013·Nihon Hoshasen Gijutsu Gakkai zasshi·Daisuke Fukuoka
Mar 4, 2008·Nihon Hoshasen Gijutsu Gakkai zasshi·Yoshikazu Uchiyama
Sep 5, 2014·Medical Physics·Clemens M HentschkeKlaus D Tönnies
Jun 14, 2014·AJNR. American Journal of Neuroradiology·I L Štepán-BuksakowskaB J Erickson
Nov 24, 2007·Academic Radiology·Yoshikazu UchiyamaHiroshi Fujita
May 8, 2014·IEEE Reviews in Biomedical Engineering·Vidya SudarshanDhanjoo N Ghista
Jun 5, 2014·BioMed Research International·Christos M MichailIoannis S Kandarakis
Sep 10, 2014·The Neuroradiology Journal·Wieslaw L NowinskiDaniel F Hanley
Jul 10, 2017·Radiological Physics and Technology·Kenji Suzuki
Mar 16, 2021·Interventional Neuroradiology : Journal of Peritherapeutic Neuroradiology, Surgical Procedures and Related Neurosciences·Xinke LiuYouxiang Li

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