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英文誌(2004-)

Journal of Medical Ultrasonics

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1987 - Vol.14

Vol.14 No.05

Original Article(原著)

(0407 - 0418)

コンピュータグラフィクスによる頸動脈病変の三次元的診断法の開発

Three Dimensional Analysis of the Structure of Carotid Arteries by Computer Graphics

鈴木 直樹1, 岡村 哲夫1, 伊藤 幹生4, 辻本 文雄2, 多田 信平2, 宝意 幸治3, 持尾 聡一郎3, 磯貝 行秀3

Naoki SUZUKI1, Tetsuo OKAMURA1, Mikio ITO4, Fumio TSUJIMOTO2, Sinpei TADA2, Kouji HOUI3, Souichirou MOCHIO3, Yukihide ISOGAI3

1東京慈恵会医科大学医用エンジニアリング研究室, 2東京慈恵会医科大学放射線科, 3東京慈恵会医科大学第三内科, 4日本光学工業光機設計部

1ME Laboratory, Tokyo Jikei University School of Medicine, 2Department of Radiology, Tokyo Jikei University School of Medicine, 3Department of Third Internal Medicine, Tokyo Jikei University School of Medicine, 4Nippon Kogaku K. K.

キーワード : 3D Image, Carotid artery, Ultrasonography, Plaque, Computer graphics

A noninvasive measurement technique producing three dimensional (3D) images of carotid artery bifurcation has developed. The method for this purpose are consisted of two parts. The first part is a high resolutional 2 dimensional (2D) echography that are supplying series of transverse images of aimed vessels from the subject. These 2D images are send to the second part those are composed of computer graphics system. Shapes of vessels are digitalized and translated to values in 3D coordinates with distance data among each images.
By this method we constructed 3D images of common carotid artery (CCA), internal carotid artery (ICA), external carotid artery (ECA) and skin surface. Constructed images are available to rotate or move in 3D axis according the purpose of observation. And it is also possible to dissect the vessel model in optional sectioning plane.
It was revealed that this method was very useful to observe the structure and location of plaques in the vessel as well as the outer shape of the bifurcation.