3-Dimensional CT image construction & its volume calculation of the maxillo-facial lesions

3 维 CT 图像构建

• 批准号: 02670914
• 负责人: OSANAI Katushi
• 金额: $ 1.47万
• 依托单位: MATSUMOTO DENTAL COLLEGE
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1990
• 资助国家: 日本
• 起止时间: 1990 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02670914/
• 关键词: X-CT; 3 D image; Maxillo-facial lesion

Since 5 years ago, we have been constructing 3 D images maxillo-facial cystic lesions , using the 3 D image (3 dimensional image) software , included in the X-CT system.In 1990, we improved a supporting apparatus for the scanning of the maxillo-facial lesions, and researched the factors concerning 3 D reconstruction.As the result, we had learned how the locations and thickness of scanning severally concern to the volume of constructed 3 D images, and grasped the optimum CT value, which displays a exact volume of subject.In 1991, a new function, named "cutting", was added to our software, we have become possible to cut off the useless part' of 3 D images.With this function, we succeeded in some trial simulations of operation, on the 3 D images.In 1992, we tried a new method of mandiblar outlined 3 D images, by means of choicing fairly limited CT value. Completed images (temporally named outline image) was displayed with that of cystic lesions in a same frame ; and thus the location, the shape, the size, and the direction of lesions in the mandible became easier to understand, in the same time the volume of lesions are calculated.Volume of outline images were very scanty, and not effective to volume calculation of lesions. These knowledges were applied to clical cases.

自5年前，我们一直在构建三维图像颌面部囊性病变，使用三维图像1990年，我们改进了颌面部病变扫描的支撑装置，并对影响三维重建的因素进行了研究，结果表明：我们了解了扫描的位置和厚度与所构建的三维图像的体积的关系，掌握了最佳的CT值，从而显示了一个精确的被检体的体积。1991年，我们的软件增加了一个新的功能，称为“切割”，1992年，我们尝试了一种新的下颌骨轮廓三维图像的方法，通过选择相当有限的CT值，使三维图像的“无用部分”被切除成为可能，利用这一功能，我们成功地在三维图像上进行了一些模拟手术的试验。完整图像（暂称轮廓图像）与囊性病变图像同帧显示，使病变的位置、形状、大小、方向更容易理解，同时可计算出病变体积，但轮廓图像的体积很小，对病变体积计算不起作用。这些知识已应用于临床病例。

项目成果

長内 剛: "CT-3D画像による病巣体積測定の試み(学会抄録)" 歯科放射線. 32. 161-161 (1992)

Tsuyoshi Osanai：“尝试使用 CT-3D 图像测量病变体积（会议摘要）”牙科放射学。 32. 161-161 (1992)

Tsunekatsu FUKAZAWA: "The Three Dimensional Reconstruction of CT Images for the Maxillo-Facial Lesions" THE MATSUMOTO SHIGAKU. 17. 215-221 (1991)

Tsunekatsu FUKAZAWA：“上颌面部病变 CT 图像的三维重建”THE MATSUMOTO SHIGAKU。

山岸 眞弓美: "線維性骨異形成症の機器分析による観察" 日本口腔外科学会雑誌. 36. 1896-1902 (1990)

Mayumi Yamagishi：“通过仪器分析观察纤维性骨发育不良”日本口腔颌面外科学会杂志 36。1896-1902（1990）

丸山 清ほか: "顎口腔領域画像診断ー顎下腺突のCT画像診断ー" 松本歯学. 17. 101-101 (1991)

Kiyoshi Maruyama 等：“口下颌区域的图像诊断 - 下颌下腺过程的 CT 图像诊断”松本牙科科学 17. 101-101 (1991)。