Funolamental Study on Image Formation of Digital Panoramic Tomography

数字全景断层扫描成像的缆线研究

• 批准号: 02670903
• 负责人: TOYOFUKU Fukai
• 金额: $ 1.41万
• 依托单位: Kyushu University
• 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 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02670903/
• 关键词: Digital Panoramic radiography; CT; Pantomography; Image Formation; Image Layer Thickness; 画像再構成; イメ-ジインテンシファイア; フレ-ムメモリ

The image formation theories of rotational panoramic radiography and computed tomography are generally belived to have no connection with each other since they have so far been developed independently. However, the similar movements of the X-ray source and detector system (film) around a patient strongly suggest the close relationship between the two imaging systems. The purpose of the present study is to develop a new method which can unify rotational panoramic radiography and computed tomography using the CT reconstruction algorithm from incomplete projections.A phantom on a rotating table was projected onto a two, dimensional I. I. + TV detector system by a cone-shaped beam of x-rays from the source. A total of 120 projection images covering 1800 were acquired and stored on a hard disk of the computer system. Only a subset of all the projection data were backprojected onto curved surfaces. It was shown that slit scanography, rotational panoramic radiography, and computed tomography transfer continuously to each other. The new algorithm seems to be applicable to digital panoramic tomography which will appear in the future.

旋转全景摄影和计算机断层摄影的成像理论迄今为止都是各自独立发展的，一般认为它们之间没有联系。然而，X射线源和探测器系统（胶片）在患者周围的类似运动强烈表明这两个成像系统之间的密切关系。本文研究了一种将旋转全景摄影与CT重建算法结合起来的新方法，该方法利用CT重建算法将旋转工作台上的体模投影到二维I. I. + 电视探测器系统由一束锥形的X射线源发出。采集了覆盖1800的总共120个投影图像，并将其存储在计算机系统的硬盘上。只有一个子集的所有投影数据被反投影到曲面上。结果表明，狭缝扫描，旋转全景摄影，和计算机断层扫描连续转移到对方。新算法适用于未来的数字全景层析成像。

项目成果

神田 重信,田中 武昌,豊福 不可依: "顎顔面領域における3DーCTの臨床応用" 映像情報(MEDICAL). 22. 1232-1235 (1990)

Shigenobu Kanda、Takemasa Tanaka、Yui Toyofuku：“3D-CT 在颌面部区域的临床应用”医学。 22. 1232-1235 (1990)

豊福 不可依,田中 武昌,神田 重信: "I.I.+TV系を用いたX線CTによる歯・顎骨のパントモ像" 歯科ジャ-ナル. 32(3). 285-296 (1990)

Toyofuku Ikei、Tanaka Takemasa、Kanda Shigenobu：“使用 I.I.+TV 系统通过 X 射线 CT 获得牙齿和颌骨的 Pantomo 图像”《牙科杂志》32(3) (1990)。

F. Toyofuku, T. Tanaka and S. Kanda: "Panoramic images of Teeth and Jaw Bones with Fuluorosciopic CT" Shi-ka Journal. 32 (3). 285-296 (1990)

F. Toyofuku、T. Tanaka 和 S. Kanda：“利用 Fuluorosciopic CT 获得牙齿和颌骨的全景图像”Shi-ka Journal。

S. Kanda, T. Tanaka and F. Toyofuku: "Clinical Application of 3-D CT in the Maxillofacial Region" Eizou-Jouhou (Medical). 22. 1232-1235 (1990)

S. Kanda、T. Tanaka 和 F. Toyofuku：“3-D CT 在颌面部区域的临床应用”Eizou-Jouhou（医学）。

S. Kanda, T. Tanaka and F. Toyofuku: "Development of a Fluoroscopic CT (FCT) and Construction of a Prototype System" Inner Vision. 6 (7). 47-48 (1991)

S. Kanda、T. Tanaka 和 F. Toyofuku：“荧光 CT (FCT) 的开发和原型系统的构建”Inner Vision。