Quantitative Analysis of Bone Destruction by an Intra-oral Fluoroscopic TV System

口腔内荧光电视系统对骨破坏的定量分析

• 批准号: 60480439
• 负责人: SHINODA Koji
• 金额: $ 3.58万
• 依托单位: Nihon University School of Dentistry
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-60480439/
• 关键词: グラスファイバーエンドスコープ; 照射野検出機構(磁気センサーシステムによる); 画像処理; 骨塩定量; サブトラクション; 顎関節

The dental X-ray TV system we have developed has the following components.1) X-ray tube for dental X-ray apparatus (50kVp,5mA) with an open-end cone, diameter:2.0cm, 2) Magnetic sensor for the relation of X-ray tube and detector, 3) Intra-oral fluoroscopic glassfiber optics endoscope, 4) SIT TV camera, 5) Frame-memory for image storage, 6) CRT monitor, 7) VTR, 8) Hewlett-Packard HP-85 microcomputer for image analysisThis system is designed to obtain an adequate TV image at a minimized radiation dose by employing a highly sensitive TV system.The quantitative analysis of bone mineral by this TV system is carried out by the following procedure.1) The value of luminosity corresponding to the weight of the bone mineral in the test piece in terms of hydroxy-apatite is obtained.2) A calibration function is determined on the basis of the TV image of the test piece, and a program is prepared for calculating the quantity of the bone mineral.3) The reliability of this system is confirmed by comparing the mineral quantity of a part of dry bone of a human mandible calculated from its TV image with the quantity of calcium in the same part determined by atomic absorption spectrophotometry.4) The value calculated from the X-ray TV image and the calcium quantity determined by the above method coincided, with errors ranging from 1.1 to 5.0 percent in the case of a bone specimen weighing 70mg or upwards.We showed objective evaluation of the healing condition after operation on two cases of folicullar cysts of the mandible in children.

我们开发的牙科X射线电视系统有以下组件：1）用于牙科X射线设备（50kVp，5mA）的X射线管，带开口锥体，直径：2.0cm，2）用于X射线管和探测器关系的磁传感器，3）口腔内透视玻璃纤维光学内窥镜，4）SIT电视摄像机，5）用于图像存储的帧存储器，6） CRT显示器，7) VTR，8)用于图像分析的惠普HP-85微型计算机该系统旨在通过采用高灵敏度电视系统以最小的辐射剂量获得足够的电视图像。通过该电视系统对骨矿物质的定量分析按以下步骤进行。1)与测试件中骨矿物质的重量相对应的光度值 2) 根据试件的电视图像确定校准函数，并编写计算骨矿物质量的程序。 3) 通过将电视图像计算出的人下颌骨部分干骨的矿物质量与原子吸收分光光度法测定的同一部分的钙量进行比较，证实了该系统的可靠性。 4) 值 根据X线电视图像计算的钙量与上述方法测定的钙量一致，骨标本重量70mg以上时，误差为1.1%～5.0%。我们对两例儿童下颌骨滤泡囊肿术后愈合情况进行了客观评价。

项目成果

ARAI,Y., OHGAME,Y., KAWASHIMA,K., SHINODA,K., et.al.: "Detecting System of the Central X-ray on Dental Radiography by using Magnetic Sensor" The Journal of Nihon University School of Dentistry.

ARAI,Y., OHGAME,Y., KAWASHIMA,K., SHINODA,K., et.al.：“使用磁传感器检测牙科放射线摄影中的中央 X 射线的系统” 日本大学牙科学院学报

SHINODA,K., ARAI,Y., OHKI,T., HASHIMOTO,K., et.al.: "Quantitative Analysis of Bone Destruction by an Intra-oral Fluoroscopic TV System ( in Japanese )" Dental Radiology.

SHINODA,K.、ARAI,Y.、OHKI,T.、HASHIMOTO,K. 等人：“口腔内荧光电视系统对骨破坏的定量分析（日语）”牙科放射学。

新井嘉則,大亀泰久,栗林系次,川嶋祥史,篠田宏司他: 歯科放射線. 27. (1987)

Yoshinori Arai、Yasuhisa Ogame、Keiji Kuribayashi、Yoshifumi Kawashima、Hiroshi Shinoda 等：牙科放射学。 (1987)

大亀泰久,新井嘉則,篠田宏司,他: 歯科放射線(第27回日本歯科放射線学会学術講演会抄録). 増刊号. 224 (1986)

Yasuhisa Ogame、Yoshinori Arai、Hiroshi Shinoda 等：牙科放射学（日本牙科放射学会第 27 届学术会议摘要）224（1986 年）。

OHGAME,Y., ARAI,Y., SHINODA,K., et.al.: "For better clinical application of the Dental X-ray TV System - A trial of the image detector by glass fiber optics - ( in Japanese )" Dental Radiology. 26. 224 (1986)

OHGAME,Y.、ARAI,Y.、SHINODA,K. 等人：“为了更好地临床应用牙科 X 射线电视系统 - 玻璃纤维光学图像检测器的试验 -（日语）”