Application of 4D imaging and compter graphics in the region of forensic pathology

4D成像和计算机图形学在法医病理学领域的应用

• 批准号: 09557042
• 负责人: TAKATSU Akihiro
• 金额: $ 3.97万
• 依托单位: Jikei University School of Medicine
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09557042/
• 关键词: 3D imaging; computer graphics; forensic pathology; simulation; stabb wound; gun shot wound; コンピュータグラフィックス; シミュレーション; コンピュータグラフィクス; 法医病理; 刺創; 射創; 画像解析; 3次元画像; 法医解剖; 突然死; 画像計測

Recent advances in computer technology have allowed for quantitative analysis of internal human anatomical structures in three dimensional (3D) or four dimensional (4D) space. In order to perform various forensic medical technques such as injury inspection or non destructive measurements of body parts 3D and 4D imaging were applied. In addition, this approach could estimate the cause of death using 3D and 4D simulation.In the case of bullet wound analysis, we utilized this simulation system to accurately determine a bullet's pathway. Normally X-ray photography or observations with the naked eye do not provide the spatial accuracy available from 3D structural body data. Therefore, after some experimental trials, we developed a 3D imaging method to identify the pathway of a bullet that had penetrated an actual brain. In the 3D brain image reconstructed from a serial X-ray CT data set, the path of the bullet and the distribution of bone fractures in the brain were cleary obsered. By ident … More ifying CT values, metal bullet fragments that adhered to fractured bone could also be visualized.3D imaging was also appied to stab wound analysis. Identification of the weapon used to inflict a penetrating wound can be difficult from the results of physical autopsy alone. Therefore, we examined whether it was possible to visualize the location and size of penetrating wounds in body tissue with 3D imaging, and predict the type of weapon used. We createan experimental case to develop a visualization technique for this wound penetration analysis. As an experimental model, the livers of pigs were penetrated with various knives. Contrast media was injected into the wound entrance of each liver. Then, the liver was measured by CT as serial section images. Both the shape and the direction of the wound in the liver tissue were observed by rotating the 3D image on the body axis. Futhermore, vessels in the liver cut by the weapon were also visualized, because the contrast media entered the vessels from the opening at the wound. The condition of vessels severed by the weapon could indicate the cause of death and helped estimate the amount of bleeding.In order to perform a retrospective analysis of old cases or provide material for training and education we archived the image data of our research. Both the subject's morphological information and 3D and 4D images are stored on accessible digital data. The image database produced for our medicine research project will prove invaluable for the future of forensic medicine. Less

计算机技术的最新进展允许在三维 (3D) 或四维 (4D) 空间中对人体内部解剖结构进行定量分析。为了执行各种法医医学技术，例如损伤检查或身体部位的无损测量，应用了 3D 和 4D 成像。此外，该方法还可以使用 3D 和 4D 模拟来估计死亡原因。在枪伤分析中，我们利用该模拟系统来准确确定子弹的路径。通常，X 射线摄影或肉眼观察无法提供 3D 结构体数据的空间精度。因此，经过一些实验试验，我们开发了一种 3D 成像方法来识别子弹穿透真实大脑的路径。在根据连续X射线CT数据集重建的3D大脑图像中，可以清楚地观察到子弹的路径和大脑中骨折的分布。通过识别 CT 值，还可以可视化粘附在骨折骨头上的金属子弹碎片。3D 成像还应用于刺伤分析。仅凭尸检结果很难识别造成穿透伤的武器。因此，我们研究是否可以通过 3D 成像来可视化身体组织中穿透伤的位置和大小，并预测所使用的武器类型。我们创建了一个实验案例来开发用于伤口渗透分析的可视化技术。作为实验模型，用各种刀刺穿猪的肝脏。将造影剂注入每个肝脏的伤口入口。然后，通过CT测量肝脏作为连续切片图像。通过绕体轴旋转 3D 图像来观察肝组织伤口的形状和方向。此外，由于造影剂从​​伤口处的开口进入血管，因此还可以看到被武器切割的肝脏中的血管。被武器切断的血管状况可以表明死亡原因，并有助于估计出血量。为了对旧病例进行回顾性分析或为培训和教育提供材料，我们存档了研究的图像数据。受试者的形态信息以及 3D 和 4D 图像都存储在可访问的数字数据中。为我们的医学研究项目生成的图像数据库对于法医学的未来将具有无价的价值。较少的

项目成果

TAKATSU A., Suzuki N., Hattori A., Shigeta A.: "The concept of the digital morgue as a 3D database"Japanese Journal of Legal Medicine. 29-33 (1999)

TAKATSU A.、Suzuki N.、Hattori A.、Shigeta A.：“数字太平间作为 3D 数据库的概念”《日本法律医学杂志》。

Takatsu A, Suzuki N, Hattori A, Shigeta A: "The concept of digital morgue as a 3D database"Japanese Journal of Legal Medicine. 1・1. 29-33 (1999)

Takatsu A、Suzuki N、Hattori A、Shigeta A：“数字太平间作为 3D 数据库的概念”日本法律医学杂志 1・1（1999 年）。

NaokiSUZUKI: "Analysis of Penetrationg Wounds Using 3D Imaging" Proceedings of 6th Indo Paciflc Congress on Legal Medicine and Forensic Science. 6. 191-194 (1998)

NaokiSUZUKI：“使用 3D 成像分析穿透性伤口”第六届印度太平洋法律医学和法医学大会论文集。