Development of three-dimensional high frequency ultrasound diagnostic apparatus

三维高频超声诊断仪的研制

• 批准号: 01870109
• 负责人: MIKI Yoshiharu
• 金额: $ 11.07万
• 依托单位: Ehime University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-01870109/
• 关键词: High frequency ultrasound; Three-dimensional image; Skin histopathology; 三次元像

To supplement the in-vivo ultrasonic histopathology of the skin, a new system was-developed. The system consisted of a new 3OMHz real-time, linear array ultrasound transducer, made by Omron, Co, Kyoto, Japan, mounted on a position sensor arm, which was moved horizontally for a distance of 3 to 30mm at the speed of 10mm per second within a water bag placed over the skin surface. Serial, vertical B-scan images were stored and A/D converted by a personal computer, PC 9801RA, NEC, Tokyo, Japan, with 32bit CPU, 12.6MB memory, two 40MB HDs and two IMB FDs. The A/D converted images were then processed into three-dimensional (3-D) ones. The images were stored either in HDs or FDs. The transducer scans 13.4mm skin surface to the depth of 20mm with 192 elements ai the practical lateral resolution of 0.13mm at the frame scan. time of 1/30 second. From each B-scan image, a 7.5x7.5mm square portion. consisting of 256x256 pixels were selected. A total of 30 serial B-scan images within 7.5mm length were interpolated into 128x128x117 voxels at 256 gray levels. A 3-D image with or without a calibrating scale was then reconstructed by means of the computer graphics. Approximately 15 minutes. were required to reconstruct a 3-D image by the system.

为了补充皮肤的体内超声组织病理学，我们开发了一种新的系统。该系统由一个新的3OMHz实时线性阵列超声换能器组成，由日本京都欧姆龙公司制造，安装在位置传感器臂上，在放置在皮肤表面的水袋内以每秒10毫米的速度水平移动3到30毫米的距离。串行，垂直b扫描图像存储和A/D转换的个人电脑，PC 9801RA， NEC，东京，日本，32位CPU， 12.6MB内存，2个40MB硬盘和2个IMB fd。然后将A/D转换后的图像处理成三维图像。图像存储在hd或fd中。换能器扫描13.4mm皮肤表面至20mm深度，192个元素，在框架扫描时实际横向分辨率为0.13mm。时间为1/30秒。从每个b扫描图像，一个7.5x7.5mm的正方形部分。选择由256x256像素组成。将30张长度为7.5mm的连续b扫描图像插值为128 × 128 × 117体素，灰度为256级。然后用计算机图形学的方法重建了带有或不带有标定刻度的三维图像。大约15分钟。被系统要求重建一个三维图像。

项目成果

福本 晃: "サブ・ギガ・バンド超音波生体計測" 病態生理. 9. 131-136 (1990)

Akira Fukumoto：“亚千兆频带超声生物测量”病理生理学 9. 131-136 (1990)。

Murakami, S and Miki, Y: "Human skin histology using high-resolution echography" J Clin Ultrasound. 17. 77-82 (1989)

Murakami, S 和 Miki, Y：“使用高分辨率回波描记法进行人体皮肤组织学”J Clin Ultrasound。

Miki, Y, Murakami, S and Miyauchi, S: "An approach to non-invasive histopathology of the skin" Skin Cancer. 4. 292-296 (1989)

Miki, Y、Murakami, S 和 Miyauchi, S：“皮肤非侵入性组织病理学方法”皮肤癌。

三木 吉治: "超音波皮膚断面像" 日本超音波医学会講演論文集. 33-34 (1990)

Yoshiharu Miki：“超声皮肤横截面图像”日本超声医学会会议记录 33-34 (1990)。

Fukumoto, A, Yano, T and Miki, Y: "Vital measurements using sub-giga band ultrasound" Byoutai-Seiri. 9. 131-136 (1990)

Fukumoto, A、Yano, T 和 Miki, Y：“使用亚千兆频段超声波进行生命测量”Byoutai-Seiri。