Sumiyama Kazuki, Suzuki Naoki, Kakutani Hiroshi, Hino Shoryoku, Tajiri Hisao, Suzuki Hiroaki, Aoki Teruaki
Department of Surgery and Institute for High Dimensional Medical Imaging, Jikei University School of Medicine, Minatoku, Tokyo, Japan.
Gastrointest Endosc. 2002 May;55(6):723-8. doi: 10.1067/mge.2002.123276.
Three-dimensional EUS (3D-EUS) technology has facilitated spatial interpretation of US images. However, acquisition of consecutive US scans is time consuming and difficult. A new 3D-EUS system was developed that negates this problem by allowing rapid image renewal and the efficient production of consecutive US scans.
Three-dimensional images were reconstructed from a series of 2-dimensional images corresponding to the rotation angle of the echoendoscope as measured with an electromagnetic tracking system. To evaluate the technical feasibility of the system, 3-dimensional images of splenic veins in 2 patients and an esophageal submucosal tumor in a third patient were generated.
The 3D-EUS system acquired image data at a rate of 30 frames per second and allowed visualization of these data in real-time. The area of interest was clearly and rapidly portrayed in all 3 patients.
This study demonstrates the efficiency of the new 3D-EUS system described in this report. Further development of this novel 3D-EUS system may lead to new applications of this technology.
三维超声内镜（3D-EUS）技术有助于对超声图像进行空间解读。然而，获取连续的超声扫描图像既耗时又困难。一种新的3D-EUS系统被开发出来，它通过实现快速图像更新和高效生成连续超声扫描图像来解决这一问题。
三维图像由一系列二维图像重建而成，这些二维图像对应于通过电磁跟踪系统测量的超声内镜旋转角度。为评估该系统的技术可行性，生成了2例患者脾静脉和第3例患者食管黏膜下肿瘤的三维图像。
3D-EUS系统以每秒30帧的速率获取图像数据，并能实时显示这些数据。所有3例患者的感兴趣区域均清晰、快速地呈现出来。
本研究证明了本报告中所述新3D-EUS系统的有效性。这种新型3D-EUS系统的进一步开发可能会带来该技术的新应用。
