Silverstein F E, Martin R W, Kimmey M B, Jiranek G C, Franklin D W, Proctor A
Department of Medicine, University of Washington, Seattle.
Gastroenterology. 1989 Apr;96(4):1058-62. doi: 10.1016/0016-5085(89)91623-5.
We developed an endoscopic echo probe that can be passed via the biopsy channel of a flexible fiberoptic or video endoscope with a 3.5-mm channel. The probe moves along the gastrointestinal wall under direct endoscopic vision. The translational scanning action is sensed by a position potentiometer and combines with the ultrasonic B-mode echoes to produce a cross-sectional image of the wall. The system uses an ultrasound frequency of 20 MHz to produce high-resolution images. The device was used to image canine gastrointestinal tissue in vitro and in vivo during endoscopy. Ultrasound images of the gut wall correlate with histologic structure. This probe overcomes some of the problems associated with the combined ultrasound endoscopes now in use. Use of the probe with video endoscopy allows the endoscopic and ultrasound images to be displayed side by side, simplifying coordination of application of the two techniques.
我们研发了一种内镜超声探头，它可以通过通道直径为3.5毫米的柔性纤维或视频内窥镜的活检通道插入。该探头在内镜直视下沿着胃肠道壁移动。平移扫描动作由位置电位器感应，并与超声B型回声相结合，以生成胃肠道壁的横截面图像。该系统使用20兆赫的超声频率来生成高分辨率图像。该设备用于在内镜检查期间对犬类胃肠道组织进行体外和体内成像。肠壁的超声图像与组织结构相关。该探头克服了目前使用的组合式超声内窥镜所存在的一些问题。将该探头与视频内窥镜配合使用，可使内镜图像和超声图像并排显示，简化了两种技术应用的协调。
