Shamoun Dany K, Norton Ian D, Levy Michael J, Vazquez-Sequeiros Enrique, Wiersema Maurits J
Developmental Endoscopy Unit, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota 55905, USA.
Gastrointest Endosc. 2002 Sep;56(3):430-5. doi: 10.1016/s0016-5107(02)70056-4.
Existing EUS catheter probes have limited depth of penetration and lack color flow and Doppler capabilities. This study prospectively assessed the feasibility and safety of using a phased vector array US catheter in the human GI tract.
Eleven patients underwent EUS with a steerable 9F phased vector array catheter. Images obtained with the catheter were compared with standard EUS images.
The GI wall layers were equally well imaged with the catheter compared with standard echoendoscopes in 90% of the cases. Images of the liver, spleen, pancreatic parenchyma, and pancreatic duct were of equal quality and resolution with both techniques in the majority of patients. Some deeper structures and blood vessels were better visualized with the catheter. No complications were encountered.
The steerable phased vector array US catheter is a safe device when used in the GI tract and offers images comparable with those obtained with a dedicated echoendoscope. Further studies are needed to determine the accuracy of tumor staging and clinical utility of this device.
现有的超声内镜导管探头穿透深度有限，且缺乏彩色血流和多普勒功能。本研究前瞻性评估了在人体胃肠道使用相控阵超声导管的可行性和安全性。
11例患者接受了可操控的9F相控阵导管超声内镜检查。将导管获得的图像与标准超声内镜图像进行比较。
在90%的病例中，与标准超声内镜相比，导管对胃肠道壁各层的成像效果相同。在大多数患者中，两种技术对肝脏、脾脏、胰腺实质和胰管的成像质量和分辨率相当。导管能更好地显示一些更深层的结构和血管。未出现并发症。
可操控相控阵超声导管用于胃肠道时是一种安全的设备，其提供的图像与专用超声内镜获得的图像相当。需要进一步研究以确定该设备肿瘤分期的准确性和临床应用价值。
