Joon Seok Lim MD, Presenter: Nothing to Disclose

Myeong-Jin Kim MD, PhD, Abstract Co-Author: Nothing to Disclose

Woo Jin Hyung MD, Abstract Co-Author: Nothing to Disclose

Ki Whang Kim MD, Abstract Co-Author: Nothing to Disclose

To determine the clinical feasibility of laparoscopic ultrasound in localization of gastric submucosal tumor for laparoscopic tumor resection.

From March 2003 to March 2005, laparoscopic gastric submucosal tumor resections were performed in 39 consecutive patients. The growth pattern, location and size of lesions were prospectively evaluated with preoperative imaging studies (endoscopy, endoscopic ultrasound, and CT). Lesions were considered to be suitable for laparoscopic ultrasound (LUS) guided surgery if they were intraluminal or mural lesion on preoperative imaging study, because they are not localized only by laparoscopic finding. Finally, fifteen patients were enrolled in our study. The LUS examinations were performed at the presumed site by preoperative imaging evaluation for tumor localization during laparoscopic surgery. LUS procedure times from insertion of LUS probe to detection of a lesion were recorded.

Enrolled 15 submucosal tumors were located in the upper (n=9), middle (n=4) and lower part (n=2) of stomach. The average size of the tumor was 27 mm (range, 15-48 mm). All submucosal masses (n=15) were successfully detected and localized by the LUS. The mean procedure time was 105 seconds (range, 15-330 seconds). LUS guided wedge resections were performed by direct (n=9) or transgastric approach (n=5). Total gastrectomy was done in one case because the lesion was just proximal to gastroesophageal junction. Accurate localizations were confirmed during surgery in all cases and all submucosal lesions were successfully removed.

Intraoperative LUS was an effective method for tumor localization for laparoscopic assisted gastric submucosal tumor resection.

Lim, J, Kim, M, Hyung, W, Kim, K, Laparoscopic Ultrasound for Intraoperative Localization of Gastric Submucosal Tumor.  Radiological Society of North America 2005 Scientific Assembly and Annual Meeting, November 27 - December 2, 2005 ,Chicago IL. http://archive.rsna.org/2005/4416464.html