Seo Satoru, Hamaguchi Yuhei, Okuda Yukihiro, Arimitsu Tatsuki, Babazono Yutaka, Tanaka Junya, Sugimoto Hidemitsu, Takimoto Yukinobu, Hirai Yasushi, Ueda Shuzo, Ota Toyotsugu, Fujimoto Yasuhiro, Oike Fumitaka, Mitsuyosh Akira
Hepatogastroenterology. 2013 Oct;60(127):1627-32.
BACKGROUND/AIMS: We investigated the efficacy of endoscope guided transabdominal ultrasonography (EGTUS) for the evaluating the depth of colorectal cancer invasion.
The subjects were 52 patients with colon cancer and 30 patients with rectal cancer who underwent transabdominal US and curative surgery. During endoscopy, we applied transabdominal US by filling the area around the tumor with de-gassed water. The accuracy of depth invasion assessment using EGTUS was compared with that using endoscopic, computed tomography (CT), surgical or histological findings.
The tumor detection rate was 75.6% (62/82), 88.5% (46/52) for colon cancer and 53.3% (16/30) for rectal cancer. The diagnostic accuracies of EGTUS, endoscopic, CT and surgical findings were 87.1% (54/62), 73.2% (60/82), 66.7% (46/69), 65.9% (54/82), respectively. The diagnostic accuracy of EGTUS was 100% (2/2), 66.7% (4/6), and 90.0% (44/49) for T1, T2 and T3 cancer, respectively.
The results suggest that EGTUS is useful for evaluating preoperative T staging of colorectal cancer.
背景/目的：我们研究了内镜引导下经腹超声检查（EGTUS）在评估结直肠癌浸润深度方面的疗效。
研究对象为52例结肠癌患者和30例直肠癌患者，这些患者均接受了经腹超声检查及根治性手术。在内镜检查过程中，我们通过向肿瘤周围区域注入脱气水来进行经腹超声检查。将使用EGTUS评估浸润深度的准确性与使用内镜、计算机断层扫描（CT）、手术或组织学检查结果评估的准确性进行比较。
肿瘤检出率为75.6%（62/82），其中结肠癌的检出率为88.5%（46/52），直肠癌的检出率为53.3%（16/30）。EGTUS、内镜、CT及手术检查结果的诊断准确率分别为87.1%（54/62）、73.2%（60/82）、66.7%（46/69）、65.9%（54/82）。对于T1、T2和T3期癌症，EGTUS的诊断准确率分别为100%（2/2）、66.7%（4/6）和90.0%（44/49）。
结果表明，EGTUS有助于评估结直肠癌的术前T分期。
