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Halima Begum,Masayuk iOkamoto,Shogo Tanaka 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
We previously proposed a method to measure the diameter of the deformed reinforcing bars in concrete structures nondestructively using an electromanetic wave radar. The method estimated the periodicity of the knots of the inspected bar and utilized the standard relationship between the knot’s pitch and the diamete of the barto measure the diameter indirectly. The effectiveness of the method was verified using test specimens where the bars were placed parallel to each other. However, inpractical case, where other rein forcing bars cross the inspected bar perpendicularly, the stronger reflections from the cross bars influence the reflection from the inspected bar. The paper thus proposes a general method which eliminates such unwanted influences from the cross bars and measures the diameter accurately even in prctical environment.
Daisuke Ide,Tomohiko Richard Ohya,Mitsuaki Ishioka,Yuri Enomoto,Eisuke Nakao,Yuki Mitsuyoshi,Junki Tokura,Keigo Suzuki,Seiichi Yakabi,Chihiro Yasue,Akiko Chino,Masahiro Igarashi,Akio Nakashima,Masayuk 대한소화기내시경학회 2022 Clinical Endoscopy Vol.55 No.5
Background/Aims: Endoscopic submucosal dissection (ESD) for residual or recurrent colorectal lesions after incomplete resection is challenging because of severe fibrosis. This study aimed to compare the efficacy of the pocket-creation method (PCM) with a traction device (TD) with that of conventional ESD for residual or recurrent colorectal lesions. Methods: We retrospectively studied 72 patients with residual or recurrent colorectal lesions resected using ESD. Overall, 31 and 41 le- sions were resected using PCM with TD and conventional ESD methods, respectively. We compared patient background and treatment outcomes between the PCM with TD and conventional ESD groups, respectively. The primary endpoints were en bloc resection and R0 resection rates. The secondary endpoints were the dissection speed and incidence of adverse events. Results: En bloc resection was feasible in all cases with PCM with TD, but failed in 22% of cases of conventional ESD. The R0 resection rates for PCM with TD and conventional ESD were 97% and 66%, respectively. Dissection was significantly faster in the PCM with TD group (13.0 vs. 7.9 mm2/min). Perforation and postoperative bleeding were observed in one patient in each group. Conclusions: PCM with TD is an effective method for treating residual or recurrent colorectal lesions after incomplete resection.