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Gastric Adenocarcinoma with Thymic Metastasis after Curative Resection: A Case Report
Tomoyuki Matsunaga,Hiroaki Saito,Kozo Miyatani,Seigo Takaya,Yoji Fukumoto,Tomohiro Osaki,Masahide Ikeguchi 대한위암학회 2014 Journal of gastric cancer Vol.14 No.3
The peritoneum is the most frequent site of recurrence for gastric cancer after gastrectomy, followed by the liver and lymph nodes. Incontrast, metastasis to the thymus is rare. Annual surveillance with computed tomography was performed on a 67-year-old man whopreviously underwent a distal gastrectomy and D2 lymph node dissection for gastric cancer at Tottori University. Five years after theinitial operation, an anterior mediastinal tumor was detected by computed tomography. The patient underwent video-assisted thoracicsurgery to remove the tumor. Histopathology revealed adenocarcinoma cells similar to those of the gastric cancer resected 5 years previously. Thymic metastasis was considered likely based on the location of the tumor. The recognition that gastric cancer can metastasizeto unusual anatomic locations, such as the thymus, can facilitate an accurate, prompt diagnosis and appropriate treatment.
Gastric Adenocarcinoma with Thymic Metastasis after Curative Resection: A Case Report
Matsunaga, Tomoyuki,Saito, Hiroaki,Miyatani, Kozo,Takaya, Seigo,Fukumoto, Yoji,Osaki, Tomohiro,Ikeguchi, Masahide The Korean Gastric Cancer Association 2014 Journal of gastric cancer Vol.14 No.3
The peritoneum is the most frequent site of recurrence for gastric cancer after gastrectomy, followed by the liver and lymph nodes. In contrast, metastasis to the thymus is rare. Annual surveillance with computed tomography was performed on a 67-year-old man who previously underwent a distal gastrectomy and D2 lymph node dissection for gastric cancer at Tottori University. Five years after the initial operation, an anterior mediastinal tumor was detected by computed tomography. The patient underwent video-assisted thoracic surgery to remove the tumor. Histopathology revealed adenocarcinoma cells similar to those of the gastric cancer resected 5 years previously. Thymic metastasis was considered likely based on the location of the tumor. The recognition that gastric cancer can metastasize to unusual anatomic locations, such as the thymus, can facilitate an accurate, prompt diagnosis and appropriate treatment.
Current Sensor based Non-intrusive Appliance Recognition for Intelligent Outlet
Takeshi Saitoh,Yuuki Aota,Tomoyuki Osaki,Ryosuke Konishi,Kazunori Sugahara 대한전자공학회 2008 ITC-CSCC :International Technical Conference on Ci Vol.2008 No.7
This paper presents the current sensor based nonintrusive appliance recognition method for intelligent outlet. Our system has two main functions; one is the remote control function of power supply through the Internet. The other is monitoring function observe the state of appliance. In this paper, the monitor function is especially focused. To recognize the state of appliance, we extract nine features based on measured current signal. In the experiment, we gathered a number of signals with various appliances, and found that three features Ipeak, Iavg, and Irms yield valid recognition results of 81.3%, 84.0%, and 87.4% for classifying the state of appliance into three categories.
Monocular Vision based Indoor Mobile Robot
Naoya Tada,Keisuke Murata,Takeshi Saitoh,Tomoyuki Osaki,Ryosuke Konishi 대한전자공학회 2008 ITC-CSCC :International Technical Conference on Ci Vol.2008 No.7
This paper presents the indoor mobile robot that moves automatically without needing environment information beforehand while recognizing the frontal surrounding environment with only one general camera. Based on the frontal image, the robot detects two boundary lines, some obstacle regions, and a moving direction. When the obstacle is detected, the avoidance or stop movement is worked according to the size and the position of the obstacle, otherwise the robot moves at the center of the corridor. We developed two wheelchair based mobile robots, and carried out moving experiments. It was possible to pass each other without colliding by working the avoidance movement in face-to-face movement in the coexistence environment.
Voice Activated Wheelchair with Collision Avoidance Using Sensor Information
Akira Murai,Masaharu Mizuguchi,Masato Nishimori,Takeshi Saitoh,Tomoyuki Osaki,Ryosuke Konishi 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
This paper develops a functional voice activated wheelchair. Various interfaces to control powered wheelchair are proposed. Since the voice is the most natural communication ways for person, our study pays attention to speech recognition. The user controls the wheelchair by the interactive operation. The wheelchair does not act based on false speech recognition. However, there is a problem that is the wheelchair collides in the wall and obstacle by delaying the voice command. Then, our system applies the collision avoidance function CAF by which wheelchair avoids the wall or obstacle without voice command by using the informatio of two kinds of sensor. CAF assists the user to control the wheelchair without colliding in the wall or obstacle. The effectiveness of our system was confirmed through the running experiment.