A5043261884- Gastric Cancer Management and Outcomes
- Esophageal Cancer Research and Treatment
- Esophageal and GI Pathology
- Gastrointestinal Tumor Research and Treatment
- Gastrointestinal disorders and treatments
- Context-Aware Activity Recognition Systems
- Reinforcement Learning in Robotics
- Diabetes Management and Research
- Helicobacter pylori-related gastroenterology studies
- Data Stream Mining Techniques
- Innovative Human-Technology Interaction
- Machine Learning and Data Classification
- Mobile Crowdsensing and Crowdsourcing
- Anomaly Detection Techniques and Applications
- Anesthesia and Sedative Agents
- Metastasis and carcinoma case studies
- Digital Mental Health Interventions
- Colorectal Cancer Screening and Detection
- Adversarial Robustness in Machine Learning
- Diverticular Disease and Complications
- Gastroesophageal reflux and treatments
- Time Series Analysis and Forecasting
- Tracheal and airway disorders
- Lung Cancer Diagnosis and Treatment
- Receptor Mechanisms and Signaling
Sendai Medical Center
2013-2024
University of Bristol
2019-2023
Creative Research Enterprises (United States)
2016
Shizuoka University
1993
To assess the usefulness of thread-traction method (TT method) in esophageal endoscopic submucosal dissection (ESD).A total 40 lesions that were scheduled to be treated by ESD included study. The TT was used for 20 (group TT) and conventional C) after randomization. hook-knife all cases. In group TT, circumferential mucosal incision, a clip with thread attached oral edge lesion.ESD carried out Effective countertraction created method, it possible carry an efficient operation. Significant...
<b>Background and aims</b>: Mediastinal emphysema sometimes develops following esophageal endoscopic submucosal dissection (ESD) without perforation because the esophagus has no serosa. Carbon dioxide (CO<sub>2</sub>) insufflation during ESD may reduce incidence of mediastinal emphysema. The aim present study was to compare severity post-ESD in patients receiving CO<sub>2</sub> vs. standard air ESD. <b>Patients methods</b>: A total 27 who had undergone with between July 2009 March 2010 were...
Type 1 Diabetes (T1D) self-management requires hundreds of daily decisions. technologies that use machine learning have significant potential to simplify this process and provide better decision support, but often rely on cumbersome data logging cognitively demanding reflection collected data. We set out co-design identify opportunities for support diabetes in everyday settings. However, over nine months interviews design workshops with 15 people T1D, we had re-assess our assumptions about...
Objective The indications for endoscopic treatment in early stage cancer of the digestive tract are expanding with emergence and technical development submucosal dissection (ESD). ESD requires longer term stable sedation than conventional procedures due to necessity meticulous control devices during procedure. Propofol has a very short half-life can be administered continuously, which is advantageous long-term sedation. Propofol, thus, likely useful ESD. Methods Fifty consecutive patients...
<b>Background and study aims</b>: Carbon dioxide (CO<sub>2</sub>) insufflation is expected to be safe effective in endoscopic submucosal dissection (ESD) as well other procedures. The present aimed clarify the usefulness safety of CO<sub>2</sub> gastric ESD. <b>Patients methods:</b> A total 102 consecutive patients were randomly assigned (CO<sub>2</sub> group, n = 54) or air (Air 48). Abdominal pain distension chronologically recorded on a 100-mm visual analog scale (VAS). volume residual...
The Japan Esophageal Society created a working committee group consisting of 11 expert endoscopists and 2 pathologists with expertise in Barrett's esophagus (BE) esophageal adenocarcinoma. developed consensus-based classification for the diagnosis superficial BE-related neoplasms using magnifying endoscopy. has three characteristics: simplified, an easily understood by incorporating diagnostic criteria early gastric cancer, including white zone demarcation line, presence modified flat...
Aim: Endoscopic diagnosis of the lateral extension Barrett's cancer under squamous epithelium (BCUS) is sometimes difficult because unobservable in esophageal lumen. The aim present study was to clarify endoscopic features BCUS and verify usefulness acetic acid‐spraying method (AAS) for diagnosis. Methods: A total 25 patients with who had undergone resection were included this study. Histological examination patients' resected specimens performed identify presence BCUS. Then, images cases...
Co-design is a widely applied design process with well-documented values, including mutual learning and collective creativity. However, the real-world challenges of conducting multidisciplinary co-design research to inform self-care technologies are not well established. We provide qualitative account project that aimed machine applications for Type 1 Diabetes (T1D) self-management. Through interviews, we identify only perceived social, technological strategic benefits but also...
Background/Aims: For early gastric cancer (EGC) treated using endoscopic submucosal dissection (ESD) with poor curability defined by the Japanese Guidelines (non-curative EGC, N-EGC), additional gastrectomy has been recommended. However, N-EGC patients without often die of other diseases within a relatively short interval after ESD. It unclear whether is beneficial or not for such patients. The aim this study was to clarify predictors short-term survival Methods: One hundred six were...
Reinforcement Learning (RL) has shown remarkable success in solving relatively complex tasks, yet the deployment of RL systems real-world scenarios poses significant challenges related to safety and robustness. This paper aims identify further understand those thorough exploration main dimensions safe robust landscape, encompassing algorithmic, ethical, practical considerations. We conduct a comprehensive review methodologies open problems that summarizes efforts recent years address...
Abstract Background Currently, no classification system using magnification endoscopy for the diagnosis of superficial Barrett’s esophagus (BE)-related neoplasia has been widely accepted. This nationwide multicenter study aimed to validate diagnostic accuracy and reproducibility system, including flowchart developed by Japan Esophageal Society—Barrett’s working group (JES-BE) esophagus-related neoplasms. Methods The JES-BE acquired high-definition narrow-band imaging (HM-NBI) images...
Recent works have shown that tackling offline reinforcement learning (RL) with a conditional policy produces promising results. The Decision Transformer (DT) combines the approach and transformer architecture, showing competitive performance against several benchmarks. However, DT lacks stitching ability -- one of critical abilities for RL to learn optimal from sub-optimal trajectories. This issue becomes particularly significant when dataset only contains On other hand, conventional...
AIMTo assess the efficacy of CO2 insufflation for reduction mediastinal emphysema (ME) immediately after endoscopic submucosal dissection (ESD). METHODSA total 46 patients who were to undergo esophageal ESD randomly assigned receive either (CO2 group, n = 24) or air (Air 22).Computed tomography (CT) was carried out and next morning.Pain abdominal distention chronologically recorded using a 100-mm visual analogue scale (VAS).The volume residual gas in digestive tract measured CT imaging....
Afferent loop syndrome is often difficult to resolve. Among patients with afferent whose data were extracted from databases, 5 in whom metal stent placement was attempted included and evaluated this study. The procedure technically successful without any adverse events all patients. Metal stent(s) placed an endoscope the through-the-scope manner 4 via a percutaneous route 1 patient. Obvious clinical efficacy observed Adverse related occlusion during follow-up period not observed. for...
In this paper we investigate the use of model-based reinforcement learning to assist people with Type 1 Diabetes insulin dose decisions. The proposed architecture consists multiple Echo State Networks predict blood glucose levels combined Model Predictive Controller for planning. Network is a version recurrent neural networks which allows us learn long term dependencies in input time series data an online manner. Additionally, address quantification uncertainty more robust control. Here,...
Recent advances in both machine learning and Internet-of-Things have attracted attention to automatic Activity Recognition, where users wear a device with sensors their outputs are mapped predefined set of activities. However, few studies considered the balance between wearable power consumption activity recognition accuracy. This is particularly important when part computational load happens on device. In this paper, we present new methodology perform feature selection based Reinforcement...
Background/Aims The aim of this study was to evaluate the safety sedation with propofol as an alternative benzodiazepine drugs in outpatient endoscopy. Methods In prospective study, examinees who underwent endoscopy under and submitted a nextday questionnaire providing informed consent were evaluated. Periprocedural acute responses, late adverse events within 24 hours, examinee satisfaction Results Among 4,122 patients received 17,978 outpatient-based endoscopic examinations performed...
We herein report a case of early gastric cancer with mixed components having different grades atypia, which was correctly predicted by magnifying endoscopy combined narrow band imaging. A 67‐year‐old man had flat elevated lesion (0‐IIa) in the anterior wall antrum. With imaging, lateral extension (0‐IIb), not recognized white light imaging seen anal side main tumor. Magnifying saw relatively regular fine network pattern micro‐vessels surface 0‐IIa area. However, 0‐IIb area, villous structure...
Barrett's esophagus (BE) is a consequence of gastroesophageal reflux disease and predisposed to esophageal adenocarcinoma (EAC). EAC an exemplar model inflammation‐associated cancer. Glucocorticoids suppress inflammation through glucocorticoid receptor (GR) serum‐ glucocorticoid‐induced kinase‐1 (Sgk1) expressions. Therefore, we immunolocalized GR Sgk1 in the adjacent BE tissues studied their association with clinical course 87 patients who underwent surgical resection (N = 58) or endoscopic...
Objective The diagnostic accuracy of an endoscopic ultrasound-guided fine-needle aspiration cytology/biopsy combined with a cell-block method (FNA-CB) for gastrointestinal subepithelial lesions (GI-SELs) has not been fully studied. Methods A total 109 patients (with 110 GI-SELs) were evaluated to clarify the rate obtaining evaluable histology specimens using FNA-CB. In addition, we investigated following: 1) determining histology, 2) effects number cell clusters obtained via FNA-CB, 3)...