I期原発性非小細胞肺癌における微小リンパ節転移検出の意義

取得学位 : 博士（医学）, 学位授与番号 : 医博甲第1331号，学位授与年月日：平成10年11月30日,学位授与年：199

Having Different Dialog Roles in Telecommunication by Using Two Teleoperated Robots Reduces an Operator’s Guilt

The version of record of this article, first published in International Journal of Social Robotics, is available online at Publisher’s website: https://doi.org/10.1007/s12369-024-01125-1.In recent years, applications of social robots as the operator’s avatar have been widely studied for remote conversation with rich nonverbal information. Having another side-participant robot beside the avatar robot of the operator was found to be effective for providing long-lasting backchannels to the interlocutor. The side-participant robot is also expected to play a role in assisting human participation in multiparty conversations. However, such a focus has not been applied to remote conversations with multiple robots. Here, we propose a multiple-robot telecommunication system with which the operator can use a side-participant robot to assist conversation that is developed by the operator through the main speaker robot to verify its effectiveness. In the laboratory experiment where the subjects were made to feel stressed by being forced to provide rude questions to the interlocutor, the proposed system was shown to reduce guilt and to improve the overall mood of operators. The result encourages the application of a multi robot remote conversation system to allow the user to participate in remote conversations with less anxiety of potential failure in maintaining the conversation

Impact of myocardial perfusion abnormality on prognosis in patients with non-ischemic dilated cardiomyopathy

SummaryBackgroundMyocardial perfusion imaging shows various patterns in patients with non-ischemic dilated cardiomyopathy (DCM). However, influences of regional abnormalities of myocardial perfusion or ventricular wall motion on prognosis in DCM patients remains to be clarified. Accordingly, we investigated a relation between myocardial perfusion patterns and long-term prognosis in DCM patients.Methods and resultsSixty-two patients were divided into 2 groups according to patterns of 99mTc-Tetrofosmin scintigraphy, i.e. large focal defects (focal) and minimally impaired perfusion or multiple small defects (non-focal). There were no differences between the 2 groups in left ventricular (LV) end-diastolic dimensions (63.4±9.1 and 63.8.4±7.5mm, respectively) and LV ejection fraction (30.3±9.2 and 27.9±7.8%, respectively), indicating LV systolic dysfunction was comparable between the groups. The focal group had a higher prevalence of brain natriuretic peptide ≧200ng/dl and plasma norepinephrine ≧500pg/ml than the non-focal group (p<0.05), and had longer QRS durations (p<0.05). The focal group had non-sustained ventricular tachycardia (VT) (p<0.05) on 24-h electrocardiogram recording and a history of VT/ventricular fibrillation more frequently (p<0.05), and had higher New York Heart Association functional class than the non-focal group (p<0.05). The mortality was significantly higher in the focal group (56.0%) than in the non-focal group (28.6%) and the survival curves revealed worse prognosis in the focal group during a follow-up period of 5.3±2.8 years.ConclusionsNon-ischemic DCM patients with focal defects are accompanied by more advanced heart failure and poor prognosis compared to those with minimally impaired perfusion or multiple small defects, despite comparable LV systolic dysfunction

Associations between the distance covered in the incremental shuttle walk test and lung function and health status in patients with chronic obstructive pulmonary disease

Background: Field walk tests such as the incremental shuttle walk test (ISWT) are simple tests for assessing the degree of disability in individuals with chronic obstructive pulmonary disease (COPD). In the present study, the correlations between exercise performance in the ISWT, lung function, and health status were examined in patients with COPD of varying seventies. Methods: A retrospective examination of 277 COPD patients was performed using the ISWT and lung function tests along with assessment of health status using St. George's Respiratory Questionnaire (SGRQ). In addition, we assessed the correlations between the walking distance, lung function parameters, and SGRQ scores. Results: ISWT distances were poorly correlated with lung function parameters and SGRQ scores in mild COPD patients. In contrast, ISWT distances were significantly correlated with pulmonary function parameters, such as vital capacity (%predicted) and forced expiratory volume in one second, and SGRQ scores in moderate and severe COPD patients. Conclusions: The ISWT is more independent of health status and pulmonary function in patients with mild COPD compared to moderate or severe cases. Therefore, the exercise capacity of patients with mild COPD should be estimated by the ISWT. (C) 2016 The Japanese Respiratory Society. Published by Elsevier B.V. All rights reserved.ArticleRESPIRATORY INVESTIGATION.55(1):33-38(2017)journal articl