Tomohiro Kuroda - Academia.edu (original) (raw)

Uploads

Papers by Tomohiro Kuroda

Research paper thumbnail of Applying secret sharing for HIS backup exchange

To secure business continuity is indispensable for hospitals to fulfill its social responsibility... more To secure business continuity is indispensable for hospitals to fulfill its social responsibility under disasters. Although to back up the data of the hospital information system (HIS) at multiple remote sites is a key strategy of business continuity plan (BCP), the requirements to treat privacy sensitive data jack up the cost for the backup. The secret sharing is a method to split an original secret message up so that each individual piece is meaningless, but putting sufficient number of pieces together to reveal the original message. The secret sharing method eases us to exchange HIS backups between multiple hospitals. This paper evaluated the feasibility of the commercial secret sharing solution for HIS backup through several simulations. The result shows that the commercial solution is feasible to realize reasonable HIS backup exchange platform when template of contract between participating hospitals is ready.

Research paper thumbnail of What's Going On?

Companion of the 2018 ACM Conference on Computer Supported Cooperative Work and Social Computing

Research paper thumbnail of Decreased Administration of Life-Sustaining Treatment just before Death among Older Inpatients in Japan: A Time-Trend Analysis from 2012 through 2014 Based on a Nationally Representative Sample

International Journal of Environmental Research and Public Health

The administration of intensive end-of-life care just before death in older patients has become a... more The administration of intensive end-of-life care just before death in older patients has become a major policy concern, as it increases medical costs; however, care intensity does not necessarily indicate quality. This study aimed to describe the temporal trends in the administration of life-sustaining treatments (LSTs) and intensive care unit (ICU) admissions just before death in older inpatients in Japan. We utilized the National Database of Health Insurance Claims and Specific Health Checkups of Japan (NDB). Inpatients who were aged ≥65 years and died in October of 2012, 2013, or 2014 were analyzed. The numbers of decedents in 2012, 2013, and 2014 were 3362, 3473, and 3516, respectively. The frequencies of receiving cardiopulmonary resuscitation (CPR) (11.0% to 8.3%), mechanical ventilation (MV) (13.1% to 9.8%), central venous catheter (CVC) insertion (10.6% to 7.8%), and ICU admission (9.1% to 7.8%), declined between 2012 and 2014. After adjusting for age, sex, and type of ward,...

Research paper thumbnail of An Inflection-point Detection Method from Series of eGFR Data Measured at Irregular Time Intervals

Research paper thumbnail of Current Trend of VR Application for Assistive Technology

Journal of Medical Informatics, 2001

近年の仮想現実感 (VR) 技術の成熟によって,高度な現実感を安価に提供できるようになっ たことに伴い,VR を福祉分野に適用する試みは大きく広がりつつある.本稿では,福祉目 的の VR システ... more 近年の仮想現実感 (VR) 技術の成熟によって,高度な現実感を安価に提供できるようになっ たことに伴い,VR を福祉分野に適用する試みは大きく広がりつつある.本稿では,福祉目 的の VR システムだけではなく,VR 要素技術の福祉適用まで含めて,福祉 VR 研究の現状 について概観した.VR は福祉機器シミュレーション,障害者の社会生活訓練のほか,教育 支援,コミュニケーション支援など様々な分野に適用されている.一定の成功を収めている 福祉 VR 研究は,決して高度な現実感生成を目的とせず,VR なりの現実感を最大限発揮す ることを目指し,被支援者との密接なコミュニケーションのもとで進められたものが多い. 今後は高度に発達した情報ネットワーク,モバイルコンピューティング技術もとりいれ,人 と人とのコミュニケーションを密にする福祉 VR の発展が望まれる. (キーワード:仮想現実感,福祉工学)

Research paper thumbnail of An Optimum Data Warehouse for Epidemiological Analysis using the National Database of Health Insurance Claims of Japan

Background: While administrative databases for health care are increasingly used as research tool... more Background: While administrative databases for health care are increasingly used as research tools, such databases generally contain only health insurance claims data, the contents of which are insufficient for conducting epidemiological research. Creating a dataset appropriate for specific analysis requires technical expertise and familiarity with data analysis. The aim of our research is to develop a data warehouse (DW) accessible to researchers of epidemiology without this expertise. Methods: We began by adding commonly used attributes in the epidemiological field to the National Database of Health Insurance Claims of Japan (NDB), to construct a Research Question Oriented DB. Secondly, we developed a versatile analysis unit schema by which the Research Question Oriented DW was reconstructed as perpatient units, covering demographics including sex, age group etc. We then proposed a pattern relational calculus by which research-specific attributes can be added without expert knowle...

Research paper thumbnail of Ethics in Medical Engineering and Proposals to the Japanese Association of Sign Linguistics

Japanese Journal of Sign Language Studies, 2009

Research paper thumbnail of Absolute risk of acute coronary syndrome after severe hypoglycemia: A population‐based 2‐year cohort study using the National Database in Japan

Journal of Diabetes Investigation, 2019

Research paper thumbnail of Prototyping of Smart Wearable Socks for Periodic Limb Movement Home Monitoring System

Journal of Fiber Science and Technology, 2017

Research paper thumbnail of 3D Visual Information Display for a Tele-Micro-Surgery System Using High-speed Net work

The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec), 2003

Research paper thumbnail of 3303 Evaluation of Organ Exclusion Simulator with Force Feedback Device

The Proceedings of Design & Systems Conference, 2006

Research paper thumbnail of Imperceptible On-Screen Markers for Mobile Interaction on Public Large Displays

IEICE Transactions on Information and Systems, 2017

Research paper thumbnail of Towards a Medical Oriented Social Network Service: Analysis of Instant Messaging Communication among Emergency Physicians

Advanced Biomedical Engineering, 2020

Research paper thumbnail of A110カラードプラ像を用いた流れの3次元可視化法

Journal of the Visualization Society of Japan, 2000

Research paper thumbnail of Promoting Physical Activity in Japanese Older Adults Using a Social Pervasive Game: Randomized Controlled Trial (Preprint)

BACKGROUND Pervasive games aim to create more fun and engaging experiences by mixing elements fro... more BACKGROUND Pervasive games aim to create more fun and engaging experiences by mixing elements from the real world into the game world. Because they intermingle with players’ lives and naturally promote more casual gameplay, they could be a powerful strategy to stimulate physical activity among older adults. However, to use these games more effectively, it is necessary to understand how design elements of the game affect player behavior. OBJECTIVE The aim of this study was to evaluate how the presence of a specific design element, namely social interaction, would affect levels of physical activity. METHODS Participants were recruited offline and randomly assigned to control and intervention groups in a single-blind design. Over 4 weeks, two variations of the same pervasive game were compared: with social interaction (intervention group) and with no social interaction (control group). In both versions, players had to walk to physical locations and collect virtual cards, but the social...

Research paper thumbnail of Designing a Mobile Patient Information Sharing System using Patients Community Members: Perceptions of Emergency Physicians

Objectives: Emergency Physicians utilize multiple patient information (PI) sources within Emergen... more Objectives: Emergency Physicians utilize multiple patient information (PI) sources within Emergency Departments. Access to a centralized health record system is ideal but not always available to physicians. A technological gap exists in the context of PI sharing regarding patients’ representative and their in-situ involvement as an alternative PI source. The purpose of this study is to understand emergency physicians’ perceptions about patients’ representative and our design concept for improvement of PI sharing to physicians. Methods: Observations focused on physician’s interaction with representatives were used to understand the emergency setting which led to a mobile PI sharing application design. Semi-structured interviews were conducted with three experienced physicians to obtain their perceptions about the usefulness of our proposed design. Results: Physicians shared their experiences about interactions with patient representatives and perceptions about potential use our propo...

Research paper thumbnail of Evaluation of NISHIJIN e-textile for 12-lead ECG measurement through automatic ECG analyzer

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference, Jul 1, 2017

The authors are developing e-textile measuring 12-lead ECG signal based using a historical brocad... more The authors are developing e-textile measuring 12-lead ECG signal based using a historical brocade developing technique, NISHIJIN-ORI. In this paper, a NISHIJIN e-textile sensor belt prototype designed for ambulatory measurement (pre-hospital 12-lead ECG measurement) was tested on twenty volunteers. The recorded data was evaluated through the result of commercial automatic ECG analyzer. The obtained results are almost equivalent with the ones obtained through conventional ECG electrodes. However, the results suggest slight modification of the prototype.

Research paper thumbnail of Prototyping context-aware nursing support mobile system

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference, 2016

A context aware nursing support system to push right information to the right person at the right... more A context aware nursing support system to push right information to the right person at the right moment is the key to increase clinical safety under a computerized hospital. We prototyped a system which obtains context from positions of nurses and list of expected clinical procedures. A WoZ test showed that the proposed approach has potential to decrease incidents caused by information delivery error.

Research paper thumbnail of Design and Development of Mobile Services Processes for Senior Citizens

cetim.org

... Emergency Page 6. mobile phone terminal but is instead proposed to be integrated into a shopp... more ... Emergency Page 6. mobile phone terminal but is instead proposed to be integrated into a shopping cart design aided by a ubiquitous support in the shopping mall. 6 Discussions ... Kalasapur,Swaroop; Senthivel, Kumarvel; Kumar, Mohan: Service Oriented Pervasive ...

Research paper thumbnail of 事務局長退任にあたって

Japanese Journal of Sign Language Studies, 2012

Research paper thumbnail of Applying secret sharing for HIS backup exchange

To secure business continuity is indispensable for hospitals to fulfill its social responsibility... more To secure business continuity is indispensable for hospitals to fulfill its social responsibility under disasters. Although to back up the data of the hospital information system (HIS) at multiple remote sites is a key strategy of business continuity plan (BCP), the requirements to treat privacy sensitive data jack up the cost for the backup. The secret sharing is a method to split an original secret message up so that each individual piece is meaningless, but putting sufficient number of pieces together to reveal the original message. The secret sharing method eases us to exchange HIS backups between multiple hospitals. This paper evaluated the feasibility of the commercial secret sharing solution for HIS backup through several simulations. The result shows that the commercial solution is feasible to realize reasonable HIS backup exchange platform when template of contract between participating hospitals is ready.

Research paper thumbnail of What's Going On?

Companion of the 2018 ACM Conference on Computer Supported Cooperative Work and Social Computing

Research paper thumbnail of Decreased Administration of Life-Sustaining Treatment just before Death among Older Inpatients in Japan: A Time-Trend Analysis from 2012 through 2014 Based on a Nationally Representative Sample

International Journal of Environmental Research and Public Health

The administration of intensive end-of-life care just before death in older patients has become a... more The administration of intensive end-of-life care just before death in older patients has become a major policy concern, as it increases medical costs; however, care intensity does not necessarily indicate quality. This study aimed to describe the temporal trends in the administration of life-sustaining treatments (LSTs) and intensive care unit (ICU) admissions just before death in older inpatients in Japan. We utilized the National Database of Health Insurance Claims and Specific Health Checkups of Japan (NDB). Inpatients who were aged ≥65 years and died in October of 2012, 2013, or 2014 were analyzed. The numbers of decedents in 2012, 2013, and 2014 were 3362, 3473, and 3516, respectively. The frequencies of receiving cardiopulmonary resuscitation (CPR) (11.0% to 8.3%), mechanical ventilation (MV) (13.1% to 9.8%), central venous catheter (CVC) insertion (10.6% to 7.8%), and ICU admission (9.1% to 7.8%), declined between 2012 and 2014. After adjusting for age, sex, and type of ward,...

Research paper thumbnail of An Inflection-point Detection Method from Series of eGFR Data Measured at Irregular Time Intervals

Research paper thumbnail of Current Trend of VR Application for Assistive Technology

Journal of Medical Informatics, 2001

近年の仮想現実感 (VR) 技術の成熟によって,高度な現実感を安価に提供できるようになっ たことに伴い,VR を福祉分野に適用する試みは大きく広がりつつある.本稿では,福祉目 的の VR システ... more 近年の仮想現実感 (VR) 技術の成熟によって,高度な現実感を安価に提供できるようになっ たことに伴い,VR を福祉分野に適用する試みは大きく広がりつつある.本稿では,福祉目 的の VR システムだけではなく,VR 要素技術の福祉適用まで含めて,福祉 VR 研究の現状 について概観した.VR は福祉機器シミュレーション,障害者の社会生活訓練のほか,教育 支援,コミュニケーション支援など様々な分野に適用されている.一定の成功を収めている 福祉 VR 研究は,決して高度な現実感生成を目的とせず,VR なりの現実感を最大限発揮す ることを目指し,被支援者との密接なコミュニケーションのもとで進められたものが多い. 今後は高度に発達した情報ネットワーク,モバイルコンピューティング技術もとりいれ,人 と人とのコミュニケーションを密にする福祉 VR の発展が望まれる. (キーワード:仮想現実感,福祉工学)

Research paper thumbnail of An Optimum Data Warehouse for Epidemiological Analysis using the National Database of Health Insurance Claims of Japan

Background: While administrative databases for health care are increasingly used as research tool... more Background: While administrative databases for health care are increasingly used as research tools, such databases generally contain only health insurance claims data, the contents of which are insufficient for conducting epidemiological research. Creating a dataset appropriate for specific analysis requires technical expertise and familiarity with data analysis. The aim of our research is to develop a data warehouse (DW) accessible to researchers of epidemiology without this expertise. Methods: We began by adding commonly used attributes in the epidemiological field to the National Database of Health Insurance Claims of Japan (NDB), to construct a Research Question Oriented DB. Secondly, we developed a versatile analysis unit schema by which the Research Question Oriented DW was reconstructed as perpatient units, covering demographics including sex, age group etc. We then proposed a pattern relational calculus by which research-specific attributes can be added without expert knowle...

Research paper thumbnail of Ethics in Medical Engineering and Proposals to the Japanese Association of Sign Linguistics

Japanese Journal of Sign Language Studies, 2009

Research paper thumbnail of Absolute risk of acute coronary syndrome after severe hypoglycemia: A population‐based 2‐year cohort study using the National Database in Japan

Journal of Diabetes Investigation, 2019

Research paper thumbnail of Prototyping of Smart Wearable Socks for Periodic Limb Movement Home Monitoring System

Journal of Fiber Science and Technology, 2017

Research paper thumbnail of 3D Visual Information Display for a Tele-Micro-Surgery System Using High-speed Net work

The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec), 2003

Research paper thumbnail of 3303 Evaluation of Organ Exclusion Simulator with Force Feedback Device

The Proceedings of Design & Systems Conference, 2006

Research paper thumbnail of Imperceptible On-Screen Markers for Mobile Interaction on Public Large Displays

IEICE Transactions on Information and Systems, 2017

Research paper thumbnail of Towards a Medical Oriented Social Network Service: Analysis of Instant Messaging Communication among Emergency Physicians

Advanced Biomedical Engineering, 2020

Research paper thumbnail of A110カラードプラ像を用いた流れの3次元可視化法

Journal of the Visualization Society of Japan, 2000

Research paper thumbnail of Promoting Physical Activity in Japanese Older Adults Using a Social Pervasive Game: Randomized Controlled Trial (Preprint)

BACKGROUND Pervasive games aim to create more fun and engaging experiences by mixing elements fro... more BACKGROUND Pervasive games aim to create more fun and engaging experiences by mixing elements from the real world into the game world. Because they intermingle with players’ lives and naturally promote more casual gameplay, they could be a powerful strategy to stimulate physical activity among older adults. However, to use these games more effectively, it is necessary to understand how design elements of the game affect player behavior. OBJECTIVE The aim of this study was to evaluate how the presence of a specific design element, namely social interaction, would affect levels of physical activity. METHODS Participants were recruited offline and randomly assigned to control and intervention groups in a single-blind design. Over 4 weeks, two variations of the same pervasive game were compared: with social interaction (intervention group) and with no social interaction (control group). In both versions, players had to walk to physical locations and collect virtual cards, but the social...

Research paper thumbnail of Designing a Mobile Patient Information Sharing System using Patients Community Members: Perceptions of Emergency Physicians

Objectives: Emergency Physicians utilize multiple patient information (PI) sources within Emergen... more Objectives: Emergency Physicians utilize multiple patient information (PI) sources within Emergency Departments. Access to a centralized health record system is ideal but not always available to physicians. A technological gap exists in the context of PI sharing regarding patients’ representative and their in-situ involvement as an alternative PI source. The purpose of this study is to understand emergency physicians’ perceptions about patients’ representative and our design concept for improvement of PI sharing to physicians. Methods: Observations focused on physician’s interaction with representatives were used to understand the emergency setting which led to a mobile PI sharing application design. Semi-structured interviews were conducted with three experienced physicians to obtain their perceptions about the usefulness of our proposed design. Results: Physicians shared their experiences about interactions with patient representatives and perceptions about potential use our propo...

Research paper thumbnail of Evaluation of NISHIJIN e-textile for 12-lead ECG measurement through automatic ECG analyzer

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference, Jul 1, 2017

The authors are developing e-textile measuring 12-lead ECG signal based using a historical brocad... more The authors are developing e-textile measuring 12-lead ECG signal based using a historical brocade developing technique, NISHIJIN-ORI. In this paper, a NISHIJIN e-textile sensor belt prototype designed for ambulatory measurement (pre-hospital 12-lead ECG measurement) was tested on twenty volunteers. The recorded data was evaluated through the result of commercial automatic ECG analyzer. The obtained results are almost equivalent with the ones obtained through conventional ECG electrodes. However, the results suggest slight modification of the prototype.

Research paper thumbnail of Prototyping context-aware nursing support mobile system

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference, 2016

A context aware nursing support system to push right information to the right person at the right... more A context aware nursing support system to push right information to the right person at the right moment is the key to increase clinical safety under a computerized hospital. We prototyped a system which obtains context from positions of nurses and list of expected clinical procedures. A WoZ test showed that the proposed approach has potential to decrease incidents caused by information delivery error.

Research paper thumbnail of Design and Development of Mobile Services Processes for Senior Citizens

cetim.org

... Emergency Page 6. mobile phone terminal but is instead proposed to be integrated into a shopp... more ... Emergency Page 6. mobile phone terminal but is instead proposed to be integrated into a shopping cart design aided by a ubiquitous support in the shopping mall. 6 Discussions ... Kalasapur,Swaroop; Senthivel, Kumarvel; Kumar, Mohan: Service Oriented Pervasive ...

Research paper thumbnail of 事務局長退任にあたって

Japanese Journal of Sign Language Studies, 2012