著者

村上 啓二 田中 弘富 増山 善明 吉川 昭

出版者

Japanese Society for Medical and Biological Engineering

雑誌

医用電子と生体工学 (ISSN:00213292)

巻号頁・発行日

vol.20, no.2, pp.113-116, 1982

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Effects of data compression, to save the processing time in the P-wave recognition program with the adaptive correlating filter (ACF), on the performance of the ACF has been studied.All QRS or QRST regions were eliminated from the record to compress ECG data.<BR>Two indices were adopted as criteria for evaluating the effects. One was derived on the basis of the performance characteristics of the ACF, while the other was the mean error probability in detecting P-waves by using the ACF.<BR>In result, it was shown that the method for data compression could make up for the loss of the P-wave information caused by the data reduction. So the data reduction proposed here makes data compression feasible with little deterioration of the ACF performance.

出版者

Japanese Society for Medical and Biological Engineering

雑誌

生体医工学 (ISSN:1347443X)

巻号頁・発行日

vol.46, no.1, pp.224-226, 2008

著者

本谷 崇之 森 正人

出版者

Japanese Society for Medical and Biological Engineering

雑誌

生体医工学 (ISSN:1347443X)

巻号頁・発行日

vol.52, pp.O-287-O-288, 2014

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With recent advanced and complex medical technologies, viewing the locations of blood vessels and organs through 3D-reconstructed images during medical operations is essential for safe and accurate procedures. The conventional observation methods require the use of computer mice with the hand, which is inappropriate in sanitary environments such as operation rooms. We developed an application program for monitoring volume-rendered images using the Leap Motion, a remote-controlling device instead of conventional mice. In this research, we realized an interface that allows the users to have synchronized perception and understanding of holding 3D objects, which can be frustrating when using the Leap Motion, through the postures of fingers and timing input. In our demonstrational experiment, doctors reviewed that they could observe three-dimensional location information in a sanitary manner through easy operations. This method proves the possibility of the Leap Motion becoming an indispensable device in diverse medical fields.

著者

Chun Kit Alex Chan Hiroyuki Hamada KOHEI HIGUCHI Kazusuke Maenaka

出版者

Japanese Society for Medical and Biological Engineering

雑誌

生体医工学 (ISSN:1347443X)

巻号頁・発行日

vol.51, no.Supplement, pp.M-158, 2013 (Released:2013-09-06)

著者

Abhijit Suprem

出版者

Japanese Society for Medical and Biological Engineering

雑誌

生体医工学 (ISSN:1347443X)

巻号頁・発行日

vol.51, no.Supplement, pp.R-12, 2013 (Released:2013-09-06)

著者

福島 大志 西川 敦 宮崎 文夫 関野 正樹 安室 喜弘 松崎 大河 細見 晃一 齋藤 洋一

出版者

Japanese Society for Medical and Biological Engineering

雑誌

生体医工学 (ISSN:1347443X)

巻号頁・発行日

vol.49, no.1, pp.122-131, 2011

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Repetitive Transcranial Magnetic Stimulation (rTMS) is effective for intractable diseases of the nervous system. As the effects of rTMS last only several hours, rTMS therapies need to be continued daily. Under present circumstances, it is difficult to use rTMS in patients' home, because only experienced physicians in limited hospitals can use the expensive and complicated rTMS system. Therefore, we developed a magnetic navigation system for home use of rTMS. The proposed system uses inexpensive and small magnetic sensors; hence it is suitable for home use. By using the proposed method, even people who have no medical knowledge and technique can easily navigate the coil to the optimal position preliminarily specified by expert physicians. Our system needs to collect some dataset which consists of magnetic field and the corresponding position of the coil at the patients' initial visit. Since it is bothersome to collect a large number of dataset, we reduced the dataset by approximation using multi-regression analysis.

著者

生田 幸士

出版者

Japanese Society for Medical and Biological Engineering

雑誌

BME : bio medical engineering (ISSN:09137556)

巻号頁・発行日

vol.14, no.1, pp.29-32, 2000-01-10

参考文献数

1

被引用文献数

4