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RISS 인기검색어
- 검색키워드
- 저자 : Kazutaka Mori (검색결과 2 건)
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Usefulness of Colored 3D Imaging of Respiratory Impedance in Asthma
Toshihiro Shirai,Kazutaka Mori,Masashi Mikamo,Yuichiro Shishido,Takefumi Akita,Satoru Morita,Kazuhiro Asada,Masato Fujii,Takafumi Suda,Kingo Chida 대한천식알레르기학회 2013 Allergy, Asthma & Immunology Research Vol.5 No.5
Purpose: Recently, the clinical application of the forced oscillation technique (FOT) has progressed with the spread of commercially available FOT devices, including the impulse oscillation system and MostGraph. We investigated the usefulness of color 3D imaging of respiratory impedance in asthma using MostGraph. Methods: Whole-breath and within-breath respiratory system resistance (Rrs) and reactance (Xrs) were measured in 78 patients with asthma. Color 3D images were classified into three patterns: the chronic obstructive pulmonary disease (COPD)-like pattern (high values of Rrs and Xrs with a marked respiratory cycle and frequency dependence), the asthma pattern (moderately high Rrs over the entire frequency and a respiratory cycle with slight Xrs changes), and a normal-like pattern (low Rrs and Xrs with few within-breath changes). The classification was performed by three researchers, who were unaware of the clinical information, and the clinical characteristics were compared among the three groups. Results: Color 3D imaging provided a COPD-like pattern in 25 patients, an asthma pattern in 39 patients, and a normal-like pattern in 14 patients. Patients with the COPD-like pattern were predominantly female with a higher body mass index, lower forced expiratory volume in 1 second (FEV1) and forced vital capacity (FVC), and higher Rrs and Xrs values (whole-breath and within-breath variation). Those with the normal pattern had higher FEV1 and FVC, and a lower single-breath nitrogen washout slope. There were no differences in asthma control or exhaled nitric oxide levels among the three groups. Conclusions: These results suggest that color 3D imaging of respiratory impedance may show asthma phenotypes.
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Sadao Horino,Midori Mori,Naoyuki Kubota,Shunsuke Gennai,Kazutaka Kogi 대한인간공학회 2007 대한인간공학회 학술대회논문집 Vol.- No.-
Conditions relating to universal design of the historic tourist areas around the JR Kita-Kamakura Station were studied in order to develop a barrier-free road map for wheelchair visitors. On the average, about 18,000 passengers were utilizing the station per day. Access conditions of the station facilities including means of using the platforms and toilets were examined in cooperation with wheelchair passengers. Access conditions of shops along a 1.8 km-long main streets leading to the station were examined in terms of road-floor height differences, and entrance and aisle widths, road signs and toilets. For the station, the need was suggested for providing a lift for reaching the platform and a multi-purpose toilet. Of 70 shops along the street, only 23% had the road-floor height difference of 2cm or less, 31% that of 3-6cm and 46% that of 7cm or more. The entrance width of 90cm or more was cleared by 41% and the aisle width of 90cm or more by 44% of the shops. Thus, 36% of the shops were evaluated to be accessible for wheelchair users. There were few multi-purpose toilets available along the street and an insufficient number of road signs for tourist routes. It was suggested that the rate of wheelchair-accessible shops would increase substantially by eliminating road-floor differences and that there was an urgent need for improving the accessibility for wheelchair visitors in terms of the station facilities, road signs and toilets. On the basis of these results, a road map describing barrier-free conditions for wheelchair visitors was designed and published. It was found useful together with barrier-free maps previously offered for other tourist routes of the city.
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