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您的检索式：作者名="Tomohiro Seki"
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| 1 | Clinical study using novel endoscopic system for measuring size of gastrointestinal lesion显示文摘AIM:To verify the performance of a lesion size measurement system through a clinical study.METHODS:Our proposed system,which consists of a conventional endoscope,an optical device,an optical probe,and a personal computer,generates a grid scale to measure the lesion size from an endoscopic image.The width of the grid scale is constantly adjusted according to the distance between the tip of the endoscope and lesion because the lesion size on an endoscopic image changes according to the distance.The shape of the grid scale was corrected to match the distortion of the endoscopic image.The distance was calculated using the amount of laser light reflected from the lesion through an optical probe inserted into the instrument channel of the endoscope.The endoscopist can thus measure the lesion size without contact by comparing the lesion with the size of the grid scale on the endoscopic image.(1)A basic test was performed to verify the relationship between the measurement error eM and the tilt angle of the endoscope;and(2)The sizes of three colon polyps were measured using our system during endoscopy.These sizes were immediately measured by scale after their removal.RESULTS:There was no error atα=0°.In addition,the values of eM(mean±SD)were 0.24±0.11 mm(α=10°),0.90±0.58 mm(α=20°)and 2.31±1.41mm(α=30°).According to these results,our system has been confirmed to measure accurately when the tilt angle is less than 20°.The measurement error was approximately 1 mm in the clinical study.Therefore,it was concluded that our proposed measurement system was also effective in clinical examinations.CONCLUSION:By combining simple optical equipment with a conventional endoscope,a quick and accurate system for measuring lesion size was established. | Kiyoshi Oka Takeshi Seki Tomohiro Akatsu Takao Wakabayashi Kazuo Inui Junji Yoshino | 2014 | World Journal of Gastroenterology2014，20，14： | 1 |
| 2 | Forma- tion of supramolecular polymers and discrete dimers of perylene bisimide dyes based on melamine-cyanurates hy- drogen-bonding ineraetion 显示文摘 | Tomohiro Seki Shiki Yagai Takashi Karatsu | 2008 | J Org Chem2008，73，： | 1 |
| 3 | Electric Field Enhancement of Nano Gap of Silver Prisms显示文摘用数字计算,我们在本地轻紧张改进上与圆角落检验一双 nano 差距银棱柱的差距距离的效果。二座山峰由于局部性的表面电浆子(LSP ) ,刺激从 900mn to300nm 在一个波长范围被观察。结果证明那达到顶点在一更长并且更短的波长通信了象 todipole 一样和像四极的 LSP 回声分别地。在 to20nm 上面的差距距离比单个银 nano 棱柱的向更大的轻紧张改进提供圆角落,这被发现。而且, nano 差距银棱柱被直接集中的离子横梁处理制作,并且我们由一个共焦的光系统测量一双 nano 棱柱的散布轻光谱。然而,因为 nano 的尺寸豁开,二座 LSP 山峰没在可见范围被观察,棱柱太大。 | KENZO Yamaguchi TOMOHIRO Inoue MASAMITSU Fujii MASANOBU Haraguchi TOSHIHIRO Okamoto MASUO Fukui SHU Seki SEIICHI Tagawa | 2007 | Chinese Physics Letters2007，24，10： | 0 |
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