| 特集名 | 最新の大腸内視鏡と挿入法の進歩 | |
|---|---|---|
| 題名 | 電動ズーム式大腸内視鏡の実際 (3) 東芝 | |
| 発刊年月 | 2001年 02月 | |
| 著者 | 小山 恒男 | 佐久総合病院内科 |
| 著者 | 宮田 佳典 | 佐久総合病院内科 |
| 著者 | 友利 彰寿 | 佐久総合病院内科 |
| 著者 | 堀田 欣一 | 佐久総合病院内科 |
| 著者 | 島谷 茂樹 | 佐久総合病院内科 |
| 著者 | 山田 繁 | 佐久総合病院内科 |
| 著者 | 高野 政由起 | 東芝株式会社 |
| 著者 | 藤田 寛 | 東芝株式会社 |
| 【 要旨 】 | 可変焦点式電子内視鏡(TCE-5500 MV，東芝製)は焦点を2段階切り替え式にしたため，瞬時に60倍の拡大観察が可能であり，工藤のIIIspitも明瞭に観察できた．また，通常観察モードと拡大観察モードでの被写界深度が重なる設定にしたため，近接観察から拡大観察へスムーズに移行することが可能となった． また2段階の切り替え式であるため，拡大観察時には常に同じ拡大率で観察することができ，このときの視野幅は5mmとなるため，病変の大きさを計測することが可能となった． TCE－5500 MVは通常観察から拡大観察までをきわめて短時間に円滑に施行することができる，優れた電子内視鏡と思われた． |
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| Theme | Latest Developments in Devices Related to Colonoscopy and Progress in Insertion Techniques | |
|---|---|---|
| Title | A New Magnifying Colonoscope Made by TOSHIBA | |
| Author | Tsuneo Oyama | Department of Gastroenterology, Saku Central Hospital |
| Author | Yoshinori Miyata | Department of Gastroenterology, Saku Central Hospital |
| Author | Akihisa Tomori | Department of Gastroenterology, Saku Central Hospital |
| Author | Kinichi Hotta | Department of Gastroenterology, Saku Central Hospital |
| Author | Shigeki Shimaya | Department of Gastroenterology, Saku Central Hospital |
| Author | Shigeru Yamada | Department of Gastroenterology, Saku Central Hospital |
| Author | Masayuki Takano | Toshiba Medical Co., Ltd. |
| Author | Hiroshi Fujita | Toshiba Medical Co., Ltd. |
| [ Summary ] | A new magnifying colonoscope made by TOSHIBA is useful for the diagnosis of solar disease. The size and shape of this new magnifying colonoscope are the same as the normal colonoscope. When we found some lesions in a screening, magnifying observation can easily be performed by pushing a button. The magnification rate is sixty times for a 16-inch monitor. In the magnifying mode, the pit pattern of a lesion may be clearly observed even if it had a very small pit pattern like IIIs or V. Case 1: A shallow depressed lesion of the sigmoid colon. The surface is red and smooth (Fig. 3a - c). The IIIs and IIIL pit pattern were observed in the magnifying mode (Fig. 3d, e). Almost all parts of the lesion are limited in the mucosal layer, but they were found to have invaded the mid-submucosal layer (sm2) at only one point (Fig. 3f). Case 2: A shallow depressed lesion with a marginal elevation. There was a deep depression in the shallow depression (Fig. 4a, b). A IIIL pit pattern was observed at the marginal elevation and a VN pit pattern at the deep depression (Fig. 4c, d). The invasion depth was sm1 at a small part of the deep depression (Fig.4e). This new magnifying colonoscope is useful for both screenings and work-ups. |
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