| Theme |
Newly developed devices of colonoscope and their prospect in practice |
| Title |
Value of adaptive index of hemoglobin color enhancement for endoscopic diagnosis of colorectal disease |
| Author |
Hiroshi Kawano |
Second Department of Internal Medicine, Kurume University School of Medicine |
| Author |
Osamu Tsuruta |
Second Department of Internal Medicine, Kurume University School of Medicine |
| Author |
Yuichirou Tsuji |
Second Department of Internal Medicine, Kurume University School of Medicine |
| Author |
Kenichi Yoshimori |
Second Department of Internal Medicine, Kurume University School of Medicine |
| Author |
Takeshi Tohbaru |
Second Department of Internal Medicine, Kurume University School of Medicine |
| Author |
Michio Sata |
Second Department of Internal Medicine, Kurume University School of Medicine |
| Author |
Atsushi Toyonaga |
Division of Gastroenterology and Endoscopy, Kurume University School of Medicine |
| Author |
Nobuyuki Arima |
Department of Pathology, Kurume University School of Medicine |
| [ Summary ] |
Small flat and depressed type colorectal tumors still constitute a considerable challenge for all endoscopists. Such depressed lesions have more malignant potential at an early stage than other polypoid lesions.
Therefore, we must diagnose such lesions based on several important findings such as slightly reddish mucosa, fold deformity or, changes in the vascular network. Recently, a new type of index of hemoglobin color enhancement system, that can discriminate insignificant color changes, was developed by Olympus Optical Co. (Tokyo, Japan). Color enhancement clearly delineates tumor redness and vascular networks. We examined the clinical value of an adaptive IHb color enhancement for the detection of colorectal lesions. The results of this prospective study demonstrate that an adaptive index of hemoglobin color enhancement is effective for detection of colorectal tumors. However, we believe that this system would make the number of false positive indications for colorectal lesions. It is therefore necessary to confirm the optimal enhancement level of this system for endoscopic diagnosis, in order to make the adaptive index of hemoglobin color enhancement image processing system more accurate. |