| Theme |
Narrow Band Imaging (NBI) / Fuji Intelligent Color Enhancement (FICE) and pit pattern in colon and rectum |
| Title |
Pit pattern diagnosis of colorectal lesions using NBI magnifying colonoscopy : including comparisons with magnifying chromoendoscopy |
| Author |
Toshiki Nikami |
Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine |
| Author |
Shoichi Saito |
Department of Endoscopy, The Jikei University School of Medicine |
| Author |
Hiroyuki Aihara |
Department of Endoscopy, The Jikei University School of Medicine |
| Author |
Hiroshi Arakawa |
Department of Endoscopy, The Jikei University School of Medicine |
| Author |
Hisao Tajiri |
Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine / Department of Endoscopy, The Jikei University School of Medicine |
| Author |
Masahiro Ikegami |
Department of Pathology, The Jikei University School of Medicine |
| [ Summary ] |
Pit pattern provide a very useful method for diagnosing colorectal lesions. In this report, we assessed the usefulness of Narrow Band Imaging (NBI) magnifying endoscopy for pit pattern diagnosis in comparison to magnifying chromoendoscopy. The values for sensitivity, specificity, and accuracy in differrentiating hyperplastic polyps from adenomas, and for differential diagnosis of submucosal massive invasive cancer, by pit pattern using NBI, were not higher than those for chromoendoscopy. The rate of correlation between chromoendoscopy and NBI magnifying endoscopy was high for type II, III, and V-UC (we called type V pit which were not clearly recognized, were termed “UC ; unclear”). It was very difficult to observe and classify, strictiy, irregular pit pattern, such as type V. Furthermore discussion will be needed concerning pit pattern diagnosis obtained with NBI. Consideration of the ease of operating this system must also be kept in mind. |