Visualization of Laterally Spreading Colorectal Tumors by Using Image-Enhanced Endoscopy
Laterally spreading tumors may sometimes evade detection by colonoscopy. This study aimed to evaluate the use of image-enhanced endoscopy for visualizing laterally spreading tumors of the nongranular type. We reviewed consecutive patients with 47 non-granular-type laterally spreading tumors that had...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Gastroenterology Research and Practice |
| Online Access: | http://dx.doi.org/10.1155/2012/638391 |
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| _version_ | 1832556770608807936 |
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| author | Naoto Tamai Yutaka Saito Taku Sakamoto Takeshi Nakajima Takahisa Matsuda Namasivayam Vikneswaran Hisao Tajiri |
| author_facet | Naoto Tamai Yutaka Saito Taku Sakamoto Takeshi Nakajima Takahisa Matsuda Namasivayam Vikneswaran Hisao Tajiri |
| author_sort | Naoto Tamai |
| collection | DOAJ |
| description | Laterally spreading tumors may sometimes evade detection by colonoscopy. This study aimed to evaluate the use of image-enhanced endoscopy for visualizing laterally spreading tumors of the nongranular type. We reviewed consecutive patients with 47 non-granular-type laterally spreading tumors that had been examined using white-light imaging, autofluorescence imaging, narrow-band imaging, and chromoendoscopy with indigo carmine. The quality of visualization was evaluated using a 5-point scale by less- and more-experienced endoscopists. Autofluorescence imaging provided significantly better visualization than white-light imaging for both less-experienced and experienced endoscopists. On the other hand, no significant differences were observed between the quality of visualization provided by white-light imaging and narrow-band imaging for less-experienced endoscopists. Autofluorescence imaging provides high-quality visualization of non-granular-type laterally spreading tumors on still images. Multicenter trials should be conducted to confirm the usefulness of autofluorescence imaging in detecting laterally spreading colorectal tumors. |
| format | Article |
| id | doaj-art-b5171ecda7e84ca48bf4d6786e132d04 |
| institution | Kabale University |
| issn | 1687-6121 1687-630X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Gastroenterology Research and Practice |
| spelling | doaj-art-b5171ecda7e84ca48bf4d6786e132d042025-02-03T05:44:26ZengWileyGastroenterology Research and Practice1687-61211687-630X2012-01-01201210.1155/2012/638391638391Visualization of Laterally Spreading Colorectal Tumors by Using Image-Enhanced EndoscopyNaoto Tamai0Yutaka Saito1Taku Sakamoto2Takeshi Nakajima3Takahisa Matsuda4Namasivayam Vikneswaran5Hisao Tajiri6Endoscopy Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, JapanEndoscopy Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, JapanEndoscopy Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, JapanEndoscopy Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, JapanEndoscopy Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, JapanMBBS, Department of Gastroenterology and Hepatology, Singapore General Hospital, 769608, SingaporeDepartment of Gastroenterology and Hepatology, The Jikei University School of Medicine, 3-25-8 Nishi Shinbashi, Minato-ku, Tokyo 105-8461, JapanLaterally spreading tumors may sometimes evade detection by colonoscopy. This study aimed to evaluate the use of image-enhanced endoscopy for visualizing laterally spreading tumors of the nongranular type. We reviewed consecutive patients with 47 non-granular-type laterally spreading tumors that had been examined using white-light imaging, autofluorescence imaging, narrow-band imaging, and chromoendoscopy with indigo carmine. The quality of visualization was evaluated using a 5-point scale by less- and more-experienced endoscopists. Autofluorescence imaging provided significantly better visualization than white-light imaging for both less-experienced and experienced endoscopists. On the other hand, no significant differences were observed between the quality of visualization provided by white-light imaging and narrow-band imaging for less-experienced endoscopists. Autofluorescence imaging provides high-quality visualization of non-granular-type laterally spreading tumors on still images. Multicenter trials should be conducted to confirm the usefulness of autofluorescence imaging in detecting laterally spreading colorectal tumors.http://dx.doi.org/10.1155/2012/638391 |
| spellingShingle | Naoto Tamai Yutaka Saito Taku Sakamoto Takeshi Nakajima Takahisa Matsuda Namasivayam Vikneswaran Hisao Tajiri Visualization of Laterally Spreading Colorectal Tumors by Using Image-Enhanced Endoscopy Gastroenterology Research and Practice |
| title | Visualization of Laterally Spreading Colorectal Tumors by Using Image-Enhanced Endoscopy |
| title_full | Visualization of Laterally Spreading Colorectal Tumors by Using Image-Enhanced Endoscopy |
| title_fullStr | Visualization of Laterally Spreading Colorectal Tumors by Using Image-Enhanced Endoscopy |
| title_full_unstemmed | Visualization of Laterally Spreading Colorectal Tumors by Using Image-Enhanced Endoscopy |
| title_short | Visualization of Laterally Spreading Colorectal Tumors by Using Image-Enhanced Endoscopy |
| title_sort | visualization of laterally spreading colorectal tumors by using image enhanced endoscopy |
| url | http://dx.doi.org/10.1155/2012/638391 |
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