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Does magnifying narrow-band imaging or magnifying chromoendoscopy help experienced endoscopists assess invasion depth of large sessile and flat polyps?
Dig Dis Sci 2014; 59(7):1520-8DD

Abstract

BACKGROUND

Distinguishing deep submucosa (SM) from superficial SM cancer in large sessile and flat colorectal polyps (>2 cm) is crucial in making the most appropriate therapeutic decision. We evaluated the additional role of magnifying narrow-band imaging (NBI) and magnifying chromoendoscopy (MCE) in assessing the depth of invasion in large sessile and flat polyps in comparison to morphological evaluation performed by experienced endoscopists.

METHODS

From May 2011 to December 2011, a total of 85 large sessile and flat polyps were analyzed. Endoscopic features of the polyps were independently evaluated by experienced endoscopists. Subsequently, the polyps were observed using magnifying NBI and MCE.

RESULTS

A total of 58 intramucosal lesions and 27 SM cancers (five superficial and 22 deep) were identified. The diagnostic accuracy of the experienced endoscopists, NBI, and MCE were 92.9, 90.6, and 89.4 %, respectively, for deep SM cancer. In combination with NBI or MCE, the diagnostic accuracy of the experienced endoscopists did not change significantly for deep SM cancer, with an accuracy of 95.3 % for both NBI and MCE.

CONCLUSIONS

Conventional colonoscopy can differentiate superficial from deep SM cancers with an accuracy of as high as 92.9 % in large sessile and flat polyps. Further diagnostic strategies are required in order to precisely assess the depth of invasion, especially in large colorectal polyps.

Authors+Show Affiliations

Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, 120-752, Seoul, Republic of Korea.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Journal Article

Language

eng

PubMed ID

24839918

Citation

Jang, Hui Won, et al. "Does Magnifying Narrow-band Imaging or Magnifying Chromoendoscopy Help Experienced Endoscopists Assess Invasion Depth of Large Sessile and Flat Polyps?" Digestive Diseases and Sciences, vol. 59, no. 7, 2014, pp. 1520-8.
Jang HW, Park SJ, Cheon JH, et al. Does magnifying narrow-band imaging or magnifying chromoendoscopy help experienced endoscopists assess invasion depth of large sessile and flat polyps? Dig Dis Sci. 2014;59(7):1520-8.
Jang, H. W., Park, S. J., Cheon, J. H., Kim, T. I., Kim, W. H., & Hong, S. P. (2014). Does magnifying narrow-band imaging or magnifying chromoendoscopy help experienced endoscopists assess invasion depth of large sessile and flat polyps? Digestive Diseases and Sciences, 59(7), pp. 1520-8. doi:10.1007/s10620-014-3090-x.
Jang HW, et al. Does Magnifying Narrow-band Imaging or Magnifying Chromoendoscopy Help Experienced Endoscopists Assess Invasion Depth of Large Sessile and Flat Polyps. Dig Dis Sci. 2014;59(7):1520-8. PubMed PMID: 24839918.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Does magnifying narrow-band imaging or magnifying chromoendoscopy help experienced endoscopists assess invasion depth of large sessile and flat polyps? AU - Jang,Hui Won, AU - Park,Soo Jung, AU - Cheon,Jae Hee, AU - Kim,Tae Il, AU - Kim,Won Ho, AU - Hong,Sung Pil, Y1 - 2014/05/20/ PY - 2013/10/04/received PY - 2014/02/19/accepted PY - 2014/5/21/entrez PY - 2014/5/21/pubmed PY - 2014/8/27/medline SP - 1520 EP - 8 JF - Digestive diseases and sciences JO - Dig. Dis. Sci. VL - 59 IS - 7 N2 - BACKGROUND: Distinguishing deep submucosa (SM) from superficial SM cancer in large sessile and flat colorectal polyps (>2 cm) is crucial in making the most appropriate therapeutic decision. We evaluated the additional role of magnifying narrow-band imaging (NBI) and magnifying chromoendoscopy (MCE) in assessing the depth of invasion in large sessile and flat polyps in comparison to morphological evaluation performed by experienced endoscopists. METHODS: From May 2011 to December 2011, a total of 85 large sessile and flat polyps were analyzed. Endoscopic features of the polyps were independently evaluated by experienced endoscopists. Subsequently, the polyps were observed using magnifying NBI and MCE. RESULTS: A total of 58 intramucosal lesions and 27 SM cancers (five superficial and 22 deep) were identified. The diagnostic accuracy of the experienced endoscopists, NBI, and MCE were 92.9, 90.6, and 89.4 %, respectively, for deep SM cancer. In combination with NBI or MCE, the diagnostic accuracy of the experienced endoscopists did not change significantly for deep SM cancer, with an accuracy of 95.3 % for both NBI and MCE. CONCLUSIONS: Conventional colonoscopy can differentiate superficial from deep SM cancers with an accuracy of as high as 92.9 % in large sessile and flat polyps. Further diagnostic strategies are required in order to precisely assess the depth of invasion, especially in large colorectal polyps. SN - 1573-2568 UR - https://www.unboundmedicine.com/medline/citation/24839918/Does_magnifying_narrow_band_imaging_or_magnifying_chromoendoscopy_help_experienced_endoscopists_assess_invasion_depth_of_large_sessile_and_flat_polyps L2 - https://doi.org/10.1007/s10620-014-3090-x DB - PRIME DP - Unbound Medicine ER -