PMID- 25840894
OWN - NLM
STAT- MEDLINE
DCOM- 20160825
LR  - 20220311
IS  - 1432-2218 (Electronic)
IS  - 0930-2794 (Print)
IS  - 0930-2794 (Linking)
VI  - 30
IP  - 1
DP  - 2016 Jan
TI  - Two-stage optical system for colorectal polyp assessments.
PG  - 204-14
LID - 10.1007/s00464-015-4186-x [doi]
AB  - BACKGROUND AND AIMS: Macroscopic real-time evaluations of the histopathology and 
      degree of invasion of colorectal polyps help to select the most suitable 
      endoscopic treatment method. Dual-focus (DF) narrow-band imaging (NBI) is a new 
      imaging enhancement system that uses digital and optical methods to enhance the 
      view of blood vessels on mucosal surfaces. However, the superiority of this 
      technique over standard imaging techniques has not been previously reported. The 
      aim of this study was to determine whether the two-stage optical systems in a new 
      generation of endoscopes will increase the diagnostic accuracy of colorectal 
      polyp recognition. METHODS: The study included 270 patients, and 386 colorectal 
      polyps were diagnosed and removed. The polyps were assessed with white light and 
      NBI using one- and two-stage optical systems, respectively. After being 
      classified according to the Kudo pit pattern schemes, the polyps were removed and 
      histopathologically verified. RESULTS: Regarding non-neoplastic lesions (Kudo I 
      and II), no difference was observed in the recognition of polyps when using the 
      NBI-DF function. We observed improved accuracy in the preliminary diagnoses of 
      Kudo IIIL lesions (from 87.16 to 90.09%, p < 0.05) and Kudo IIIS lesions (from 
      87.29 to 92.79%, p < 0.01). NBI-DF also increased the accuracy of preliminary 
      diagnoses of Kudo IV lesions (from 88.24 to 94.12%, p < 0.01). The Kudo V pit 
      patterns were also more distinct with NBI-DF imaging, increasing the diagnostic 
      accuracy from 91.67 to 100%. CONCLUSIONS: Using a two-stage optical system with 
      electronic colorization of the mucosa increased diagnostic accuracy for 
      differentiating colorectal polyps with neoplastic potential.
FAU - Szura, Miroslaw
AU  - Szura M
AD  - First Department, General, Oncological and Gastrointestinal Surgery, Jagiellonian 
      University Medical College, 40th Kopernika St., 31-501, Krakow, Poland. 
      msszura@gmail.com.
FAU - Pasternak, Artur
AU  - Pasternak A
AD  - First Department, General, Oncological and Gastrointestinal Surgery, Jagiellonian 
      University Medical College, 40th Kopernika St., 31-501, Krakow, Poland. 
      artur.pasternak@uj.edu.pl.
AD  - Department of Anatomy, Jagiellonian University Medical College, 12th Kopernika 
      St., 31-034, Krakow, Poland. artur.pasternak@uj.edu.pl.
FAU - Bucki, Krzysztof
AU  - Bucki K
AD  - MEDICINA - Specialist Diagnostic & Therapeutic Centre, 5th Rogozinskiego St., 
      31-559, Krakow, Poland.
FAU - Urbanczyk, Katarzyna
AU  - Urbanczyk K
AD  - Department of Pathomorphology, Jagiellonian University Medical College, 16th 
      Grzegorzecka St., 31-531, Krakow, Poland.
FAU - Matyja, Andrzej
AU  - Matyja A
AD  - First Department, General, Oncological and Gastrointestinal Surgery, Jagiellonian 
      University Medical College, 40th Kopernika St., 31-501, Krakow, Poland.
LA  - eng
SI  - ClinicalTrials.gov/NCT01688557
PT  - Journal Article
PT  - Randomized Controlled Trial
PT  - Research Support, Non-U.S. Gov't
DEP - 20150404
PL  - Germany
TA  - Surg Endosc
JT  - Surgical endoscopy
JID - 8806653
SB  - IM
MH  - Adult
MH  - Aged
MH  - Colonic Polyps/pathology/*surgery
MH  - *Colonoscopes
MH  - Colonoscopy
MH  - Female
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - *Narrow Band Imaging
MH  - *Optical Devices
MH  - Single-Blind Method
PMC - PMC4710666
OTO - NOTNLM
OT  - Colonoscopy
OT  - Colorectal cancer
OT  - Dual-focus magnification
OT  - Narrow-band imaging
EDAT- 2015/04/05 06:00
MHDA- 2016/08/26 06:00
PMCR- 2015/04/04
CRDT- 2015/04/05 06:00
PHST- 2015/01/04 00:00 [received]
PHST- 2015/03/23 00:00 [accepted]
PHST- 2015/04/05 06:00 [entrez]
PHST- 2015/04/05 06:00 [pubmed]
PHST- 2016/08/26 06:00 [medline]
PHST- 2015/04/04 00:00 [pmc-release]
AID - 10.1007/s00464-015-4186-x [pii]
AID - 4186 [pii]
AID - 10.1007/s00464-015-4186-x [doi]
PST - ppublish
SO  - Surg Endosc. 2016 Jan;30(1):204-14. doi: 10.1007/s00464-015-4186-x. Epub 2015 Apr 
      4.