The ability of a novel blue laser imaging system for the diagnosis of invasion depth of colorectal neoplasms View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2013-03-15

AUTHORS

Naohisa Yoshida, Takashi Hisabe, Yutaka Inada, Munehiro Kugai, Nobuaki Yagi, Fumihito Hirai, Kenshi Yao, Toshiyuki Matsui, Akinori Iwashita, Mototsugu Kato, Akio Yanagisawa, Yuji Naito

ABSTRACT

BackgroundFujifilm has developed a novel endoscope system with two kinds of lasers that enables us to allow narrow-band light observation with blue laser imaging (BLI). The aim of this study was to evaluate BLI magnification in comparison with narrow-band imaging (NBI) magnification for the diagnosis of colorectal neoplasms.MethodsThis was a multicenter open study. A total of 104 colorectal neoplasms were examined with BLI and NBI magnifications in Kyoto Prefectural University of Medicine and Fukuoka University Chikushi Hospital. Vascular and surface patterns of tumors under BLI magnification were compared with those under NBI magnification, using a published NBI classification. The main outcome was the correlation between the NBI classification diagnosed by BLI or NBI magnification and the histopathological analyses.ResultsSixty-two cases of adenoma, 34 cases of intramucosal cancer and shallowly invaded submucosal cancer, and eight cases of deeply invaded submucosal cancer were diagnosed. The diagnostic accuracy of BLI magnification in the NBI classification was 74.0 % (77/104), similar to that of NBI magnification (77.8 %). The consistency rate between BLI and NBI magnification in the NBI classification was 74.0 %. Concerning image evaluation, the interobserver variability of two expert endoscopists (N.Y. and T.H.) in BLI magnification was κ = 0.863. On the other hand, the intraobserver variability of the two endoscopists was κ = 0.893 (N.Y.) and 0.851 (T.H.).ConclusionsBLI magnification by laser source could predict histopathological diagnosis and invasion depth of colorectal neoplasms. The diagnostic effectiveness of this method was similar to that of NBI magnification. More... »

PAGES

73-80

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s00535-013-0772-7

DOI

http://dx.doi.org/10.1007/s00535-013-0772-7

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1023913138

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/23494646


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25 schema:description BackgroundFujifilm has developed a novel endoscope system with two kinds of lasers that enables us to allow narrow-band light observation with blue laser imaging (BLI). The aim of this study was to evaluate BLI magnification in comparison with narrow-band imaging (NBI) magnification for the diagnosis of colorectal neoplasms.MethodsThis was a multicenter open study. A total of 104 colorectal neoplasms were examined with BLI and NBI magnifications in Kyoto Prefectural University of Medicine and Fukuoka University Chikushi Hospital. Vascular and surface patterns of tumors under BLI magnification were compared with those under NBI magnification, using a published NBI classification. The main outcome was the correlation between the NBI classification diagnosed by BLI or NBI magnification and the histopathological analyses.ResultsSixty-two cases of adenoma, 34 cases of intramucosal cancer and shallowly invaded submucosal cancer, and eight cases of deeply invaded submucosal cancer were diagnosed. The diagnostic accuracy of BLI magnification in the NBI classification was 74.0 % (77/104), similar to that of NBI magnification (77.8 %). The consistency rate between BLI and NBI magnification in the NBI classification was 74.0 %. Concerning image evaluation, the interobserver variability of two expert endoscopists (N.Y. and T.H.) in BLI magnification was κ = 0.863. On the other hand, the intraobserver variability of the two endoscopists was κ = 0.893 (N.Y.) and 0.851 (T.H.).ConclusionsBLI magnification by laser source could predict histopathological diagnosis and invasion depth of colorectal neoplasms. The diagnostic effectiveness of this method was similar to that of NBI magnification.
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32 schema:keywords BLI magnification
33 BackgroundFujifilm
34 Chikushi Hospital
35 ConclusionsBLI magnification
36 Fukuoka University Chikushi Hospital
37 Kyoto Prefectural University
38 MAIN OUTCOME
39 MethodsThis
40 NBI classification
41 NBI magnification
42 Prefectural University
43 ResultsSixty-two cases
44 University
45 University Chikushi Hospital
46 ability
47 accuracy
48 adenomas
49 aim
50 analysis
51 blue laser imaging
52 blue laser imaging system
53 cancer
54 cases
55 classification
56 colorectal neoplasms
57 comparison
58 consistency rate
59 correlation
60 depth
61 diagnosis
62 diagnostic accuracy
63 diagnostic effectiveness
64 effectiveness
65 endoscope system
66 endoscopists
67 evaluation
68 expert endoscopists
69 hand
70 histopathological analysis
71 histopathological diagnosis
72 hospital
73 image evaluation
74 imaging
75 imaging (NBI) magnification
76 imaging system
77 interobserver variability
78 intramucosal cancer
79 intraobserver variability
80 invasion depth
81 kind
82 kind of laser
83 laser
84 laser imaging
85 laser imaging system
86 laser source
87 light observations
88 magnification
89 medicine
90 method
91 multicenter open study
92 narrow-band imaging (NBI) magnification
93 narrow-band light observation
94 neoplasms
95 novel blue laser imaging system
96 novel endoscope system
97 observations
98 open study
99 outcomes
100 patterns
101 rate
102 source
103 study
104 submucosal cancer
105 surface patterns
106 system
107 total
108 tumors
109 variability
110 vascular
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