Evidence map›Paper›PMID 26716118›Full record

ArticleEndoscopy international open2015

A significant feature of microvessels in magnifying narrow-band imaging for diagnosis of early gastric cancer.

Takashi Kanesaka, Noriya Uedo, Kenshi Yao, Yasumasa Ezoe, Hisashi Doyama, Ichiro Oda, Kazuhiro Kaneko, Yoshiro Kawahara, Chizu Yokoi, Yasushi Sugiura and 5 more

Abstract read
In one paragraph

Article in Endoscopy international open, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors.

Takashi KanesakaDepartment of Gastrointestinal Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan.
Noriya UedoDepartment of Gastrointestinal Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan.
Kenshi YaoDepartment of Endoscopy, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Yasumasa EzoeDepartment of Therapeutic Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Hisashi DoyamaDepartment of Gastroenterology, Ishikawa Prefectural Central Hospital, Ishikawa, Japan.
Ichiro OdaEndoscopy Division, National Cancer Center Hospital, Tokyo, Japan.
Kazuhiro KanekoDepartment of Gastroenterology, Endoscopy Division, National Cancer Center Hospital East, Chiba, Japan.
Yoshiro KawaharaDivision of Endoscopy, Okayama University, Okayama, Japan.
Chizu YokoiEndoscopy Division, National Center for Global Health and Medicine, Tokyo, Japan.
Yasushi SugiuraDivision of Gastroenterology and Hepatology, Kitano Hospital, Osaka, Japan.
Hideki IshikawaDepartment of Molecular Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Minoru KatoDepartment of Gastrointestinal Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan.
Yoji TakeuchiDepartment of Gastrointestinal Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan.
Manabu MutoDepartment of Therapeutic Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Yutaka SaitoEndoscopy Division, National Cancer Center Hospital, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND STUDY

aimsMagnifying narrow-band imaging (NBI) is more useful than conventional endoscopy for diagnosing early gastric cancer (EGC). However, evaluation of irregular microvascular patterns is subjective and is often difficult, even with expert eyes. The aim of this study was to clarify the most important microvascular patterns in magnifying NBI for diagnosis of EGC. PATIENTS AND

methodsThis was a post-hoc analysis of a multicenter prospective trial among nine Japanese hospitals. A total of 1353 patients underwent screening with white-light endoscopy and 362 patients had small (≤ 10 mm) depressed lesions. They were randomly assigned to magnifying NBI or white-light endoscopy followed by magnifying NBI. During diagnosis, magnifying NBI images were recorded before biopsy. All magnifying NBI images were reviewed and evaluated for the association of four features of microvessels - that is, dilation, tortuosity, difference in caliber, and variation in shape - with cancer diagnosis.

resultsImages of 343 lesions (40 cancerous and 303 benign depression lesions) were evaluable. The diagnostic performance (sensitivity/specificity) of each finding was: dilation, 25/90 %; tortuosity, 55/24 %; difference in caliber, 13 /99 %; and variation in shape, 70/95 %. Multivariate analysis identified only variation in shape as being statistically significantly associated with diagnosis of cancer (odds ratio 38.0, 95 % confidence interval: 16.1 - 95.7, P < 0.001). All findings showed moderate agreement (κ values): dilation, 0.44; tortuosity, 0.33; difference in caliber, 0.26; and variation in shape, 0.48.

conclusionsA variation in shape was the most significant feature of microvessels observed in magnifying NBI for diagnosis of small depressed-type EGC. STUDY REGISTRATION: UMIN-CTR000001072.

Identifiers

PMID26716118
PMCPMC4683127

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