We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Evaluation of the visibility of early gastric cancer using linked color imaging and blue laser imaging.
- Authors
Yoshikazu Yoshifuku; Yoji Sanomura; Shiro Oka; Mio Kurihara; Takeshi Mizumoto; Tomohiro Miwata; Yuji Urabe; Toru Hiyama; Shinji Tanaka; Kazuaki Chayama; Yoshifuku, Yoshikazu; Sanomura, Yoji; Oka, Shiro; Kurihara, Mio; Mizumoto, Takeshi; Miwata, Tomohiro; Urabe, Yuji; Hiyama, Toru; Tanaka, Shinji; Chayama, Kazuaki
- Abstract
<bold>Background: </bold>Blue laser imaging (BLI) and linked color imaging (LCI) are the color enhancement features of the LASEREO endoscopic system, which provide a narrow band light observation function and expansion and reduction of the color information, respectively.<bold>Methods: </bold>We examined 82 patients with early gastric cancer (EGC) diagnosed between April 2014 and August 2015. Five expert and 5 non-expert endoscopists retrospectively compared images obtained on non-magnifying BLI bright mode (BLI-BRT) and LCI with those obtained via conventional white light imaging (WLI). Interobserver agreement was also assessed.<bold>Results: </bold>In experts' evaluation of the images, an improvement in visibility was observed in 73% (60/82) and 20% (16/82) of cases under LCI and BLI-BRT, respectively. In non-experts' evaluation of the images, an improvement in visibility was observed in 76.8% (63/82) and 24.3% (20/82) of cases under LCI and BLI-BRT, respectively. There were no significant differences between experts and non-experts in the evaluation of the images. The improvement in visibility was significantly higher with LCI than with BLI-BRT in experts and non-experts (p < 0.01). With regard to tumor color on WLI, the improvement in the visibility of reddish and whitish tumors was significantly higher than that of isochromatic tumors when LCI was used. The improvement in visibility with LCI was observed in 71% (12/17) and 74% (48/65) of patients with and without Helicobacter pylori (Hp) eradication, respectively; no significant difference in improvement was observed between these groups. The interobserver agreement was good to satisfactory at ≥ 0.62.<bold>Conclusions: </bold>In conclusion, our study showed that LCI improved the visibility of EGC, regardless of the level of endoscopists' experience or Hp eradication in patients, particularly for EGCs with a reddish or whitish color. The improvement in visibility was significantly higher with LCI than that with BLI.
- Subjects
STOMACH cancer patients; STOMACH cancer treatment; ENDOSCOPY; CLINICAL trials; ONCOLOGY
- Publication
BMC Gastroenterology, 2017, Vol 17, p1
- ISSN
1471-230X
- Publication type
journal article
- DOI
10.1186/s12876-017-0707-5