Improved visibility of palisade vessels within Barrett’s esophagus using red dichromatic imaging: a retrospective cross-sectional study in Japan
- Author:
Chise UEDA
1
;
Shinwa TANAKA
;
Tetsuya YOSHIZAKI
;
Hirofumi ABE
;
Masato KINOSHITA
;
Hiroya SAKAGUCHI
;
Hiroshi TAKAYAMA
;
Hitomi HORI
;
Ryosuke ISHIDA
;
Shinya HOUKI
;
Hiroshi TANABE
;
Eri NISHIKAWA
;
Madoka TAKAO
;
Toshitatsu TAKAO
;
Yoshinori MORITA
;
Takashi TOYONAGA
;
Yuzo KODAMA
Author Information
- Publication Type:Original Article
- From:Clinical Endoscopy 2025;58(2):269-277
- CountryRepublic of Korea
- Language:English
-
Abstract:
Background/Aims:Visualization of palisade vessels (PVs) in Barrett’s esophagus is crucial for proper assessment. This study aimed to determine whether red dichromatic imaging (RDI) improves PV visibility compared with white-light imaging (WLI) and narrow-band imaging (NBI).
Methods:Five expert and trainee endoscopists evaluated the PV visibility in Barrett’s esophagus using WLI, NBI, and RDI on 66 images from 22 patients. Visibility was rated on a 4-point scale: 4, excellent; 3, good; 2, fair; and 1, poor. The color difference between the most recognizable PV spots and surrounding areas with undetectable blood vessels was also analyzed.
Results:Mean visibility scores were 2.6±0.7, 2.3±0.6, and 3.4±0.4 for WLI, NBI, and RDI, respectively. The RDI scores were significantly higher than the WLI (p<0.001) and NBI (p<0.001) scores. These differences were recognized by trainees and expert endoscopists. Color differences in PVs were 7.74±4.96 (WLI), 10.43±5.09 (NBI), and 15.1±6.54 (RDI). The difference in RDI was significantly higher than that in WLI (p<0.001) and NBI (p=0.006).
Conclusions:RDI significantly improved PV visibility compared to WLI and NBI based on objective and subjective measures.
