Red dichromatic imaging helps in detecting exposed blood vessels in gastric ulcer induced by endoscopic submucosal dissection

Miyamoto, Shuichi; Sugiura, Ryo; Abiko, Satoshi; Hatanaka, Kazuteru; Yamamoto, Yoshiya; Naruse, Hirohito; Sakamoto, Naoya

doi:10.1055/a-1314-9714

Cited by 11 publications

(10 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The utility of RDI for the identification and management of GI bleeding has been demonstrated in several case reports. 6 , 7 , 8 , 9 In the present study, RDI helped in identification of the bleeding site, enabling prompt hemostasis in 1 attempt in the majority of cases ( Fig. 4 ).…”

Section: Discussionmentioning

confidence: 55%

Endoscopic submucosal dissection and tunneling procedures using novel image-enhanced technique

et al. 2022

View full text Add to dashboard Cite

Background and Aims: Recent innovations in image-enhanced endoscopy allow early detection and management of GI lesions. In this study, we aim to analyze the utility of texture and color enhancement imaging (TXI) and red dichromatic imaging (RDI) during endoscopic submucosal dissection (ESD) and submucosal tunneling procedures.Methods: Patients who underwent ESD, submucosal tunneling endoscopic resection, and peroral endoscopic myotomy (POEM) using the novel imaging technique including TXI and RDI were included in the study.Results: Twenty-five patients (13 male; age 43 AE 15.69 years) underwent POEM for achalasia (n Z 20), submucosal tunneling endoscopic resection for esophageal subepithelial lesions (n Z 3), and ESD for gastric neuroendocrine tumors (n Z 2). All of the procedures were successfully performed. Mean procedure duration was 55.52 AE 21.61 minutes. TXI mode was used in all the cases, whereas RDI mode was used on 15 occasions. While using RDI mode, hemostasis was achieved in 1 attempt on 12 (80%) occasions. The site of mucosal incision was revised in 3 cases during POEM based on TXI and RDI modes.Conclusions: Submucosal tunneling and endoscopic dissection procedures can be conveniently performed using a new image-enhanced technique. RDI is useful in localizing the site of bleeding during endoscopic dissection.

show abstract

Section: Discussionmentioning

confidence: 55%

Endoscopic submucosal dissection and tunneling procedures using novel image-enhanced technique

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The narrow-band light of 600 nm wavelength highlights the difference in blood concentration and/or its volume because of the light absorption features of the hemoglobin. The center and circumference of the bleeding point appears in clear contrast because they contain different amounts of hemoglobin and accordingly absorb and reflect differential levels of 600 nm light[ 6 , 7 ]. This means that more light is reflected from the center and less from the circumference.…”

Section: Discussionmentioning

confidence: 99%

Visibility of the bleeding point in acute rectal hemorrhagic ulcer using red dichromatic imaging: A case report

Hirai¹,

Kayashima²,

Nakazato³

et al. 2021

WJGE

View full text Add to dashboard Cite

BACKGROUND Red dichromatic imaging (RDI) is a novel image-enhanced endoscopy expected to improve the visibility of the bleeding point. However, it has not been thoroughly investigated. CASE SUMMARY A 91-year-old man developed a sudden massive hematochezia and underwent emergent colonoscopy. An ulcer with pulsatile bleeding was found on the lower rectum. Due to massive bleeding, the exact location of the bleeding point was not easy to detect with white light imaging (WLI). Upon switching to RDI, the bleeding point appeared in deeper yellow compared to the surrounding blood. Thus, RDI enabled us for easier recognition of the bleeding point, and hemostasis was achieved successfully. Furthermore, we reviewed endoscopic images and evaluated the color difference between the bleeding point and surrounding blood for WLI and RDI. In our case, the color difference of RDI was greater than that of WLI (9. 75 vs 6. 61), and RDI showed a better distinguished bleeding point from the surrounding blood. CONCLUSION RDI may improve visualization of the bleeding point by providing better contrast in color difference relative to surrounding blood.

show abstract

“…3 As of 2020, RDI is integrated as a new function in the latest endoscopic models (EVIS X1). 4,5 RDI was found to improve the visibility of bleeding points in a retrospective study of a small number of gastric ESD cases 6 (Fig. 2).…”

Section: Introductionmentioning

confidence: 92%

Clinical usefulness of red dichromatic imaging in hemostatic treatment during endoscopic submucosal dissection: First report from a multicenter, open‐label, randomized controlled trial

Fujimoto

Saito

Abe

et al. 2021

Digestive Endoscopy

View full text Add to dashboard Cite

Objectives: To verify the efficacy and safety of red dichromatic imaging (RDI) in hemostatic procedures during endoscopic submucosal dissection (ESD).Methods: This is a multicenter randomized controlled trial of 404 patients who underwent ESD of the esophagus, stomach, colorectum. Patients who received hemostatic treatments by RDI during ESD were defined as the RDI group (n = 204), and those who received hemostatic treatments by white light imaging (WLI) were defined as the WLI group (n = 200). The primary endpoint was a shortening of the hemostasis time. The secondary endpoints were a reduction of the psychological stress experienced by the endoscopist during the hemostatic treatment, a shortened treatment time, and a non-inferior perforation rate, in RDI versus WLI. Results:The mean hemostasis time in RDI (n = 860) was not significantly shorter than that in WLI (n = 1049) (62.3 AE 108.1 vs. 56.2 AE 74.6 s; P = 0.921). The median hemostasis time was significantly longer in RDI than in ] vs. 28.0 [14.0-66.0] s; P = 0.001) in a sensitivity analysis. The psychological stress was significantly lower in RDI than in WLI (1.71 AE 0.935 vs. 2.03 AE 1.038; P < 0.001). There was no significant difference in the ESD treatment time between RDI (n = 161) and WLI (n = 168) (58.0 [35.0-86.0] vs. 60.0 [38.0-88.5] min; P = 0.855). Four perforations were observed, but none of them took place during the hemostatic treatment.Conclusions: Hemostatic treatment using RDI does not shorten the hemostasis time. RDI, however, is safe to use for hemostatic procedures and reduces the psychological stress experienced by endoscopists when they perform hemostatic treatment during ESD.UMIN000025134.

show abstract

Red dichromatic imaging helps in detecting exposed blood vessels in gastric ulcer induced by endoscopic submucosal dissection

Abstract: Red dichromatic imaging helps in detecting exposed blood vessels in gastric ulcer induced by endoscopic submucosal dissection ▶ Fig. 1 Endoscopic submucosal dissection (ESD)-induced ulcer. a Observed using white light. b Observed using red dichromatic imaging.

Cited by 11 publications

References 5 publications

Endoscopic submucosal dissection and tunneling procedures using novel image-enhanced technique

Endoscopic submucosal dissection and tunneling procedures using novel image-enhanced technique

Visibility of the bleeding point in acute rectal hemorrhagic ulcer using red dichromatic imaging: A case report

Clinical usefulness of red dichromatic imaging in hemostatic treatment during endoscopic submucosal dissection: First report from a multicenter, open‐label, randomized controlled trial

Contact Info

Product

Resources

About