ArticleClinical endoscopy2022
Comparison of tube-assisted mapping biopsy with digital single-operator peroral cholangioscopy for preoperative evaluation of biliary tract cancer.
Article in Clinical endoscopy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
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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.
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Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Clinical Practice Guidelines for Peroral Cholangioscopy.Journal of hepato-biliary-pancreatic sciences · 2026Guideline
- A novel sheath system to improve target access for preoperative mapping biopsy: A randomized trial to inform surgical planning.Surgical endoscopy · 2026Trial
- Utility of a novel sheath designed for mapping biopsy for preoperative malignant hilar biliary obstruction.Endoscopy international open · 2026Article
- Dose Performing Multiple Biopsy Strokes From the Same Site Improve Specimen Adequacy in Cholangioscopy-Guided Mapping Biopsy for Extrahepatic Cholangiocarcinoma?JGH open : an open access journal of gastroenterology and hepatology · 2025Article
- Utility of a novel tapered-tip sheath system for preoperative mapping biopsy of biliary tract cancers.Endoscopy international open · 2025Article
- Endoscopic evaluation of indeterminate biliary strictures: Cholangioscopy, endoscopic ultrasound, or both?Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society · 2024Review
Corrections and comments
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND/
aimsDigital single-operator cholangioscopy (DSOC)-guided mapping biopsy (DMB) and tube-assisted mapping biopsy (TMB) are two techniques used for preoperative evaluation of biliary tract cancer (BTC). However, data regarding the diagnostic performance of these techniques are limited.
methodsWe retrospectively examined consecutive patients with BTC who underwent either technique at our institution between 2018 and 2020. We evaluated the technical success rate, adequate tissue acquisition rate, and diagnostic performance of these techniques for the evaluation of lateral spread of BTC.
resultsA total of 54 patients were included in the study. The technical success rate of reaching the target sites was 95% for DMB and 100% for TMB. The adequate tissue acquisition rate was 61% for DMB and 69% for TMB. The adequate tissue acquisition rate was low, especially for target sites beyond the secondary biliary radicles. The sensitivity of DMB alone was 39%, which improved to 65% when combined with visual impression. Experts demonstrated a higher negative predictive value and diagnostic accuracy with respect to both DSOC visual impression and DMB for the evaluation of lateral spread of BTC compared to trainees.
conclusionAdequate tissue acquisition rates were similar between the two techniques. Since DMB requires expertise, TMB may be an acceptable option when DSOC is unavailable or when DSOC expertise is limited.
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