ArticleJournal of biomedical optics2021
Virtual scale function of gastrointestinal endoscopy for accurate polyp size estimation in real-time: a preliminary study.
Article in Journal of biomedical optics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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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.
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.
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Who cites it
9 citing papers in PubMed, 32 citations in OpenAlex.
- Polyp size measurement during colonoscopy using a virtual scale: variability and systematic differences.Endoscopy · 2025Trial
- Colorectal Polyp Size Measurement Faces Infinite Possibilities: Artificial Intelligence Is the Key.Digestion · 2026Review
- Recent advancement in size measurement during endoscopy.Clinical endoscopy · 2026Review
- A Novel Digital Method for Accurate Endoscopic Size Measurement of Gastric Lesions: A Comparative Study With Visual and Forceps-Assisted Estimation.Journal of gastric cancer · 2025Article
- Article
- Measuring polyp size using a virtual scale endoscope: a video tutorial with clinical case demonstration.Endoscopy · 2023Article
- Advances in artificial intelligence and computer science for computer-aided diagnosis of colorectal polyps: current status.Endoscopy international open · 2023Review
- Comparing size measurement of colorectal polyps using a novel virtual scale endoscope, endoscopic ruler or forceps: A preclinical randomized trial.Endoscopy international open · 2023Article
- Need for careful endoscopic evaluation of large gastric neoplasms before endoscopic submucosal dissection.Clinical endoscopy · 2022Article
Corrections and comments
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
significancePolyp size is important for selecting the surveillance interval or treatment policy. Nevertheless, it is challenging to accurately estimate the polyp size during endoscopy. An easy and cost-effective function to assist in polyp size estimation is required.
aimTo propose a virtual scale function for endoscopy and evaluate its performance and expected accuracy. APPROACH: An adaptive virtual scale behavior was demonstrated. The measurement error of the virtual scale along the distance between the tip of the endoscope and the object plane was evaluated using graph paper. The accuracy of polyp size estimation by an expert endoscopist was compared with the accuracy of the biopsy forceps method using phantom images.
resultsThe measurement errors of the virtual scale were ≤ 0.7 mm when the distance to the graph paper, which faced the tip of the endoscope, varied from 4 to 30 mm. The accuracy with the virtual scale was significantly higher than that obtained with biopsy forceps (5.3 ± 5.5 % versus 11.9 ± 9.4 % , P < 0.001).
conclusionsThe virtual scale function, which operates in real-time without any additional device, can be used to estimate polyp sizes easily and accurately with endoscopy.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.