ArticleJournal of applied clinical medical physics2021
Evaluation of an ultrasound bladder scanner in supine and standing position.
Article in Journal of applied clinical medical physics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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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
4 citing papers in PubMed.
- Feasibility Study on Non-Invasive Methods for Bladder Biomechanics During Voiding Using Uro-Dynamic MRI.Bioengineering (Basel, Switzerland) · 2026Article
- A study on strategies to optimize bladder volume consistency in radiotherapy patients.European journal of medical research · 2025Article
- Optical Surface Management System and BladderScan for Patient Setup During Radiotherapy of Postoperative Prostate Cancer.BioMed research international · 2024Article
- Evaluation of an ultrasound bladder scanner in supine and standing position.Journal of applied clinical medical physics · 2021Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThis study examined the performance of a bladder volume measuring device, the BladderScan (BS) BVI9400. The use of the BS offers the possibility of assessing the bladder volume before positioning the patient and performing the daily image-guided radiotherapy procedure. Patients often cannot lie down before entering the treatment vault. Therefore, the BS was also assessed in a standing position.
methodsThe repeatability precision was first evaluated, which is the variability of immediate repeated measures of the BS with same operator and subject. This was followed by the reproducibility precision of the BS in which the operator and subjects differ. Finally, the trueness was evaluated in terms of fixed and proportional bias of the results by applying weighted least-squares fitting. Note that 53 and 85 patient measurements were carried out in supine and standing position, respectively, each consisting of three repeated BS measurements. These were compared with the computed tomography (CT)-delineated bladder volume.
resultsRepeatability was dependent on measurement value (heteroscedasticity) with σ
conclusionThe agreement of the BVI9400 BS with CT was found to be too low for radiotherapy applications.
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Registered trials
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