Evidence map›Paper›PMID 42395109›Full record

ArticleWorld journal of radiology2026

Approximation of urinary bladder volume with few measurements on cross-sectional imaging.

Robert Nelson, Celine Torkzad, Dallas Sturdevant, Pardeep K Mittal, Michael R Torkzad

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Article in World journal of radiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Robert NelsonDepartment of Radiology and Imaging, Medical College of Georgia, Wellstar MCG Health, Augusta University, Augusta, GA 30912, United States.
Celine TorkzadSt Johns Country Day School, Fleming Island, FL 32003, United States.
Dallas SturdevantDepartment of Radiology and Imaging, Medical College of Georgia, Wellstar MCG Health, Augusta University, Augusta, GA 30912, United States.
Pardeep K MittalDivision of Abdominal and Pelvic Radiology, Department of Radiology and Imaging, Medical College of Georgia, Wellstar MCG Health, Augusta University, Augusta, GA 30912, United States.
Michael R TorkzadDivision of Abdominal and Pelvic Radiology, Department of Radiology and Imaging, Medical College of Georgia, Wellstar MCG Health, Augusta University, Augusta, GA 30912, United States. mtorkzad@augusta.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAccurate estimation of urinary bladder volume (UBV) is important for diagnosing and managing bladder disorders. Computed tomography (CT) is often used as a reference standard; however, existing measurement methods vary in complexity and efficiency.

aimTo determine whether UBV can be accurately estimated on CT using a single sagittal measurement compared with multidimensional measurements and reference volumetric analysis.

methodsCT abdomen-pelvis studies of 80 individuals without urinary tract pathology were retrospectively analyzed. Bladder volume was determined using manual volumetric tracing as the reference standard. Sagittal long axis [sagittal length (SL)], sagittal short axis [sagittal short (SS)], and transverse diameter [right-to-left (RL)] were measured, and single- and multidimensional products (SL, SL × SS, SL × SS × RL) were correlated with reference volume using Pearson correlation coefficients. Linear regression models were derived, and agreement was assessed using Bland-Altman analysis.

resultsSL demonstrated the strongest single-dimension correlation with bladder volume (

conclusionUBV can be accurately estimated using a single sagittal CT measurement in healthy individuals. This simplified approach provides a rapid and reproducible alternative to multidimensional methods without meaningful loss of accuracy and may serve as a reference standard for validating ultrasound-based bladder volume estimation.

Indexed as

Bladder volume estimationComputed tomographyCross-sectional imagingSagittal measurementUrinary bladder volumeVolumetric analysis

Identifiers

PMID42395109
PMCPMC13324714

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