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Record W2027097693 · doi:10.5489/cuaj.1336

Estimating renal volume from CT: Is this the easiest way?

2013· article· en· W2027097693 on OpenAlexvenueno aff
Hwang Gyun Jeon

Bibliographic record

VenueCanadian Urological Association Journal · 2013
Typearticle
Languageen
FieldMedicine
TopicMRI in cancer diagnosis
Canadian institutionsnot available
Fundersnot available
KeywordsVolume (thermodynamics)Computer scienceMedicinePhysics

Abstract

fetched live from OpenAlex

e congratulate Breau and colleagues for demonstrating that there was good correlation between renal volume as measured by two techniques: the ellipsoid method and 3D volume measurement using specialized volumetric software with contrast-enhanced CT scans. 1 The authors found that the ellipsoid method underestimated 3D volume (170 cm 3 vs.186 cm 3 , respectively), but that almost all were accurate 30%; they also concluded that measuring renal volume is easy and reliable.They also suggested that 3D volume software is not needed for the estimation of differential renal function.Other authors previously showed that the modified ellipsoid method can be performed quickly with high reproducibility and accuracy.2 They showed that the intraclass correlation coefficient (ICC) was higher (r = 0.95) in this study.However, we believe that the correlation between observers using the ellipsoid method is somewhat inferior to that of the method using 3D analysis software.Previously, we reported an ICC of 0.995 in donor patients, meaning that renal volume measurement by the 3D analysis software is highly reproducible and accurate.3 We believe that the ellipsoid method can only be used to measure split renal function in renal donors.In patients with renal masses or nonfunctional tissues, such as renal cysts, it is impossible to measure normally functioning renal parenchyma using the ellipsoid method.In addition, the correlation between two estimated renal volume and DTPA kidney scintigraphy was not shown in this study by Breau and colleagues. 1 The question thus remains as to which result is more correlated with renal function.With advancements and improvements in software and imaging modalities, renal volume can be easily measured

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.016
metaresearch head score (Gemma)0.080
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.016
Threshold uncertainty score0.085

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0160.080
Meta-epidemiology (narrow)0.0020.001
Meta-epidemiology (broad)0.0030.001
Bibliometrics0.0040.001
Science and technology studies0.0010.003
Scholarly communication0.0040.018
Open science0.0040.002
Research integrity0.0090.012
Insufficient payload (model declined to judge)0.0080.011

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.016
GPT teacher head0.234
Teacher spread0.219 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations1
Published2013
Admission routes1
Has abstractyes

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