Evidence map›Paper›PMID 30747299›Full record

ArticleEuropean radiology2019

Differentiating kidney stones from phleboliths in unenhanced low-dose computed tomography using radiomics and machine learning.

Thomas De Perrot, Jeremy Hofmeister, Simon Burgermeister, Steve P Martin, Gregoire Feutry, Jacques Klein, Xavier Montet

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In one paragraph

Article in European radiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 3 pooled it
3.8field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 3 syntheses or guidelines pooled it, 83 citations in OpenAlex.

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  18. Theranostic roles of machine learning in clinical management of kidney stone disease.Computational and structural biotechnology journal · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 2 countries.

Thomas De PerrotDivision of Radiology, Diagnostic Department, Geneva University Hospitals, Geneva, Switzerland. thomas.deperrot@hcuge.ch.ORCID http://orcid.org/0000-0001-8053-6064
Jeremy HofmeisterDivision of Radiology, Diagnostic Department, Geneva University Hospitals, Geneva, Switzerland.
Simon BurgermeisterDivision of Radiology, Diagnostic Department, Geneva University Hospitals, Geneva, Switzerland.
Steve P MartinDivision of Radiology, Diagnostic Department, Geneva University Hospitals, Geneva, Switzerland.
Gregoire FeutryDivision of Radiology, Diagnostic Department, Geneva University Hospitals, Geneva, Switzerland.
Jacques KleinDivision of Urology, Department of Surgery, Geneva University Hospitals, Geneva, Switzerland.
Xavier MontetDivision of Radiology, Diagnostic Department, Geneva University Hospitals, Geneva, Switzerland.
University Hospital of Geneva · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesDistinguishing between kidney stones and phleboliths can constitute a diagnostic challenge in patients undergoing unenhanced low-dose CT (LDCT) for acute flank pain. We sought to investigate the accuracy of radiomics and a machine-learning classifier in differentiating between kidney stones and phleboliths on LDCT.

methodsRadiomics features were extracted following a semi-automatic segmentation of kidney stones and phleboliths for two independent consecutive cohorts of patients undergoing LDCT for acute flank pain. Radiomics features from the first cohort of patients (n = 369) were ultimately used to train a machine-learning model designed to distinguish kidney stones (n = 211) from phleboliths (n = 201). Classification performance was assessed on the second independent cohort (i.e., testing set) (kidney stones n = 24; phleboliths n = 23) using positive and negative predictive values (PPV and NPV), area under the receiver operating curves (AUC), and permutation testing.

resultsOur machine-learning classification model trained on radiomics features achieved an overall accuracy of 85.1% on the independent testing set, with an AUC of 0.902, PPV of 81.5%, and NPV of 90.0%. Classification accuracy was significantly better than chance on permutation testing (p < 0.05, permutation p value).

conclusionRadiomics and machine learning enable accurate differentiation between kidney stones and phleboliths on LDCT in patients presenting with acute flank pain. KEY POINTS: • Combining a machine-learning algorithm with radiomics features extracted for abdominopelvic calcification on LDCT offers a highly accurate method for discriminating phleboliths from kidney stones. • Our radiomics and machine-learning model proved robust for CT acquisition and reconstruction protocol when tested in comparison with an external independent cohort of patients with acute flank pain. • The high performance of the radiomics-based automatic classification model in differentiating phleboliths from kidney stones indicates its potential as a future diagnostic tool for equivocal abdominopelvic calcifications in the setting of suspected renal colic.

Indexed as

Machine LearningAcute PainAdultAgedAged, 80 and overAlgorithmsDiagnosis, DifferentialFemaleFlank PainHumansKidney CalculiLithiasisMaleMiddle AgedTomography, X-Ray ComputedYoung AdultArtificial intelligenceLithiasisMachine learningUrinary tract

Identifiers

PMID30747299
OpenAlexW2911635295

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.