Evidence map›Paper›PMID 39477840›Full record

ArticleEuropean radiology experimental2024

Deep learning-based segmentation of kidneys and renal cysts on T2-weighted MRI from patients with autosomal dominant polycystic kidney disease.

Rémi Sore, Pascal Cathier, Anna Sesilia Vlachomitrou, Jérôme Bailleux, Karine Arnaud, Laurent Juillard, Sandrine Lemoine, Olivier Rouvière

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Article in European radiology experimental, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

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6citing papers in PubMed
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3 · Its place in the literature

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6 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Rémi SoreDepartment of Urinary and Vascular Imaging, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France.
Pascal CathierMedisys, Philips Research Paris, Paris, France.
Anna Sesilia VlachomitrouPhilips France, Suresnes, France.
Jérôme BailleuxDepartment of Urinary and Vascular Imaging, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France.
Karine ArnaudDepartment of Urinary and Vascular Imaging, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France.
Laurent JuillardService de Néphrologie, Dialyse et Exploration Fonctionnelle Rénale, Centre Référence Maladie Rénale Rare MAREGE, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France.
Sandrine LemoineService de Néphrologie, Dialyse et Exploration Fonctionnelle Rénale, Centre Référence Maladie Rénale Rare MAREGE, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France.
Olivier RouvièreDepartment of Urinary and Vascular Imaging, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France. olivier.rouviere@netcourrier.com.ORCID http://orcid.org/0000-0002-0030-478X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOur aim was to train and test a deep learning-based algorithm for automatically segmenting kidneys and renal cysts in patients with autosomal dominant polycystic kidney disease (ADPKD).

methodsWe retrospectively selected all ADPKD patients who underwent renal MRI with coronal T2-weighted imaging at our institution from 2008 to 2022. The 20 most recent examinations constituted the test dataset, to mimic pseudoprospective enrolment. The remaining ones constituted the training dataset to which eight normal renal MRIs were added. Kidneys and cysts ground truth segmentations were performed on coronal T2-weighted images by a junior radiologist supervised by an experienced radiologist. Kidneys and cysts of the 20 test MRIs were segmented by the algorithm and three independent human raters. Segmentations were compared using overlap metrics. The total kidney volume (TKV), total cystic volume (TCV), and cystic index (TCV divided by TKV) were compared using Bland-Altman analysis.

resultsWe included 164 ADPKD patients. Dice similarity coefficients ranged from 85.9% to 87.4% between the algorithms and the raters' segmentations and from 84.2% to 86.2% across raters' segmentations. For TCV assessment, the biases ± standard deviations (SD) were 3-19 ± 137-151 mL between the algorithm and the raters, and 22-45 ± 49-57 mL across raters. The algorithm underestimated TKV and TCV in two outliers with TCV > 2800 mL. For cystic index assessment, the biases ± SD were 2.5-6.9% ± 6.7-8.3% between the algorithm and the raters, and 2.1-9.4 ± 7.4-11.6% across raters.

conclusionThe algorithm's performance fell within the range of inter-rater variability, but large TKV and TCV were underestimated. RELEVANCE STATEMENT: Accurate automated segmentation of the renal cysts will enable the large-scale evaluation of the prognostic value of TCV and cystic index in ADPKD patients. If these biomarkers are prognostic, then automated segmentation will facilitate their use in daily routine. KEY POINTS: Cystic volume is an emerging biomarker in ADPKD. The algorithm's performance in segmenting kidneys and cysts fell within interrater variability. The segmentation of very large cysts, under-represented in the training dataset, needs improvement.

Indexed as

Deep LearningMagnetic Resonance ImagingPolycystic Kidney, Autosomal DominantAdultAgedFemaleHumansKidneyKidney Diseases, CysticMaleMiddle AgedRetrospective StudiesArtificial intelligenceCystsImage processing (computer-assisted)Magnetic resonance imagingPolycystic kidney diseases

Identifiers

PMID39477840
PMCPMC11525362

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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.