Evidence map›Paper›PMID 41220353›Full record

ArticleThe Canadian journal of urology2025

AI-driven radiogenomic analysis of clear cell renal cell carcinoma: perinephric adipose tissue stranding as a key feature of the NIPAL4-associated imaging pattern.

Federico Greco, Marco Cataldo, Valerio D'Andrea, Luca Pugliese, Andrea Panunzio, Alessandro Tafuri, Bruno Beomonte Zobel, Carlo Augusto Mallio

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Article in The Canadian journal of urology, 2025. 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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8 authors.

Federico GrecoDepartment of Radiology, Cittadella della Salute, Azienda Sanitaria Locale di Lecce, Piazza Filippo Bottazzi, 2, Lecce, 73100, Italy.
Marco CataldoApphia srl, via per Monteroni, Lecce, 73100, Italy.
Valerio D'AndreaResearch Unit of Radiology, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, Roma, 00128, Italy.
Luca PuglieseDepartment of Medical Surgical Sciences and Translational Medicine, Sapienza University of Rome, Radiology Unit, Sant'Andrea University Hospital, Via di Grottarossa, 1035-1039, Roma, 00189, Italy.
Andrea PanunzioDepartment of Urology, "Vito Fazzi" Hospital, Piazza Filippo Muratore, 1, Lecce, 73100, Italy.
Alessandro TafuriDepartment of Urology, "Vito Fazzi" Hospital, Piazza Filippo Muratore, 1, Lecce, 73100, Italy.
Bruno Beomonte ZobelResearch Unit of Radiology, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, Roma, 00128, Italy.
Carlo Augusto MallioResearch Unit of Radiology, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, Roma, 00128, Italy.

Funding

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6 · The paper itself

Abstract

backgroundRadiogenomics offers a non-invasive approach to correlate imaging features with tumor molecular profiles. This study aims to identify computed tomography (CT) imaging characteristics associated with positive NIPA-like domain containing 4 (NIPAL4) expression in clear cell renal cell carcinoma (ccRCC) and to develop a radiogenomic predictive model to support personalized risk stratification.

methodsA retrospective analysis was conducted on 241 ccRCC patients from The Cancer Genome Atlas (TCGA) and The Cancer Imaging Archive (TCIA) databases. Clinical, pathological, and CT features were compared between NIPAL4-positive and NIPAL4-negative groups. A penalized logistic regression model was built to predict NIPAL4 expression, and its performance was assessed using Receiver Operating Characteristic (ROC) and Decision Curve Analysis (DCA). Additionally, unsupervised K-means clustering was used to identify radiologic phenotypes, and a nomogram was developed to enable individualized risk estimation.

resultsAmong 241 ccRCC patients, 29 (12.03%) showed positive NIPAL4 expression. Compared to NIPAL4-negative cases, positive expression was significantly associated with larger tumor size (median 70.5 mm vs. 52 mm, p = 0.0371), ill-defined margins (61.5% vs. 32.4%, p = 0.0077), perinephric adipose tissue stranding (76.9% vs. 50.0%, p = 0.0114), renal vein thrombosis (24.0% vs. 4.7%, p = 0.021), Gerota's fascia thickening (61.5% vs. 35.2%, p = 0.0163), and collecting system invasion (52.0% vs. 26.5%, p = 0.0171). A multivariate penalized logistic regression model incorporating these features achieved an AUC of 0.973% and 92.1% accuracy in predicting NIPAL4 positivity.

conclusionsPositive NIPAL4 expression in ccRCC is significantly associated with aggressive CT features-particularly perinephric adipose tissue stranding, ill-defined margins, and renal vein thrombosis. A radiogenomic model based on these features achieved excellent predictive performance (AUC = 0.973), supporting its potential role in non-invasive risk stratification and personalized clinical decision-making.

Indexed as

Adipose TissueCarcinoma, Renal CellKidney NeoplasmsTomography, X-Ray ComputedAgedFemaleHumansMaleMiddle AgedNomogramsRetrospective Studiesadipose tissueclear cell renal cell carcinomacomputed tomographymagnesium ionNIPA-like domain containing 4 (NIPAL4)radiogenomics

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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.