Evidence map›Paper›PMID 41697559›Full record

ArticleInsights into imaging2026

CT-based subregional and peritumoral radiomics for predicting pathological T stage of clear cell renal cell carcinoma: an exploratory study of biological mechanisms.

Jun-Lin Huang, Qiao Liu, Cheng-Long Wang, Xuan Lang, Yu-Xi Zeng, Dai-Quan Zhou

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Article in Insights into imaging, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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0cells of the map it votes in
1citing papers in PubMed
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1 · What the graph read from it

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3 · Its place in the literature

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1 citing paper in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Jun-Lin Huang *Department of Radiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China.
Qiao LiuDepartment of Radiology, The Third Affiliated Hospital of Chongqing Medical University (Fangda Hospital), Chongqing, China. 652177@hospital.cqmu.edu.cn.ORCID http://orcid.org/0009-0009-9119-662X
Cheng-Long Wang *Department of Radiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China.
Xuan LangDepartment of Radiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China.
Yu-Xi ZengDepartment of Radiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China.
Dai-Quan ZhouDepartment of Radiology, The Third Affiliated Hospital of Chongqing Medical University (Fangda Hospital), Chongqing, China.

Funding

Internal Research Fund of The Third Affiliated Hospital of Chongqing Medical University Grant No. KY24041
6 · The paper itself

Abstract

objectivesTo evaluate intratumoral subregional and peritumoral radiomics for predicting pathological T stage of clear cell renal cell carcinoma (ccRCC), and investigate the biological mechanisms of radiomics. MATERIALS AND

methodsThis retrospective study included 323 ccRCC patients from two centers, divided into training (n = 148), internal test (n = 38), and external validation (n = 137) sets. Patients were stratified into low (T1 and T2, n = 222) and high (T3 and T4, n = 101) T stage groups. The tumors were segmented into different intratumoral subregions via the Gaussian mixture model (GMM). Radiomic features (RFs) were extracted from the whole tumor region (VOI_whole), intratumoral subregions (VOI_subx), and the peritumoral region (VOI_peri). Several machine learning (ML) models and radiomic score (Radscore) were developed to predict pathological T stage and prognosis of ccRCC. Radiogenomics analysis was used to explore the relationship between radiomics and biologic pathways.

resultsTwo intratumoral subregions were segmented. The support vector machine (SVM)-based combined model, constructed using RFs from VOI_sub1 and VOI_peri, achieved the highest AUC values, of 0.82 (95% CI: 0.68-0.96) and 0.80 (95% CI: 0.71-0.88) in the internal test and external validation sets, respectively. A higher Radscore was correlated with poorer overall survival (OS) (p < 0.001). Radiogenomics analysis revealed that radiomics was associated with extracellular matrix remodeling, vesicle transport, protein processing in the endoplasmic reticulum, and the Hippo signaling pathway.

conclusionsAn ML model combining intratumoral subregion and peritumoral RFs showed good performance in predicting the pathological T stage of ccRCC, and these RFs were associated with biological pathways underlying tumor invasion. CRITICAL RELEVANCE STATEMENT: This study develops a validated CT-radiomics model (intratumoral subregions + peritumoral) predicting ccRCC T stage. The prognostic Radscore links to invasion biology (ECM remodeling, Hippo/ER dysregulation), enabling clinical translation. KEY POINTS: Subregional and peritumoral radiomics models accurately predicted ccRCC (clear cell renal cell carcinoma) histological T stage. Radiomics score identified that high-risk ccRCC patients had poorer overall survival. Predictive radiomic features (RFs) were associated with biological pathways underlying tumor invasion.

Indexed as

Biological mechanismsClear cell renal cell carcinomaMachine learningPathological T stageRadiomics

Identifiers

PMID41697559
PMCPMC12909736

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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.