Evidence map›Paper›PMID 42442221›Full record

ArticleTranslational oncology2026

CT texture analysis and delta radiomics in predicting R0 resection after preoperative chemotherapy in resectable pancreatic ductal adenocarcinoma.

Riccardo De Robertis, Nicolò Cardobi, Flavio Spoto, Beatrice Mascarin, Anna Garofano, Simona Casalino, Alberto Quinzii, Giuseppe Malleo, Davide Melisi, Mirko D'Onofrio

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Article in Translational oncology, 2026. 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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1 · What the graph read from it

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4 · The record

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5 · Who and what money

Authors and funding

10 authors.

Riccardo De RobertisDepartment of Diagnostics and Public Health, Radiology Unit, University of Verona, G.B. Rossi Hospital, AOUI Verona, Verona, Italy.
Nicolò CardobiDepartment of Diagnostics and Public Health, Radiology Unit, University of Verona, G.B. Rossi Hospital, AOUI Verona, Verona, Italy.
Flavio SpotoDepartment of Radiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy. Electronic address: flaviospoto@univr.it.
Beatrice MascarinDepartment of Diagnostics and Public Health, Radiology Unit, University of Verona, G.B. Rossi Hospital, AOUI Verona, Verona, Italy.
Anna GarofanoDepartment of Diagnostics and Public Health, Radiology Unit, University of Verona, G.B. Rossi Hospital, AOUI Verona, Verona, Italy.
Simona CasalinoDepartment of Oncology, University of Verona, G.B. Rossi Hospital, AOUI Verona, Verona, Italy.
Alberto QuinziiDepartment of Oncology, University of Verona, G.B. Rossi Hospital, AOUI Verona, Verona, Italy.
Giuseppe MalleoUnit of Pancreatic Surgery, University of Verona Hospital Trust, G.B. Rossi Hospital, AOUI Verona, Verona, Italy.
Davide MelisiDepartment of Oncology, University of Verona, G.B. Rossi Hospital, AOUI Verona, Verona, Italy.
Mirko D'OnofrioDepartment of Diagnostics and Public Health, Radiology Unit, University of Verona, G.B. Rossi Hospital, AOUI Verona, Verona, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo evaluate the predictive performance of CT-based radiomic delta-features for predicting R0 resection in resectable pancreatic ductal adenocarcinoma (PDAC) following NALIRIFOX neoadjuvant chemotherapy. MATERIALS AND

methodsThis prospective study included 107 consecutive patients with resectable PDAC treated with NALIRIFOX. After applying strict selection criteria for imaging quality and timing, 55 patients underwent comprehensive radiomic analysis. Radiomic features were systematically extracted from pre-treatment and post-treatment CT scans, with delta-features calculated as percentage variations between timepoints. Features demonstrating inter-observer intraclass correlation coefficient greater than 0.90 in both arterial and venous phases were selected. Following correlation analysis to remove redundant features (absolute correlation greater than 0.80), three predictive models were developed based on pre-treatment, post-treatment, and delta-features. Model validation was performed using 1000-replication bootstrap methodology.

resultsSurgical resectability was achieved in 80.0% of cases, with R0 resection margins in 56.8% of operated patients. Seven radiomic features met reproducibility criteria: VolumeNum, Sphericity, Entropy, Contrast, Energy, SmallAreaEmphasis, and RunLengthNonUniformity. Energy was excluded due to high correlation with Contrast, resulting in six features. The delta-features model demonstrated superior performance (AUC=0.85, 95% CI: 0.78-0.91) compared to pre-treatment (AUC=0.76, p = 0.008) and post-treatment models (AUC=0.82, p = 0.042) for predicting R0 margins. Δ-VolumeNum emerged as the strongest independent predictor (OR=3.14, 95% CI: 1.89-5.21, p < 0.001), followed by Δ-Entropy (OR=2.45, 95% CI: 1.56-3.85, p < 0.001) and Δ-Contrast (OR=1.92, 95% CI: 1.24-2.97, p = 0.003).

conclusionRadiomic delta-features analysis provides a robust and non-invasive tool for predicting R0 resection following NALIRIFOX therapy, with dynamic measurements significantly outperforming static assessments in resectable PDAC.

Indexed as

Delta-featuresNalirifoxNeoadjuvant therapyPancreatic cancerRadiomicsTreatment response

Identifiers

PMID42442221
PMCPMC13382272

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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.