Evidence map›Paper›PMID 32269929›Full record

ArticleQuantitative imaging in medicine and surgery2020

Development and multicenter validation of a CT-based radiomics signature for discriminating histological grades of pancreatic ductal adenocarcinoma.

Na Chang, Lingling Cui, Yahong Luo, Zhihui Chang, Bing Yu, Zhaoyu Liu

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Article in Quantitative imaging in medicine and surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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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

30 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  13. EJNMMI research · 2023
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  18. Pancreatic cancer, radiomics and artificial intelligence.The British journal of radiology · 2022
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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

6 authors.

Na ChangDepartment of Radiology, Shengjing Hospital of China Medical University, Shenyang 110004, China.
Lingling CuiDepartment of Radiology, The First Affiliated Hospital of China Medical University, Shenyang 110001, China.
Yahong LuoDepartment of Radiology, Liaoning Cancer Institute and Hospital, Shenyang 110000, China.
Zhihui ChangDepartment of Radiology, Shengjing Hospital of China Medical University, Shenyang 110004, China.
Bing YuDepartment of Radiology, Shengjing Hospital of China Medical University, Shenyang 110004, China.
Zhaoyu LiuDepartment of Radiology, Shengjing Hospital of China Medical University, Shenyang 110004, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe histological grade of pancreatic cancer is an important independent predictor of outcome. However, we lack a method for safely and accurately obtaining the pathological grade before surgery. Radiomics has been used to discriminate between histological grades in tumors. We aimed to develop and validate a radiomics signature for the preoperative prediction of histological grades of pancreatic ductal adenocarcinoma (PDAC) that was based on contrast-enhanced computed tomography (CE-CT).

methodsThis study comprised 301 patients with pathologically confirmed PDAC who were randomly divided into a training (n=151) and test group (n=150). Radiomics features were selected by a support vector machine (SVM) model, and a radiomics signature was generated by the least absolute shrinkage and selection operator (LASSO) model. An additional 100 patients from 2 other medical centers were used for external validation. Receiver operating characteristic (ROC) curve analysis was used to assess the model and to identify the optimal cutoff value.

resultsThe radiomics signatures between high-grade and low-grade PDACs in the training and test groups were significantly different (P<0.05). The areas under the curve (AUCs) of the training and test datasets were 0.961 and 0.910, respectively. The optimal cutoff value of the radiomics score was 0.426. In the external validation dataset, the difference between the radiomics signatures of high-grade versus low-grade PDACs was also significant (P<0.05). The radiomics signature for the external validation data had an AUC of 0.770.

conclusionsThe CE-CT-based radiomics signature showed moderate predictive accuracy for differentiating low-grade from high-grade PDAC and should become a new noninvasive method for the preoperative prediction of histological grades of PDAC.

Indexed as

carcinoma, pancreatic ductalreceiver operating characteristic curve (ROC curve)support vector machine (SVM)Tomography, X-ray computed

Identifiers

PMID32269929
PMCPMC7136722

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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.