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Radiomics Analysis of MR Imaging with Gd-EOB-DTPA for Preoperative Prediction of Microvascular Invasion in Hepatocellular Carcinoma: Investigation and Comparison of Different Hepatobiliary Phase Delay Times
- Source :
- BioMed Research International, Vol 2021 (2021), BioMed Research International
- Publication Year :
- 2021
- Publisher :
- Hindawi Limited, 2021.
-
Abstract
- Purpose. To investigate whether the radiomics analysis of MR imaging in the hepatobiliary phase (HBP) can be used to predict microvascular invasion (MVI) in patients with hepatocellular carcinoma (HCC). Method. A total of 130 patients with HCC, including 80 MVI-positive patients and 50 MVI-negative patients, who underwent MR imaging with Gd-EOB-DTPA were enrolled. Least absolute shrinkage and selection operator (LASSO) regression was applied to select radiomics parameters derived from MR images obtained in the HBP 5 min, 10 min, and 15 min images. The selected features at each phase were adopted into support vector machine (SVM) classifiers to establish models. Multiple comparisons of the AUCs at each phase were performed by the Delong test. The decision curve analysis (DCA) was used to analyze the classification of MVI-positive and MVI-negative patients. Results. The most predictive features between MVI-positive and MVI-negative patients included 9, 8, and 14 radiomics parameters on HBP 5 min, 10 min, and 15 min images, respectively. A model incorporating the selected features produced an AUC of 0.685, 0.718, and 0.795 on HBP 5 min, 10 min, and 15 min images, respectively. The predictive model for HBP 5 min, 10 min and 15 min showed no significant difference by the Delong test. DCA indicated that the predictive model for HBP 15 min outperformed the models for HBP 5 min and 10 min. Conclusions. Radiomics parameters in the HBP can be used to predict MVI, with the HBP 15 min model having the best differential diagnosis ability.
- Subjects :
- Gadolinium DTPA
Male
Carcinoma, Hepatocellular
Article Subject
Gd-EOB-DTPA
General Biochemistry, Genetics and Molecular Biology
030218 nuclear medicine & medical imaging
Diagnosis, Differential
03 medical and health sciences
0302 clinical medicine
Text mining
Radiomics
medicine
Humans
In patient
Aged
Retrospective Studies
Neovascularization, Pathologic
General Immunology and Microbiology
business.industry
Liver Neoplasms
General Medicine
Middle Aged
medicine.disease
Magnetic Resonance Imaging
Mr imaging
Liver
Decision curve analysis
Hepatocellular carcinoma
Microvessels
Hepatobiliary phase
Radiographic Image Interpretation, Computer-Assisted
Medicine
Female
030211 gastroenterology & hepatology
business
Nuclear medicine
Research Article
Subjects
Details
- Language :
- English
- ISSN :
- 23146141 and 23146133
- Volume :
- 2021
- Database :
- OpenAIRE
- Journal :
- BioMed Research International
- Accession number :
- edsair.doi.dedup.....d1f8adaf5a5dc33d6e7259e9126ff7d9