Back to Search
Start Over
Automated segmentation of liver and hepatic vessels on portal venous phase computed tomography images using a deep learning algorithm.
- Source :
-
Journal of applied clinical medical physics [J Appl Clin Med Phys] 2024 Aug; Vol. 25 (8), pp. e14397. Date of Electronic Publication: 2024 May 21. - Publication Year :
- 2024
-
Abstract
- Background: CT-image segmentation for liver and hepatic vessels can facilitate liver surgical planning. However, time-consuming process and inter-observer variations of manual segmentation have limited wider application in clinical practice.<br />Purpose: Our study aimed to propose an automated deep learning (DL) segmentation algorithm for liver and hepatic vessels on portal venous phase CT images.<br />Methods: This retrospective study was performed to develop a coarse-to-fine DL-based algorithm that was trained, validated, and tested using private 413, 52, and 50 portal venous phase CT images, respectively. Additionally, the performance of the DL algorithm was extensively evaluated and compared with manual segmentation using an independent clinical dataset of preoperative contrast-enhanced CT images from 44 patients with hepatic focal lesions. The accuracy of DL-based segmentation was quantitatively evaluated using the Dice Similarity Coefficient (DSC) and complementary metrics [Normalized Surface Dice (NSD) and Hausdorff distance&#95;95 (HD95) for liver segmentation, Recall and Precision for hepatic vessel segmentation]. The processing time for DL and manual segmentation was also compared.<br />Results: Our DL algorithm achieved accurate liver segmentation with DSC of 0.98, NSD of 0.92, and HD95 of 1.52 mm. DL-segmentation of hepatic veins, portal veins, and inferior vena cava attained DSC of 0.86, 0.89, and 0.94, respectively. Compared with the manual approach, the DL algorithm significantly outperformed with better segmentation results for both liver and hepatic vessels, with higher accuracy of liver and hepatic vessel segmentation (all p < 0.001) in independent 44 clinical data. In addition, the DL method significantly reduced the manual processing time of clinical postprocessing (p < 0.001).<br />Conclusions: The proposed DL algorithm potentially enabled accurate and rapid segmentation for liver and hepatic vessels using portal venous phase contrast CT images.<br /> (© 2024 The Author(s). Journal of Applied Clinical Medical Physics published by Wiley Periodicals LLC on behalf of American Association of Physicists in Medicine.)
- Subjects :
- Humans
Retrospective Studies
Male
Liver diagnostic imaging
Liver blood supply
Female
Middle Aged
Aged
Hepatic Veins diagnostic imaging
Adult
Prognosis
Deep Learning
Portal Vein diagnostic imaging
Tomography, X-Ray Computed methods
Algorithms
Image Processing, Computer-Assisted methods
Liver Neoplasms diagnostic imaging
Liver Neoplasms blood supply
Subjects
Details
- Language :
- English
- ISSN :
- 1526-9914
- Volume :
- 25
- Issue :
- 8
- Database :
- MEDLINE
- Journal :
- Journal of applied clinical medical physics
- Publication Type :
- Academic Journal
- Accession number :
- 38773719
- Full Text :
- https://doi.org/10.1002/acm2.14397