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CT based automatic clinical target volume delineation using a dense-fully connected convolution network for cervical Cancer radiation therapy
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CT based automatic clinical target volume delineation using a dense-fully connected convolution network for cervical Cancer radiation therapy
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CT based automatic clinical target volume delineation using a dense-fully connected convolution network for cervical Cancer radiation therapy
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Journal Article
CT based automatic clinical target volume delineation using a dense-fully connected convolution network for cervical Cancer radiation therapy
2021
Overview
Background
It is very important to accurately delineate the CTV on the patient’s three-dimensional CT image in the radiotherapy process. Limited to the scarcity of clinical samples and the difficulty of automatic delineation, the research of automatic delineation of cervical cancer CTV based on CT images for new patients is slow. This study aimed to assess the value of Dense-Fully Connected Convolution Network (Dense V-Net) in predicting Clinical Target Volume (CTV) pre-delineation in cervical cancer patients for radiotherapy.
Methods
In this study, we used Dense V-Net, a dense and fully connected convolutional network with suitable feature learning in small samples to automatically pre-delineate the CTV of cervical cancer patients based on computed tomography (CT) images and then we assessed the outcome. The CT data of 133 patients with stage IB and IIA postoperative cervical cancer with a comparable delineation scope was enrolled in this study. One hundred and thirteen patients were randomly designated as the training set to adjust the model parameters. Twenty cases were used as the test set to assess the network performance. The 8 most representative parameters were also used to assess the pre-sketching accuracy from 3 aspects: sketching similarity, sketching offset, and sketching volume difference.
Results
The results presented that the DSC, DC/mm, HD/cm, MAD/mm, ∆V, SI, IncI and JD of CTV were 0.82 ± 0.03, 4.28 ± 2.35, 1.86 ± 0.48, 2.52 ± 0.40, 0.09 ± 0.05, 0.84 ± 0.04, 0.80 ± 0.05, and 0.30 ± 0.04, respectively, and the results were greater than those with a single network.
Conclusions
Dense V-Net can correctly predict CTV pre-delineation of cervical cancer patients and can be applied in clinical practice after completing simple modifications.
Publisher
BioMed Central,BioMed Central Ltd,Springer Nature B.V,BMC
Subject
/ Biomedical and Life Sciences
/ Cervix
/ Cervix Uteri - diagnostic imaging
/ Convolutional neural network
/ Female
/ Health Promotion and Disease Prevention
/ Humans
/ Methods
/ Oncology
/ post-genomic analysis and emerging technologies
/ Radiotherapy Planning, Computer-Assisted - methods
/ Radiotherapy, Adjuvant - methods
/ Software
/ Uterine Cervical Neoplasms - diagnosis
