Abstract:
BACKGROUND:The diagnosis performance of B-mode ultrasound (US) for focal liver lesions (FLLs) is relatively limited. We aimed to develop a deep convolutional neural network of US (DCNN-US) for aiding radiologists in classification of malignant from benign FLLs. MATERIALS AND METHODS:This study was conducted in 13 hospitals and finally 2143 patients with 24,343 US images were enrolled. Patients who had non-cystic FLLs with pathological results were enrolled. The FLLs from 11 hospitals were randomly divided into training and internal validations (IV) cohorts with a 4:1 ratio for developing and evaluating DCNN-US. Diagnostic performance of the model was verified using external validation (EV) cohort from another two hospitals. The diagnosis value of DCNN-US was compared with that of contrast enhanced computed tomography (CT)/magnetic resonance image (MRI) and 236 radiologists, respectively. FINDINGS:The AUC of ModelLBC for FLLs was 0.924 (95% CI: 0.889-0.959) in the EV cohort. The diagnostic sensitivity and specificity of ModelLBC were superior to 15-year skilled radiologists (86.5% vs 76.1%, p = 0.0084 and 85.5% vs 76.9%, p = 0.0051, respectively). Accuracy of ModelLBC was comparable to that of contrast enhanced CT (both 84.7%) but inferior to contrast enhanced MRI (87.9%) for lesions detected by US. INTERPRETATION:DCNN-US with high sensitivity and specificity in diagnosing FLLs shows its potential to assist less-experienced radiologists in improving their performance and lowering their dependence on sectional imaging in liver cancer diagnosis.
journal_name
EBioMedicinejournal_title
EBioMedicineauthors
Yang Q,Wei J,Hao X,Kong D,Yu X,Jiang T,Xi J,Cai W,Luo Y,Jing X,Yang Y,Cheng Z,Wu J,Zhang H,Liao J,Zhou P,Song Y,Zhang Y,Han Z,Cheng W,Tang L,Liu F,Dou J,Zheng R,Yu J,Tian J,Liang Pdoi
10.1016/j.ebiom.2020.102777subject
Has Abstractpub_date
2020-06-01 00:00:00pages
102777issn
2352-3964pii
S2352-3964(20)30152-3journal_volume
56pub_type
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