Can AI Automatically Assess Scan Quality of Hip Ultrasound?
APPLIED SCIENCES-BASEL(2022)
Abstract
Featured Application Our AI-based approach flags low-quality ultrasound hip images as inadequate for diagnosis. This would help sonographers to collect high-quality hip scans suitable for early diagnosis of DDH. Ultrasound images can reliably detect Developmental Dysplasia of the Hip (DDH) during early infancy. Accuracy of diagnosis depends on the scan quality, which is subjectively assessed by the sonographer during ultrasound examination. Such assessment is prone to errors and often results in poor-quality scans not being reported, risking misdiagnosis. In this paper, we propose an Artificial Intelligence (AI) technique for automatically determining scan quality. We trained a Convolutional Neural Network (CNN) to categorize 3D Ultrasound (3DUS) hip scans as 'adequate' or 'inadequate' for diagnosis. We evaluated the performance of this AI technique on two datasets-Dataset 1 (DS1) consisting of 2187 3DUS images in which each image was assessed by one reader for scan quality on a scale of 1 (lowest quality) to 5 (optimal quality) and Dataset 2 (DS2) consisting of 107 3DUS images evaluated semi-quantitatively by four readers using a 10-point scoring system. As a binary classifier (adequate/inadequate), the AI technique gave highly accurate predictions on both datasets (DS1 accuracy = 96% and DS2 accuracy = 91%) and showed high agreement with expert readings in terms of Intraclass Correlation Coefficient (ICC) and Cohen's kappa coefficient (K). Using our AI-based approach as a screening tool during ultrasound scanning or postprocessing would ensure high scan quality and lead to more reliable ultrasound hip examination in infants.
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Key words
hip,developmental dysplasia of the hip,3D ultrasound,scan quality assessment,deep learning,convolutional neural networks
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