Artificial Intelligence for Automatic Measurement of Sagittal Vertical Axis Using ResUNet Framework.

ABSTRACT: We present an automated method for measuring the sagittal vertical axis (SVA) from lateral radiography of whole spine using a convolutional neural network for keypoint detection (ResUNet) with our improved localization method. The algorithm is robust to various clinical conditions, such as degenerative changes or deformities. The ResUNet was trained and evaluated on 990 standing lateral radiographs taken at Chang Gung Memorial Hospital, Linkou and performs SVA measurement with median absolute error of 1.183 ± 0.166 mm. The 5-mm detection rate of the C7 body and the sacrum are 91% and 87%, respectively. The SVA calculation takes approximately 0.2 s per image. The intra-class correlation coefficient of the SVA estimates between the algorithm and physicians of different years of experience ra

SUBMITTER: Weng CH 

PROVIDER: S-EPMC6912675 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature