Fig. 1From: Cervical lymph node metastasis prediction from papillary thyroid carcinoma US videos: a prospective multicenter studyIllustration of the multi-scale, multi-frame, and dual-direction deep learning (MMD-DL) model. a Flowchart of the training stages of MMD-DL. b Architecture of the pre-trained feature extractor. c Architecture of MMD-DL with transverse and longitudinal ultrasound videos as inputs and lymph node metastasis probability as the outputBack to article page