Keywords: Machine Learning/Artificial Intelligence, Bone, UTE, Deep Learning, Image Regression, Saliency MapIsthmic spondylolysis results in fracture of pars interarticularis of the lumbar spine in young athletes. UTE MRI provide good bone contrast, although CT is still the gold standard. To take UTE MRI further, we developed supervised deep-learning tools to generate CT-like images and saliency maps of fracture probability from UTE MRI and CT, using ex vivo preparation of cadaveric spines. The results demonstrate feasibility of CT-like images to provide easier interpretability for bone fractures, due to improved image contrast and CNR, and the saliency maps to aid in quick detection of pars fracture by providing visual cues to the reader.
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