This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal).
This article has been retracted at the request of the Editor-in-Chief.
The article reuses without permission six images (Figs. 5A, B, 6A, B and 7A, B) that were previously published in an article in the American Journal of Roentgenology (AJR) doi.org/10.2214/AJR.17.18384. The article also contains alterations to the details in the legends of these same figures relative to their details in the earlier article. The authors have been provided the option to submit a version of the manuscript with new images in place of the previously listed images; such a submission would be required to undergo peer review as a new submission.