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Article History

Received: 27 September 2019

Accepted: 21 January 2020

First Online: 4 February 2020

Ethics approval and consent to participate

: This study was approved by the research ethics committee of the Radiology department of the Faculty of medicine Cairo University on 3/9/2014, Reference number of approval: 780-2014.All patients included in this study gave a written informed consent to participate in the research. If the patient was less than 16 years old, or unconscious at the time of study, written informed consent was given by their parent or legal guardian.

: All patients included in this study gave a written informed consent to publish the data contained in this study. If the patient was less than 16 years old, or unconscious at the time of study, written informed consent was given by their parent or legal guardian.

: The authors declare that they have no competing interests.