Text and Data Mining valid from 2019-01-10
Received: 10 December 2018
Revised: 27 December 2018
Accepted: 2 January 2019
First Online: 10 January 2019
Compliance with ethical standards
: The study was conducted according to the guidelines of the Declaration of Helsinki and approval of the institute’s review board (9192-11-SMC), allowing for the retrospective retrieval of data, analysis of MRI examinations, and performance of telephone interviews. Due to the retrospective nature of this study, informed consent was waived.