1. Department of MR, Shandong Provincial Hospital, Shandong University, Jinan 250021, China
2. Department of Radiology, Wuhu Hospital, East China Normal University (The Second People’s Hospital, Wuhu), Wuhu 241000, China
3. Departments of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
4. Department of Andrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
5. Philips Healthcare, Beijing 100016, China