1. Department of Radiology, Brigham & Women's Hospital Harvard Medical School Boston Massachusetts USA
2. Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine Asan Medical Center Seoul South Korea
3. Division of Otolaryngology‐Head and Neck Surgery, Brigham & Women's Hospital Harvard Medical School Boston Massachusetts USA
4. Department of Pathology, Brigham & Women's Hospital Harvard Medical School Boston Massachusetts USA
5. Department of Neurology, Brigham & Women's Hospital Harvard Medical School Boston Massachusetts USA
6. Department of Radiation Oncology, Brigham & Women's Hospital, Dana‐Farber Cancer Institute Harvard Medical School Boston Massachusetts USA
7. Division of Neuroradiology, Brigham & Women's Hospital, Dana‐Farber Cancer Institute Harvard Medical School Boston Massachusetts USA