UCSF Department of Radiology, 505 Parnassus Avenue, Box 0628, San Francisco, CA 94143-0628, USA. donny.tjandra@radiology.ucsf.edu|UCSF Department of Radiology, 505 Parnassus Avenue, Box 0628, San Francisco, CA 94143-0628, USA. donny.tjandra@radiology.ucsf.edu|UCSF Department of Radiology, 505 Parnassus Avenue, Box 0628, San Francisco, CA 94143-0628, USA. donny.tjandra@radiology.ucsf.edu|UCSF Department of Radiology, 505 Parnassus Avenue, Box 0628, San Francisco, CA 94143-0628, USA. donny.tjandra@radiology.ucsf.edu|UCSF Department of Radiology, 505 Parnassus Avenue, Box 0628, San Francisco, CA 94143-0628, USA. donny.tjandra@radiology.ucsf.edu|UCSF Department of Radiology, 505 Parnassus Avenue, Box 0628, San Francisco, CA 94143-0628, USA. donny.tjandra@radiology.ucsf.edu