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Table 1: 
Demographics and breakdown of indications for imaging
Estimated Duration (n = 151)Measured Duration (n = 53)
Demographics
    Age (yr)53.4 (19–87)51.8 (21–79)
    Sex (M/F)67:8425:28
Indications (No.) (%)
    Intraparenchymal hemorrhage47 (31%)20 (38%)
    Suspected vascular lesion37 (25%)11 (21%)
    Tinnitus21 (14%)5 (9%)
    Tumor vascular assessment11 (7%)5 (9%)
    Subdural hemorrhage5 (3%)0 (0%)
    Subarachnoid hemorrhage4 (3%)0 (0%)
    Untreated AVM/F assessment7 (5%)5 (9%)
    Treated AVM/F assessment6 (4%)3 (6%)
    Venous stenosis/thrombosis (including assessment of idiopathic intracranial hypertension)8 (5%)3 (6%)
    Other5 (3%)1 (2%)
  • Note:—AVM/F indicates arteriovenous malformation or fistula.