Table 1:

Characteristics of the 26 patientsa

Characteristics
Age (yr)33 (22–42)
Sex, male17 (65.4%)
bAVM location
    Supratentorial24 (92.3%)
    Infratentorial2 (7.7%)
Spetzler-Martin gradeI (I–II)
Presentation
    Hemorrhage20 (76.9%)
    Seizure4 (15.4%)
    Headache5 (19.2%)
    Neurologic symptoms1 (3.8%)
Type of treatment
    Embolization then radiosurgery22 (84.6%)
    Radiosurgery2 (7.7%)
    Surgery then embolization then radiosurgery2 (7.7%)
Time intervals
    Delay between last treatment and SWAN (mo)b34 (27.7–46.8)
    Delay between SWAN and DSA (days)b3 (3–65)

  • ↵a Continuous variables are presented as proportion and percentage; categoric variables are described as median and first and third quartiles.

  • ↵b Calculated for 28 datasets because 2 patients had 2 separate SWAN/DSA follow-ups.