TABLE 1. Subject and Recording Details

All Patients (n=20)Headband Transducer Fixation (n=10)Glasses Transducer Fixation (n=10)P Value (Mann-Whitney)
MCA indicates middle cerebral artery.
*4=very good; 3=good; 2=fair; 1=poor.
Age, median (range)66 (38–91)71 (56–88)61 (38–91)0.160
Male11650.661
Side of MCA insonated
    Left8530.374
    Right1257
Set-up time
    0–30 min16790.234
    30–60 min000
    60–90 min211
    >2 h220
Median (range) ambulatory time, min340 (325–385)329.5 (325–385)343 (330–362)0.074
Median (range) MCA Doppler signal, min304 (190–326)297 (190–326)308 (223–325)0.257
Median (range) MCA Doppler signal, % of recording96 (58–100)91 (58–100)98 (86–100)0.099
Median (range) recording quality*3.0 (2.0–4.0)2.0 (2.0–4.0)3.75 (2.0–4.0)0.024
No. of manual adjustments required201820.004
Headache3300.067