Keywords:
Neuroradiology brain, CT, Ultrasound-Colour Doppler, Ultrasound, Imaging sequences, Comparative studies, Diagnostic procedure, Aneurysms, Acute
Authors:
E. Grigorieva, F. Sharifullin, O. Zabavskaya, L. Hamidova, N. Polunina; Moscow/RU
DOI:
10.1594/ecr2013/C-1332
Results
FVs in I group of patients varied from 100 cm/s to 333см/s (mean FVs 203,8 cm/s).
The minimum FVs in this group corresponds to ischemic lesion volume of up to 7сm3 (by CT data),
but maximum FVs – to ischemic volume up to 411cm3. In the second group FVs varied from 89cm/s to 357 cm/s,
and minimum values consistent with ischemia 2сm3,
maximum – with ischemia 714сm3. FVs in the third group of patients ranged from 120cm/s up to 200 cm/s.
The time difference between the measurement of FVs and detecting ischemia by CT was 3-4 days in average.
Fast rising of FVs (during 24-48 hours) in the I and II groups followed by increasing of cerebral ischemia volume was revealed at 21 (87,5%) patients in I group and 34 (70,8%) – in II group.
However significant correlations between risings of FVs and ischemia volume increasing were not revealed while comparing their absolute values (for example,
in one patient the increase of FVs from 178 up to 220 cm/s corresponds with growing of ischemia volume only till 30%,
while another patient showed that rising of FVs from 200 cm/s to 280см/s has led to increasing ischemia by 69% from initial value).