Tetsuro Sekine1, Erika Orita1, Takahiro Ando1, Yasuo Murai1, and Shinichiro Kumita1
1Nippon Medical School, Tokyo, Japan
1Nippon Medical School, Tokyo, Japan
The visual and quantitative assessment of 4D flow MRI revealed that
intracranial blood flow changes complementarily after STA-MCA bypass surgery.
The sum of intracranial BFV can be used for the evaluation of treatment outcome
after the surgery.
Figure 2. Correlation
between MCA pressure increase ratio and BFVtotal increase ratio in
three groups according to pre-MCA pressure levels. Dotted line represents the
linear regression line of the patients with severe decrease of pre-MCA pressure
(≦
32mmHg).
BFV: Blood flow volume, MCA: middle
cerebral artery
FIgure 1. BFV of each
artery (A, ipsilateral ICA; B, contralateral ICA; C, BA; D, ipsilateral STA; E,
contralateral STA) and total BFV (F) before and after bypass surgery.
*p <
0.05.
BA:
Basilar artery, BFV: Blood flow volume, ICA: Internal carotid artery, STA: Superficial
temporal artery