Keywords:
Ischaemia / Infarction, Haemodynamics / Flow dynamics, Blood, Imaging sequences, Diagnostic procedure, MR, CT-Angiography, Vascular, Head and neck, Cardiovascular system
Authors:
Y. Stankevich, O. Bogomyakova, L. Shraybman, M. Rezakova, A. Tulupov; Novosibirsk/RU
DOI:
10.1594/ecr2013/C-1751
Conclusion
- Q-Flow technique could be successfully applied to quantification of blood flow parameters at the different levels of the ICA in a short time.
- There were defined the normal values of mean velocity,
mean flux,
peak velocity of vessels at different levels of the ICA.
- For all measured hemodynamic parameters was not determined significant difference between the mean values for right and left ICA.
- The velocity parameters of arterial blood flow tend to the normal values at intracranial levels in case the bilateral ICA S-shape elongation patients without ischemic.
This research is demonstrated the benefit of 2D PC MRA Q-Flow technique in blood flow velocity measurements in normal subjects and patients with bilateral ICA S-shape elongation.
Thus,
it was found that cerebral blood flow in the ICA has a complex symmetrical character needed to ensure the compensation mechanisms in case of blood circulation disorders.
The normal values velocity characteristics of arterial blood flow at different levels of ICA were offered for comparison in case with pathologies of ICA. Arterial blood flow changes in young patients with bilateral S-shape ICA elongation at the cervical level is compensated in intracranial level.
Advantages of magnetic resonance angiography enlarge the abilities of investigation morphologic and functional properties of vascular structures of head and make it possible to estimate quantitative parameters of blood flow as well as qualitative data.