Type:
Educational Exhibit
Keywords:
Haemodynamics / Flow dynamics, Arteriosclerosis, Computer Applications-Detection, diagnosis, Ultrasound-Spectral Doppler, Ultrasound-Power Doppler, Ultrasound-Colour Doppler, Vascular
Authors:
L. F. S. B. Torres1, D. A. G. Torres2, P. Gil3, �. Marques4, C. Rios4, A. Cardoso4; 1Lisbon, Lisbon/PT, 2Lisboa, Lisbon/PT, 3Lisbon/PT, 4Lisboa/PT
DOI:
10.1594/ecr2018/C-3116
Conclusion
The systematic approach of the arteries with Doppler-Ultrasound in clinical suspected cases is a good imaging method to diagnose and to follow up GCA and Takayasu Arteritis.
Doppler Ultrasound allows an adequate evaluation of the wall of the more superficial arteries,
namely the temporal artery,
as well as the evaluation of the characteristics of its flow.
The halo signal in GCA and Macaroni Sign in Takayasu arteritis present high specificity and allow distinction between both arteritis.
US is not affected by the skip lesions,
like temporal artery biopsy on GCA,
and it also permits detection of alterations in the pre-stenotic phase of Takayasu Arteritis,
where it can be used as a screening method.
However,
it evaluates only the deepest arteries with average quality,
does not allow to evaluate the degree of activity of the diseases nor to distinguish it from other types of arteritis,
besides being dependent on the operator.
The role in the follow up is also not yet fully established.