Santos SN, Alcantara ML, Freire CMV, Cantisano AL, Teodoro JAR, Carmen CLL, et al. Association between the intima-media thickness of the extracranial carotid arteries and metabolic syndrome in ethnic Kyrgyzs. Kerimkulova AS, Lunegova OS, Mirrakhimov AE, Abilova SS, Nabiev MP, Neronova KV, Bektasheva EE, Toktomamatov UM, Esenbekova JE, Mirrakhimov EM. General principles of carotid Doppler ultrasonography. A practical protocol to measure common carotid artery intima-media thickness. Casella IB, Presti C, Porta RM, Sabbag CR, Bosch MA, Yamazaki Y. The CCA-IMT in patients with metabolic syndrome is significantly increased with or without abdominal obesity 3.
It predicts the risk of developing future cerebrovascular or cardiac thrombotic and can be used as a screening tool 2. The CCA-IMT has a linear relationship with systemic atherosclerosis burden 1,2. The average IMT value is calculated for each common carotid artery and >1 mm is taken as abnormal 4. measure on the posterior wall of the common carotids on the right and on the left, 1 cm from the carotid bifurcation.sagittal imaging of the CCA has to be used and take at least five measurements on each side to obtain an average value ("average IMT").the patient should be kept on supine position and head turned away from the side of the examination.The measurement is made between the two bright lines made by blood-intima interface and media-adventitia junction as the far and near-wall respectively 4: The upper limits (97.5 percentile) of IMT at CCA for participants age 35 to 39, 40 to 49, 50 to 59, and 60 years or older were 0.60, 0.64, 0.71, and 0.81 mm, respectively, whereas for that at bifurcation were 0.83, 0.77, 0.85, and 1.05 mm, respectively. There are different protocols for assessment of CCA-IMT. Foci of atheromatous plaques need to be avoided when measuring IMT. The thickness of the media and the intima of the vessels changes following many conditions and it can be easily and reliably assessed with ultrasound on B mode in the common carotid arteries (CCA) 1,2. Intima-media thickness (IMT) is an indirect sonographic assessment of the degree of atheromatous vascular disease of end organs.
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