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A practical protocol to measure common carotid artery intima-media thickness.
Clinics (Sao Paulo) 2008; 63(4):515-20C

Abstract

OBJECTIVE

To describe and test a practical protocol to measure common carotid intima-media thickness that uses the combined values of two longitudinal examination angles to increase sensitivity.

METHOD

Between February and September 2005, 206 patients underwent duplex scan examination of carotid vessels, and the intima-media thickness of 407 common carotids were measured in three angles: transversal, longitudinal posterolateral, and anterolateral, with three intima-media thickness measurements for each near and far wall. In addition to numbers obtained from the three angles of measurement, a fourth visual perspective was obtained by combining the intima-media thickness results of posterolateral and anterolateral longitudinal views and considering the thickest wall measurement.

RESULTS

Two hundred seventy (66.3%) carotid arteries had an intima-media thickness thicker than 1mm. The mean intima-media thickness values achieved by the different incidences were 1.26+/-0.6 mm (transversal), 1.17+/-0.54 mm (longitudinal anterolateral), and 1.18+/-0.58 mm (longitudinal posterolateral). A significant difference in intima-media thickness measurement values was observed when the three angles of examination plus the combined positive results of both longitudinal angles were compared by ANOVA (P=0.005). The LSD Post-Hoc test determined that the combined longitudinal view results were similar to the transversal views (P=0.28) and had greater intima-media thickness means than isolated anterolateral or posterolateral longitudinal views (P=0.02 and 0.05, respectively).

CONCLUSIONS

The protocol presented is a practical method for obtaining common carotid artery intima-media thickness measurements. The combined longitudinal posterolateral and anterolateral longitudinal views provide a more sensitive evaluation of the inner layers of the carotid walls than isolated longitudinal views.

Authors+Show Affiliations

Division of Vascular Surgery, Hospital Regional Sul, São Paulo, SP, Brazil. ivancasel@uol.com.brNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

18719764

Citation

Casella, Ivan Benaduce, et al. "A Practical Protocol to Measure Common Carotid Artery Intima-media Thickness." Clinics (Sao Paulo, Brazil), vol. 63, no. 4, 2008, pp. 515-20.
Casella IB, Presti C, Porta RM, et al. A practical protocol to measure common carotid artery intima-media thickness. Clinics (Sao Paulo). 2008;63(4):515-20.
Casella, I. B., Presti, C., Porta, R. M., Sabbag, C. R., Bosch, M. A., & Yamazaki, Y. (2008). A practical protocol to measure common carotid artery intima-media thickness. Clinics (Sao Paulo, Brazil), 63(4), pp. 515-20.
Casella IB, et al. A Practical Protocol to Measure Common Carotid Artery Intima-media Thickness. Clinics (Sao Paulo). 2008;63(4):515-20. PubMed PMID: 18719764.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A practical protocol to measure common carotid artery intima-media thickness. AU - Casella,Ivan Benaduce, AU - Presti,Calógero, AU - Porta,Rina Maria Pereira, AU - Sabbag,Cláudio Rogério Donmarco, AU - Bosch,Maria Alice, AU - Yamazaki,Yumiko, PY - 2008/04/03/received PY - 2008/05/29/accepted PY - 2008/8/23/pubmed PY - 2009/7/17/medline PY - 2008/8/23/entrez SP - 515 EP - 20 JF - Clinics (Sao Paulo, Brazil) JO - Clinics (Sao Paulo) VL - 63 IS - 4 N2 - OBJECTIVE: To describe and test a practical protocol to measure common carotid intima-media thickness that uses the combined values of two longitudinal examination angles to increase sensitivity. METHOD: Between February and September 2005, 206 patients underwent duplex scan examination of carotid vessels, and the intima-media thickness of 407 common carotids were measured in three angles: transversal, longitudinal posterolateral, and anterolateral, with three intima-media thickness measurements for each near and far wall. In addition to numbers obtained from the three angles of measurement, a fourth visual perspective was obtained by combining the intima-media thickness results of posterolateral and anterolateral longitudinal views and considering the thickest wall measurement. RESULTS: Two hundred seventy (66.3%) carotid arteries had an intima-media thickness thicker than 1mm. The mean intima-media thickness values achieved by the different incidences were 1.26+/-0.6 mm (transversal), 1.17+/-0.54 mm (longitudinal anterolateral), and 1.18+/-0.58 mm (longitudinal posterolateral). A significant difference in intima-media thickness measurement values was observed when the three angles of examination plus the combined positive results of both longitudinal angles were compared by ANOVA (P=0.005). The LSD Post-Hoc test determined that the combined longitudinal view results were similar to the transversal views (P=0.28) and had greater intima-media thickness means than isolated anterolateral or posterolateral longitudinal views (P=0.02 and 0.05, respectively). CONCLUSIONS: The protocol presented is a practical method for obtaining common carotid artery intima-media thickness measurements. The combined longitudinal posterolateral and anterolateral longitudinal views provide a more sensitive evaluation of the inner layers of the carotid walls than isolated longitudinal views. SN - 1807-5932 UR - https://www.unboundmedicine.com/medline/citation/18719764/A_practical_protocol_to_measure_common_carotid_artery_intima_media_thickness_ L2 - http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322008000400017&lng=en&nrm=iso&tlng=en DB - PRIME DP - Unbound Medicine ER -