Journal
EUROPEAN RADIOLOGY
Volume 26, Issue 1, Pages 72-78Publisher
SPRINGER
DOI: 10.1007/s00330-015-3753-9
Keywords
Carotid; Atherosclerosis; Radiation therapy; Computed tomography; Head and neck
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To study the carotid artery plaque composition and its volume changes in a group of patients at baseline and 2 years after head and neck radiation therapy treatment (HNXRT). In this retrospective study, 62 patients (41 males; mean age 63 years; range 52-81) who underwent HNXRT and 40 patients (24 males; mean age 65) who underwent surgical resection of neoplasm and did not undergo HNXRT were assessed, with 2-year follow-up. The carotid artery plaque volumes, as well as the volume of the sub-components (fatty-mixed-calcified), were semiautomatically quantified. Mann-Whitney and Wilcoxon tests were used to test the hypothesis. In the HNXRT group, there was a statistically significant increase in the total volume of the carotid artery plaques (from 533 to 746 mm(3); p = 0.001), in the fatty plaques (103 vs. 202 mm(3); p = 0.001) and mixed plaque component volume (328 vs. 419 mm(3); p = 0.034). A statistically significant variation (from 21.8 % to 27.6 %) in the percentage of the fatty tissue was found. of this preliminary study suggest that HNXRT promotes increased carotid artery plaque volume, particularly the fatty plaque component. aEuro cent HNXRT increases carotid plaque volume. aEuro cent Plaque volume increase is mainly due to increase.in fatty plaque component aEuro cent Patients who undergo HNXRT have a progression of carotid artery disease.
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