Age- and sex-related features of atherosclerosis from coronary computed tomography angiography in patients prior to acute coronary syndrome: results from the ICONIC study

Edoardo Conte, Aeshita Dwivedi, Saima Mushtaq, Gianluca Pontone, Fay Y. Lin, Emma J. Hollenberg, Sang-Eun Lee, Jeroen Bax, Filippo Cademartiri, Kavitha Chinnaiyan, Benjamin J. W. Chow, Ricardo C. Cury, Gudrun Feuchtner, Martin Hadamitzky, Yong-Jin Kim, Andrea Baggiano, Jonathon Leipsic, Erica Maffei, Hugo Marques, Fabian PlankGilbert L. Raff, Alexander R. van Rosendael, Todd C. Villines, Harald G. Weirich, Subhi J. Al'Aref, Lohendran Baskaran, Iksung Cho, Ibrahim Danad, Donghee Han, Ran Heo, Ji Hyun Lee, Wijnand J. Stuijfzand, Heidi Gransar, Yao Lu, Ji Min Sung, Hyung-Bok Park, Mouaz H. Al-Mallah, Pedro de Araújo Gonçalves, Daniel S. Berman, Matthew J. Budoff, Habib Samady, Leslee J. Shaw, Peter H. Stone, Renu Virmani, Jagat Narula, James K. Min, Hyuk-Jae Chang, Daniele Andreini

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

AIMS: Although there is increasing evidence supporting coronary atherosclerosis evaluation by coronary computed tomography angiography (CCTA), no data are available on age and sex differences for quantitative plaque features. The aim of this study was to investigate sex and age differences in both qualitative and quantitative atherosclerotic features from CCTA prior to acute coronary syndrome (ACS). METHODS AND RESULTS: Within the ICONIC study, in which 234 patients with subsequent ACS were propensity matched 1:1 with 234 non-event controls, our current subanalysis included only the ACS cases. Both qualitative and quantitative advance plaque analysis by CCTA were performed by a core laboratory. In 129 cases, culprit lesions identified by invasive coronary angiography at the time of ACS were co-registered to baseline CCTA precursor lesions. The study population was then divided into subgroups according to sex and age (<65 vs. ≥ 65 years old) for analysis. Older patients had higher total plaque volume than younger patients. Within specific subtypes of plaque volume, however, only calcified plaque volume was higher in older patients (135.9 ± 163.7 vs. 63.8 ± 94.2 mm3, P < 0.0001, respectively). Although no sex-related differences were recorded for calcified plaque volume, females had lower fibrous and fibrofatty plaque volume than males (Fibrofatty volume 29.6 ± 44.1 vs. 75.3 ± 98.6 mm3, P = 0.0001, respectively). No sex-related differences in the prevalence of qualitative high-risk plaque features were found, even after separate analyses considering age were performed. CONCLUSION: Our data underline the importance of age- and sex-related differences in coronary atherosclerosis presentation, which should be considered during CCTA-based atherosclerosis quantification.
Original languageEnglish
Pages (from-to)24-33
Number of pages10
JournalEuropean heart journal cardiovascular Imaging
Volume22
Issue number1
DOIs
Publication statusPublished - 1 Jan 2021

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