A1 Refereed original research article in a scientific journal

Prognostic value of combined coronary CT angiography and myocardial perfusion imaging in women and men




AuthorsKujala Iida, Nammas Wail, Maaniitty Teemu, Stenström Iida, Klén Riku, Bax Jeroen J, Knuuti Juhani, Saraste Antti

Publication year2023

JournalEHJ Cardiovascular Imaging / European Heart Journal - Cardiovascular Imaging

Journal name in sourceEuropean heart journal. Cardiovascular Imaging

Journal acronymEur Heart J Cardiovasc Imaging

ISSN2047-2404

eISSN2047-2412

DOIhttps://doi.org/10.1093/ehjci/jead072(external)

Web address https://doi.org/10.1093/ehjci/jead072(external)

Self-archived copy’s web addresshttps://research.utu.fi/converis/portal/detail/Publication/179495308(external)


Abstract

Aims: Combined anatomical and functional imaging enables detection of non-obstructive and obstructive coronary artery disease (CAD) as well as myocardial ischaemia. We evaluated sex differences in disease profile and outcomes after combined computed tomography angiography (CTA) and positron emission tomography (PET) perfusion imaging in patients with suspected obstructive CAD.

Methods and results: We retrospectively evaluated 1948 patients (59% women) referred for coronary CTA due to suspected CAD during the years 2008-2016. Patients with a suspected obstructive lesion on coronary CTA (n = 657) underwent 15O-water PET to assess stress myocardial blood flow (MBF). During a mean follow-up of 6.8 years, 182 adverse events (all-cause death, myocardial infarction, or unstable angina) occurred. Women had more often normal coronary arteries (42% vs. 22%, P < 0.001) and less often abnormal stress MBF (9% vs. 28%, P < 0.001) than men. The annual adverse event rate was lower in women vs. men (1.2% vs. 1.7%, P = 0.02). Both in women and men, coronary calcification, non-obstructive CAD, and abnormal stress MBF were independent predictors of events. Abnormal stress MBF was associated with 5.0- and 5.6-fold adverse event rates in women and men, respectively. There was no interaction between sex and coronary calcification, non-obstructive CAD, or abnormal stress MBF in terms of predicting adverse events.

Conclusion: Among patients evaluated for chronic chest pain, women have a lower prevalence of ischaemic CAD and a lower rate of adverse events. Combined coronary CTA and PET myocardial perfusion imaging predict outcomes equally in women and men.


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Last updated on 2025-27-03 at 21:47