Browsing by Author "Jukema, Ruurt A."
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Publication Diagnostic performance of CCTA and CTP imaging for clinically suspected in-stent restenosis: A meta-analysis(2025) Dahdal, Jorge; Jukema, Ruurt A.; Remmelzwaal, Sharon; Raijmakers, Pieter G.; Harst, Pim van der; Guglielmo, Marco; Cramer, Maarten J.; Chamuleau, Steven A.J.; Diemen, Pepijn A. van; Knaapen, Paul; Danad, IbrahimAims: The objective of this study is to conduct a meta-analysis to assess the diagnostic performance of Coronary Computed Tomography Angiography (CCTA) and a hybrid approach that incorporates Computed Tomography Perfusion (CTP) in addition to CCTA (CCTA þ CTP) for the detection of in-stent restenosis (ISR), as defined by angiography. Methods: A comprehensive search of articles identified 18,513 studies. After removing duplicates, title/abstract screening, and full-text review, 17 CCTA and 3 CCTA þ CTP studies were included. Only studies using 64-slices multidetector computed tomography (CT) were considered eligible. Results: The per-patient ISR prevalence was 43 %, with 92 % of stents fully interpretable with CCTA. Meta-analysis exhibited a per-stent CCTA (n ¼ 2674) sensitivity of 90 % (95 % CI; 84–94 %), specificity of 89 % (95 % CI; 86–92 %), positive likelihood ratio of 7.17 (95 % CI; 5.24–9.61), negative likelihood ratio of 0.17 (95 % CI; 0.10–0.25), and diagnostic odds ratio of 45.7 (95 % CI; 22.71–82.43). Additional sensitivity analyses revealed no influence of stent diameter or strut thickness on the diagnostic yield of CCTA. The per-stent diagnostic performance of CCTA þ CTP (n ¼ 752) did not show differences compared to CCTA. Conclusions: With currently utilized scanners, CCTA and CCTA þ CTP demonstrated high diagnostic performance for in-stent restenosis evaluation. Consequently, a history of previous stent implantation should not be an argument to preclude using these methods in clinically suspected patients.Publication Microvascular resistance reserve in relation to total and vessel-specific atherosclerotic burden(2025) Hoshino, Masahiro; Jukema, Ruurt A.; Hoek, Roel; Dahdal, Jorge; Raijmakers, Pieter; Driessen, Roel; Bom, Michiel J.; Diemen, Pepijn van; Twisk, Jos; Danad, Ibrahim; Kakuta, Tsunekazu; Knuuti, Juhani; Knaapen, PaulAims The relationship between coronary artery atherosclerosis and microvascular resistance remains unclear. This study aims to clarify the relationship between total atherosclerotic and vessel-specific atherosclerotic burden and microvascular resistance reserve (MRR). Methods and results In this post hoc analysis of the PACIFIC 1 trial, symptomatic patients without prior coronary artery disease (CAD) underwent [15O]H2O positron emission tomography, coronary computed tomography angiography (CCTA), and invasive fractional flow reserve (FFR). MRR was assessed across all three coronary branches, utilizing PET-derived coronary flow reserve and invasive FFR measurements. CCTA was used to assess patient and vessel-specific plaque volumes. Percentage atheroma volume (PAV) was defined as total plaque volume divided by vessel volume. The study included 142 patients (55% male, 57.5 ± 8.6 years) with 426 vessels with a mean MRR of 3.77 ± 1.64. While a significantly higher PAV was observed in the left anterior descending artery territory, MRR was similar across the three coronary branches. Generalized estimating equations without correction for cardiovascular risk factors identified that patient-specific PAV tertiles but not vessel-specific PAV tertiles were related to vessel-specific MRR. After correction for cardiovascular risk factors, compared with the first tertile of patient-specific PAV, the second tertile showed a vessel-specific MRR decrease of β = −0.362, P = 0.018, and the third tertile showed a decrease of β = −0.347, P = 0.024. Conclusion In patients without prior CAD, patient-specific plaque burden was negatively associated to vessel-specific MRR; however, vessel-specific plaque burden was not related to vessel-specific MRR. Our findings suggest that the relation between atherosclerotic burden and an impaired microcirculatory function is of systemic origin.