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Wang X, Nai YH, Gan J, Lian CPL, Ryan FK, Tan FSL, Chan DYS, Ng JJ, Lo ZJ, Chong TT, Hausenloy DJ. Multi-Modality Imaging of Atheromatous Plaques in Peripheral Arterial Disease: Integrating Molecular and Imaging Markers. Int J Mol Sci 2023; 24:11123. [PMID: 37446302 DOI: 10.3390/ijms241311123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/14/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Peripheral artery disease (PAD) is a common and debilitating condition characterized by the narrowing of the limb arteries, primarily due to atherosclerosis. Non-invasive multi-modality imaging approaches using computed tomography (CT), magnetic resonance imaging (MRI), and nuclear imaging have emerged as valuable tools for assessing PAD atheromatous plaques and vessel walls. This review provides an overview of these different imaging techniques, their advantages, limitations, and recent advancements. In addition, this review highlights the importance of molecular markers, including those related to inflammation, endothelial dysfunction, and oxidative stress, in PAD pathophysiology. The potential of integrating molecular and imaging markers for an improved understanding of PAD is also discussed. Despite the promise of this integrative approach, there remain several challenges, including technical limitations in imaging modalities and the need for novel molecular marker discovery and validation. Addressing these challenges and embracing future directions in the field will be essential for maximizing the potential of molecular and imaging markers for improving PAD patient outcomes.
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Affiliation(s)
- Xiaomeng Wang
- Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore
| | - Ying-Hwey Nai
- Clinical Imaging Research Centre, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117599, Singapore
| | - Julian Gan
- Siemens Healthineers, Singapore 348615, Singapore
| | - Cheryl Pei Ling Lian
- Health and Social Sciences Cluster, Singapore Institute of Technology, Singapore 138683, Singapore
| | - Fraser Kirwan Ryan
- Infocomm Technology Cluster, Singapore Institute of Technology, Singapore 138683, Singapore
| | - Forest Su Lim Tan
- Infocomm Technology Cluster, Singapore Institute of Technology, Singapore 138683, Singapore
| | - Dexter Yak Seng Chan
- Department of General Surgery, Khoo Teck Puat Hospital, Singapore 768828, Singapore
| | - Jun Jie Ng
- Division of Vascular and Endovascular Surgery, Department of Cardiac, Thoracic and Vascular Surgery, National University Heart Centre, Singapore 119074, Singapore
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Zhiwen Joseph Lo
- Vascular Surgery Service, Department of Surgery, Woodlands Health, Singapore 258499, Singapore
- Centre for Population Health Sciences, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
| | - Tze Tec Chong
- Department of Vascular Surgery, Singapore General Hospital, Singapore 168752, Singapore
- Surgical Academic Clinical Programme, Singapore General Hospital, Singapore 169608, Singapore
- Vascular SingHealth Duke-NUS Disease Centre, Singapore 168752, Singapore
| | - Derek John Hausenloy
- Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore
- National Heart Research Institute Singapore, National Heart Centre, Singapore 169609, Singapore
- Yong Loo Lin School of Medicine, National University Singapore, Singapore 117597, Singapore
- The Hatter Cardiovascular Institute, University College London, London WC1E 6HX, UK
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Ihdayhid AR, Thakur U, Yap G, Goeller M, Nerlekar N, Adams D, Isa M, Joshi M, Cameron J, Seneviratne S, Dey D, Achenbach S, Leipsic J, Ko BS. Ethnic differences in coronary anatomy, left ventricular mass and CT-derived fractional flow reserve. J Cardiovasc Comput Tomogr 2020; 15:249-257. [PMID: 33041249 DOI: 10.1016/j.jcct.2020.09.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 08/29/2020] [Accepted: 09/15/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Studies have observed higher incidence of cardiovascular mortality in South Asians (SA), and lower prevalence in East Asians (EA), compared with Caucasians. These observations are not entirely explained by ethnic differences in cardiovascular risk factors and mechanistic factors such as variations in cardiac anatomy and physiology may play a role. This study compared ethnic differences in CT-assessed left ventricular (LV) mass, coronary anatomy and non-invasive fractional flow reserve (FFRCT). METHODS Three-hundred symptomatic patients (age 59 ± 7.9, male 51%) underwent clinically-mandated CT-coronary-angiography (CTA) were matched for age, gender, BMI and diabetes (100 each ethnicity). Assessment of coronary stenosis, luminal dimensions and vessel dominance was performed by independent observers. LV mass, coronary luminal volume and FFRCT were quantified by blinded core-laboratory. A sub-analysis was performed on patients (n = 187) with normal/minimal disease (0-25% stenosis). RESULTS Stenosis severity was comparable across ethnic groups. EA demonstrated less left-dominant circulation (2%) compared with SA (8.2%) and Caucasians (10.1%). SA compared with EA and Caucasians demonstrated smallest indexed LV mass, coronary luminal volumes and dimensions. EA compared with Caucasians had comparable indexed LV mass, coronary luminal dimensions and highest luminal volumes. The latter was driven by higher prevalence of right-dominance including larger and longer right posterior left ventricular artery. FFRCT in the left anterior descending artery (LAD) was lowest in SA (0.87) compared with EA (0.89; P = 0.009) and Caucasians (0.89; P < 0.001), with no difference in other vessels. All observed differences were consistent in patients with minimal disease. CONCLUSION This single-centre study identified significant ethnic differences in CT-assessed LV mass, coronary anatomy and LAD FFRCT. These hypotheses generating results may provide a mechanistic explanation for ethnic differences in cardiovascular outcomes and require validation in larger cohorts.
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Affiliation(s)
- Abdul Rahman Ihdayhid
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, Victoria, Australia
| | - Udit Thakur
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, Victoria, Australia
| | - Grace Yap
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, Victoria, Australia
| | - Markus Goeller
- Friedrich Alexander University Erlangen Nürnberg (FAU), Faculty of Medicine, Department of Cardiology, Erlangen, Germany; Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Nitesh Nerlekar
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, Victoria, Australia
| | - Daniel Adams
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, Victoria, Australia
| | - Mourushi Isa
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, Victoria, Australia
| | - Mitwa Joshi
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, Victoria, Australia
| | - James Cameron
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, Victoria, Australia
| | - Sujith Seneviratne
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, Victoria, Australia
| | - Damini Dey
- Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Stephan Achenbach
- Friedrich Alexander University Erlangen Nürnberg (FAU), Faculty of Medicine, Department of Cardiology, Erlangen, Germany
| | - Jonathan Leipsic
- Department of Radiology, University of British Columbia, Vancouver, BC, Canada
| | - Brian S Ko
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, Victoria, Australia.
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Adams DB, Narayan O, Munnur RK, Cameron JD, Wong DTL, Talman AH, Harper RW, Seneviratne SK, Meredith IT, Ko BS. Ethnic differences in coronary plaque and epicardial fat volume quantified using computed tomography. Int J Cardiovasc Imaging 2016; 33:241-249. [PMID: 27672064 DOI: 10.1007/s10554-016-0982-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 09/19/2016] [Indexed: 01/09/2023]
Abstract
Epidemiological studies observed a higher prevalence of coronary atherosclerosis in South Asians when compared to Caucasians, but quantitative computed tomography differences in aggregate plaque volume (APV) and epicardial fat volume (EFV) between South Asians, Southeast or East Asians (SEEAs) and Caucasians remain unknown. We aimed to compare APV and EFV quantified on computed-tomographic-coronary-angiography (CTCA) between South Asian, SEEA and Caucasian populations residing in Australia. Age, gender and body-mass-index matched subjects from three ethnic groups who underwent clinically indicated 320-detector CTCA were retrospectively analysed. Percentage APV in the first 5 cm of the left anterior descending artery (LAD) and EFV were quantified using dedicated software (Vital Images, USA). One-hundred-and-fifty subjects (average age = 57.7 years, 56 % male, n = 50 in each ethnic group) were analysed. Mean LAD percentage APV was highest in South Asians (44.5 ± 8.4 % vs. 37.5 ± 6.5 % in SEEAs and 39.5 ± 6.4 % in Caucasians, P = 0.00001). South Asian ethnicity predicted LAD APV above traditional risk factors on multivariate analysis (P = 0.000002). EFV was significantly higher in both South Asians (103.2 ± 41.7 cm3 vs. 85.8 ± 39.4 cm3, P = 0.035) and SEEAs (110.8 ± 36.9 cm3 vs. 85.8 ± 39.4 cm3, P = 0.001) when compared with Caucasians. In this cohort LAD percentage APV and EFV, as quantified on CTCA, differs between South Asians, SEEA and Caucasian populations, with higher LAD APV observed in South Asians and lower EFV in Caucasians. Atherosclerotic volume in LAD was best predicted by South Asian ethnicity above traditional risk factors and EFV. Further research is required to establish whether APV and EFV quantification can improve cardiac risk prediction in the South Asian population.
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Affiliation(s)
- Daniel B Adams
- Department of Medicine Monash Medical Centre (MMC), Monash Cardiovascular Research Centre, MonashHEART, Monash Health and Monash University, Melbourne, Australia
| | - Om Narayan
- Department of Medicine Monash Medical Centre (MMC), Monash Cardiovascular Research Centre, MonashHEART, Monash Health and Monash University, Melbourne, Australia
| | - Ravi Kiran Munnur
- Department of Medicine Monash Medical Centre (MMC), Monash Cardiovascular Research Centre, MonashHEART, Monash Health and Monash University, Melbourne, Australia
| | - James D Cameron
- Department of Medicine Monash Medical Centre (MMC), Monash Cardiovascular Research Centre, MonashHEART, Monash Health and Monash University, Melbourne, Australia
| | - Dennis T L Wong
- Department of Medicine Monash Medical Centre (MMC), Monash Cardiovascular Research Centre, MonashHEART, Monash Health and Monash University, Melbourne, Australia
| | - Andrew H Talman
- Department of Medicine Monash Medical Centre (MMC), Monash Cardiovascular Research Centre, MonashHEART, Monash Health and Monash University, Melbourne, Australia
| | - Richard W Harper
- Department of Medicine Monash Medical Centre (MMC), Monash Cardiovascular Research Centre, MonashHEART, Monash Health and Monash University, Melbourne, Australia
| | - Sujith K Seneviratne
- Department of Medicine Monash Medical Centre (MMC), Monash Cardiovascular Research Centre, MonashHEART, Monash Health and Monash University, Melbourne, Australia
| | - Ian T Meredith
- Department of Medicine Monash Medical Centre (MMC), Monash Cardiovascular Research Centre, MonashHEART, Monash Health and Monash University, Melbourne, Australia
| | - Brian S Ko
- Department of Medicine Monash Medical Centre (MMC), Monash Cardiovascular Research Centre, MonashHEART, Monash Health and Monash University, Melbourne, Australia.
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