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Ji B, Liu XB. Coronary artery calcification: concepts and clinical applications. Ann Med Surg (Lond) 2024; 86:2848-2855. [PMID: 38694287 PMCID: PMC11060298 DOI: 10.1097/ms9.0000000000002016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 03/18/2024] [Indexed: 05/04/2024] Open
Abstract
Vascular calcification is an important hallmark of atherosclerosis. Coronary artery calcification (CAC) implies the presence of coronary artery disease (CAD), irrespective of risk factors or symptoms, is concomitant with the development of advanced atherosclerosis. Coronary thrombosis is the most common clinical end event leading to acute coronary syndrome (ACS). The least common type of pathology associated with thrombosis is the calcified nodule (CN). It usually occurs in elderly patients with severely calcified and tortuous arteries. The prevalence of calcified nodules in patients with ACS may be underestimated due to the lack of easily recognisable diagnostic methods. In this review, the authors will focus on the classification, clinical significance, pathogenesis, and diagnostic evaluation and treatment of CAC to further explore the clinical significance of CN.
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Affiliation(s)
| | - Xue-Bo Liu
- Department of Cardiology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
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2
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Tajani A, Sadeghi M, Omidkhoda N, Mohammadpour AH, Samadi S, Jomehzadeh V. The association between C-reactive protein and coronary artery calcification: a systematic review and meta-analysis. BMC Cardiovasc Disord 2024; 24:204. [PMID: 38600488 PMCID: PMC11007925 DOI: 10.1186/s12872-024-03856-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 03/25/2024] [Indexed: 04/12/2024] Open
Abstract
BACKGROUND While coronary artery calcification (CAC) is recognized as a reliable marker for coronary atherosclerosis, the relationship between the concentration of C-reactive protein (CRP) and the incidence and progression of CAC remains controversial. METHOD PubMed, Embase, Web of Science, and Scopus were systematically searched to identify relevant observational studies until October 2023. The methodological quality of the included studies was evaluated using the Newcastle-Ottawa Scale (NOS). A random-effects meta-analysis was employed to calculate pooled odd ratios (OR) and corresponding 95% confidence intervals, considering heterogeneity among the studies. RESULTS Out of the 2545 records, 42 cross-sectional and 9 cohort studies were included in the systematic review. The meta-analysis on 12 eligible cross-sectional studies revealed no significant association between CAC and CRP [pooled OR: 1.03 (1.00, 1.06)]. Additionally, an insignificant association was found between CAC and CRP through meta-analysis on three eligible cohort studies [pooled OR: 1.05 (0.95, 1.15)] with no considerable heterogeneity across studies. Sensitivity analyses indicated that the meta-analysis models were robust. There was no evidence of publication bias. CONCLUSION Based on the meta-analysis findings, elevated levels of CRP did not emerge as a valuable prognostic maker for CAC incidence and progression prediction.
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Affiliation(s)
- Amirhossein Tajani
- Department of Clinical Pharmacy, School of Pharmacy, Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Masoumeh Sadeghi
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Navid Omidkhoda
- Department of Clinical Pharmacy, School of Pharmacy, Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Hooshang Mohammadpour
- Department of Clinical Pharmacy, School of Pharmacy, Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sara Samadi
- Department of Internal Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Vahid Jomehzadeh
- Department of Surgery, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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Belur AD, Solankhi N, Sharma R. Management of coronary artery disease in patients with aortic stenosis in the era of transcatheter aortic valve replacement. Front Cardiovasc Med 2023; 10:1139360. [PMID: 37408653 PMCID: PMC10318168 DOI: 10.3389/fcvm.2023.1139360] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 05/30/2023] [Indexed: 07/07/2023] Open
Abstract
Aortic stenosis (AS) is a common valve disorder among the elderly, and these patients frequently have concomitant coronary artery disease (CAD). Risk factors for calcific AS are similar to those for CAD. Historically, the treatment of these conditions involved simultaneous surgical replacement of the aortic valve (AV) with coronary artery bypass grafting. Since the advancement of transcatheter AV therapies, there have been tremendous advancements in the safety, efficacy, and feasibility of this procedure with expanding indications. This has led to a paradigm shift in our approach to the patient with AS and concomitant CAD. Data regarding the management of CAD in patients with AS are largely limited to single-center studies or retrospective analyses. This article aims to review available literature around the management of CAD in patients with AS and assist in the current understanding in approaches toward management.
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Affiliation(s)
- Agastya D. Belur
- Cardiovascular Disease Fellowship Program, University of Louisville School of Medicine, Louisville, KY, United States
| | - Naresh Solankhi
- Jewish Hospital Cardiology, University of Louisville Jewish Hospital, Louisville, KY, United States
| | - Ravi Sharma
- Jewish Hospital Cardiology, University of Louisville Jewish Hospital, Louisville, KY, United States
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Kim H, Lee CJ, Ahn SH, Lee KS, Lee BK, Baik SJ, Kim SU, Lee JI. MAFLD Predicts the Risk of Cardiovascular Disease Better than NAFLD in Asymptomatic Subjects with Health Check-Ups. Dig Dis Sci 2022; 67:4919-4928. [PMID: 35579799 DOI: 10.1007/s10620-022-07508-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/07/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIM Metabolic dysfunction-associated fatty liver disease (MAFLD) was proposed to compensate for the conventional concept of nonalcoholic fatty liver disease (NAFLD). We investigated the superiority of MAFLD versus NAFLD in predicting the risk of atherosclerotic cardiovascular disease (ASCVD). METHODS A total of 2,144 subjects without a history of ASCVD, who underwent a comprehensive medical health check-up, were selected for the study. The associations between fatty liver status and coronary risk surrogates, such as coronary artery calcium score (CACS), coronary artery disease, quantitative stenosis grade, and 10-year ASCVD risk, were analyzed. RESULTS MAFLD and NAFLD were identified in 995 (46.4%) and 891 (41.6%) subjects, respectively. Subjects with MAFLD or NAFLD were more likely to be male and had a significantly higher prevalence of central obesity, obesity, hypertension, diabetes, and dyslipidemia (all, p < 0.05) than their counterparts. In terms of coronary risk surrogates, the MAFLD or NAFLD population had a significantly higher proportion of subjects with CACS > 100, coronary artery disease, higher grade of coronary artery stenosis, and higher 10-year ASCVD risk (all, p < 0.05) than their counterparts. Multivariable logistic regression models showed an independent association between MAFLD/NAFLD and coronary risk surrogates (all, p < 0.05). However, NAFLD only, defined as 'NAFLD, but not MAFLD,' was not associated with an increased coronary risk, compared to MAFLD. CONCLUSIONS Although both MAFLD and NAFLD discriminated different ASCVD risks, MAFLD predicted the risk of ASCVD better than NAFLD in asymptomatic subjects who underwent medical health check-ups.
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Affiliation(s)
- Hyoeun Kim
- Department of Health Promotion, Severance Health Check-Up, Severance Hospital, Yonsei University Health System, Seoul, Korea
| | - Chan Joo Lee
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Hoon Ahn
- Department of Internal Medicine, Yonsei University College of Medicine, Yonsei-ro 50-1, Seodaemun-gu, Seoul, Republic of Korea
- Yonsei Liver Center, Severance Hospital, Seoul, Korea
| | - Kwan Sik Lee
- Department of Internal Medicine, Yonsei University College of Medicine, Yonsei-ro 50-1, Seodaemun-gu, Seoul, Republic of Korea
- Division of Gastroenterology and Hepatology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Byoung Kwon Lee
- Division of Cardiology, Heart Center, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Su Jung Baik
- Healthcare Research Team, Health Promotion Center, Gangnam Severance Hospital, Seoul, Korea
| | - Seung Up Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Yonsei-ro 50-1, Seodaemun-gu, Seoul, Republic of Korea.
- Yonsei Liver Center, Severance Hospital, Seoul, Korea.
| | - Jung Il Lee
- Department of Internal Medicine, Yonsei University College of Medicine, Yonsei-ro 50-1, Seodaemun-gu, Seoul, Republic of Korea
- Division of Gastroenterology and Hepatology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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Kragholm K, Rasmussen JG, Søndergaard MM, Zaremba T, Tayal B, Lindgren FL, Sejersen HM, Mortensen MB, Nørgaard BL, Jensen JM, Bøtker HE, Byrne C, Køber L, Torp-Pedersen C, Andersen NH, Søgaard P, Mamas M, Freeman P. Five-Year Outcomes After Coronary Computed Tomography Angiography (From 110,599 Patients in a Danish Nationwide Register-Based Follow-Up Study). Am J Cardiol 2022; 176:1-7. [PMID: 35606174 DOI: 10.1016/j.amjcard.2022.04.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/27/2022] [Accepted: 04/08/2022] [Indexed: 11/15/2022]
Abstract
The long-term cardiovascular risk for patients examined with coronary computed tomography angiography (CCTA) to rule out coronary heart disease compared with population controls remains unexplored. A nationwide register-based study including first-time CCTA-examined patients between 2007 and 2017 in Denmark alive 180 days post-CCTA was conducted. We evaluated 5-year outcomes of myocardial infarction (MI) or revascularization and all-cause mortality in 3 distinct CCTA-groups: (1) no post-CCTA preventive pharmacotherapy use (cholesterol-lowering drugs, antiplatelets, or anticoagulants); (2) post-CCTA preventive pharmacotherapy use; and (3) revascularization or MI within 180 days post-CCTA. For each patient group, population controls were matched on age, gender, and calendar year. Absolute risks standardized to the age, gender, selected co-morbidity, and anti-anginal pharmacotherapy distributions of the specific CCTA-examined patients and respective controls were obtained from multivariable Cox regression. Of 110,599 CCTA-examined patients, (1) 48,231 patients were not prescribed preventive pharmacotherapy 180 days post-CCTA; (2) 42,798 patients were prescribed preventive pharmacotherapy within 180 days post-CCTA; and (3) 19,570 patients were diagnosed with MI or revascularized within 180 days post-CCTA. For patient groups 1 to 3 versus respective controls, 5-year MI or revascularization risks were <0.1% versus 2.0%, <0.1% versus 3.8%, and 19.0% versus 2.5%, all p<0.001. Five-year all-cause mortality were 2.8% versus 4.2%, 5.5% versus 8.8%, and 6.7% versus 8.5%, all p <0.001. In conclusion, the 5-year MI or revascularization risk can be considered very low for CCTA-examined patients without ischemic events within 180 days post-CCTA. Conversely, CCTA-examined patients with MI or revascularization events within 180 days post-CCTA have significantly elevated 5-year MI or revascularization risk.
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Affiliation(s)
- Kristian Kragholm
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark.
| | | | | | - Tomas Zaremba
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| | - Bhupendar Tayal
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| | | | | | | | | | | | - Hans Erik Bøtker
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Christina Byrne
- Department of Cardiology, Rigshospitalet -Copenhagen University Hospital, Copenhagen, Denmark
| | - Lars Køber
- Department of Cardiology, Rigshospitalet -Copenhagen University Hospital, Copenhagen, Denmark
| | | | | | - Peter Søgaard
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| | - Mamas Mamas
- Department of Cardiology, Keele University, Stoke on Trent, England
| | - Phillip Freeman
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
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Yoshihara S. Acute coronary syndrome on non-electrocardiogram-gated contrast-enhanced computed tomography. World J Radiol 2022; 14:30-46. [PMID: 35317242 PMCID: PMC8891644 DOI: 10.4329/wjr.v14.i2.30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 12/14/2021] [Accepted: 02/16/2022] [Indexed: 02/06/2023] Open
Abstract
It is not rare for acute coronary syndrome (ACS) patients to present with symptoms that are atypical, rather than chest pain. It is sometimes difficult to achieve a definitive diagnosis of ACS for such patients who present with atypical symptoms, normal initial biomarkers of myocardial necrosis, and normal or nondiagnostic electrocardiograms (ECGs). Although cardiac CT allows for assessments of coronary artery stenosis as well as myocardial perfusion defect in patients with suspected ACS, it requires ECG gating and is usually performed with high-performance multislice CT for highly probable ACS patients. However, several recent reports have stated that ACS is detectable by myocardial perfusion defects even on routine non-ECG-gated contrast-enhanced CT. A growing number of contrast-enhanced CT scans are now being performed in emergency departments in search of pathologies responsible for a patient’s presenting symptoms. In order to avoid inappropriate management for this life-threatening event, clinicians should be aware that myocardial perfusion defect is more commonly detectable even on routine non-ECG-gated contrast-enhanced CT performed in search of other pathologies.
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Affiliation(s)
- Shu Yoshihara
- Department of Diagnostic Radiology, Iwata City Hospital, Iwata 438-8550, Japan
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Mansour HH, Alajerami YS, Abushab KM, Quffa KM. The diagnostic accuracy of coronary computed tomography angiography in patients with and without previous coronary interventions. J Med Imaging Radiat Sci 2022; 53:81-86. [PMID: 34987013 DOI: 10.1016/j.jmir.2021.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/28/2021] [Accepted: 10/18/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Invasive coronary angiography (ICA) is the gold standard for imaging coronary arteries and the severity of coronary artery disease (CAD). Coronary computed tomography angiography (CCTA) has undergone remarkable progress in the diagnosis of CAD. OBJECTIVES To evaluate the effect of prior vs no previous coronary interventions on the diagnostic accuracy of CCTA as an alternative to ICA to improve health outcomes for patients with suspected CAD. METHODS A prospective cohort study was carried out among patients suspected of CAD and for evaluation of grafts and stents to investigate recurrent ischemic symptoms. 120 patients imaged by CCTA were then referred to ICA, which is considered the gold standard. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of CCTA were assessed relative to ICA. RESULTS Based on a per-patient analysis, the comparison with ICA reveals variations in sensitivity, specificity, PPV, NPV and accuracy of CCTA. In patients without any previous coronary interventions, the sensitivity was 97.8%, and specificity was 95.6%. The PPV and NPV were 97.8% and 95.5%, respectively. Regarding patients with coronary artery bypass grafts (CABG), the sensitivity was 95% and specificity 100%. The PPV and NPV were 100% and 90.9%, respectively. Regarding patients with prior percutaneous coronary intervention (PCI), the results were a sensitivity of 84.6%, specificity of 77.8%, PPV of 84.6% and NPV of 77.8%. CONCLUSION CCTA is a powerful diagnostic tool, especially for the evaluation of the major coronary arteries and evaluation of patients with prior CABG. ICA is recommended for evaluation of patients with an intracoronary stent.
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Affiliation(s)
- Husam H Mansour
- Radiology Department, Al-Shifa Hospital, Gaza-Palestine, Palestine; Medical Imaging Department, Al-Azhar University, Gaza-Palestine, Palestine.
| | - Yasser S Alajerami
- Medical Imaging Department, Al-Azhar University, Gaza-Palestine, Palestine
| | - Khaled M Abushab
- Medical Imaging Department, Al-Azhar University, Gaza-Palestine, Palestine
| | - Khetam M Quffa
- Medical Imaging Department, Al-Azhar University, Gaza-Palestine, Palestine
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Diabetic Retinopathy and Skin Tissue Advanced Glycation End Products Are Biomarkers of Cardiovascular Events in Type 2 Diabetic Patients. J Pers Med 2021; 11:jpm11121344. [PMID: 34945815 PMCID: PMC8707336 DOI: 10.3390/jpm11121344] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 11/30/2021] [Accepted: 12/05/2021] [Indexed: 12/13/2022] Open
Abstract
Risk of cardiovascular events is not homogeneous in subjects with type 2 diabetes; therefore, its early identification remains a challenge to be met. The aim of this study is to evaluate whether the presence of diabetic retinopathy and accumulation of advanced glycation end-products in subcutaneous tissue can help identify patients at high risk of cardiovascular events. For this purpose, we conducted a prospective study (mean follow-up: 4.35 years) comprising 200 subjects with type 2 diabetes with no history of clinical cardiovascular disease and 60 non-diabetic controls matched by age and sex. The primary outcome was defined as the composite of myocardial infarction, coronary revascularization, stroke, lower limb amputation or cardiovascular death. The Cox proportional hazard multiple regression analysis was used to determine the independent predictors of cardiovascular events. The patients with type 2 diabetes had significantly more cardiovascular events than the non-diabetic subjects. Apart from the classic factors such as age, sex and coronary artery calcium score, we observed that the diabetic retinopathy and advanced glycation end-products in subcutaneous tissue were independent predictors of cardiovascular events. We conclude that the diabetic retinopathy and advanced glycation end-products in subcutaneous tissue could be useful biomarkers for selecting type 2 diabetic patients in whom the screening for cardiovascular disease should be prioritized, thereby creating more personalized and cost-effective medicine.
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Planas A, Simó-Servat O, Bañeras J, Sánchez M, García E, Ortiz ÁM, Ruiz-Meana M, Hernández C, Ferreira-González I, Simó R. Usefulness of skin advanced glycation end products to predict coronary artery calcium score in patients with type 2 diabetes. Acta Diabetol 2021; 58:1403-1412. [PMID: 34032928 DOI: 10.1007/s00592-021-01735-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 05/04/2021] [Indexed: 01/02/2023]
Abstract
AIM The early identification of type 2 diabetic (T2D) patients at risk of developing coronary artery disease (CAD) remains a challenge. The coronary artery calcium score (CACs) is considered the most sensitive tool for assessing CAD risk in diabetic population, and the identification of a more targeted population in which the CACs would be more cost-efficient seems warranted. The accumulation of advanced glycation end products plays an important role in the pathogenesis of cardiovascular disease (CVD) in patients with diabetes. The aim of this study was to evaluate whether the assessment of skin autofluorescence (SAF) could be useful tool to identify those diabetic patients in whom CACs assessment should be prioritized. METHODS Prospective case-control study, comprising 156 subjects with T2D with no history of clinical CVD and 52 non-diabetic subjects matched by age. A value of CACs ≥ 400 Agatston Units (AU) was considered as "high CVD risk." Logistic regression analysis to predict a CACs ≥ 400 AU was performed. Sensibility and specificity were calculated using the optimal cutoff point based on ROC curve. RESULTS T2D patients had higher value of SAF compared to controls (p = 0.011). Among subjects with diabetes, 122 presented CACs < 400 AU and 35 CACs ≥ 400 AU. SAF values were significantly higher among the group with CACs ≥ 400AU compared to patients with CACs < 400 (2.96 ± 0.86 vs. 2.59 ± 0.57; p = 0.0035). The logistic regression analysis showed that age, HDL-cholesterol and SAF values were independently related to CACs ≥ 400UA. CONCLUSION Our finding suggests that SAF could be useful in selecting T2D patients in whom the screening for CAD by means of CACs assessment would be more cost-effective.
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Affiliation(s)
- Alejandra Planas
- Diabetes and Metabolism Research Unit, Vall d'Hebron Research Institute (VHIR), Vall d'Hebron University Hospital, Autonomous University of Barcelona, Pg. Vall d'Hebron 119-129, 08035, Barcelona, Spain
- CIBER en Diabetes y Enfermedades Metabólicas (CIBERDEM), Spanish Institute of Health (ISCIII), Madrid, Spain
| | - Olga Simó-Servat
- Diabetes and Metabolism Research Unit, Vall d'Hebron Research Institute (VHIR), Vall d'Hebron University Hospital, Autonomous University of Barcelona, Pg. Vall d'Hebron 119-129, 08035, Barcelona, Spain
- CIBER en Diabetes y Enfermedades Metabólicas (CIBERDEM), Spanish Institute of Health (ISCIII), Madrid, Spain
| | - Jordi Bañeras
- Cardiology Department, Vall d'Hebron University Hospital and Research Institute, Autonomous University of Barcelona, Barcelona, Spain
- CIBER en Epidemiología y Salud Pública (CIBERESP), Spanish Institute of Health (ISCIII), Madrid, Spain
| | - Mónica Sánchez
- Diabetes and Metabolism Research Unit, Vall d'Hebron Research Institute (VHIR), Vall d'Hebron University Hospital, Autonomous University of Barcelona, Pg. Vall d'Hebron 119-129, 08035, Barcelona, Spain
| | - Esther García
- Diabetes and Metabolism Research Unit, Vall d'Hebron Research Institute (VHIR), Vall d'Hebron University Hospital, Autonomous University of Barcelona, Pg. Vall d'Hebron 119-129, 08035, Barcelona, Spain
| | - Ángel M Ortiz
- Diabetes and Metabolism Research Unit, Vall d'Hebron Research Institute (VHIR), Vall d'Hebron University Hospital, Autonomous University of Barcelona, Pg. Vall d'Hebron 119-129, 08035, Barcelona, Spain
- CIBER en Diabetes y Enfermedades Metabólicas (CIBERDEM), Spanish Institute of Health (ISCIII), Madrid, Spain
| | - Marisol Ruiz-Meana
- Cardiology Department, Vall d'Hebron University Hospital and Research Institute, Autonomous University of Barcelona, Barcelona, Spain
- CIBER-CV, Spanish Institute of Health (ISCIII), Madrid, Spain
| | - Cristina Hernández
- Diabetes and Metabolism Research Unit, Vall d'Hebron Research Institute (VHIR), Vall d'Hebron University Hospital, Autonomous University of Barcelona, Pg. Vall d'Hebron 119-129, 08035, Barcelona, Spain
- CIBER en Diabetes y Enfermedades Metabólicas (CIBERDEM), Spanish Institute of Health (ISCIII), Madrid, Spain
| | - Ignacio Ferreira-González
- Cardiology Department, Vall d'Hebron University Hospital and Research Institute, Autonomous University of Barcelona, Barcelona, Spain
- CIBER en Epidemiología y Salud Pública (CIBERESP), Spanish Institute of Health (ISCIII), Madrid, Spain
| | - Rafael Simó
- Diabetes and Metabolism Research Unit, Vall d'Hebron Research Institute (VHIR), Vall d'Hebron University Hospital, Autonomous University of Barcelona, Pg. Vall d'Hebron 119-129, 08035, Barcelona, Spain.
- CIBER en Diabetes y Enfermedades Metabólicas (CIBERDEM), Spanish Institute of Health (ISCIII), Madrid, Spain.
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10
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Nakahara T, Narula J, Fox JJ, Jinzaki M, Strauss HW. Temporal relationship between 18F-sodium fluoride uptake in the abdominal aorta and evolution of CT-verified vascular calcification. J Nucl Cardiol 2021; 28:1936-1945. [PMID: 31741329 DOI: 10.1007/s12350-019-01934-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 09/26/2019] [Indexed: 11/29/2022]
Abstract
BACKGROUND Fluoride-18 sodium fluoride (18F-NaF) localizes in microcalcifications in atheroma. The microcalcifications may aggregate, passing the resolution threshold to visualize on computed tomography (CT). We evaluated serial NaF positron emission tomography (PET)-CT scans to determine the temporal relationship between vascular NaF uptake and CT evident calcification in the abdominal aorta. METHODS Prostate cancer patients who had at least 3 NaF PET-CT scans over at least 1.5 years were retrospectively enrolled. Regions of interest were traced in the abdominal aorta on both PET and CT images, excluding skeletal NaF activity. The maximum standardized uptake value (SUVmax) of NaF and the density and volume of calcium (exceeding 130 HU) were summed and divided by the number of slices to produce the SUVmax/slice and the mm3·slice-1 of calcium. RESULTS Of 437 patients, 45 patients met criteria. NaF uptake waxed and waned between scans, while the calcium volume plateaued or increased over time. NaF uptake correlated with calcium volume on the baseline scan (P = .60, < .0001†) and calcium volume increment, especially from 1.0 to 1.5 years (r = .79, P < .0001†). Patients with persistently high NaF uptake showed a higher calcium volume increment (0-1.5 years) than patients with low or transiently high NaF uptake. CONCLUSIONS Abdominal aortic NaF uptake varied over time. NaF uptake on the baseline scans and high NaF uptake on the serial scans preceded an increase in calcium volume, especially by 1.0-1.5 years. Persistently high NaF uptake was associated with a greater increment in calcium volume than patients with transiently elevated or persistently low fluoride uptake.
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Affiliation(s)
- Takehiro Nakahara
- Division of Cardiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Molecular Imaging and Therapy Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Radiology, Keio University School of Medicine, Tokyo, Japan
| | - Jagat Narula
- Division of Cardiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Josef J Fox
- Molecular Imaging and Therapy Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Masahiro Jinzaki
- Department of Radiology, Keio University School of Medicine, Tokyo, Japan
| | - H William Strauss
- Division of Cardiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
- Molecular Imaging and Therapy Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- Department of Radiology, Keio University School of Medicine, Tokyo, Japan.
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11
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Liu Y, Liu S, Zhao Z, Song X, Qu H, Liu H. Phenylacetylglutamine is associated with the degree of coronary atherosclerotic severity assessed by coronary computed tomographic angiography in patients with suspected coronary artery disease. Atherosclerosis 2021; 333:75-82. [PMID: 34438323 DOI: 10.1016/j.atherosclerosis.2021.08.029] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 06/21/2021] [Accepted: 08/12/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Phenylacetylglutamine (PAG), a gut microbiota metabolite, has recently been found to be associated with major adverse cardiovascular events. In this study, we analyzed the relationship between plasma PAG and coronary atherosclerotic severity assessed by coronary computed tomographic angiography (CCTA). METHODS We enrolled consecutive patients with suspected coronary artery disease (CAD) who underwent CCTA. Plasma PAG was measured by mass spectrometry. Coronary atherosclerotic severity was evaluated based on plaque burden and plaque vulnerability. Plaque burden was quantified as percent atheroma volume (PAV), CCTA-derived SYNTAX score (CT-SYNTAX) and CAD reporting and data system score (CAD-RADS). Plaque vulnerability was evaluated by the presence of adverse characteristics. RESULTS A total of 686 patients were enrolled. The patients were divided into two groups based on median plasma PAG (3.25 μM). A correlation was found between plasma PAG and PAV (r = 0.499, p < 0.01). Patients with obstructive CAD (CAD-RADS>3) and high coronary lesion complexity (CT-SYNTAX≥23) had higher plasma PAG (2.04 vs. 3.8 μM and 2.85 vs. 4.49 μM, respectively; p < 0.01 for all). After adjustment for confounding factors, plasma PAG remained associated with PAV (β: 0.98, p < 0.01), and patients in the higher PAG group had higher risks of obstructive CAD (odds ratio [OR]: 1.88, p < 0.01) and high coronary lesion complexity (OR: 1.47; p < 0.01). In addition, a high plasma PAG level (≥3.25 μM) was not an independent predictor of the presence of high-risk plaques. CONCLUSIONS There was an independent association between plasma PAG levels and the coronary atherosclerotic burden among patients with suspected CAD.
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Affiliation(s)
- Yang Liu
- Medical School of Chinese People's Liberation Army, Beijing, China; Department of Cardiology, The 2nd Medical Center, Chinese People's Liberation Army General Hospital, Beijing, China; National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Shaoyan Liu
- Department of Cardiology, Laiyang Central Hospital, Yantai, China
| | - Zhizhuang Zhao
- Department of Geriatrics, Hainan Hospital, Chinese People's Liberation Army General Hospital, Sanya, China
| | - Xiang Song
- Department of Radiology, Hainan Hospital, Chinese People's Liberation Army General Hospital, Sanya, China
| | - Haixian Qu
- Department of Radiology, Hainan Hospital, Chinese People's Liberation Army General Hospital, Sanya, China
| | - Hongbin Liu
- Medical School of Chinese People's Liberation Army, Beijing, China; Department of Cardiology, The 2nd Medical Center, Chinese People's Liberation Army General Hospital, Beijing, China; National Clinical Research Center for Geriatric Diseases, Beijing, China; Beijing Key Laboratory of Chronic Heart Failure Precision Medicine, Beijing, China.
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Baumgarten R, Cerci RJ, de Nadai Costa A, Pereira-Neto CC, Prado P, Zapparoli M, Masukawa M, Cerci JJ, Vitola JV, Fernandes-Silva MM. Radiation exposure after myocardial perfusion imaging with Cadmium-Zinc-Telluride camera versus conventional camera. J Nucl Cardiol 2021; 28:992-999. [PMID: 32410061 DOI: 10.1007/s12350-020-02146-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 03/27/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND Patient exposure to radiation during the management of coronary heart disease (CHD) can be reduced with more efficient technologies in nuclear medicine, such as the Cadmium-Zinc-Telluride (CZT) gamma-camera for myocardial perfusion imaging (MPI) studies. However, it has been suggested that CZT has lower specificity, which might lead to more downstream radiological procedures, particularly among obese individuals. METHODS AND RESULTS We evaluated 244 patients with suspected CHD who underwent CZT-SPECT and matched 1:1 according to sex, age, and body mass index (BMI) with those undergoing MPI study with the Anger gamma-camera (Anger-SPECT). The outcome was the total radiation exposure from the MPI study added to the radiation exposure from all subsequent cardiac examinations during a 90-day follow-up. The total radiation dose after 90 days was significantly lower in the CZT-SPECT group (6.4 ± 4.8 vs 9.5±4.9 mSv, P < .001). After adjusting for potential confounders, CZT-SPECT remained associated with lower total radiation dose, but it significantly attenuated among obese individuals (Beta coefficient - 3.73 ± 0.86 for BMI < 30 vs - 2.30 ± 0.92 for BMI ≥ 30 Kg/m2, P for interaction < 0.032). CONCLUSIONS CZT-SPECT was associated with lower total radiation doses compared to Anger-SPECT, albeit this benefit may be attenuated in obese individuals.
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Affiliation(s)
- Ricardo Baumgarten
- Quanta Diagnóstico por Imagem, 1000 Almirante Tamandare street, Curitiba, PR, 80045170, Brazil
| | - Rodrigo Julio Cerci
- Quanta Diagnóstico por Imagem, 1000 Almirante Tamandare street, Curitiba, PR, 80045170, Brazil
| | - Amanda de Nadai Costa
- Quanta Diagnóstico por Imagem, 1000 Almirante Tamandare street, Curitiba, PR, 80045170, Brazil
| | | | - Pedro Prado
- Quanta Diagnóstico por Imagem, 1000 Almirante Tamandare street, Curitiba, PR, 80045170, Brazil
| | - Marcello Zapparoli
- Quanta Diagnóstico por Imagem, 1000 Almirante Tamandare street, Curitiba, PR, 80045170, Brazil
| | - Margaret Masukawa
- Quanta Diagnóstico por Imagem, 1000 Almirante Tamandare street, Curitiba, PR, 80045170, Brazil
| | - Juliano Julio Cerci
- Quanta Diagnóstico por Imagem, 1000 Almirante Tamandare street, Curitiba, PR, 80045170, Brazil
| | - João Vicente Vitola
- Quanta Diagnóstico por Imagem, 1000 Almirante Tamandare street, Curitiba, PR, 80045170, Brazil
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2020 ACC/AHA guideline for the management of patients with valvular heart disease: A report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines. J Thorac Cardiovasc Surg 2021; 162:e183-e353. [PMID: 33972115 DOI: 10.1016/j.jtcvs.2021.04.002] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Prasad K, Chhikara S, Kumar MN, Gupta A. Left anterior descending/right coronary artery bifurcation angioplasty in a rare case of single coronary artery: a case report. Eur Heart J Case Rep 2021; 5:ytab047. [PMID: 34124540 PMCID: PMC8188865 DOI: 10.1093/ehjcr/ytab047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/05/2021] [Accepted: 01/19/2021] [Indexed: 11/20/2022]
Abstract
Background Single coronary artery (SCA) is a rare congenital coronary anomaly with incidence of 8–66 per 100 000 cases. Percutaneous coronary intervention (PCI) in patients with SCA is technically challenging. This is a case of bifurcation angioplasty involving left anterior descending/right coronary artery (LAD/RCA) in a patient with SCA and 1-year follow-up with computed tomography coronary angiography (CTCA). Case summary A 52-year-old female with history of PCI to LAD 4 months back, presented with non-ST-elevation myocardial infarction. Coronary angiogram showed 90% stenosis in mid-LAD, distal to the previous stent and proximal to an anomalously originating RCA from mid-LAD. She was planned for LAD/RCA provisional bifurcation angioplasty and a drug-eluting stent was deployed in LAD across RCA, following which patient developed angina with ischaemic electrocardiogram (ECG) changes due to significant pinching of RCA. Using Reverse crush technique, RCA was stented successfully with resolution of angina and ECG changes. At 1-year follow-up, patient is in New York Heart Association class I with normal left ventricular function and patent LAD/RCA bifurcation stent on CTCA. Discussion SCA poses a great challenge to interventional cardiologists during PCI, especially in the event of a complication. Detailed anatomical knowledge, appropriate hardware and operator expertise are the key factors for successful PCI of SCA. This is, to the best of our knowledge, the first case report of bifurcation angioplasty of LAD/RCA in a rare case of SCA. This case also describes the use of reverse crush technique as a bailout strategy during provisional bifurcation angioplasty.
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Affiliation(s)
| | | | | | - Ankush Gupta
- Professor of Medicine & Interventional Cardiologist, Department of Cardiology, Military Hospital, Jaipur-302016, India
- Corresponding author. Tel: +91 9592903488, Fax: +91 9592903488,
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Cardiac-CT with the newest CT scanners: An incoming screening tool for competitive athletes? Clin Imaging 2021; 78:74-92. [PMID: 33773447 DOI: 10.1016/j.clinimag.2021.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 02/18/2021] [Accepted: 03/05/2021] [Indexed: 11/20/2022]
Abstract
Competitive athletes of all skill levels are at risk of sudden cardiac death (SCD) due to certain heart conditions. Prior to engagement in high-intensity athletics, it is necessary to screen for these conditions in order to prevent sudden cardiac death. Cardiac-CT angiography (CCTA) is a reliable tool to rule out the leading causes of SCD by providing an exceptional overview of vascular and cardiac morphology. This allows CCTA to be a powerful resource in identifying cardiac anomalies in selected patients (i.e. unclear symptoms or findings at ECG or echocardiography) as well as to exclude significant coronary artery disease (CAD). With the advancement of technology over the last few years, the latest generations of computed tomography (CT) scanners provide better image quality at lower radiation exposures. With the amount of radiation exposure per scan now reaching the sub-millisievert range, the number of CT examinations it is supposed to increase greatly, also in the athlete's population. It is thus necessary for radiologists to have a clear understanding of how to make and interpret a CCTA examination so that these studies may be performed in a responsible and radiation conscious manner especially when used in the younger populations. Our work aims to illustrate the main radiological findings of CCTAs and highlight their clinical impact with some case studies. We also briefly describe critical features of state-of-the-art CT scanners that optimize different acquisitions to obtain the best quality at the lowest possible dose.
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Otto CM, Nishimura RA, Bonow RO, Carabello BA, Erwin JP, Gentile F, Jneid H, Krieger EV, Mack M, McLeod C, O'Gara PT, Rigolin VH, Sundt TM, Thompson A, Toly C. 2020 ACC/AHA Guideline for the Management of Patients With Valvular Heart Disease: A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines. Circulation 2021; 143:e72-e227. [PMID: 33332150 DOI: 10.1161/cir.0000000000000923] [Citation(s) in RCA: 544] [Impact Index Per Article: 181.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Otto CM, Nishimura RA, Bonow RO, Carabello BA, Erwin JP, Gentile F, Jneid H, Krieger EV, Mack M, McLeod C, O'Gara PT, Rigolin VH, Sundt TM, Thompson A, Toly C. 2020 ACC/AHA Guideline for the Management of Patients With Valvular Heart Disease: A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines. J Am Coll Cardiol 2021; 77:e25-e197. [PMID: 33342586 DOI: 10.1016/j.jacc.2020.11.018] [Citation(s) in RCA: 782] [Impact Index Per Article: 260.7] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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End-to-End, Pixel-Wise Vessel-Specific Coronary and Aortic Calcium Detection and Scoring Using Deep Learning. Diagnostics (Basel) 2021; 11:diagnostics11020215. [PMID: 33540660 PMCID: PMC7913112 DOI: 10.3390/diagnostics11020215] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/28/2021] [Accepted: 01/28/2021] [Indexed: 01/08/2023] Open
Abstract
Conventional scoring and identification methods for coronary artery calcium (CAC) and aortic calcium (AC) result in information loss from the original image and can be time-consuming. In this study, we sought to demonstrate an end-to-end deep learning model as an alternative to the conventional methods. Scans of 377 patients with no history of coronary artery disease (CAD) were obtained and annotated. A deep learning model was trained, tested and validated in a 60:20:20 split. Within the cohort, mean age was 64.2 ± 9.8 years, and 33% were female. Left anterior descending, right coronary artery, left circumflex, triple vessel, and aortic calcifications were present in 74.87%, 55.82%, 57.41%, 46.03%, and 85.41% of patients respectively. An overall Dice score of 0.952 (interquartile range 0.921, 0.981) was achieved. Stratified by subgroups, there was no difference between male (0.948, interquartile range 0.920, 0.981) and female (0.965, interquartile range 0.933, 0.980) patients (p = 0.350), or, between age <65 (0.950, interquartile range 0.913, 0.981) and age ≥65 (0.957, interquartile range 0.930, 0.9778) (p = 0.742). There was good correlation and agreement for CAC prediction (rho = 0.876, p < 0.001), with a mean difference of 11.2% (p = 0.100). AC correlated well (rho = 0.947, p < 0.001), with a mean difference of 9% (p = 0.070). Automated segmentation took approximately 4 s per patient. Taken together, the deep-end learning model was able to robustly identify vessel-specific CAC and AC with high accuracy, and predict Agatston scores that correlated well with manual annotation, facilitating application into areas of research and clinical importance.
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Otto CM, Nishimura RA, Bonow RO, Carabello BA, Erwin JP, Gentile F, Jneid H, Krieger EV, Mack M, McLeod C, O’Gara PT, Rigolin VH, Sundt TM, Thompson A, Toly C. 2020 ACC/AHA Guideline for the Management of Patients With Valvular Heart Disease: Executive Summary. J Am Coll Cardiol 2021; 77:450-500. [DOI: 10.1016/j.jacc.2020.11.035] [Citation(s) in RCA: 272] [Impact Index Per Article: 90.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Pérez de Isla L, Alonso R, Gómez de Diego JJ, Muñiz-Grijalvo O, Díaz-Díaz JL, Zambón D, Miramontes JP, Fuentes F, de Andrés R, Werenitzky J, Padró T, Saltijeral A, Mata P. Coronary plaque burden, plaque characterization and their prognostic implications in familial hypercholesterolemia: A computed tomographic angiography study. Atherosclerosis 2020; 317:52-58. [PMID: 33261814 DOI: 10.1016/j.atherosclerosis.2020.11.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 10/20/2020] [Accepted: 11/12/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIMS Heterozygous familial hypercholesterolemia (FH) is associated with premature atherosclerotic cardiovascular disease. Semi-automated plaque characterization (SAPC) by coronary computed tomographic angiography (CTA) provides information regarding coronary plaque burden and plaque characterization. Our aim was to quantify and characterize the coronary plaque burden of patients with FH using SAPC analysis and to identify which factors are related to plaque burden and plaque characteristics. A second aim was to analyse the prognostic implications of these parameters. METHODS Two hundred and fifty-nine asymptomatic individuals with molecularly determined FH were enrolled in this follow-up cohort study and underwent a coronary CTA analysed with SAPC. RESULTS Mean follow-up time after coronary CTA was 3.9 ± 2 years. Mean age was 46.9 (10.7) years (130 women, 50.2%). Median plaque burden was 25.0% (19.0-29.0), non-calcified plaque burden 22.83% (17.94-26.88), calcified plaque-burden 1.12% (0.31-2.86) and CCS 8.9 (0-93). Five-year risk was independently related to plaque burden, non-calcified plaque burden, calcified plaque burden and coronary calcium score (B:3.75, 95%CI:2.92-4.58; p < 0.001, B:2.9, 95%CI:2.15-3.66; p < 0.001, B:0.75, 95%CI 0.4-1.1; p < 0.001 and B:82.2, 95%CI:49.28-115.16; p < 0.001 respectively). During follow-up, there were 15 (5.81%) nonfatal events and 1 (0.4%) fatal event. Plaque burden was significantly related to event-free survival during follow-up (HR:1.11; 95%CI:1.05-1.18; p < 0.001). CONCLUSIONS Coronary atherosclerosis and its qualitative components may be quantified by means of SAPC in patients with FH. Plaque burden, calcified plaque burden and non-calcified plaque burden were independently related to the estimated cardiovascular risk. Plaque burden was also related to prognosis.
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Affiliation(s)
- Leopoldo Pérez de Isla
- Cardiology Department, Hospital Clínico San Carlos, IDISSC, Facultad de Medicina Universidad Complutense, Madrid, Spain; Fundación Hipercolesterolemia Familiar, Madrid, Spain.
| | - Rodrigo Alonso
- Fundación Hipercolesterolemia Familiar, Madrid, Spain; Center for Advanced Metabolic Medicine and Nutrition, Santiago de Chile, Chile
| | - José Juan Gómez de Diego
- Cardiology Department, Hospital Clínico San Carlos, IDISSC, Facultad de Medicina Universidad Complutense, Madrid, Spain
| | | | | | - Daniel Zambón
- Lipids Clinic. Department of Endocrinology, Hospital Clinic, (IDIBAPS) Institut D'Investigacions Biomèdiques August Pi I Sunyer University of Barcelona, Barcelona, Spain
| | | | - Francisco Fuentes
- Lipids and Atherosclerosis Unit, CIBERObn, IMIBIC/Reina Sofia University Hospital/University of Cordoba, Spain
| | | | - José Werenitzky
- Cardiology Department, Hospital Clínico San Carlos, IDISSC, Facultad de Medicina Universidad Complutense, Madrid, Spain
| | - Teresa Padró
- Programa-ICCC Cardiovascular, Institut de Recerca Del Hospital Santa Creu I Sant Pau, IIB Santa Pau, Barcelona, Spain
| | - Adriana Saltijeral
- Cardiology Department, Hospital Del Tajo, Aranjuez, Universidad Alfonso X El Sabio, Madrid, Spain
| | - Pedro Mata
- Fundación Hipercolesterolemia Familiar, Madrid, Spain.
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Lin ZX, Zhou F, Schoepf UJ, Pillai B, Zhou CS, Quan W, Bao XQ, Lu GM, Zhang LJ. Tube Voltage, DNA Double-Strand Breaks, and Image Quality in Coronary CT Angiography. Korean J Radiol 2020; 21:967-977. [PMID: 32677381 PMCID: PMC7369208 DOI: 10.3348/kjr.2019.0932] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 02/16/2020] [Accepted: 03/05/2020] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE To evaluate the effects of tube voltage on image quality in coronary CT angiography (CCTA), the estimated radiation dose, and DNA double-strand breaks (DSBs) in peripheral blood lymphocytes to optimize the use of CCTA in the era of low radiation doses. MATERIALS AND METHODS This study included 240 patients who were divided into 2 groups according to the DNA DSB analysis methods, i.e., immunofluorescence microscopy and flow cytometry. Each group was subdivided into 4 subgroups: those receiving CCTA only with different tube voltages of 120, 100, 80, or 70 kVp. Objective and subjective image quality was evaluated by analysis of variance. Radiation dosages were also recorded and compared. RESULTS There was no significant difference in demographic characteristics between the 2 groups and 4 subgroups in each group (all p > 0.05). As tube voltage decreased, both image quality and radiation dose decreased gradually and significantly. After CCTA, γ-H2AX foci and mean fluorescence intensity in the 120-, 100-, 80-, and 70-kVp groups increased by 0.14, 0.09, 0.07, and 0.06 foci per cell and 21.26, 9.13, 8.10, and 7.13 (all p < 0.05), respectively. The increase in the DNA DSB level in the 120-kVp group was higher than those in the other 3 groups (all p < 0.05), while there was no significant difference in the DSBs levels among these latter groups (all p > 0.05). CONCLUSION The 100-kVp tube voltage may be optimal for CCTA when weighing DNA DSBs against the estimated radiation dose and image quality, with further reductions in tube voltage being unnecessary for CCTA.
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Affiliation(s)
- Zhu Xiao Lin
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China.,Department of Medical Imaging, Yantaishan Hospital, Yantai, China
| | - Fan Zhou
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - U Joseph Schoepf
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China.,Division of Cardiovascular Imaging, Department of Radiology and Radiological Science, Medical University of South Carolina, Charleston, SC, USA
| | - Balakrishnan Pillai
- Division of Cardiovascular Imaging, Department of Radiology and Radiological Science, Medical University of South Carolina, Charleston, SC, USA
| | - Chang Sheng Zhou
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Wei Quan
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xue Qin Bao
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Guang Ming Lu
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Long Jiang Zhang
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China.
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Garcia AM, Assunção-Jr AN, Dantas-Jr RN, Parga JR, Ganem F. Stent evaluation by coronary computed tomography angiography: a comparison between Iopamidol-370 and Ioversol-320 hypo-osmolar iodine concentration contrasts. Br J Radiol 2020; 93:20200078. [PMID: 32816561 DOI: 10.1259/bjr.20200078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE Qualitative and quantitative image analysis between Iopamidol-370 and Ioversol-320 in stents´ evaluation by coronary computed tomography angiography (CTA). METHODS Sixty-five patients with low-risk stable angina undergoing stent follow-up with coronary CTA were assigned to Iopamidol I-370 (n = 33) or Ioversol I-320 (n = 32) in this prospective, double-blind, non-inferiority, randomized trial. Stent lumen image quality was graded by 5-point Likert Scale. Lumen mean attenuation was measured at native coronary segments: pre-stent, post-stent, distal segments and at coronary plaques. Lumen attenuation increase (LAI) ratio was calculated for all stents. Heart rate (HR) variation, premature heart beats (PHB), heat sensation (HS), blooming and beam hardening were also assessed. RESULTS Image quality was similar between groups, with no significant difference (Likert score 4.48 ± 0.75 vs 4.54 ± 0.65, p = 0.5). There were similarities in LAI ratio between I-370 and I-320 (0.39 ± 0.42 vs 0.48 ± 0.44 HU, p = 0.08). Regarding lumen mean attenuation at native coronary segments, a significant difference was observed, with I-320 presenting lower values, including contrast mean attenuation in distal segments. After statistical multivariate analysis, three variables correlated with stent image quality: 1) stent diameter, 2) HR variation and 3) stent lumen LAI ratio. CONCLUSIONS There was no significant difference between Iopamidol-370 mgI ml-1 and Ioversol-320 mgI ml-1 contrasts regarding overall stent lumen image quality, which was mainly influenced by stent diameter, HR and LAI ratio.Advances in knowledge:Coronary CTA allows adequate stents' visualization and image quality is influenced by stent diameter, HR variation and LAI ratio.Stents' image quality showed no difference between different concentration contrasts (I-370 vs. I-320); however, higher concentration contrasts may provide an improved overall visualization, especially regarding coronary distal segments.
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Ünlü S, Özden Tok Ö, Avcı Demir F, Papadopoulos K, Monaghan MJ. Differential diagnosis of apical hypertrophic cardiomyopathy and apical displacement of the papillary muscles: a multimodality imaging point of view. Echocardiography 2020; 38:103-113. [PMID: 33067903 DOI: 10.1111/echo.14895] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 09/28/2020] [Accepted: 09/28/2020] [Indexed: 12/23/2022] Open
Abstract
Apical hypertrophic cardiomyopathy (ApHCM) and apical displacement of papillary muscles (ADPM) are two different pathologies with a number of similar imaging findings that may hamper adequate diagnosis. While ApHCM is associated with increased rate of mortality, ADPM commonly presents with a benign course and differential diagnosis is of great importance. Clinical assessment and 2D echocardiography cannot sufficiently differentiate these conditions, however, and advanced echocardiographic methods may facilitate diagnosis. Although echocardiography is the first-line imaging method in the diagnostic algorithm, cardiac magnetic resonance imaging (CMRI) is the gold standard for evaluating patients due to good spatial resolution and myocardial tissue characterization abilities. When CMRI is contraindicated, cardiac computed tomography may be an alternative reliable method that can also give information about the coronary anatomy. Nuclear imaging may also provide supplementary data regarding hypertrophy and coronary arteries when there is a suspicion of ischemia.
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Affiliation(s)
- Serkan Ünlü
- Department of Cardiology, Gazi University School of Medicine, Ankara, Turkey
| | - Özge Özden Tok
- Cardiology Department, Memorial Bahçelievler Hospital, İstanbul, Turkey
| | - Fulya Avcı Demir
- Cardiology Department, Private Antalya Anatolia Hospital, Antalya, Turkey
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Mansour HH, Alajerami YS, Najim AA. Coronary computed tomography angiography versus invasive coronary angiography: medical staff perceptions and diagnostic interest in Gaza-Palestine. Ir J Med Sci 2020; 190:567-575. [PMID: 32978639 DOI: 10.1007/s11845-020-02376-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 09/22/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND Invasive coronary angiography (ICA) and coronary computed tomography angiography (CCTA) are used in the diagnosis of coronary artery disease (CAD). The medical benefits, as well as the ethical and logistical implications, should be explored, particularly in the scarcity of medical resources. We explore the perception of medical staff toward the interest of CCTA and ICA in diagnosis CAD to maximize the utility of both procedures. METHODS A triangulated observational, analytical prospective cohort study carried out among patients suspected with CAD who underwent CCTA and ICA. The quantitative part included 381 patients (250 underwent ICA and 131 underwent CCTA). The qualitative part included a purposive sample of two radiologists, three cardiologists, and two medical imaging specialists. RESULTS Low diagnostic yield of the ICA through 31.3% and 39.7% diagnosed without CAD and non-significant CAD, respectively. Risk factors such as the family history of heart disease, obesity, high cholesterol, and diabetes were with high frequency in the patients with significant CAD. The sensitivity, specificity, PPV, and NPV of CCTA technique was 94.74%, 94.23%, 92.31%, and 96.08% respectively. Cardiologist's perceptions focused on radiation concerns and difficulties for convincing patients to perform the CCTA procedure. Radiologists and medical imaging specialists focused on complete cooperation from the cardiologist to better preparation of patients to perform optimal CCTA procedures. CONCLUSION Efficient diagnostic benefits of CCTA and overuse of ICA for stable CAD are documented. Clear diagnostic strategy with medical, ethical, and logistical issues should be considered when selecting the CCTA or ICA for diagnosis CAD.
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Affiliation(s)
- Husam H Mansour
- Radiology Department, Al-Shifa Hospital, Gaza, Palestine. .,Medical Imaging Department, Al-Azhar University, Gaza, Palestine.
| | | | - Ahmed A Najim
- Nursing Department, Al-Azhar University, Gaza, Palestine
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Cost-effectiveness of stress CTP versus CTA in detecting obstructive CAD or in-stent restenosis in stented patients. Eur Radiol 2020; 31:1443-1450. [PMID: 32885295 PMCID: PMC7880924 DOI: 10.1007/s00330-020-07202-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/16/2020] [Accepted: 08/18/2020] [Indexed: 11/30/2022]
Abstract
Objectives The aim of this retrospective study was to determine cost-effectiveness of stress myocardial CT perfusion (CTP), coronary CT angiography (CTA), and the combination of both in suspected obstructive coronary artery disease (CAD) or in-stent restenosis (ISR) in patients with previous coronary stent implantation. Methods A decision model based on Markov simulations estimated lifetime costs and quality-adjusted life years (QALYs) associated with CTA, CTP, and CTA + CTP. Model input parameters were obtained from published literature. Probabilistic sensitivity analysis was performed to evaluate overall model uncertainty. A single-variable deterministic sensitivity analysis evaluated the sensitivity of the results to plausible variations in model inputs. Cost-effectiveness was assessed based on a cost-effectiveness threshold of $100,000 per QALY. Results In the base-case scenario with willingness to pay of $100,000 per QALY, CTA resulted in total costs of $47,013.87 and an expected effectiveness of 6.84 QALYs, whereas CTP resulted in total costs of $46,758.83 with 6.93 QALYs. CTA + CTP reached costs of $47,455.63 with 6.85 QALYs. Therefore, strategies CTA and CTA + CTP were dominated by CTP in the base-case scenario. Deterministic sensitivity analysis demonstrated robustness of the model to variations of diagnostic efficacy parameters and costs in a broad range. CTP was cost-effective in the majority of iterations in the probabilistic sensitivity analysis as compared with CTA. Conclusions CTP is cost-effective for the detection of obstructive CAD or ISR in patients with previous stenting and therefore should be considered a feasible approach in daily clinical practice. Key Points • CTP provides added diagnostic value in patients with previous coronary stents. • CTP is a cost-effective method for the detection of obstructive CAD or ISR in patients with previous stenting. Electronic supplementary material The online version of this article (10.1007/s00330-020-07202-z) contains supplementary material, which is available to authorized users.
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Ford TJ, Ong P, Sechtem U, Beltrame J, Camici PG, Crea F, Kaski JC, Bairey Merz CN, Pepine CJ, Shimokawa H, Berry C. Assessment of Vascular Dysfunction in Patients Without Obstructive Coronary Artery Disease: Why, How, and When. JACC Cardiovasc Interv 2020; 13:1847-1864. [PMID: 32819476 PMCID: PMC7447977 DOI: 10.1016/j.jcin.2020.05.052] [Citation(s) in RCA: 98] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 04/23/2020] [Accepted: 05/05/2020] [Indexed: 02/08/2023]
Abstract
Ischemic heart disease secondary to coronary vascular dysfunction causes angina and impairs quality of life and prognosis. About one-half of patients with symptoms and signs of ischemia turn out not to have obstructive coronary artery disease, and coronary vascular dysfunction may be relevant. Adjunctive tests of coronary vasomotion include guidewire-based techniques with adenosine and reactivity testing, typically by intracoronary infusion of acetylcholine. The CorMicA (Coronary Microvascular Angina) trial provided evidence that routine management guided by an interventional diagnostic procedure and stratified therapy improves angina and quality of life in patients with angina but no obstructive coronary artery disease. In this paper, the COVADIS study group provide a comprehensive review of why, how, and when coronary vascular dysfunction should be assessed invasively. They discuss the rationale through a shared understanding of vascular pathophysiology and clinical evidence. They propose a consensus approach to how an interventional diagnostic procedure is performed with focus on practical aspects. Finally, the authors discuss the clinical scenarios in patients with stable and acute coronary syndromes in which measurement of coronary vascular function may be helpful for patient care.
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Affiliation(s)
- Thomas J Ford
- British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, United Kingdom; Faculty of Medicine, University of Newcastle, Callaghan, Australia; Department of Cardiology, Gosford Hospital, Central Coast Local Health District, Gosford, Australia
| | - Peter Ong
- Department of Cardiology, Robert-Bosch-Krankenhaus, Stuttgart, Germany
| | - Udo Sechtem
- Department of Cardiology, Robert-Bosch-Krankenhaus, Stuttgart, Germany
| | - John Beltrame
- Basil Hetzel Institute, Central Adelaide Local Health Network, University of Adelaide, Adelaide, Australia
| | - Paolo G Camici
- Vita Salute University and San Raffaele Hospital, Milan, Italy
| | - Filippo Crea
- Department of Cardiovascular and Thoracic Sciences, Fondazione Policlinico A. Gemelli, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Juan-Carlos Kaski
- Molecular and Clinical Sciences Research Institute, St. George's University of London, London, United Kingdom
| | - C Noel Bairey Merz
- Barbra Streisand Women's Heart Center, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Carl J Pepine
- Division of Cardiovascular Medicine, University of Florida, Gainesville, Florida
| | - Hiroaki Shimokawa
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Colin Berry
- British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, United Kingdom; Department of Cardiology, Golden Jubilee National Hospital, Clydebank, United Kingdom.
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Ramsey BC, Field AE, Thomas DM, Pickett CA, Leon AJ, Rubal BJ. Assessment of Semi-automated Computed Tomographic Measures of Segmental Perfusion Defects in a Swine Model ( Sus scrofa) of Intermediate Coronary Lesions. Comp Med 2020; 70:258-265. [PMID: 32354378 DOI: 10.30802/aalas-cm-19-000104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Computed tomographic myocardial perfusion (CTP) imaging is a tool that shows promise in emergent settings for defining the hemodynamic significance of coronary artery disease. In this study, we examined the accuracy with which the transmural perfusion ratio (TPR) derived through semiautomated CTP analysis reflected segmental perfusion defects associated with intermediate coronary artery lesions in swine. Lesions (diameter stenosis, 65% ± 11%) of the left anterior descending coronary artery (LAD) were created in 10 anesthetized female swine (weight, 47.5 ± 1.9 kg) by using a pneumatic occlusion device implanted on the LAD. Occluder inflation pressures were adjusted to maintain fractional flow reserve (FFR, 74.3 ± 1.7) during adenosine infusion (140ug/kg/min). Static CTP imaging using a stress-rest protocol and segmental TPR derived from semiautomated CT perfusion software was compared with microsphere-derived TPR (mTPR) by using a 16-segment model and polar mapping. Intermediate LAD stenosis was verified through multiplanar coronary CT angiography. Receiver operating characteristic analysis identified an optimal threshold for segmental perfusion defects for intermediate lesions (TPR threshold, ≤0.80); however, the area under the receiver operating characteristic curve was 0.58, and the overall accuracy was 63%. At this threshold, the sensitivity and specificity were 65% and 61%, and the positive and negative predictive values were 61% and 65%, respectively. Although CTP-TPR illustrated segmental perfusion defects with intermediate lesions, the disparity between CTP-TPR and mTPR measures of segmental perfusion suggests that further advances in analysis software may be necessary to improve the localization of segmental defects for intermediated lesions.
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Affiliation(s)
- Bryan C Ramsey
- Cardiology Service, Brooke Army Medical Center, Fort Sam Houston, Texas
| | - Amy E Field
- US Army Institute of Surgical Research, Fort Sam Houston, Texas
| | - Dustin M Thomas
- Cardiology Service, Brooke Army Medical Center, Fort Sam Houston, Texas
| | | | - Alisa J Leon
- US Army Institute of Surgical Research, Fort Sam Houston, Texas
| | - Bernard J Rubal
- Cardiology Service, Brooke Army Medical Center, Fort Sam Houston, Texas;,
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Morphometric, Hemodynamic, and Multi-Omics Analyses in Heart Failure Rats with Preserved Ejection Fraction. Int J Mol Sci 2020; 21:ijms21093362. [PMID: 32397533 PMCID: PMC7247709 DOI: 10.3390/ijms21093362] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 04/29/2020] [Accepted: 05/07/2020] [Indexed: 12/30/2022] Open
Abstract
(1) Background: There are no successive treatments for heart failure with preserved ejection fraction (HFpEF) because of complex interactions between environmental, histological, and genetic risk factors. The objective of the study is to investigate changes in cardiomyocytes and molecular networks associated with HFpEF. (2) Methods: Dahl salt-sensitive (DSS) rats developed HFpEF when fed with a high-salt (HS) diet for 7 weeks, which was confirmed by in vivo and ex vivo measurements. Shotgun proteomics, microarray, Western blot, and quantitative RT-PCR analyses were further carried out to investigate cellular and molecular mechanisms. (3) Results: Rats with HFpEF showed diastolic dysfunction, impaired systolic function, and prolonged repolarization of myocytes, owing to an increase in cell size and apoptosis of myocytes. Heatmap of multi-omics further showed significant differences between rats with HFpEF and controls. Gene Set Enrichment Analysis (GSEA) of multi-omics revealed genetic risk factors involved in cardiac muscle contraction, proteasome, B cell receptor signaling, and p53 signaling pathway. Gene Ontology (GO) analysis of multi-omics showed the inflammatory response and mitochondrial fission as top biological processes that may deteriorate myocyte stiffening. GO analysis of protein-to-protein network indicated cytoskeleton protein, cell fraction, enzyme binding, and ATP binding as the top enriched molecular functions. Western blot validated upregulated Mff and Itga9 and downregulated Map1lc3a in the HS group, which likely contributed to accumulation of aberrant mitochondria to increase ROS and elevation of myocyte stiffness, and subsequent contractile dysfunction and myocardial apoptosis. (4) Conclusions: Multi-omics analysis revealed multiple pathways associated with HFpEF. This study shows insight into molecular mechanisms for the development of HFpEF and may provide potential targets for the treatment of HFpEF.
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Coronary artery disease (CAD) extension-derived risk stratification for asymptomatic diabetic patients: usefulness of low-dose coronary computed tomography angiography (CCTA) in detecting high-risk profile patients. Radiol Med 2020; 125:1249-1259. [PMID: 32367320 DOI: 10.1007/s11547-020-01204-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 04/16/2020] [Indexed: 12/25/2022]
Abstract
BACKGROUND As one of the most frequent risk factors for cardiovascular disease, type 2 diabetes mellitus (T2DM) is one of the largest causes of death. However, an acute cardiac presentation is not uncommon in diabetic patients, and the current investigative approach remains often inadequate. The aim of our study was to retrospectively stratify the risk of asymptomatic T2DM patients using low-dose 640-slice coronary computed tomography angiography (CCTA). MATERIALS AND METHODS CCTA examinations of 62 patients (mean age, 65 years) with previous diagnosis of type 2 diabetes and without cardiac symptoms were analyzed. Image acquisition was performed using a 640-slice CT. Per-patient, per-vessel and per-plaque analyses were performed. Stratification risk was evaluated according to the ESC guidelines. The patients were followed up after 2.21 ± 0.56 years from CCTA examination. RESULTS Coronary artery disease (CAD) was found in 58 patients (93.55%) presenting 290 plaques. Analysis of all samples showed severe-to-occlusive atherosclerosis in 24 patients (38.7% of cases). However, over the degree of stenosis, 23 patients were evaluated at high risk considering the extension of CAD. Good agreement was shown by the correlation of CAD extension/risk estimation and MACE incidence, according to a Kaplan-Meier survival analysis (p value = 0.001), with a 7.25-fold increased risk (HR 7.25 CI 2.13-24.7; p value = 0.002). CONCLUSION Our study confirms the high capability of CCTA to properly stratify the CV risk of asymptomatic T2DM patients. Its use could be recommended if we consider how current investigative strategies to correctly assess these patients often seem inadequate.
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Respuesta a la réplica al caso clínico «Rotura cardíaca tras falso negativo en coronariografía mediante tomografía computarizada». CIRUGIA CARDIOVASCULAR 2020. [DOI: 10.1016/j.circv.2019.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Cao L, Liu X, Li J, Liang W, Qu T, Li Y, Jia X, Guo J. Improving the Degree and Uniformity of Enhancement in Coronary CT Angiography with a New Bolus Tracking Method Enabled By Free Breathing. Acad Radiol 2019; 26:1591-1596. [PMID: 30846313 DOI: 10.1016/j.acra.2019.01.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 01/24/2019] [Accepted: 01/25/2019] [Indexed: 01/19/2023]
Abstract
RATIONALE AND OBJECTIVES To demonstrate the improved enhancement degree and uniformity in coronary CT angiography (CCTA) on a 16 cm wide-coverage CT with a new bolus tracking method enabled by free-breathing, in comparison with the conventional breath-holding method. MATERIALS AND METHODS A total of 200 patients with suspected coronary heart disease were randomly divided into two groups for CCTA: Group A (n = 100, free-breathing) started CCTA with 2.2 seconds delay after the attenuation in aorta reached 250 HU; Group B (n = 100, breath-holding), used the standard protocol of 80 HU threshold and 8.4 seconds delay. Both groups used the contrast dose rate of 25 mgI/kg/s. CT value and standard deviation in aortic sinus (AS), right coronary artery, left anterior descending, left circumflex, and pericardial fat were measured. Contrast-to-noise ratio for vessels was calculated. Two experienced Radiologists independently reviewed image quality using a 5-point scale (1: nondiagnostic-5: excellent). RESULTS There was no difference in contrast dose, radiation dose, heart rate, and qualitative image quality between the two groups (all p > 0.05). However, Group A had higher mean enhancement in vessels (404 ± 66 HU) than Group B (321 ± 69 HU), and lower coefficients of variation of CT value in aortic sinus, right coronary artery, left anterior descending, and left circumflex (16.3%, 17.7%, 19.2%, and 20.5% vs 21.5%, 22.3%, 23.6%, and 22.9%, respectively), (all p < 0.05). CONCLUSION A new bolus tracking method enabled by free-breathing in CCTA on a 16 cm wide-coverage CT system increases the enhancement degree and uniformity in coronary arteries, compared with the conventional breath-holding method.
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Sharzehee M, Chang Y, Song JP, Han HC. Hemodynamic effects of myocardial bridging in patients with hypertrophic cardiomyopathy. Am J Physiol Heart Circ Physiol 2019; 317:H1282-H1291. [PMID: 31674812 DOI: 10.1152/ajpheart.00466.2019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Myocardial bridging (MB) is linked to angina and myocardial ischemia and may lead to sudden cardiac death in patients with hypertrophic cardiomyopathy (HCM). However, it remains unclear how MB affect the coronary blood flow in HCM patients. The aim of this study was to assess the effects of MB on coronary hemodynamics in HCM patients. Fifteen patients with MB (7 HCM and 8 non-HCM controls) in their left anterior descending (LAD) coronary artery were chosen. Transient computational fluid dynamics (CFD) simulations were conducted in anatomically realistic models of diseased (with MB) and virtually healthy (without MB) LAD from these patients, reconstructed from biplane angiograms. Our CFD simulation results demonstrated that dynamic compression of MB led to diastolic flow disturbances and could significantly reduce the coronary flow in HCM patients as compared with non-HCM group (P < 0.01). The pressure drop coefficient was remarkably higher (P < 0.05) in HCM patients. The flow rate change is strongly correlated with both upstream Reynolds number and MB compression ratio, while the MB length has less impact on coronary flow. The hemodynamic results and clinical outcomes revealed that HCM patients with an MB compression ratio higher than 65% required a surgical intervention. In conclusion, the transient MB compression can significantly alter the diastolic flow pattern and wall shear stress distribution in HCM patients. HCM patients with severe MB may need a surgical intervention.NEW & NOTEWORTHY In this study, the hemodynamic significance of myocardial bridging (MB) in patients with hypertrophic cardiomyopathy (HCM) was investigated to provide valuable information for surgical decision-making. Our results illustrated that the transient MB compression led to complex flow patterns, which can significantly alter the diastolic flow and wall shear stress distribution. The hemodynamic results and clinical outcomes demonstrated that patients with HCM and an MB compression ratio higher than 65% required a surgical intervention.
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Affiliation(s)
- Mohammadali Sharzehee
- Department of Mechanical Engineering, The University of Texas at San Antonio, San Antonio, Texas
| | - Yuan Chang
- Department of Cardiac Surgery, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Beijing, China
| | - Jiang-Ping Song
- Department of Cardiac Surgery, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Beijing, China
| | - Hai-Chao Han
- Department of Mechanical Engineering, The University of Texas at San Antonio, San Antonio, Texas
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Automated 4-dimensional regional myocardial strain evaluation using cardiac computed tomography. Int J Cardiovasc Imaging 2019; 36:149-159. [PMID: 31538258 DOI: 10.1007/s10554-019-01696-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 09/08/2019] [Indexed: 01/12/2023]
Abstract
Evaluation of myocardial regional function is generally performed by visual "eyeballing" which is highly subjective. A robust quantifiable parameter of regional function is required to provide an objective, repeatable and comparable measure of myocardial performance. We aimed to evaluate the clinical utility of novel regional myocardial strain software from cardiac computed tomography (CT) datasets. 93 consecutive patients who had undergone retrospectively gated cardiac CT were evaluated by the software, which utilizes a finite element based tracking algorithm through the cardiac cycle. Circumferential (CS), longitudinal (LS) and radial (RS) strains were calculated for each of 16 myocardial segments and compared to a visual assessment, carried out by an experienced cardiologist on cine movies of standard "echo" views derived from the CT data. A subset of 37 cases was compared to speckle strain by echocardiography. The automated software performed successfully in 93/106 cases, with minimal human interaction. Peak CS, LS and RS all differentiated well between normal, hypokinetic and akinetic segments. Peak strains for akinetic segments were generally post-systolic, peaking at 50 ± 17% of the RR interval compared to 43 ± 9% for normokinetic segments. Using ROC analysis to test the ability to differentiate between normal and abnormal segments, the area under the curve was 0.84 ± 0.01 for CS, 0.80 ± 0.02 for RS and 0.68 ± 0.02 for LS. There was a moderate agreement with speckle strain. Automated 4D regional strain analysis of CT datasets shows a good correspondence to visual analysis and successfully differentiates between normal and abnormal segments, thus providing an objective quantifiable map of myocardial regional function.
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Takaoka H, Kitahara H, Ota J, Suzuki-Eguchi N, Sasaki H, Mori N, Takahashi M, Iida Y, Matsuura K, Nakayama T, Matsumiya G, Kobayashi Y. Utility of computed tomography in cases of aortic valve stenosis before and after transcatheter aortic valve implantation. Cardiovasc Interv Ther 2019; 35:72-84. [PMID: 31512054 DOI: 10.1007/s12928-019-00618-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 08/29/2019] [Indexed: 01/04/2023]
Abstract
Trans-catheter aortic valve implantation (TAVI) has been recognized as a useful treatment for patients with severe aortic valve stenosis, particularly those with moderate to high risks of open heart surgery. A thorough evaluation of the aortic valve complex, including the size or presence of calcifications of the leaflets and annulus, is important for the selection of appropriate candidates, artificial valve types and approach. Echocardiography is useful for the precise evaluation of aortic valve stenosis severity and aortic valve complex morphology, but it is not useful to evaluate three-dimensional aortic valve anatomy and pathway for the catheter of aortic valve implantation. Electrocardiography (ECG)-gating computed tomography (CT) has recently been recognized as a useful modality for evaluating significant coronary artery stenosis because of its higher spatial and temporal resolution and diagnostic accuracy based on recent studies. ECG-gating CT is also useful for evaluating aortic valve complex morphology, including calcifications and whole aorta and iliac arteries, as the access route of catheter in TAVI. TAVI candidates, who are at high risk of open surgery, tend to be old and require anti-platelet after TAVI; therefore CT, is also useful for screening for non-cardiac diseases including malignant tumors just before TAVI. Therefore, here we introduce the utility of cardiac and whole body CT in cases of severe aortic valve stenosis before and after TAVI.
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Affiliation(s)
- Hiroyuki Takaoka
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Inohana 1-8-1, Cuo-ku, Chiba, Japan.
| | - Hideki Kitahara
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Inohana 1-8-1, Cuo-ku, Chiba, Japan
| | - Joji Ota
- Department of Radiology, Chiba University Hospital, Chiba, Japan
| | - Noriko Suzuki-Eguchi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Inohana 1-8-1, Cuo-ku, Chiba, Japan
| | - Haruka Sasaki
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Inohana 1-8-1, Cuo-ku, Chiba, Japan
| | - Naoto Mori
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Inohana 1-8-1, Cuo-ku, Chiba, Japan
| | - Manami Takahashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Inohana 1-8-1, Cuo-ku, Chiba, Japan
| | - Yasunori Iida
- Department of Cardiovascular Surgery, Saiseikai Yokohamashi Tobu Hospital, Yokohama, Japan
| | - Kaoru Matsuura
- Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Takashi Nakayama
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Inohana 1-8-1, Cuo-ku, Chiba, Japan
| | - Goro Matsumiya
- Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Yoshio Kobayashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Inohana 1-8-1, Cuo-ku, Chiba, Japan
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Coenen A, Kim YH, Kruk M, Tesche C, De Geer J, Kurata A, Lubbers ML, Daemen J, Itu L, Rapaka S, Sharma P, Schwemmer C, Persson A, Schoepf UJ, Kepka C, Hyun Yang D, Nieman K. Diagnostic Accuracy of a Machine-Learning Approach to Coronary Computed Tomographic Angiography-Based Fractional Flow Reserve: Result From the MACHINE Consortium. Circ Cardiovasc Imaging 2019; 11:e007217. [PMID: 29914866 DOI: 10.1161/circimaging.117.007217] [Citation(s) in RCA: 243] [Impact Index Per Article: 48.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 04/25/2018] [Indexed: 12/31/2022]
Abstract
BACKGROUND Coronary computed tomographic angiography (CTA) is a reliable modality to detect coronary artery disease. However, CTA generally overestimates stenosis severity compared with invasive angiography, and angiographic stenosis does not necessarily imply hemodynamic relevance when fractional flow reserve (FFR) is used as reference. CTA-based FFR (CT-FFR), using computational fluid dynamics (CFD), improves the correlation with invasive FFR results but is computationally demanding. More recently, a new machine-learning (ML) CT-FFR algorithm has been developed based on a deep learning model, which can be performed on a regular workstation. In this large multicenter cohort, the diagnostic performance ML-based CT-FFR was compared with CTA and CFD-based CT-FFR for detection of functionally obstructive coronary artery disease. METHODS AND RESULTS At 5 centers in Europe, Asia, and the United States, 351 patients, including 525 vessels with invasive FFR comparison, were included. ML-based and CFD-based CT-FFR were performed on the CTA data, and diagnostic performance was evaluated using invasive FFR as reference. Correlation between ML-based and CFD-based CT-FFR was excellent (R=0.997). ML-based (area under curve, 0.84) and CFD-based CT-FFR (0.84) outperformed visual CTA (0.69; P<0.0001). On a per-vessel basis, diagnostic accuracy improved from 58% (95% confidence interval, 54%-63%) by CTA to 78% (75%-82%) by ML-based CT-FFR. The per-patient accuracy improved from 71% (66%-76%) by CTA to 85% (81%-89%) by adding ML-based CT-FFR as 62 of 85 (73%) false-positive CTA results could be correctly reclassified by adding ML-based CT-FFR. CONCLUSIONS On-site CT-FFR based on ML improves the performance of CTA by correctly reclassifying hemodynamically nonsignificant stenosis and performs equally well as CFD-based CT-FFR.
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Affiliation(s)
- Adriaan Coenen
- Department of Cardiology (A.C., M.L.L., J.D., K.N.) .,Department of Radiology (A.C., A.K., M.L.L., K.N.)
| | - Young-Hak Kim
- Erasmus University Medical Center, Rotterdam, the Netherlands. Department of Cardiology, Heart Institute (Y.-H.K.)
| | - Mariusz Kruk
- Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. Coronary Disease and Structural Heart Diseases Department, Institute of Cardiology, Warsaw, Poland (M.K., C.K.)
| | - Christian Tesche
- Division of Cardiovascular Imaging, Medical University of South Carolina, Charleston (C.T., U.J.S.)
| | - Jakob De Geer
- Department of Radiology and Department of Medical and Health Sciences, Center for Medical Image Science and Visualization, Linköping University, Sweden (J.D.G., A.P.)
| | - Akira Kurata
- Department of Radiology (A.C., A.K., M.L.L., K.N.).,Department of Radiology, Ehime University Graduate School of Medicine, Japan (A.K.)
| | - Marisa L Lubbers
- Department of Cardiology (A.C., M.L.L., J.D., K.N.).,Department of Radiology (A.C., A.K., M.L.L., K.N.)
| | - Joost Daemen
- Department of Cardiology (A.C., M.L.L., J.D., K.N.)
| | - Lucian Itu
- Corporate Technology, Siemens SRL, Brasov, Romania (L.I.)
| | - Saikiran Rapaka
- Medical Imaging Technologies, Siemens Healthcare, Princeton, NJ (S.R., P.S.)
| | - Puneet Sharma
- Medical Imaging Technologies, Siemens Healthcare, Princeton, NJ (S.R., P.S.)
| | - Chris Schwemmer
- Computed Tomography-Research & Development, Siemens Healthcare GmbH, Forchheim, Germany (C.S.)
| | - Anders Persson
- Department of Radiology and Department of Medical and Health Sciences, Center for Medical Image Science and Visualization, Linköping University, Sweden (J.D.G., A.P.)
| | - U Joseph Schoepf
- Division of Cardiovascular Imaging, Medical University of South Carolina, Charleston (C.T., U.J.S.)
| | - Cezary Kepka
- Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. Coronary Disease and Structural Heart Diseases Department, Institute of Cardiology, Warsaw, Poland (M.K., C.K.)
| | | | - Koen Nieman
- Department of Cardiology (A.C., M.L.L., J.D., K.N.).,Department of Radiology (A.C., A.K., M.L.L., K.N.).,Stanford University School of Medicine, Cardiovascular Institute, Stanford, CA, USA (K.N.)
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Alvarez Asiain V. Réplica al caso clínico «Rotura cardíaca tras falso negativo en coronariografía mediante tomografía computarizada». CIRUGIA CARDIOVASCULAR 2019. [DOI: 10.1016/j.circv.2019.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Jubran A, Willemink MJ, Nieman K. Coronary CT in Patients with a History of PCI or CABG: Helpful or Harmful? CURRENT CARDIOVASCULAR IMAGING REPORTS 2019. [DOI: 10.1007/s12410-019-9496-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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38
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Al'Aref SJ, Peña JM, Min JK. High-risk atherosclerotic plaque features for cardiovascular risk assessment in the Prospective Multicenter Imaging Study for Evaluation of Chest Pain trial. Cardiovasc Diagn Ther 2019; 9:89-93. [PMID: 30881885 DOI: 10.21037/cdt.2018.08.09] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Subhi J Al'Aref
- Departments of Radiology and Medicine, Weill Cornell Medicine, New York, NY, USA.,Dalio Institute of Cardiovascular Imaging at the NewYork-Presbyterian Hospital, New York, NY, USA
| | - Jessica M Peña
- Departments of Radiology and Medicine, Weill Cornell Medicine, New York, NY, USA.,Dalio Institute of Cardiovascular Imaging at the NewYork-Presbyterian Hospital, New York, NY, USA
| | - James K Min
- Departments of Radiology and Medicine, Weill Cornell Medicine, New York, NY, USA.,Dalio Institute of Cardiovascular Imaging at the NewYork-Presbyterian Hospital, New York, NY, USA
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Alhailiy AB, Ekpo EU, Kench PL, Ryan EA, Brennan PC, McEntee M. The associated factors for radiation dose variation in cardiac CT angiography. Br J Radiol 2019; 92:20180793. [PMID: 30633548 DOI: 10.1259/bjr.20180793] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVE: This study aimed to examine the associated factors for dose variation and influence cardiac CT angiography (CCTA) dose benchmarks in current CT imaging centres. METHODS: A questionnaire was distributed to CT centres across Australia and Saudi Arabia. All participating centres collected data for adults who underwent a CCTA procedure. The questionnaire gathered information about the examination protocol, scanning parameters, patient parameters, and volume CT dose index (CTDI vol) and dose-length product (DLP). A stepwise regression analysis was performed to assess the contribution of tube voltage (kV), padding time technique, cross-sectional area (CSA) of chest and weight to DLP. RESULTS: A total of 17 CT centres provided data for 423 CCTA examinations. The median CTDIvol, DLP and effective dose were 18 mGy, 256 mGy.cm and 5.2 mSv respectively. There was a statistically significant difference in DLP between retrospective and prospective ECG-gating modes (p = 0.001). Median DLP from CCTA using padding technique was 61% higher than CCTA without padding (p = 0.001). The stepwise regression showed that kV was the most significant predictor of DLP followed by padding technique then CSA while patient weight did not statistically significantly predict DLP. Correlation analysis showed a strong positive correlation between weight and CSA (r = 0.78), and there was a moderate positive correlation between weight and DLP (r = 0.42), as well as CSA and DLP (r = 0.48). CONCLUSION: Findings show radiation dose variations for CCTA. The associated factors for dose variation found in this study are scanning mode, kV, padding time technique and CSA of the chest. This results support the need to include CSA measurements in future dose survey and for setting DRLs. ADVANCES IN KNOWLEDGE: The study provides baseline information that helps to understand the associated factors for dose variations and high doses within and between centres performing CCTA.
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Affiliation(s)
- Ali B Alhailiy
- 1 The University of Sydney, Faculty of Health Sciences, Discipline of Medical Radiation Science , Sydney, NSW , Australia.,2 Prince Sattam Bin Abdulaziz University , Al-Kharj , Kingdom of Saudi Arabia
| | - Ernest U Ekpo
- 1 The University of Sydney, Faculty of Health Sciences, Discipline of Medical Radiation Science , Sydney, NSW , Australia
| | - Peter L Kench
- 1 The University of Sydney, Faculty of Health Sciences, Discipline of Medical Radiation Science , Sydney, NSW , Australia
| | - Elaine A Ryan
- 1 The University of Sydney, Faculty of Health Sciences, Discipline of Medical Radiation Science , Sydney, NSW , Australia
| | - Patrick C Brennan
- 1 The University of Sydney, Faculty of Health Sciences, Discipline of Medical Radiation Science , Sydney, NSW , Australia
| | - Mark McEntee
- 1 The University of Sydney, Faculty of Health Sciences, Discipline of Medical Radiation Science , Sydney, NSW , Australia
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Messerli M, Maredziak M, Bengs S, Haider A, Giannopoulos AA, Schwyzer M, Benz DC, von Felten E, Kudura K, Treyer V, Fiechter M, Gräni C, Fuchs TA, Pazhenkottil AP, Buechel RR, Kaufmann PA, Gebhard C. Association between beta-adrenoceptor antagonist-induced sympathicolysis and severity of coronary artery disease as assessed by coronary computed tomography angiography (CCTA). Int J Cardiovasc Imaging 2019; 35:927-936. [PMID: 30623350 DOI: 10.1007/s10554-018-01523-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 12/24/2018] [Indexed: 12/13/2022]
Abstract
Enhanced sympathetic nervous system activity is associated with increased mortality in many cardiac conditions including heart failure and coronary artery disease (CAD). To ensure adequate image quality of coronary CT angiography (CCTA), pre-scan β-adrenergic blockers (BB) are routinely administered. It is currently unknown whether sensitivity to sympathicolytic compounds is associated with severity of CAD. A total of 2633 consecutive patients (1733 [65.8%] men and 900 [34.2%] women, mean age 56.7 ± 11.5 years) undergoing CCTA for exclusion of significant CAD at our department between 06/2013 and 12/2016 were evaluated. Acute heart rate (HR) responses to BB administration were recorded in all patients. Coronary plaque burden as indicated by segment severity score (SSS), segment involvement score (SIS), and significant CAD (i.e. > 50% luminal narrowing) was higher in weak responders to BB as compared to strong responders to BB (p = 0.001 for SSS and SIS, and p = 0.021 for significant CAD). Accordingly, in a multiple linear regression model adjusted for known risk factors of CAD such as smoking, hypertension, diabetes and dyslipidaemia, as well as age, sex, body mass index (BMI), glomerular filtration rate, and HR during CCTA scan, a strong response to BB was selected as a significant independent negative predictor of coronary plaque burden (beta coefficient - 0.08, p = 0.001). We demonstrate that individuals with a weak acute response to BB administration encounter an increased risk of severe CAD. Taking into account sensitivity to sympatho-inhibition may add complementary information in patients undergoing CCTA for evaluation of CAD.
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Affiliation(s)
- Michael Messerli
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Monika Maredziak
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland
- Center for Molecular Cardiology, University of Zurich, Schlieren, Switzerland
| | - Susan Bengs
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland
- Center for Molecular Cardiology, University of Zurich, Schlieren, Switzerland
| | - Ahmed Haider
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland
- Center for Molecular Cardiology, University of Zurich, Schlieren, Switzerland
| | | | - Moritz Schwyzer
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Dominik C Benz
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Elia von Felten
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Ken Kudura
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Valerie Treyer
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Michael Fiechter
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Christoph Gräni
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Tobias A Fuchs
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Aju P Pazhenkottil
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Ronny R Buechel
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Philipp A Kaufmann
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Catherine Gebhard
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland.
- Center for Molecular Cardiology, University of Zurich, Schlieren, Switzerland.
- Department of Nuclear Medicine, Cardiac Imaging, University Hospital Zurich, Ramistrasse 100, Zurich, Switzerland.
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Simó R, Bañeras J, Hernández C, Rodríguez-Palomares J, Valente F, Gutierrez L, González-Alujas T, Ferreira I, Aguadé-Bruix S, Montaner J, Seron D, Genescà J, Boixadera A, García-Arumí J, Planas A, Simó-Servat O, García-Dorado D. Diabetic retinopathy as an independent predictor of subclinical cardiovascular disease: baseline results of the PRECISED study. BMJ Open Diabetes Res Care 2019; 7:e000845. [PMID: 31908800 PMCID: PMC6936469 DOI: 10.1136/bmjdrc-2019-000845] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 11/01/2019] [Accepted: 11/11/2019] [Indexed: 01/27/2023] Open
Abstract
OBJECTIVE Detection of subclinical cardiovascular disease (CVD) has significant impact on the management of type 2 diabetes. We examined whether the assessment of diabetic retinopathy (DR) is useful for identifying patients at a higher risk of having silent CVD. RESEARCH DESIGN AND METHODS Prospective case-control study comprising 200 type 2 diabetic subjects without history of clinical CVD and 60 age-matched non-diabetic subjects. The presence of subclinical CVD was examined using two parameters: (1) calcium coronary score (CACs); (2) composite of CACs >400 UA, carotid plaque ≥3 mm, carotid intima-media thickness ratio >1, or the presence of ECG changes suggestive of previous asymptomatic myocardial infarction. In addition, coronary angio-CT was performed. DR was assessed by slit-lamp biomicroscopy and retinography. RESULTS Type 2 diabetic subjects presented higher CACs than non-diabetic control subjects (p<0.01). Age, male gender, and the presence of DR were independently related to CACs >400 (area under the receiver operating characteristic curve (AUROC) 0.76). In addition, an inverse relationship was observed between the degree of DR and CACs <10 AU. The variables independently associated with the composite measurement of subclinical CVD were age, diabetes duration, the glomerular filtration rate, microalbuminuria, and the presence of DR (AUROC 0.71). In addition, a relationship (p<0.01) was observed between the presence and degree of DR and coronary stenosis. CONCLUSIONS The presence and degree of DR is independently associated with subclinical CVD in type 2 diabetic patients. Our results lead us to propose a rationalized screening for coronary artery disease in type 2 diabetes based on prioritizing patients with DR, particularly those with moderate-severe degree.
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Affiliation(s)
- Rafael Simó
- Diabetes and Metabolism Research Unit, Endocrinology Department, Vall d'Hebron Research Unit, Vall d'Hebron Hospital, Autonomous University of Barcelona, Barcelona, Spain
- CIBERDEM, ISCIII, Madrid, Spain
| | - Jordi Bañeras
- Cardiology Research Group, Cardiology Department, Vall d'Hebron Research Institute, Vall d'Hebron Hospital, Autonomous University of Barcelona, Barcelona, Spain
- CIBER CV, ISCIII, Madrid, Spain
| | - Cristina Hernández
- Diabetes and Metabolism Research Unit, Endocrinology Department, Vall d'Hebron Research Unit, Vall d'Hebron Hospital, Autonomous University of Barcelona, Barcelona, Spain
- CIBERDEM, ISCIII, Madrid, Spain
| | - José Rodríguez-Palomares
- Cardiology Research Group, Cardiology Department, Vall d'Hebron Research Institute, Vall d'Hebron Hospital, Autonomous University of Barcelona, Barcelona, Spain
- CIBER CV, ISCIII, Madrid, Spain
| | - Filipa Valente
- Cardiology Research Group, Cardiology Department, Vall d'Hebron Research Institute, Vall d'Hebron Hospital, Autonomous University of Barcelona, Barcelona, Spain
- CIBER CV, ISCIII, Madrid, Spain
| | - Laura Gutierrez
- Cardiology Research Group, Cardiology Department, Vall d'Hebron Research Institute, Vall d'Hebron Hospital, Autonomous University of Barcelona, Barcelona, Spain
- CIBER CV, ISCIII, Madrid, Spain
| | - Teresa González-Alujas
- Cardiology Research Group, Cardiology Department, Vall d'Hebron Research Institute, Vall d'Hebron Hospital, Autonomous University of Barcelona, Barcelona, Spain
- CIBER CV, ISCIII, Madrid, Spain
| | - Ignacio Ferreira
- Cardiology Research Group, Cardiology Department, Vall d'Hebron Research Institute, Vall d'Hebron Hospital, Autonomous University of Barcelona, Barcelona, Spain
- CIBER CV, ISCIII, Madrid, Spain
| | - Santiago Aguadé-Bruix
- Medical and Metabolic Research Area, Nuclear Medicine, Vall d'Hebron Research Institute, Vall d'Hebron Hospital, Autonomous University of Barcelona, Barcelona, Spain
| | - Joan Montaner
- Neurovascular Research Laboratory, Vall d'Hebron Research Institute, Vall d'Hebron Hospital, Autonomous University of Barcelona, Barcelona, Spain
| | - Daniel Seron
- Nephrology Department, Vall d'Hebron Research Institute, Vall d'Hebron Hospital, Autonomous University of Barcelona, Barcelona, Spain
- REDinREN, ISCIII, Madrid, Spain
| | - Joan Genescà
- Liver Unit, Department of Medicine, Vall d'Hebron Research Institute, Vall d'Hebron Hospital, Autonomous University of Barcelona, Barcelona, Spain
- CIBEREHD, ISCIII, Madrid, Spain
| | - Anna Boixadera
- Ophthalmology Department, Vall d'Hebron Research Institute, Vall d'Hebron Hospital, Autonomous University of Barcelona, Barcelona, Spain
| | - José García-Arumí
- Ophthalmology Department, Vall d'Hebron Research Institute, Vall d'Hebron Hospital, Autonomous University of Barcelona, Barcelona, Spain
| | - Alejandra Planas
- Diabetes and Metabolism Research Unit, Endocrinology Department, Vall d'Hebron Research Unit, Vall d'Hebron Hospital, Autonomous University of Barcelona, Barcelona, Spain
| | - Olga Simó-Servat
- Diabetes and Metabolism Research Unit, Endocrinology Department, Vall d'Hebron Research Unit, Vall d'Hebron Hospital, Autonomous University of Barcelona, Barcelona, Spain
- CIBERDEM, ISCIII, Madrid, Spain
| | - David García-Dorado
- Cardiology Research Group, Cardiology Department, Vall d'Hebron Research Institute, Vall d'Hebron Hospital, Autonomous University of Barcelona, Barcelona, Spain
- CIBER CV, ISCIII, Madrid, Spain
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Ventosa-Fernandez G, Padrol D, Vidal L, Fletcher D, Enríquez F, F. Tarrio R, Barril R, Saez de Ibarra JI. Rotura cardíaca tras falso negativo en coronariografía mediante tomografía computarizada. CIRUGIA CARDIOVASCULAR 2019. [DOI: 10.1016/j.circv.2018.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Abstract
BACKGROUND There is no standard dose or protocol for beta-blocker administration as preconditioning in children undergoing coronary CT angiography. METHODS A total of 63 consecutive patients, with a mean age of 10.0±3.1 years, who underwent coronary CT angiography to assess possible coronary complications were enrolled in a single-centre, retrospective study. All patients were given an oral beta-blocker 1 hour before coronary CT angiography. Additional oral beta-blocker or intravenous beta-blocker was given to those with a high heart rate. We compared image quality, radiation exposure, and adverse events among the patients without additional beta-blocker, with additional oral beta-blocker, and with additional intravenous beta-blocker. RESULTS There were no significant differences in image quality or radiation exposure among the groups. The heart rate just before scanning was significantly correlated with image quality (p<0.001, r=-0.533) but was not correlated with radiation exposure (p=0.45, r=0.096). There were no adverse events related to any allergic reaction, thereby showing the effectiveness of the beta-blocker. CONCLUSION Initial oral beta-blocker administration (0.8 mg/kg/dose) should be administered to all children undergoing coronary CT angiography. Additional intravenous beta-blocker should be given to those with poor heart rate control to improve image quality without increasing radiation exposure or allowing adverse events.
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Lee CH, Lee SW, Park SW. Diabetes and Subclinical Coronary Atherosclerosis. Diabetes Metab J 2018; 42:355-363. [PMID: 30362301 PMCID: PMC6202561 DOI: 10.4093/dmj.2018.0041] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 08/20/2018] [Indexed: 12/19/2022] Open
Abstract
It is well known that diabetic patients have a high risk of cardiovascular events, and although there has been a tremendous effort to reduce these cardiovascular risks, the incidence of cardiovascular morbidity and mortality in diabetic patients remains high. Therefore, the early detection of coronary artery disease (CAD) is necessary in those diabetic patients who are at risk of cardiovascular events. Significant medical and radiological advancements, including coronary computed tomography angiography (CCTA), mean that it is now possible to investigate the characteristics of plaques, instead of solely evaluating the calcium level of the coronary artery. Recently, several studies reported that the prevalence of subclinical coronary atherosclerosis (SCA) is higher than expected, and this could impact on CAD progression in asymptomatic diabetic patients. In addition, several reports suggest the potential benefit of using CCTA for screening for SCA in asymptomatic diabetic patients, which might dramatically decrease the incidence of cardiovascular events. For these reasons, the medical interest in SCA in diabetic patients is increasing. In this article, we sought to review the results of studies on CAD in asymptomatic diabetic patients and discuss the clinical significance and possibility of using CCTA to screen for SCA.
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Affiliation(s)
- Chang Hoon Lee
- Department of Cardiology, Veterans Health Service Medical Center, Seoul, Korea
| | - Seung Whan Lee
- Department of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
| | - Seong Wook Park
- Department of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Coronary Calcium Score vs. Computed Tomography Angiography as Tools to Stratify Cardiovascular Risk. CURRENT CARDIOVASCULAR RISK REPORTS 2018. [DOI: 10.1007/s12170-018-0584-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Association between Dietary Intake and Coronary Artery Calcification in Non-Dialysis Chronic Kidney Disease: The PROGREDIR Study. Nutrients 2018; 10:nu10030372. [PMID: 29562658 PMCID: PMC5872790 DOI: 10.3390/nu10030372] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 03/12/2018] [Accepted: 03/12/2018] [Indexed: 12/27/2022] Open
Abstract
Coronary artery calcification (CAC) is a widespread condition in chronic kidney disease (CKD). Diet may play an important role in CAC, but this role is not clear. This study evaluated the association between macro-and micronutrient intakes and CAC in non-dialysis CKD patients. We analyzed the baseline data from 454 participants of the PROGREDIR study. Dietary intake was evaluated by a food frequency questionnaire. CAC was measured by computed tomography. After exclusion of participants with a coronary stent, 373 people remained for the analyses. The highest tertile of CAC was directly associated with the intake of phosphorus, calcium and magnesium. There was a higher intake of pantothenic acid and potassium in the second tertile. After adjustments for confounding variables, the intake of pantothenic acid, phosphorus, calcium and potassium remained associated with CAC in the generalized linear mixed models. In order to handle the collinearity between these nutrients, we used the LASSO (least absolute shrinkage and selection operator) regression to evaluate the nutrients associated with CAC variability. In this approach, the nutrients that most explained the variance of CAC were phosphorus, calcium and potassium. Prospective studies are needed to confirm these findings and assess the role of interventions regarding these micronutrients on CAC prevention and progression.
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Galassi F, Alkhalil M, Lee R, Martindale P, Kharbanda RK, Channon KM, Grau V, Choudhury RP. 3D reconstruction of coronary arteries from 2D angiographic projections using non-uniform rational basis splines (NURBS) for accurate modelling of coronary stenoses. PLoS One 2018; 13:e0190650. [PMID: 29298341 PMCID: PMC5752011 DOI: 10.1371/journal.pone.0190650] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 12/18/2017] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE Assessment of coronary stenosis severity is crucial in clinical practice. This study proposes a novel method to generate 3D models of stenotic coronary arteries, directly from 2D coronary images, and suitable for immediate assessment of the stenosis severity. METHODS From multiple 2D X-ray coronary arteriogram projections, 2D vessels were extracted. A 3D centreline was reconstructed as intersection of surfaces from corresponding branches. Next, 3D luminal contours were generated in a two-step process: first, a Non-Uniform Rational B-Spline (NURBS) circular contour was designed and, second, its control points were adjusted to interpolate computed 3D boundary points. Finally, a 3D surface was generated as an interpolation across the control points of the contours and used in the analysis of the severity of a lesion. To evaluate the method, we compared 3D reconstructed lesions with Optical Coherence Tomography (OCT), an invasive imaging modality that enables high-resolution endoluminal visualization of lesion anatomy. RESULTS Validation was performed on routine clinical data. Analysis of paired cross-sectional area discrepancies indicated that the proposed method more closely represented OCT contours than conventional approaches in luminal surface reconstruction, with overall root-mean-square errors ranging from 0.213mm2 to 1.013mm2, and maximum error of 1.837mm2. Comparison of volume reduction due to a lesion with corresponding FFR measurement suggests that the method may help in estimating the physiological significance of a lesion. CONCLUSION The algorithm accurately reconstructed 3D models of lesioned arteries and enabled quantitative assessment of stenoses. The proposed method has the potential to allow immediate analysis of the stenoses in clinical practice, thereby providing incremental diagnostic and prognostic information to guide treatments in real time and without the need for invasive techniques.
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Affiliation(s)
- Francesca Galassi
- Radcliffe Department of Medicine, Oxford Acute Vascular Imaging Centre, University of Oxford, Oxford, United Kingdom
| | - Mohammad Alkhalil
- Radcliffe Department of Medicine, Division of Cardiovascular Medicine, University of Oxford, Oxford, United Kingdom
| | - Regent Lee
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom
| | - Philip Martindale
- Oxford Heart Centre, NIHR Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
| | - Rajesh K. Kharbanda
- Radcliffe Department of Medicine, Division of Cardiovascular Medicine, University of Oxford, Oxford, United Kingdom
| | - Keith M. Channon
- Radcliffe Department of Medicine, Division of Cardiovascular Medicine, University of Oxford, Oxford, United Kingdom
| | - Vicente Grau
- Department of Engineering Science, Institute of Biomedical Engineering, University of Oxford, Oxford, United Kingdom
| | - Robin P. Choudhury
- Radcliffe Department of Medicine, Oxford Acute Vascular Imaging Centre, University of Oxford, Oxford, United Kingdom
- Radcliffe Department of Medicine, Division of Cardiovascular Medicine, University of Oxford, Oxford, United Kingdom
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Czaja M, Wygoda Z, Duszańska A, Szczerba D, Głowacki J, Gąsior M, Wasilewski JP. Interpreting myocardial perfusion scintigraphy using single-photon emission computed tomography. Part 1. KARDIOCHIRURGIA I TORAKOCHIRURGIA POLSKA = POLISH JOURNAL OF CARDIO-THORACIC SURGERY 2017; 14:192-199. [PMID: 29181048 PMCID: PMC5701596 DOI: 10.5114/kitp.2017.70534] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 05/16/2017] [Indexed: 11/17/2022]
Abstract
This article discusses the protocol for myocardial perfusion scintigraphy performed with single-photon emission computed tomography (SPECT). Indications for SPECT are listed with consideration given to the results of the increasingly more common angio-CT examinations of the coronary arteries (multislice computed tomography). The paper also presents basic information about interpreting the results, including the scores of left ventricle myocardial perfusion using the 17-segment polar map, and explains the concept of total perfusion deficit.
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Affiliation(s)
- Monika Czaja
- School of Medicine with the Division in Zabrze, Medical University of Silesia in Katowice, Poland
| | - Zbigniew Wygoda
- Institute of Nuclear Medicine and Oncological Endocrinology, Center of Oncology, Gliwice, Poland
- Laboratory of Nuclear Medicine, Silesian Center for Heart Diseases, Zabrze, Poland
| | - Agata Duszańska
- Department of Cardiac Surgery, Transplantology, and Mechanical Circulatory Support, Silesian Center for Heart Diseases, Zabrze, Poland
| | - Dominik Szczerba
- Department of Theoretical Physics, University of Silesia, Katowice, Poland
- Future Processing, Gliwice, Poland
| | - Jan Głowacki
- Laboratory of Imaging Diagnostics, Silesian Center for Heart Diseases in Zabrze, School of Medicine with the Division of Dentistry in Zabrze, Poland
- Chair and Institute of Medical Radiology and Radiodiagnostics in Zabrze, Medical University of Silesia in Katowice, Poland
| | - Mariusz Gąsior
- 3 Chair and Clinical Department of Cardiology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia in Katowice, Silesian Center for Heart Diseases in Zabrze, Poland
| | - Jarosław P. Wasilewski
- 3 Chair and Clinical Department of Cardiology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia in Katowice, Silesian Center for Heart Diseases in Zabrze, Poland
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Iterative reconstruction improves detection of in-stent restenosis by high-pitch dual-source coronary CT angiography. Sci Rep 2017; 7:6956. [PMID: 28761180 PMCID: PMC5537291 DOI: 10.1038/s41598-017-07499-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 06/27/2017] [Indexed: 01/13/2023] Open
Abstract
Recent studies demonstrated that sinogram affirmed iterative reconstructions (SAFIRE) can produce higher-resolution images with greater robustness for the reduction of various imaging artefacts. Eighty-five patients were prospectively evaluated and underwent a high-pitch spiral acquisition CT scan. In-stent noise, signal-to-noise ratio(SNR), stent-lumen attenuation increase ratio (SAIR), and subjective image quality score were measured and compared between the SAFIRE and Filter back projection (FBP) reconstructions. Conventional coronary angiography served as the standard of reference. In 159 evaluated stents, SAFIRE was superior to FBP with regards to in-stent noise, SNR, SAIR, and image quality score. On per-stent analysis, SAFIRE vs. FBP reconstruction yielded 85% vs. 85%sensitivity, 89% vs. 78%specificity, 73% vs. 57%positive predictive value, 95% vs. 94%negative predictive value, and 0.87 vs. 0.82 area under curve, although these improvements did not reach statistical significance (P > 0.05). However, in the subgroup of small diameter stents (≤3 mm; n = 95), specificity(82% vs. 62%), positive predictive value(66% vs. 50%) and area under curve (0.81 vs. 0.70) improved significantly (P < 0.05) with SAFIRE. SAFIRE image reconstruction can thus improve the evaluation for ISR, especially in smaller stents.
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