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Seitun S, Clemente A, De Lorenzi C, Benenati S, Chiappino D, Mantini C, Sakellarios AI, Cademartiri F, Bezante GP, Porto I. Cardiac CT perfusion and FFR CTA: pathophysiological features in ischemic heart disease. Cardiovasc Diagn Ther 2020; 10:1954-1978. [PMID: 33381437 PMCID: PMC7758766 DOI: 10.21037/cdt-20-414] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 04/22/2020] [Indexed: 01/24/2023]
Abstract
Cardiac computed tomography (CCT) has rapidly evolved, becoming a powerful integrated tool for the evaluation of coronary artery disease (CAD), and being superior to other noninvasive methods due to its high accuracy and ability to simultaneously assess both lumen stenosis and atherosclerotic plaque burden. Furthermore, CCT is regarded as an effective gatekeeper for coronary angiography, and carries independent important prognostic information. In the last decade, the introduction of new functional CCT applications, namely CCT perfusion (CCTP) imaging and CT-derived fractional flow reserve (FFRCTA), has opened the door for accurate assessment of the haemodynamic significance of stenoses. These new CCT technologies, thus, share the unique advantage of assessing both myocardial ischemia and patient-specific coronary artery anatomy, providing an integrated anatomical/functional analysis. In the present review, starting from the pathophysiology of myocardial ischemia, we evaluate the existing evidence for functional CCT imaging and its value in relation to alternative, well-established, non-invasive imaging modalities and invasive indices of ischemia (currently the gold-standard). The knowledge of clinical applications, benefits, and limitations of these new CCT technologies will allow efficient and optimal use in clinical practice in the near future.
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Affiliation(s)
- Sara Seitun
- Department of Radiology, IRCCS Policlinico San Martino Hospital, Genoa, Italy
| | - Alberto Clemente
- Department of Radiology, CNR (National Council of Research)/Tuscany Region ‘Gabriele Monasterio’ Foundation (FTGM), Massa, Italy
| | - Cecilia De Lorenzi
- Department of Radiology, IRCCS Policlinico San Martino Hospital, Genoa, Italy
| | - Stefano Benenati
- Clinic of Cardiovascular Diseases, IRCCS Policlinico San Martino Hospital, University of Genoa, Genoa, Italy
| | - Dante Chiappino
- Department of Radiology, CNR (National Council of Research)/Tuscany Region ‘Gabriele Monasterio’ Foundation (FTGM), Massa, Italy
| | - Cesare Mantini
- Department of Neuroscience, Imaging and Clinical Science, Institute of Radiology, “G. d’Annunzio” University, Chieti, Italy
| | - Antonis I. Sakellarios
- Unit of Medical Technology and Intelligent Information Systems, Department of Materials Science and Engineering, University of Ioannina, Ioannina, Greece
| | | | - Gian Paolo Bezante
- Clinic of Cardiovascular Diseases, IRCCS Policlinico San Martino Hospital, University of Genoa, Genoa, Italy
| | - Italo Porto
- Clinic of Cardiovascular Diseases, IRCCS Policlinico San Martino Hospital, University of Genoa, Genoa, Italy
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Seitun S, Clemente A, Maffei E, Toia P, La Grutta L, Cademartiri F. Prognostic value of cardiac CT. Radiol Med 2020; 125:1135-1147. [PMID: 33047297 DOI: 10.1007/s11547-020-01285-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/03/2020] [Indexed: 11/28/2022]
Abstract
In the past decades, coronary computed tomography angiography (CCTA) has become a powerful tool in the management of coronary artery disease. The diagnostic and prognostic value of CCTA has been extensively demonstrated in both large observational studies and clinical trials among stable chest pain patients. The quantification of coronary artery calcium score (CACS) is a well-established predictor of cardiovascular morbidity and mortality in asymptomatic subjects. Besides CACS, the main strength of CCTA is the accurate assessment of the individual total atherosclerotic plaque burden, which holds important prognostic information. In addition, CCTA, by providing detailed information on coronary plaque morphology and composition with identification of specific high-risk plaque features, may further improve the risk stratification beyond the assessment of coronary stenosis. The development of new CCTA applications, such as stress myocardial CT perfusion and computational fluids dynamic applied to standard CCTA to derive CT-based fractional flow reserve (FFR) values have shown promising results to guide revascularization, potentially improving clinical outcomes in stable chest pain patients. In this review, starting from the role of CACS and moving beyond coronary stenosis, we evaluate the existing evidence of the prognostic effectiveness of the CCTA strategy in real-world clinical practice.
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Affiliation(s)
- Sara Seitun
- Department of Radiology, IRCCS Policlinico San Martino Hospital, Genoa, Italy
| | - Alberto Clemente
- Department of Radiology, CNR (National Council of Research)/Tuscany Region 'Gabriele Monasterio' Foundation (FTGM), Massa, Italy
| | - Erica Maffei
- Department of Radiology - Area Vasta 1 - ASUR Marche, Ospedale Civile "Santa Maria della Misericordia" di Urbino, Viale Federico Comandino, 70, 61029, Urbino, PU, Italy
| | - Patrizia Toia
- Department of Radiology, DIBIMED, University of Palermo, Palermo, Italy
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Ulimoen GR, Ofstad AP, Endresen K, Gullestad L, Johansen OE, Borthne A. Low-dose CT coronary angiography for assessment of coronary artery disease in patients with type 2 diabetes--a cross-sectional study. BMC Cardiovasc Disord 2015; 15:147. [PMID: 26573616 PMCID: PMC4647633 DOI: 10.1186/s12872-015-0143-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 11/06/2015] [Indexed: 11/22/2022] Open
Abstract
Background Silent coronary artery disease (CAD) is prevalent in type 2 diabetes mellitus (T2DM). Although coronary computed tomography angiography (CCTA) over recent years has emerged a useful tool for assessing and diagnosing CAD it’s role and applicability for patients with T2DM is still unclarified, in particular in asymptomatic patients. We aimed to assess the role of CCTA in detecting and characterizing CAD in patients with T2DM without cardiac symptoms when compared to gold standard invasive coronary angiography (ICA). Methods This was a cross-sectional analysis of patients with T2DM without symptomatic CAD enrolled in the Asker and Baerum Cardiovascular Diabetes Study who, following clinical examination and laboratory assessment, underwent subsequently CCTA and ICA. Results In total 48 Caucasian patients with T2DM (36 men, age 64.0 ± 7.3 years, diabetes duration 14.6 ± 6.4 years, HbA1c 7.4 ± 1.1 %, BMI 29.6 ± 4.3 kg/m2) consented to, and underwent, both procedures (CCTA and ICA). The population was at intermediate cardiovascular risk (mean coronary artery calcium score 269, 75 % treated with antihypertensive therapy). ICA identified a prevalence of silent CAD at 17 % whereas CCTA 35 %. CCTA had a high sensitivity (100 %) and a high negative predictive value (100 %) for detection of patients with CAD when compared to ICA, but the positive predictive value was low (47 %). Conclusions Low-dose CCTA is a reliable method for detection and exclusion of significant CAD in T2DM and thus may be a useful tool for the clinicians. However, a low positive predictive value may limit its usefulness as a screening tool for all CAD asymptomatic patients with T2DM. Further studies should assess the applicability for risk assessment beyond the evaluation of the vascular bed.
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Affiliation(s)
- Geir Reinvik Ulimoen
- Department of Radiology, Akershus University Hospital, PB 1000, 1478, Lorenskog, Norway.
| | - Anne Pernille Ofstad
- Department of Medical Research, Bærum Hospital, Vestre Viken Hospital Trust, 3004, Drammen, Norway.
| | - Knut Endresen
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, 0372, Oslo, Norway.
| | - Lars Gullestad
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, 0372, Oslo, Norway. .,University of Oslo, Oslo, Norway.
| | - Odd Erik Johansen
- Department of Medical Research, Bærum Hospital, Vestre Viken Hospital Trust, 3004, Drammen, Norway.
| | - Arne Borthne
- Department of Radiology, Akershus University Hospital, PB 1000, 1478, Lorenskog, Norway. .,University of Oslo, Oslo, Norway.
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Cademartiri F, Maffei E, Nistri S, Leipsic J. Cardiac CT in asymptomatic diabetes mellitus: role of non-invasive atherosclerosis imaging in high-risk asymptomatic individuals. Eur Heart J Cardiovasc Imaging 2015; 16:1060-1061. [DOI: 10.1093/ehjci/jev134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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Habib PJ, Green J, Butterfield RC, Kuntz GM, Murthy R, Kraemer DF, Percy RF, Miller AB, Strom JA. Association of cardiac events with coronary artery disease detected by 64-slice or greater coronary CT angiography: a systematic review and meta-analysis. Int J Cardiol 2013; 169:112-20. [PMID: 24090745 DOI: 10.1016/j.ijcard.2013.08.096] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 08/22/2013] [Accepted: 08/29/2013] [Indexed: 01/10/2023]
Abstract
BACKGROUND The value of ≥64-slice coronary CT angiography (CCTA) to determine odds of cardiac death or non-fatal myocardial infarction (MI) needs further clarification. METHODS We performed a systematic review and meta-analysis using publications reporting events/severity of coronary artery disease (CAD) in patients with suspected CAD undergoing CCTA. Patients were divided into: no CAD, non-obstructive CAD (maximal stenosis <50%), and obstructive CAD (≥50% stenosis). Odds ratios with 95% confidence intervals were calculated using a fixed or random effects model. Heterogeneity was assessed using the I(2) index. RESULTS We included thirty-two studies comprising 41,960 patients with 363 all-cause deaths (15.0%), 114 cardiac deaths (4.7%), 342 MI (14.2%), 69 unstable angina (2.8%), and 1527 late revascularizations (63.2%) over 1.96 (SD 0.77) years of follow-up. Cardiac death or MI occurred in 0.04% without, 1.29% with non-obstructive, and 6.53% with obstructive CAD. OR for cardiac death or MI was: 14.92 (95% CI, 6.78 to 32.85) for obstructive CAD, 6.41 (95% CI, 2.44 to 16.84) for non-obstructive CAD versus no CAD, and 3.19 (95% CI, 2.29 to 4.45) for non-obstructive versus obstructive CAD and 6.56 (95% CI, 3.07 to 14.02) for no versus any CAD. Similar trends were noted for all-cause mortality and composite major adverse cardiovascular events. CONCLUSIONS Increasing CAD severity detected by CCTA is associated with cardiac death or MI, all-cause mortality, and composite major adverse cardiovascular events. Absence of CAD is associated with very low odds of major adverse events, but non-obstructive disease significantly increases odds of cardiac adverse events in this follow-up period.
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Affiliation(s)
- Phillip J Habib
- Division of Cardiology, Department of Medicine, University of Florida College of Medicine, Jacksonville, Jacksonville, FL, United States
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Rationale, design and methods of CTCA-PRORECAD (Computed Tomography Coronary Angiography Prognostic Registry for Coronary Artery Disease): a multicentre and multivendor registry. Radiol Med 2013; 118:591-607. [PMID: 23358817 DOI: 10.1007/s11547-012-0912-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2011] [Accepted: 11/15/2011] [Indexed: 10/27/2022]
Abstract
PURPOSE This study was done to assess the prognostic value of computed tomography coronary angiography (CTCA) in a large multicentre population of patients with suspected coronary artery disease (CAD) and, in particular, its incremental value compared with traditional methods for risk stratification. MATERIALS AND METHODS This is a retrospective observational study that began in January 2003 conducted on patients with suspected CAD assessed with CTCA on the basis of symptoms (chest pain, dyspnoea) and/or abnormal or equivocal stress test and/or a high cardiovascular risk profile. The participating centres will provide data obtained with CTCA performed with 16-slice or higher equipment. Exclusion criteria are renal insufficiency, allergy to iodinated contrast material, pregnancy and previous myocardial infarction or revascularisation (percutaneous coronary intervention and/or coronary artery bypass graft). All patients are stratified by means of clinical assessment and/or data retrieved from a clinical database. Risk factors considered are hypertension, dyslipidaemia, diabetes mellitus, smoking, family history and obesity. Symptoms are classified as absent, typical chest pain, atypical chest pain and dyspnoea. Primary endpoints are death, major adverse cardiovascular events (cardiac death, unstable angina requiring hospitalisation, acute myocardial infarction) and shifting of cardiovascular risk category on the basis of coronary plaque burden. The secondary endpoint is coronary revascularisation. Telephone interviews and/or clinical databases are used for the follow-up. The study will be conducted on a population >1,000 patients. CONCLUSIONS The information collected from the Prognostic Registry for Coronary Artery Disease (PRORECAD) will provide insight into the prognostic value of CTCA in addition to demographic and clinical features. The results will allow for better use and interpretation of CTCA for prognostic purposes.
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Kamimura M, Moroi M, Isobe M, Hiroe M. Role of coronary CT angiography in asymptomatic patients with type 2 diabetes mellitus. Int Heart J 2012; 53:23-8. [PMID: 22398672 DOI: 10.1536/ihj.53.23] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Diabetic patients with coronary artery disease are often asymptomatic, making appropriate care of such patients difficult. The purpose of this study was to investigate the prevalence of coronary lesions in asymptomatic diabetic patients. Coronary computed tomography (CT) angiography was performed in 120 consecutive diabetic patients (90 of whom were men, mean age 65, mean HbA1c 7.2%). Images from patients whose coronary artery calcium scores (CAC scores) were less than 400 were subjected to stenosis and plaque analysis. Significant stenosis was defined as coronary artery stenosis > 70%. High-risk plaque was defined as plaque having both a CT density < 30 Hounsfield Units (HU) and showing positive remodeling. Significant stenoses were identified in 30.5% of the patients. High-risk plaques were identified in 17.1% of the patients. Less than half of the high-risk plaques were obstructive plaques. There was a statistically significant association between significant stenosis and high-risk plaque by chi-square test (P = 0.022). We found significant stenosis even in patients whose CAC score = 0 at a rate of 5.0%. Using univariate logistic-regression analysis, we found that coronary risk factors associated with significant stenosis and high-risk plaque were dyslipidemia (P = 0.033) and current smoking (P = 0.030), respectively. We report for the first time, the prevalence of high-risk plaques in the arteries of patients with asymptomatic diabetes, as assessed by coronary CT angiography.
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Affiliation(s)
- Munehiro Kamimura
- Department of Cardiology, National Center for Global Health and Medicine, Tokyo Medical and Dental Post-graduate School of Medicine, Tokyo, Japan
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Cheezum MK, Hulten EA, Fischer C, Smith RM, Slim AM, Villines TC. Prognostic Value of Coronary CT Angiography. Cardiol Clin 2012; 30:77-91. [DOI: 10.1016/j.ccl.2011.11.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Gao Y, Lu B, Sun ML, Hou ZH, Yu FF, Cao HL, Chen Y, Yang YJ, Jiang SL, Budoff MJ. Comparison of atherosclerotic plaque by computed tomography angiography in patients with and without diabetes mellitus and with known or suspected coronary artery disease. Am J Cardiol 2011; 108:809-13. [PMID: 21741605 DOI: 10.1016/j.amjcard.2011.04.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Revised: 04/27/2011] [Accepted: 04/27/2011] [Indexed: 11/28/2022]
Abstract
The aim of this study was to compare coronary artery plaque burden, composition, distribution, and the degree of coronary artery stenosis in diabetic and nondiabetic patients with known or suspected coronary artery disease (CAD). The study group consisted of 594 patients with known or suspected CAD, including 122 diabetics, who underwent multidetector computed tomographic coronary angiography and traditional invasive coronary artery angiography. Coronary artery calcium scores were compared in different age subgroups. Noncalcified plaque, calcified plaque, and mixed plaque were analyzed by coronary segment on computed tomographic coronary angiography, as well as the degree of coronary stenosis on coronary artery angiography. Obstructive vessels were compared between the 2 groups. Total coronary artery calcium score was higher in patients with diabetes compared to those without (378.4 ± 613.0 vs 226.0 ± 408.4, p = 0.003). The percentage of patients with coronary artery calcium scores >400 among diabetics (22.1%) was higher than among nondiabetics (14.2%) (p = 0.032). Diabetics had a higher percentage of coronary segments with noncalcified plaque, calcified plaque, and mixed plaque than nondiabetics (35.3% vs 26.2%, p <0.001; 17.5% vs 11.6%, p = 0.017; and 9.8% vs 7.9%, p = 0.008). More diabetics had multivessel obstructive disease compared to nondiabetics (p <0.05). With longer duration of diabetes mellitus, the stenosed segments of coronary arteries increased accordingly. In conclusion, diabetics have more atherosclerotic plaque burden and more severe coronary atherosclerosis than nondiabetics. Most obstructive lesions were caused by mixed plaques in diabetics and nondiabetics.
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Affiliation(s)
- Yang Gao
- Department of Radiology, Cardiovascular Institute and Fu Wai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Malagò R, Pezzato A, Barbiani C, Mantovani W, Caliari G, Alfonsi U, Tavella D, Mucelli RP. Comparison between different kernel reformatting filters in 3D quantitative analysis of MDCT coronary angiography. Radiol Med 2011; 116:1203-16. [PMID: 21892715 DOI: 10.1007/s11547-011-0719-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2010] [Accepted: 01/26/2011] [Indexed: 11/24/2022]
Abstract
PURPOSE Coronary angiography with multidetector-row computed tomography (MDCT-CA) allows quantification of coronary artery stenosis with a high level of accuracy; however, a better estimation of stenosis can be achieved by using appropriate reformatting filters, especially in stents and calcified segments. Quantitative computed tomography angiography (QCTA) is intended to overcome the limitations of the visual score. The aim of this study was to evaluate the accuracy of QCTA with different filters in comparison with quantitative coronary angiography (QCA) and visual score. MATERIALS AND METHODS Two blinded operators visually scored 17 consecutive patients referred for MDCT-CA with a per-segment analysis. The degree of stenosis was classified as 0-20%, 20-50% (wall irregularities), 50-70% (significant disease) and 70-100% (vessel occlusion). Each segment was then analysed using the electronic callipers of the QCTA system with 15 different filters. No contour editing was performed. Data were compared with QCA and conventional coronary angiography (CCA). Comparison between QCTA, visual score and QCA were performed using Spearman's rank correlation. RESULTS Of 25 segments analysed (mean 1.4 diseased segment per patient), 375 measurements were considered. Good correlation was found between the visual score and QCA [Pearson correlation coefficient (rho=0.852; p<0.0001)] and between QCA and CCA (rho=0.804; p<0.0001). Moderate correlation was found between QCA and QCTA only using two filters (rho=0.444; p<0.0001 for YA filter and rho=0.450; p<0.0001 for YB filter). CONCLUSIONS Overall QCTA accuracy is low if contour editing is not applied, especially in calcified vessels. Certain filters can help to better estimate the exact percentage of stenosis.
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Affiliation(s)
- R Malagò
- Department of Radiology, University of Verona, Policlinico GB Rossi, P.le LA Scuro 10, 37134, Verona, Italy.
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Maffei E, Seitun S, Palumbo A, Martini C, Emiliano E, Cuttone A, Aldrovandi A, Malagò R, La Grutta L, Midiri M, Tedeschi C, De Rosa R, Catalano O, Weustink A, Mollet N, Cademartiri F. Prognostic value of Morise clinical score, calcium score and computed tomography coronary angiography in patients with suspected or known coronary artery disease. Radiol Med 2011; 116:1188-202. [DOI: 10.1007/s11547-011-0721-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2009] [Accepted: 09/24/2009] [Indexed: 11/28/2022]
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Maffei E, Martini C, Seitun S, Arcadi T, Tedeschi C, Guaricci A, Malagò R, Tarantini G, Aldrovandi A, Cademartiri F. Computed tomography coronary angiography in the selection of outlier patients: a feasibility report. Radiol Med 2011; 117:214-29. [PMID: 21643634 DOI: 10.1007/s11547-011-0695-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2010] [Accepted: 10/27/2010] [Indexed: 11/26/2022]
Abstract
PURPOSE This study evaluated criteria, presence and distribution of outlier patients by means of computed tomography coronary angiography (CTCA) in a large institutional database. MATERIAL AND METHODS From a population of 2,881 consecutive patients (1,842 men, mean age 62 ± 13 years) in sinus rhythm who underwent CTCA, we extracted data on patients with suspected coronary artery disease (CAD). We selected patient outliers in the fifth and sixth decades of life with the following criteria: ≥ 3 risk factors and absence of CAD, zero to one risk factors and ≥ 5 diseased coronary segments. Diabetes was excluded from risk factors because of the different impact on CAD. RESULTS The patient population consisted of 2,432 individuals with suspected CAD (1,495 men, age 62 ± 13 years). The prevalence of obstructive CAD (≥ 50% lumen reduction at CTCA) was 36% (863/2,432). Patients with normal coronary arteries accounted for 34% of the total (837/2,432; 431 men, age 55 ± 14 years). Of these, 210 were in the fifth and 231 in the 6th decade (men 196, women 245); those with ≥ 3 risk factors accounted for 4.2% of the total (102/2,432; men 42, women 60). Patients with ≥ 5 diseased coronary segments accounted for 28% of the total (686/2,432; 510 men, age 68 ± 10 years). Of these, 115 were in the fifth and 270 in the sixth decade (men 309, women 76); those with zero to one risk factors accounted for 3.0% (73/2,432; men 66, women 7). CONCLUSIONS CTCA is a reliable noninvasive diagnostic modality that can be used to identify outlier patients. This will enable dedicated trials aimed at characterising biomarkers and genomics of protective and nonprotective factors against CAD and its complications.
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Affiliation(s)
- E Maffei
- Dipartimento di Radiologia e del Cuore, c/o Piastra Tecnica - Piano 0, Azienda Ospedaliero-Universitaria di Parma, Via Gramsci 14, 43100, Parma, Italy
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Bamberg F, Sommer WH, Hoffmann V, Achenbach S, Nikolaou K, Conen D, Reiser MF, Hoffmann U, Becker CR. Meta-Analysis and Systematic Review of the Long-Term Predictive Value of Assessment of Coronary Atherosclerosis by Contrast-Enhanced Coronary Computed Tomography Angiography. J Am Coll Cardiol 2011; 57:2426-36. [DOI: 10.1016/j.jacc.2010.12.043] [Citation(s) in RCA: 142] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2010] [Revised: 12/02/2010] [Accepted: 12/04/2010] [Indexed: 01/27/2023]
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Maffei E, Seitun S, Martini C, Aldrovandi A, Cervellin G, Tedeschi C, Guaricci A, Messalli G, Catalano O, Cademartiri F. Prognostic value of computed tomography coronary angiography in patients with chest pain of suspected cardiac origin. Radiol Med 2011; 116:690-705. [DOI: 10.1007/s11547-011-0647-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2010] [Accepted: 08/06/2010] [Indexed: 12/31/2022]
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Hulten EA, Carbonaro S, Petrillo SP, Mitchell JD, Villines TC. Prognostic value of cardiac computed tomography angiography: a systematic review and meta-analysis. J Am Coll Cardiol 2010; 57:1237-47. [PMID: 21145688 DOI: 10.1016/j.jacc.2010.10.011] [Citation(s) in RCA: 304] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2010] [Revised: 09/15/2010] [Accepted: 10/04/2010] [Indexed: 01/23/2023]
Abstract
OBJECTIVES The purpose of this study was to systematically review and perform a meta-analysis of the ability of cardiac computed tomography angiography (CCTA) to predict future cardiovascular events and death. BACKGROUND The diagnostic accuracy of CCTA is well reported. The prognostic value of CCTA has been described in several studies, but many were underpowered. Pooling outcomes increases the power to predict rare events. METHODS We searched multiple databases for longitudinal studies of CCTA with at least 3 months follow-up of symptomatic patients with suspected coronary artery disease (CAD) reporting major adverse cardiovascular events (MACE), consisting of death, myocardial infarction (MI), and revascularization. Annualized event rates were pooled using a bivariate mixed-effects binomial regression model to calculate summary likelihood ratios and receiver-operating characteristic curves. RESULTS Eighteen studies evaluated 9,592 patients with a median follow-up of 20 months. The pooled annualized event rate for obstructive (any vessel with >50% luminal stenosis) versus normal CCTA was 8.8% versus 0.17% per year for MACE (p < 0.05) and 3.2% versus 0.15% for death or MI (p < 0.05). The pooled negative likelihood ratio for MACE after normal CCTA findings was 0.008 (95% confidence interval [CI]: 0.0004 to 0.17, p < 0.001), the positive likelihood ratio was 1.70 (95% CI: 1.42 to 2.02, p < 0.001), sensitivity was 0.99 (95% CI: 0.93 to 1.00, p < 0.001), and specificity was 0.41 (95% CI: 0.31 to 0.52, p < 0.001). Stratifying by no CAD, nonobstructive CAD (worst stenosis <50%), or obstructive CAD, there were incrementally increasing adverse events. CONCLUSIONS Adverse cardiovascular events among patients with normal findings on CCTA are rare. There are incrementally increasing future MACE with increasing CAD by CCTA.
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Affiliation(s)
- Edward A Hulten
- Cadiology Service, Walter Reed Army Medical Center, Washington, DC, USA.
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Andreini D, Pontone G, Bartorelli AL, Agostoni P, Mushtaq S, Antonioli L, Cortinovis S, Canestrari M, Annoni A, Ballerini G, Fiorentini C, Pepi M. Comparison of the diagnostic performance of 64-slice computed tomography coronary angiography in diabetic and non-diabetic patients with suspected coronary artery disease. Cardiovasc Diabetol 2010; 9:80. [PMID: 21114858 PMCID: PMC3006364 DOI: 10.1186/1475-2840-9-80] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2010] [Accepted: 11/29/2010] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Diabetics have high prevalence of subclinical coronary artery disease (CAD) with typical characteristics (diffuse disease, large calcifications). Although 64-slice multidetector computed tomography (MDCT) coronary angiography has high diagnostic accuracy to detect CAD, its diagnostic performance in diabetics with suspected CAD is unknown. To compare the diagnostic performance of 64-slice MDCT between diabetics and non-diabetics with suspected CAD scheduled for invasive coronary angiography (ICA). METHODS We enrolled one hundred and five diabetic patients (92 men, age 65 +/- 9 years, Group 1) and 105 non-diabetic patients (63 men, age 63+/-5 years, Group 2) with indication to ICA for suspected CAD undergoing coronary 64-slice MDCT before ICA. RESULTS In Group 1, the overall feasibility of coronary artery visualization was 93.8%. The most frequent artifact was blooming due to large coronary calcifications (54 artifacts, 67%). In Group 2, the overall feasibility was significantly higher vs. Group 1 (97%, p < 0.0001). In Group 1, the segment-based analysis showed a MDCT sensibility, specificity, positive predictive value, negative predictive value and accuracy for the detection of ≥50% luminal narrowing of 77%, 90%, 70%, 93% and 87%, respectively. In Group 2, all these parameters were significantly higher vs. Group 1. In the patient-based analysis, specificity, negative predictive value and accuracy were significantly lower in Group 1 vs. Group 2. CONCLUSIONS Although MDCT has high sensitivity for early identification of significant CAD in diabetics, its diagnostic performance is significantly reduced in these patients as compared to non-diabetics with similar clinical characteristics.
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Affiliation(s)
- Daniele Andreini
- Centro Cardiologico Monzino, IRCCS, Department of Cardiovascular Sciences, University of Milan, Milan, Italy.
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Noninvasive anatomical coronary artery imaging versus myocardial perfusion imaging: which confers superior diagnostic and prognostic information? J Comput Assist Tomogr 2010; 34:637-44. [PMID: 20861763 DOI: 10.1097/rct.0b013e3181e10525] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Myocardial perfusion imaging (MPI) has been a valuable diagnostic and prognosticating tool for decades, but recently it has been challenged by the growing evidence about either comparable or superior diagnostic and prognostic value of computed tomography (CT)-based anatomical imaging modalities. Although there are some studies suggesting synergy and potential for combined use of these modalities to better diagnose coronary artery disease (CAD), it is important to evaluate these approaches separately, given cost and other restraints. This review compares the noninvasive anatomical imaging modalities of coronary artery calcium scoring and coronary CT angiography to the functional assessment modality of MPI in the diagnosis and prognostication of significant CAD in symptomatic patients. A large number of studies investigating this subject are analyzed with a critical look on the evidence, underlying the strengths and limitations. Although the overall findings of the presented studies are favoring the use of CT-based anatomical imaging modalities over MPI in the diagnosis and prognosticating of CAD, the lack of a high number of large- scale, multicenter randomized controlled studies limits the generalizability of this early evidence. Further studies comparing the short- and long-term clinical outcomes and cost-effectiveness of these tests are required to determine their optimal role in the management of symptomatic patients with suspected CAD.
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Maffei E, Seitun S, Martini C, Aldrovandi A, Arcadi T, Clemente A, Messalli G, Malagò R, Weustink A, Mollet N, Nieman K, Ardissino D, de Feyter P, Krestin G, Cademartiri F. Prognostic value of CT coronary angiography: focus on obstructive vs. nonobstructive disease and on the presence of left main disease. Radiol Med 2010; 116:15-31. [DOI: 10.1007/s11547-010-0592-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2009] [Accepted: 02/22/2010] [Indexed: 02/04/2023]
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Low dose CT of the heart: a quantum leap into a new era of cardiovascular imaging. LA RADIOLOGIA MEDICA 2010; 115:1179-207. [PMID: 20574700 DOI: 10.1007/s11547-010-0566-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2009] [Accepted: 12/15/2009] [Indexed: 10/19/2022]
Abstract
In 10 years, computed tomography coronary angiography (CTCA) has shifted from an investigational tool to clinical reality. Even though CT technologies are very advanced and widely available, a large body of evidence supporting the clinical role of CTCA is missing. The reason is that the speed of technological development has outpaced the ability of the scientific community to demonstrate the clinical utility of the technique. In addition, with each new CT generation, there is a further broadening of actual and potential applications. In this review we examine the state of the art on CTCA. In particular, we focus on issues concerning technological development, radiation dose, implementation, training and organisation.
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Left ventricular ejection fraction: real-world comparison between cardiac computed tomography and echocardiography in a large population. Radiol Med 2010; 115:1015-27. [PMID: 20221709 DOI: 10.1007/s11547-010-0542-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2009] [Accepted: 08/04/2009] [Indexed: 10/19/2022]
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Min JK, Lin FY, Dunning AM, Delago A, Egan J, Shaw LJ, Berman DS, Callister TQ. Incremental prognostic significance of left ventricular dysfunction to coronary artery disease detection by 64-detector row coronary computed tomographic angiography for the prediction of all-cause mortality: results from a two-centre study of 5330 patients. Eur Heart J 2010; 31:1212-9. [DOI: 10.1093/eurheartj/ehq020] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Abstract
With advancements in temporal and spatial resolution, CT has excellent diagnostic characteristics for non-invasive evaluation of coronary artery disease in appropriate patients. Nevertheless, clinical usefulness of diagnostic testing requires not only high diagnostic accuracy but also risk stratification for patient management. Current guidelines for risk stratification of patients with coronary artery disease rely primarily upon functional testing; alternatively, anatomic risk stratification may also be performed with invasive coronary angiography. This article reviews current and emerging concepts in the prognostic value of cardiac CT angiography.
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Affiliation(s)
- Fay Y Lin
- Department of Medicine, Division of Cardiology, Weill Medical College of Cornell University, New York Presbyterian Hospital, NY 10021, USA
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23
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Healy KO, Axsom K, Min JK. Prognosis and coronary computed tomographic angiography: current and emerging concepts. J Nucl Cardiol 2009; 16:981-8. [PMID: 19763727 DOI: 10.1007/s12350-009-9146-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Kirsten O Healy
- Department of Medicine, Weill Cornell Medical College of Cornell University, New York Presbyterian Hospital, New York, NY 10021, USA
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