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Guo FQ, Wu BL, Liu XW, Pan T, Gao BL, Li CY. Three-Tesla magnetic resonance imaging of left ventricular volume and function in comparison with computed tomography and echocardiography. Medicine (Baltimore) 2023; 102:e33549. [PMID: 37058049 PMCID: PMC10101249 DOI: 10.1097/md.0000000000033549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/15/2023] Open
Abstract
This study investigated the correlation between 3-Tesla magnetic resonance imaging (MRI) and 256 multiple-slice computed tomography (MSCT) or 2-dimensional echocardiography (ECHO) in evaluating left ventricle. Forty patients were retrospectively enrolled to undergo cardiac MSCT, 3-Tesla MRI and 2-dimensional ECHO within 1 week. The end-diastolic (EDV) and end-systolic volume (ESV), stroke volume (SV) and ejection fraction (EF) were analyzed and compared. MSCT was highly significantly correlated with MRI. Compared with MRI, MSCT slightly overestimated ESV for about 8.7 mL, but slightly underestimated EF and SV for about 6.8% and 5.8 mL, respectively. A high consistency existed between MSCT and MRI, with the 95% limit of agreement (-19.6, 25.4) mL for EDV, (-2.6,20.1) mL for ESV, (-28.3,16.6) mL for SV, and (-18.8%,5.1) % for EF. ECHO was also significantly correlated with MRI. The ECHO slightly underestimated the left ventricular function compared with MRI, with an underestimation of 9.4 mL for EDV, 3.5 mL for ESV, 5.8 mL for SV and 1.0% for EF. A wider agreement limit existed between MRI and ECHO. MSCT has a better correlation and agreement relationship with MRI parameters than 2-dimensional ECHO in assessing the left ventricle and may serve as a possible alternative to MRI.
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Affiliation(s)
- Fu-Qian Guo
- Department of Medical Imaging, The Second Hospital, Hebei Medical University, Shijiazhuang, Hebei Province, China
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Maroules CD, Rybicki FJ, Ghoshhajra BB, Batlle JC, Branch K, Chinnaiyan K, Hamilton-Craig C, Hoffmann U, Litt H, Meyersohn N, Shaw LJ, Villines TC, Cury RC. 2022 use of coronary computed tomographic angiography for patients presenting with acute chest pain to the emergency department: An expert consensus document of the Society of cardiovascular computed tomography (SCCT): Endorsed by the American College of Radiology (ACR) and North American Society for cardiovascular Imaging (NASCI). J Cardiovasc Comput Tomogr 2023; 17:146-163. [PMID: 36253281 DOI: 10.1016/j.jcct.2022.09.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 11/22/2022]
Abstract
Coronary computed tomography angiography (CTA) improves the quality of care for patients presenting with acute chest pain (ACP) to the emergency department (ED), particularly in patients with low to intermediate likelihood of acute coronary syndrome (ACS). The Society of Cardiovascular Computed Tomography Guidelines Committee was formed to develop recommendations for acquiring, interpreting, and reporting of coronary CTA to ensure appropriate, safe, and efficient use of this modality. Because of the increasing use of coronary CTA testing for the evaluation of ACP patients, the Committee has been charged with the development of the present document to assist physicians and technologists. These recommendations were produced as an educational tool for practitioners evaluating acute chest pain patients in the ED, in the interest of developing systematic standards of practice for coronary CTA based on the best available data or broad expert consensus. Due to the highly variable nature of medical care, approaches to patient selection, preparation, protocol selection, interpretation or reporting that differs from these guidelines may represent an appropriate variation based on a legitimate assessment of an individual patient's needs.
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Affiliation(s)
| | - Frank J Rybicki
- Department of Radiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Brian B Ghoshhajra
- Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
| | - Juan C Batlle
- Department of Radiology, Baptist Cardiac and Vascular Institute, Miami, FL, USA
| | - Kelley Branch
- Department of Cardiology, University of Washington School of Medicine, Seattle, WA, USA
| | | | | | - Udo Hoffmann
- Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
| | - Harold Litt
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Nandini Meyersohn
- Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
| | | | - Todd C Villines
- Department of Cardiology, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Ricardo C Cury
- Department of Radiology, Baptist Cardiac and Vascular Institute, Miami, FL, USA
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Carrabba N, Pontone G, Andreini D, Buffa V, Cademartiri F, Carbone I, Clemente A, Guaricci AI, Guglielmo M, Indolfi C, La Grutta L, Ligabue G, Liguori C, Mercuro G, Mushtaq S, Neglia D, Palmisano A, Sciagrà R, Seitun S, Vignale D, Francone M, Esposito A. Appropriateness criteria for the use of cardiac computed tomography, SIC-SIRM part 2: acute chest pain evaluation; stent and coronary artery bypass graft patency evaluation; planning of coronary revascularization and transcatheter valve procedures; cardiomyopathies, electrophysiological applications, cardiac masses, cardio-oncology and pericardial diseases evaluation. J Cardiovasc Med (Hagerstown) 2022; 23:290-303. [PMID: 35486680 DOI: 10.2459/jcm.0000000000001303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In the past 20 years, cardiac computed tomography (CCT) has become a pivotal technique for the noninvasive diagnostic workup of coronary and cardiac diseases. Continuous technical and methodological improvements, combined with fast growing scientific evidence, have progressively expanded the clinical role of CCT. Randomized clinical trials documented the value of CCT in increasing the cost-effectiveness of the management of patients with acute chest pain presenting in the emergency department, also during the pandemic. Beyond the evaluation of stents and surgical graft patency, the anatomical and functional coronary imaging have the potential to guide treatment decision-making and planning for complex left main and three-vessel coronary disease. Furthermore, there has been an increasing demand to use CCT for preinterventional planning in minimally invasive procedures, such as transcatheter valve implantation and mitral valve repair. Yet, the use of CCT as a roadmap for tailored electrophysiological procedures has gained increasing importance to assure maximum success. In the meantime, innovations and advanced postprocessing tools have generated new potential applications of CCT from the simple coronary anatomy to the complete assessment of structural, functional and pathophysiological biomarkers of cardiac disease. In this complex and revolutionary scenario, it is urgently needed to provide an updated guide for the appropriate use of CCT in different clinical settings. This manuscript, endorsed by the Italian Society of Cardiology (SIC) and the Italian Society of Medical and Interventional Radiology (SIRM), represents the second of two consensus documents collecting the expert opinion of cardiologists and radiologists about current appropriate use of CCT.
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Affiliation(s)
- Nazario Carrabba
- Department of Cardiothoracovascular Medicine, Azienda Ospedaliero-Universitaria Careggi, Florence
| | | | - Daniele Andreini
- Centro Cardiologico Monzino IRCCS.,Department of Clinical Sciences and Community Health, University of Milan, Milan
| | - Vitaliano Buffa
- Department of Radiology, Azienda Ospedaliera San Camillo Forlanini, Rome
| | | | - Iacopo Carbone
- Department of Radiological, Oncological and Pathological Sciences, 'Sapienza' University of Rome, Rome
| | - Alberto Clemente
- Department of Radiology, CNR (National Council of Research)/Tuscany Region 'Gabriele Monasterio' Foundation (FTGM), Massa
| | - Andrea Igoren Guaricci
- University Cardiology Unit, Cardiothoracic Department, Policlinic University Hospital, Bari
| | | | - Ciro Indolfi
- Department of Medical and Surgical Sciences, Magna Grecia University, Catanzaro
| | - Ludovico La Grutta
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties-ProMISE, University of Palermo
| | - Guido Ligabue
- Department of Medical and Surgical Sciences, Modena and Raggio Emilia University.,Radiology Department, AOU of Modena, Modena
| | - Carlo Liguori
- Radiology Unit, Ospedale del Mare -A.S.L Na1- Centro, Naples
| | - Giuseppe Mercuro
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari
| | | | - Danilo Neglia
- Cardiovascular Department, CNR (National Council of Research)/Tuscany Region 'Gabriele Monasterio' Foundation (FTGM), Pisa
| | - Anna Palmisano
- Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS Ospedale San Raffaele.,Vita-Salute San Raffaele University, Milan
| | - Roberto Sciagrà
- Nuclear Medicine Unit, Department of Experimental and Clinical Biomedical Sciences 'Mario Serio', University of Florence, Florence
| | - Sara Seitun
- Radiology Department, Ospedale Policlinico San Martino, IRCCS Per L'Oncologia e le Neuroscienze, Genoa, Italy
| | - Davide Vignale
- Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS Ospedale San Raffaele.,Vita-Salute San Raffaele University, Milan
| | - Marco Francone
- Department of Radiological, Oncological and Pathological Sciences, 'Sapienza' University of Rome, Rome
| | - Antonio Esposito
- Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS Ospedale San Raffaele.,Vita-Salute San Raffaele University, Milan
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Lee SH, Choo KS. The Potential Role of Cardiac CT in Patients with Acute Coronary Syndrome. JOURNAL OF THE KOREAN SOCIETY OF RADIOLOGY 2022; 83:28-41. [PMID: 36237362 PMCID: PMC9238217 DOI: 10.3348/jksr.2021.0174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 12/16/2021] [Accepted: 12/27/2021] [Indexed: 11/15/2022]
Affiliation(s)
- Sang Hyun Lee
- Department of Cardiology, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Ki Seok Choo
- Department of Radiology, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
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Palmisano A, Vignale D, Tadic M, Moroni F, De Stefano D, Gatti M, Boccia E, Faletti R, Oppizzi M, Peretto G, Slavich M, Sala S, Montorfano M, Agricola E, Margonato A, De Cobelli F, Gentile F, Robella M, Cortese G, Esposito A. Myocardial Late Contrast Enhancement CT in Troponin-Positive Acute Chest Pain Syndrome. Radiology 2021; 302:545-553. [PMID: 34874200 DOI: 10.1148/radiol.211288] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background Acute chest pain with mild troponin rise and inconclusive diagnosis after clinical evaluation represents a diagnostic challenge. Triple-rule-out (TRO) CT may exclude coronary artery disease (CAD), as well as acute aortic syndrome and pulmonary embolism, but cannot help identify other causes of myocardial injury. Purpose To investigate the diagnostic value of a comprehensive CT protocol including both an angiographic and a late contrast enhancement (LCE) scan in participants with troponin-positive acute chest pain. Materials and Methods In this prospective study, consecutive patients with troponin-positive acute chest pain or anginal equivalent and inconclusive diagnosis after clinical evaluation (symptoms, markers, electrocardiography, and echocardiography) who underwent TRO CT between June 2018 and September 2020 were enrolled. TRO CT was performed to evaluate the presence of obstructive CAD (stenosis ≥50%), acute aortic syndrome, and pulmonary embolism. If the findings on the TRO CT scan were negative, an LCE CT scan was acquired after 10 minutes to assess the presence and pattern of scar and quantify the myocardial extracellular volume fraction. CT-based diagnoses were compared with diagnoses obtained with reference standard methods, including invasive coronary angiography, cardiac MRI, and endomyocardial biopsy. Results Eighty-four patients (median age, 69 years [interquartile range, 50-77 years]; 45 men) were enrolled. TRO CT helped identify obstructive CAD in 35 participants (42%), acute aortic syndrome in one (1.2%), and pulmonary embolism in six (7.1%). LCE CT scans were acquired in the remaining 42 participants. The following diagnoses were reached with use of LCE CT: myocarditis (22 of 42 participants [52%]), takotsubo cardiomyopathy (four of 42 [10%]), amyloidosis (three of 42 [7.1%]), myocardial infarction with nonobstructed coronary arteries (three of 42 [7.1%]), dilated cardiomyopathy (two of 42 [4.8%]), and negative or inconclusive findings (eight of 42 [19%]). The addition of LCE CT improved the diagnostic rate of TRO CT from 42 of 84 participants (50% [95% CI: 38.9, 61.1]) to 76 of 84 (90% [95% CI: 82.1, 95.8]) (P < .001). Conclusion A CT protocol including triple-rule-out and late contrast enhancement CT scans improved diagnostic rate in participants presenting with acute chest pain syndrome. © RSNA, 2021 Online supplemental material is available for this article. See also the editorial by Nagpal and Bluemke in this issue.
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Affiliation(s)
- Anna Palmisano
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Davide Vignale
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Marijana Tadic
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Francesco Moroni
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Domenico De Stefano
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Marco Gatti
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Edda Boccia
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Riccardo Faletti
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Michele Oppizzi
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Giovanni Peretto
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Massimo Slavich
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Simone Sala
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Matteo Montorfano
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Eustachio Agricola
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Alberto Margonato
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Francesco De Cobelli
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Francesco Gentile
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Mattia Robella
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Giancarlo Cortese
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
| | - Antonio Esposito
- From the Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy (A.P., D.V., D.D.S., F.D.C., A.E.); School of Medicine, Vita-Salute San Raffaele University, Milan, Italy (A.P., D.V., E.B., F.D.C., A.E.); Department of Cardiology, University Hospital Dr Dragiša Mišović Dedinje, Belgrade, Serbia (M.T.); Interventional Cardiology Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (F.M., M.M.); UOC Diagnostica per Immagini e Radiologia Interventistica, Policlinico Universitario Campus Bio-Medico, Rome, Italy (D.D.S.); Department of Surgical Sciences, Radiology Unit, University of Turin, Turin, Italy (M.G., R.F., F.G., M.R.); Clinical Cardiology Unit, Cardio-Thoracic-Vascular Department, IRCCS San Raffaele University Hospital, Milan, Italy (M.O., M.S., A.M.); Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Scientific Institute, Milan, Italy (G.P., S.S.); Cardiovascular Imaging Unit, Cardio-Thoracic-Vascular Department, San Raffaele Scientific Institute, Milan, Italy (E.A.); and Department of Diagnostic Radiology, Ospedale Maria Vittoria, Turin, Italy (G.C.)
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Son MJ, Yoo SM, Lee D, Lee HY, Song IS, Chun EJ, White CS. Current Role of Computed Tomography in the Evaluation of Acute Coronary Syndrome. Diagnostics (Basel) 2021; 11:diagnostics11020266. [PMID: 33572267 PMCID: PMC7914414 DOI: 10.3390/diagnostics11020266] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/07/2021] [Accepted: 02/07/2021] [Indexed: 02/07/2023] Open
Abstract
This review article provides an overview regarding the role of computed tomography (CT) in the evaluation of acute chest pain (ACP) in the emergency department (ED), focusing on characteristic CT findings.
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Affiliation(s)
- Min Ji Son
- Department of Radiology, CHA University Bundang Medical Center, Bundang 13497, Korea;
| | - Seung Min Yoo
- Department of Radiology, CHA University Bundang Medical Center, Bundang 13497, Korea;
- Correspondence: ; Tel.: +82-3-780-5423
| | - Dongjun Lee
- Military Service in Korean Army, Hongcheon 25117, Korea;
| | | | - In Sup Song
- Department of Radiology, Chun Ju Jesus General Hospital, Chun Ju 54987, Korea;
| | - Eun Ju Chun
- Department of Radiology, Seoul National University Bundang Medical Center, Seongnam 13620, Korea;
| | - Charles S White
- Department of Radiology, University of Maryland, Baltimore, MD 21201, USA;
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Peper J, Suchá D, Swaans M, Leiner T. Functional cardiac CT-Going beyond Anatomical Evaluation of Coronary Artery Disease with Cine CT, CT-FFR, CT Perfusion and Machine Learning. Br J Radiol 2020; 93:20200349. [PMID: 32783626 DOI: 10.1259/bjr.20200349] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The aim of this review is to provide an overview of different functional cardiac CT techniques which can be used to supplement assessment of the coronary arteries to establish the significance of coronary artery stenoses. We focus on cine-CT, CT-FFR, CT-myocardial perfusion and how developments in machine learning can supplement these techniques.
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Affiliation(s)
- Joyce Peper
- Department of Cardiology, St. Antonius Hospital Koekoekslaan 1, Nieuwegein, the Netherlands.,Department of Radiology, University Medical Center Utrecht, Heidelberglaan 100, 3584CX, Utrecht, The Netherlands
| | - Dominika Suchá
- Department of Radiology, University Medical Center Utrecht, Heidelberglaan 100, 3584CX, Utrecht, The Netherlands
| | - Martin Swaans
- Department of Cardiology, St. Antonius Hospital Koekoekslaan 1, Nieuwegein, the Netherlands
| | - Tim Leiner
- Department of Radiology, University Medical Center Utrecht, Heidelberglaan 100, 3584CX, Utrecht, The Netherlands
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8
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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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Taron J, Foldyna B, Eslami P, Hoffmann U, Nikolaou K, Bamberg F. Cardiac Computed Tomography - More Than Coronary Arteries? A Clinical Update. ROFO-FORTSCHR RONTG 2019; 191:817-826. [PMID: 31250415 PMCID: PMC6839890 DOI: 10.1055/a-0924-5883] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Rapid improvement of scanner and postprocessing technology as well as the introduction of minimally invasive procedures requiring preoperative imaging have led to the broad utilization of cardiac computed tomography (CT) beyond coronary CT angiography (CTA). METHOD This review article presents an overview of recent literature on cardiac CT. The goal is to summarize the current guidelines on performing cardiac CT and to list established as well as emerging techniques with a special focus on extracoronary applications. RESULTS AND CONCLUSION Most recent guidelines for the appropriate use of cardiac CT include the evaluation of coronary artery disease, cardiac morphology, intra- and extracardiac structures, and functional and structural assessment of the myocardium under certain conditions. Besides coronary CTA, novel applications such as the calculation of a CT-derived fractional flow reserve (CT-FFR), assessment of myocardial function and perfusion imaging, as well as pre-interventional planning in valvular heart disease or prior pulmonary vein ablation in atrial fibrillation are becoming increasingly important. Especially these extracoronary applications are of growing interest in the field of cardiac CT and are expected to be gradually implemented in the daily clinical routine. KEY POINTS · Coronary artery imaging remains the main indication for cardiac CT. · Novel computational fluid dynamics allow the calculation of a CT-derived fractional flow reserve in patients with known or suspected coronary artery disease. · Cardiac CT delivers information on left ventricular volume as well as myocardial function and perfusion. · CT is the cardinal element for pre-interventional planning in transcatheter valve implantation and pulmonary vein isolation. CITATION FORMAT · Taron J, Foldyna B, Eslami P et al. Cardiac Computed Tomography - More Than Coronary Arteries? A Clinical Update. Fortschr Röntgenstr 2019; 191: 817 - 826.
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Affiliation(s)
- Jana Taron
- Cardiac MR PET CT Program, Massachusetts General-Hospital – Harvard Medical School, Boston, United States
- Department of Diagnostic and Interventional Radiology, University-Hospital Tübingen, Germany
| | - Borek Foldyna
- Cardiac MR PET CT Program, Massachusetts General-Hospital – Harvard Medical School, Boston, United States
| | - Parastou Eslami
- Cardiac MR PET CT Program, Massachusetts General-Hospital – Harvard Medical School, Boston, United States
| | - Udo Hoffmann
- Cardiac MR PET CT Program, Massachusetts General-Hospital – Harvard Medical School, Boston, United States
| | - Konstantin Nikolaou
- Department of Diagnostic and Interventional Radiology, University-Hospital Tübingen, Germany
| | - Fabian Bamberg
- Department of Diagnostic and Interventional Radiology, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
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Ferencik M, Lu MT, Mayrhofer T, Puchner SB, Liu T, Maurovich-Horvat P, Ghemigian K, Ivanov A, Adami E, Nagurney JT, Woodard PK, Truong QA, Udelson JE, Hoffmann U. Non-invasive fractional flow reserve derived from coronary computed tomography angiography in patients with acute chest pain: Subgroup analysis of the ROMICAT II trial. J Cardiovasc Comput Tomogr 2019; 13:196-202. [PMID: 31113728 DOI: 10.1016/j.jcct.2019.05.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 03/30/2019] [Accepted: 05/14/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Non-invasive fractional flow reserve (FFRCT) derived from coronary computed tomography angiography (CTA) permits hemodynamic evaluation of coronary stenosis and may improve efficiency of assessment in stable chest pain patients. We determined feasibility of FFRCT in the population of acute chest pain patients and assessed the relationship of FFRCT with outcomes of acute coronary syndrome (ACS) and revascularization and with plaque characteristics. METHODS We included 68 patients (mean age 55.8 ± 8.4 years, 71% men) from the ROMICAT II trial who had ≥50% stenosis on coronary CTA or underwent additional non-invasive stress test. We evaluated coronary stenosis and high-risk plaque on coronary CTA. FFRCT was measured in a core laboratory. RESULTS We found correlation between anatomic severity of stenosis and FFRCT ≤0.80 vs. FFRCT >0.80 (severe stenosis 84.8% vs. 15.2%; moderate stenosis 33.3% vs. 66.7%; mild stenosis 33.3% vs. 66.7% patients). Patients with severe stenosis had lower FFRCT values (median 0.64, 25th-75th percentile 0.50-0.75) as compared to patients with moderate (median 0.84, 25th-75th percentile, p < 0.001) or mild stenosis (median 0.86, 25th-75th percentile 0.78-0.88, p < 0.001). The relative risk of ACS and revascularization in patients with positive FFRCT ≤0.80 was 4.03 (95% CI 1.56-10.36) and 3.50 (95% CI 1.12-10.96), respectively. FFRCT ≤0.80 was associated with the presence of high-risk plaque (odds ratio 3.91, 95% CI 1.55-9.85, p = 0.004) after adjustment for stenosis severity. CONCLUSION Abnormal FFRCT was associated with the presence of ACS, coronary revascularization, and high-risk plaque. FFRCT measurements correlated with anatomic severity of stenosis on coronary CTA and were feasible in population of patients with acute chest pain.
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Affiliation(s)
- Maros Ferencik
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, OR, USA; Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
| | - Michael T Lu
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Thomas Mayrhofer
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; School of Business Studies, Stralsund University of Applied Sciences, Stralsund, Germany
| | - Stefan B Puchner
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Ting Liu
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Pal Maurovich-Horvat
- MTA-SE Cardiovascular Imaging Research Group, Heart and Vascular Centre, Semmelweis University, Budapest, Hungary
| | - Khristine Ghemigian
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Alexander Ivanov
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Elizabeth Adami
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - John T Nagurney
- Department of Emergency Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Pamela K Woodard
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Quynh A Truong
- Department of Radiology, New York-Presbyterian Hospital and Weill Cornell Medicine, New York, NY, USA
| | - James E Udelson
- Division of Cardiology and the Cardio-Vascular Center, Tufts Medical Center, Boston, MA, USA
| | - Udo Hoffmann
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
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11
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Verheij VA, Scholtz JE, Meyersohn NM, Parry BA, Hoffmann U, Ghoshhajra BB, Nagurney JT. Secondary cardiac risk stratifying tests after coronary computed tomography angiography in emergency department patients. J Cardiovasc Comput Tomogr 2018; 12:500-508. [PMID: 30340962 DOI: 10.1016/j.jcct.2018.10.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 09/15/2018] [Accepted: 10/02/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND Several large trials demonstrated that coronary computed tomography angiography (CTA) in a triage strategy could lead to increased secondary cardiac risk stratifying testing (SCRST). Whether this is true for routine clinical care remains unclear. We measured SCRSTs after coronary CTA was implemented in our emergency department (ED) practice by CTA result, and if locally existing management recommendations for a structured post CTA diagnostic strategy were followed. METHODS This single site retrospective cohort study included all our ED patients who received coronary CTA between October 1, 2012 and September 30, 2016. SCRST's included functional cardiac tests and invasive coronary angiography (ICA), performed during the ED coronary CTA visit or related admission. RESULTS A total of 1916 subjects were included with a mean age of 52.9 ± 10.8 years. Of their coronary CTAs, 179 were positive (severe stenosis, occlusion or ventricular wall motion abnormalities; 9.3%), 105 intermediate (moderate stenosis; 5.5%), 1611 negative (no to mild obstructive CAD; 84.1%) and 21 non-diagnostic (1.1%). SCRSTs were performed in 237 (overall 12.4%, noninvasive in 5.6%, ICA in 6.7%). After positive coronary CTA, 73.7% of subjects received SCRSTs. For intermediate, negative and non-diagnostic CTAs this was 72.4%, 1.1% and 47.6% respectively. Management conformed to local management recommendations in 96.2% of cases. CONCLUSION In spite of previous trials, rates of secondary cardiac risk stratifying tests after routine clinical ED coronary CTA are low, especially in patients with negative coronary CTA. Structured management guidelines for post coronary CTA, and adherence to these guidelines, appear essential.
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Affiliation(s)
- Vincent A Verheij
- Department of Emergency Medicine, Massachusetts General Hospital & Harvard Medical School, 55 Fruit Street, Boston, MA, 02114, USA.
| | - Jan-Erik Scholtz
- Cardiac MR PET CT Program, Department of Radiology and Division of Cardiology, Massachusetts General Hospital & Harvard Medical School, 55 Fruit Street, Boston, MA, 02114, USA.
| | - Nandini M Meyersohn
- Cardiac MR PET CT Program, Department of Radiology and Division of Cardiology, Massachusetts General Hospital & Harvard Medical School, 55 Fruit Street, Boston, MA, 02114, USA.
| | - Blair A Parry
- Department of Emergency Medicine and Division of Research, Massachusetts General Hospital, 5 Emerson Place, Boston, MA, 02114, USA.
| | - Udo Hoffmann
- Cardiac MR PET CT Program, Department of Radiology and Division of Cardiology, Massachusetts General Hospital & Harvard Medical School, 55 Fruit Street, Boston, MA, 02114, USA.
| | - Brian B Ghoshhajra
- Cardiac MR PET CT Program, Department of Radiology and Division of Cardiology, Massachusetts General Hospital & Harvard Medical School, 55 Fruit Street, Boston, MA, 02114, USA.
| | - John T Nagurney
- Department of Emergency Medicine, Massachusetts General Hospital & Harvard Medical School, 55 Fruit Street, Boston, MA, 02114, USA.
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12
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Regional myocardial strain measurements from 4DCT in patients with normal LV function. J Cardiovasc Comput Tomogr 2018; 12:372-378. [PMID: 29784623 DOI: 10.1016/j.jcct.2018.05.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 02/09/2018] [Accepted: 05/03/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND CT SQUEEZ is a new automated technique to evaluate regional endocardial strain by tracking features on the endocardium from 4D cine CT data. The objective of this study was to measure the range of endocardial regional strain (RSCT) values obtained with CT SQUEEZ in the normal human left ventricle (LV) from standard clinical 4D coronary CTA exams. METHODS RSCT was measured over the heart cycle in 25 humans with normal LV function using cine CT from three vendors. Mean and standard deviation of RSCT values were computed in 16 AHA LV segments to estimate the range of values expected in the normal LV. RESULTS Curves describing RSCT vs. time were consistent between subjects. There was a slight gradient of decreasing minimum RSCT value (increased shortening) from the base to the apex of the heart. Mean RSCT values at end-systole were: base = -32% ± 1%, mid = -33% ± 1%, apex = -36% ± 1%. The standard deviation of the minimum systolic RSCT in each segment over all subjects was 5%. The average time to reach maximum shortening was 34% of the RR interval. CONCLUSIONS Regional strain (RSCT) can be rapidly obtained from standard gated coronary CCTA protocols using 4DCT SQUEEZ processing. We estimate that 95% of normal LV end-systolic RSCT values will fall between -23% and -43%; therefore, we hypothesize that an RSCT value higher than -23% will indicate a hypokinetic segment in the human heart.
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Abstract
Resting regional wall motion abnormality (RWMA) has significant prognostic value beyond the findings of computed tomography (CT) coronary angiography. Stretch quantification of endocardial engraved zones (SQUEEZ) has been proposed as a measure of regional cardiac function. The purpose of the work reported here was to determine the effect of lowering the radiation dose on the precision of automatic SQUEEZ assessments of RWMA. Chronic myocardial infarction was created by a 2-h occlusion of the left anterior descending coronary artery in 10 swine (heart rates 80-100, ejection fraction 25-57%). CT was performed 5-11 months post infarct using first-pass contrast enhanced segmented cardiac function scans on a 320-detector row scanner at 80 kVp/500 mA. Images were reconstructed at end diastole and end systole with both filtered back projection and using the "standard" adaptive iterative dose reduction (AIDR) algorithm. For each acquisition, 9 lower dose acquisitions were created. End systolic myocardial function maps were calculated using SQUEEZ for all noise levels and contrast-to-noise ratio (CNR) between the left ventricle blood and myocardium was calculated as a measure of image quality. For acquisitions with CNR > 4, SQUEEZ could be estimated with a precision of ± 0.04 (p < 0.001) or 5.7% of its dynamic range. The difference between SQUEEZ values calculated from AIDR and FBP images was not statistically significant. Regional wall motion abnormality can be quantified with good precision from low dose acquisitions, using SQUEEZ, as long as the blood-myocardium CNR stays above 4.
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14
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Scholtz JE, Ghoshhajra B. Advances in cardiac CT contrast injection and acquisition protocols. Cardiovasc Diagn Ther 2017; 7:439-451. [PMID: 29255688 PMCID: PMC5716940 DOI: 10.21037/cdt.2017.06.07] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 05/25/2017] [Indexed: 01/27/2023]
Abstract
Cardiac computed tomography (CT) imaging has become an important part of modern cardiovascular care. Coronary CT angiography (CTA) is the first choice imaging modality for non-invasive visualization of coronary artery stenosis. In addition, cardiac CT does not only provide anatomical evaluation, but also functional and valvular assessment, and myocardial perfusion evaluation. In this article we outline the factors which influence contrast enhancement, give an overview of current contrast injection and acquisition protocols, with focus on current emerging topics such as pre-transcatheter aortic valve replacement (TAVR) planning, cardiac CT for congenital heart disease (CHD) patients, and myocardial CT perfusion (CTP). Further, we point out areas where we see potential for future improvements in cardiac CT imaging based on a closer interaction between CT scanner settings and contrast injection protocols to tailor injections to patient- and exam-specific factors.
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Affiliation(s)
- Jan-Erik Scholtz
- Cardiac MR PET CT Program, Department of Radiology (Cardiovascular Imaging) and Division of Cardiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Brian Ghoshhajra
- Cardiac MR PET CT Program, Department of Radiology (Cardiovascular Imaging) and Division of Cardiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
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15
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Computed Tomography Diagnosis of Nonspecific Acute Chest Pain in the Emergency Department: From Typical Acute Coronary Syndrome to Various Unusual Mimics. J Thorac Imaging 2017; 32:26-35. [PMID: 27819965 DOI: 10.1097/rti.0000000000000241] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
It is a challenging task for emergency department physicians to establish a precise and rapid diagnosis based only on clinical and laboratory findings in patients who present with nonspecific acute chest pain. In this circumstance, CT angiography can provide important clues to the diagnosis. To provide a rapid diagnosis of acute coronary syndrome (ACS) and its various mimics, the physician should enumerate each possible cause of acute chest pain on the basis of an objective assessment of pretest probability. On the basis of clinical suspicion, the appropriate CT protocol should then be performed. Moreover, radiologists should be familiar with typical CT findings of ACS and its various mimics to assist the emergency department physician in diagnosing patients with nonspecific acute chest pain. This review article presents an overview on choosing an appropriate CT protocol in patients with nonspecific acute chest pain and provides specific CT findings of ACS and various mimics of ACS.
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16
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The Potential Role of Combined Highly Sensitive Troponin and Coronary Computed Tomography Angiography in the Evaluation of Patients with Suspected Acute Coronary Syndrome in the Emergency Department. CURRENT CARDIOVASCULAR IMAGING REPORTS 2016. [DOI: 10.1007/s12410-016-9393-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Ferencik M, Hoffmann U, Bamberg F, Januzzi JL. Highly sensitive troponin and coronary computed tomography angiography in the evaluation of suspected acute coronary syndrome in the emergency department. Eur Heart J 2016; 37:2397-405. [PMID: 26843275 PMCID: PMC6279199 DOI: 10.1093/eurheartj/ehw005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 12/16/2015] [Accepted: 01/05/2016] [Indexed: 02/02/2023] Open
Abstract
The evaluation of patients presenting to the emergency department with suspected acute coronary syndrome (ACS) remains a clinical challenge. The traditional assessment includes clinical risk assessment based on cardiovascular risk factors with serial electrocardiograms and cardiac troponin measurements, often followed by advanced cardiac testing as inpatient or outpatient (i.e. stress testing, imaging). Despite this costly and lengthy work-up, there is a non-negligible rate of missed ACS with an increased risk of death. There is a clinical need for diagnostic strategies that will lead to rapid and reliable triage of patients with suspected ACS. We provide an overview of the evidence for the role of highly sensitive troponin (hsTn) in the rapid and efficient evaluation of suspected ACS. Results of recent research studies have led to the introduction of hsTn with rapid rule-in and rule-out protocols into the guidelines. Highly sensitive troponin increases the sensitivity for the detection of myocardial infarction and decreases time to diagnosis; however, it may decrease the specificity, especially when used as a dichotomous variable, rather than continuous variable as recommended by guidelines; this may increase clinician uncertainty. We summarize the evidence for the use of coronary computed tomography angiography (CTA) as the rapid diagnostic tool in this population when used with conventional troponin assays. Coronary CTA significantly decreases time to diagnosis and discharge in patients with suspected ACS, while being safe. However, it may lead to increase in invasive procedures and includes radiation exposure. Finally, we outline the opportunities for the combined use of hsTn and coronary CTA that may result in increased efficiency, decreased need for imaging, lower cost, and decreased radiation dose.
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Affiliation(s)
- Maros Ferencik
- Knight Cardiovascular Institute, Oregon Health and Science University, 3180 SW Sam Jackson Park Road, Mail Code UHN62, Portland, OR 97239, USA Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Udo Hoffmann
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA Cardiology Division, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Fabian Bamberg
- Department of Radiology, University of Tuebingen, Tuebingen, Germany
| | - James L Januzzi
- Cardiology Division, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
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18
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Kara B, Nayman A, Guler I, Gul EE, Koplay M, Paksoy Y. Quantitative Assessment of Left Ventricular Function and Myocardial Mass: A Comparison of Coronary CT Angiography with Cardiac MRI and Echocardiography. Pol J Radiol 2016; 81:95-102. [PMID: 27026794 PMCID: PMC4787523 DOI: 10.12659/pjr.895843] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 09/11/2015] [Indexed: 11/25/2022] Open
Abstract
Background The purpose of this study was to compare the left ventricular parameters obtained from multi-detector row computed tomography (MDCT) studies with two-dimensional echocardiography (2DE), and magnetic resonance imaging (MRI), which is accepted as the gold standard in the evaluation of left ventricular functions. The study also aimed to evaluate whether or not there is a relationship between the MR-Argus and CMR tools software programs which are used in post-process calculations of data obtained by MRI. Material/Methods Forty patients with an average age of 51.4±14.9 years who had been scanned with cardiac MDCT were evaluated with cardiac MRI and 2DE. End-diastolic volume (EDV), end-systolic volume (ESV), stroke volume (SV), ejection fraction (EF), cardiac output (CO), and myocardial mass values calculated by MDCT, MRI, and 2DE were compared with each other. Two different MR software programs were used to compare left ventricular functions. The CMR tools LV tutorials method is accepted as the gold standard because it can be used in three-dimensional functional evaluation. The Pearson Correlation and Bland-Altman analysis were performed to compare the results from the two MR methods (MR-Argus and CMR tools) and the results from both the MDCT and the 2DE with the CMR tools results. Results Strong positive correlations for EF values were found between the MDCT and CMR tools (r=0.702 p<0.001), and between the MR-Argus and CMR tools (r=0.746 p<0.001). The correlation between the 2DE and CMR tools (r=0.449 p<0.004), however, was only moderate. Similar results were obtained for the other parameters. The strongest correlation for ESV, EDV, and EF was between the two MR software programs. The correlation coefficient between the MDCT and CMR tools is close to the correlation coefficient between the two software programs. While the correlation between 2DE and CMR tools was satisfactory for ESV, EDV, and CO values, it was at a moderate level for the other parameters. Conclusions Left ventricular functional analysis can be performed easily and reliably with cardiac MDCT used for coronary artery evaluation and it also gives more accurate results than 2DE.
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Affiliation(s)
- Bedia Kara
- Department of Radiology, Buyuksehir Hospital, Konya, Turkey
| | - Alaaddin Nayman
- Department of Radiology, Selcuk University, Faculty of Medicine, Konya, Turkey
| | - Ibrahim Guler
- Department of Radiology, Selcuk University, Faculty of Medicine, Konya, Turkey
| | - Enes Elvin Gul
- Department of Cardiology, Medipol Mega University, Istanbul, Turkey
| | - Mustafa Koplay
- Department of Radiology, Selcuk University, Faculty of Medicine, Konya, Turkey
| | - Yahya Paksoy
- Department of Radiology, Selcuk University, Faculty of Medicine, Konya, Turkey
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19
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Left-sided cardiac chamber evaluation using single-phase mid-diastolic coronary computed tomography angiography: derivation of normal values and comparison with conventional end-diastolic and end-systolic phases. Eur Radiol 2016; 26:3626-34. [DOI: 10.1007/s00330-016-4211-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 01/04/2016] [Accepted: 01/08/2016] [Indexed: 12/31/2022]
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20
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Pourmorteza A, Chen MY, van der Pals J, Arai AE, McVeigh ER. Correlation of CT-based regional cardiac function (SQUEEZ) with myocardial strain calculated from tagged MRI: an experimental study. Int J Cardiovasc Imaging 2015; 32:817-23. [PMID: 26706935 DOI: 10.1007/s10554-015-0831-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 12/22/2015] [Indexed: 01/02/2023]
Abstract
The objective of this study was to investigate the correlation between local myocardial function estimates from CT and myocardial strain from tagged MRI in the same heart. Accurate detection of regional myocardial dysfunction can be an important finding in the diagnosis of functionally significant coronary artery disease. Tagged MRI is currently a reference standard for noninvasive regional myocardial function analysis; however, it has practical drawbacks. We have developed a CT imaging protocol and automated image analysis algorithm for estimating regional cardiac function from a few heartbeats. This method tracks the motion of the left ventricular (LV) endocardial surface to produce local function maps: we call the method Stretch Quantification of Endocardial Engraved Zones (SQUEEZ). Myocardial infarction was created by ligation of the left anterior descending coronary artery for 2 h followed by reperfusion in canine models. Tagged and cine MRI scans were performed during the reperfusion phase and first-pass contrast enhanced CT scans were acquired. The average delay between the CT and MRI scans was <1 h. Circumferential myocardial strain (Ecc) was calculated from the tagged MRI data. The agreement between peak systolic Ecc and SQUEEZ was investigated in 162 segments in the 9 hearts. Linear regression and Bland-Altman analysis was used to assess the correlation between the two metrics of local LV function. The results show good agreement between SQUEEZ and Ecc: (r = 0.71, slope = 0.78, p < 0.001). Furthermore, Bland-Altman showed a small bias of -0.02 with 95 % confidence interval of 0.1, and standard deviation of 0.05 representing ~6.5 % of the dynamic range of LV function. The good agreement between the estimates of local myocardial function obtained from CT SQUEEZ and tagged MRI provides encouragement to investigate the use of SQUEEZ for measuring regional cardiac function at a low clinical dose in humans.
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Affiliation(s)
- Amir Pourmorteza
- Department of Radiology and Imaging Sciences, National Institutes of Health Clinical Center, Bethesda, MD, USA.
| | - Marcus Y Chen
- Advanced Cardiovascular Imaging Laboratory, Cardiopulmonary Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jesper van der Pals
- Advanced Cardiovascular Imaging Laboratory, Cardiopulmonary Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Andrew E Arai
- Advanced Cardiovascular Imaging Laboratory, Cardiopulmonary Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Elliot R McVeigh
- Departments of Bioengineering, Medicine, and Radiology, University of California, San Diego, San Diego, CA, USA
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21
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ACR Appropriateness Criteria Acute Nonspecific Chest Pain—Low Probability of Coronary Artery Disease. J Am Coll Radiol 2015; 12:1266-71. [DOI: 10.1016/j.jacr.2015.09.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 09/03/2015] [Indexed: 11/24/2022]
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22
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Oda S, Katahira K, Utsunomiya D, Takaoka H, Honda K, Noda K, Oshima S, Yuki H, Namimoto T, Yamashita Y. Improved image quality at 256-slice coronary CT angiography in patients with a high heart rate and coronary artery disease: comparison with 64-slice CT imaging. Acta Radiol 2015; 56:1308-14. [PMID: 25348474 DOI: 10.1177/0284185114555152] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 09/19/2014] [Indexed: 11/16/2022]
Abstract
BACKGROUND The 256-slice computed tomography (CT) scanners with wider detector coverage and faster gantry rotation speed are now available. The performance of scanners that feature a rotation speed of 270 ms at coronary CT angiography (CCTA) has not been evaluated in patients with a higher heart rate. PURPOSE To evaluate the image quality of 256-slice CT with faster gantry rotation speed in patients undergoing CCTA. MATERIAL AND METHODS We enrolled 886 patients; 357(40.3%) underwent study on a 64-slice CT at a rotation speed of 420 ms, the other 529 (59.7%) were examined using a 256-slice CT scanner at 270 ms. Two observers judged the image quality of 2658 imaged coronary arteries on a 4-point scale. RESULTS The mean image quality score was significantly higher for the 256 - than the 64-slice CT scans (3.94 ± 0.28 vs. 3.73 ± 0.61; P < 0.01). There was no significant difference in the image quality scores between 64 - and 256-slice scans in patients whose heart rate (HR) was <60 bpm. However, in patients whose HR exceeded 60 bpm these scores were significantly higher for 256-slice CT images (P < 0.01). CONCLUSION CCTA performed on the 256-slice CT scanner yielded significantly better image quality in patients with an HR exceeding 60 bpm.
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Affiliation(s)
- Seitaro Oda
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Kazuhiro Katahira
- Department of Diagnostic Radiology, Kumamoto Chuo Hospital, Kumamoto, Japan
| | - Daisuke Utsunomiya
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Hiroko Takaoka
- Department of Diagnostic Radiology, Kumamoto Chuo Hospital, Kumamoto, Japan
| | - Keiichi Honda
- Department of Diagnostic Radiology, Kumamoto Chuo Hospital, Kumamoto, Japan
| | - Katsuo Noda
- Department of Cardiology, Kumamoto Chuo Hospital, Kumamoto, Japan
| | - Shuichi Oshima
- Department of Cardiology, Kumamoto Chuo Hospital, Kumamoto, Japan
| | - Hideaki Yuki
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tomohiro Namimoto
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yasuyuki Yamashita
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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23
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Bamberg F. The Whole Is Greater Than the Sum of its Parts: Combining CT Angiography and Highly Sensitive Troponin in the Diagnostic Work-Up of Patients With Acute Chest Pain. JACC Cardiovasc Imaging 2015; 8:1282-4. [PMID: 26563857 DOI: 10.1016/j.jcmg.2015.08.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 08/04/2015] [Accepted: 08/13/2015] [Indexed: 10/22/2022]
Affiliation(s)
- Fabian Bamberg
- Department of Diagnostic and Interventional Radiology, University of Tübingen, Tübingen, Germany.
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24
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Wichmann JL, Hu X, Engler A, Kerl JM, Beeres M, Frellesen C, Luboldt W, Vogl TJ, Bauer RW, Lehnert T. Dose levels and image quality of second-generation 128-slice dual-source coronary CT angiography in clinical routine. Radiol Med 2015; 120:1112-21. [PMID: 25981379 DOI: 10.1007/s11547-015-0546-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 04/28/2015] [Indexed: 01/06/2023]
Abstract
OBJECTIVES To compare radiation exposure and image quality of second-generation 128-slice dual-source CT (DSCT) coronary angiography (cCTA) protocols. MATERIALS AND METHODS We retrospectively analyzed data from four groups with 25 patients, each examined by one of the following DSCT cCTA protocols: prospectively ECG-gated high-pitch (group 1) or sequential (group 2) acquisition, retrospectively ECG-gated acquisition in dual-energy (DECT, group 3) or dual-source (group 4) mode. CT dose index volume, dose length product, estimated radiation dose, contrast-to-noise- and signal-to-noise-ratios were compared. Subjective image quality was rated by two observers blinded to the protocols. RESULTS High-pitch DSCT showed a mean estimated radiation dose of 1.27 ± 0.62 mSv, significantly (p < 0.01) lower than sequential (2.04 ± 0.94 mSv), dual-energy (3.97 ± 1.29 mSv) or dual-source (8.11 ± 4.95 mSv) acquisition. Image noise showed no statistical difference (p > 0.91), ranging from 15.2 ± 4.4 (group 2) up to 24.5 ± 22.0 (group 4). Each protocol showed diagnostic image quality in at least 98.1 % of evaluated coronary segments without significant differences (p > 0.05). CONCLUSIONS Prospectively ECG-gated DSCT protocols enable cCTA with significant dose reduction and consistently diagnostic image quality. In patients requiring retrospectively ECG-gated DSCT for functional analysis or due to arrhythmia, dual-energy mode should be preferred over dual-source mode as it significantly decreases estimated dose without compromising image quality.
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Affiliation(s)
- Julian L Wichmann
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt, Germany. .,Universitätsklinikum Frankfurt Am Main, Institut für Diagnostische Und Interventionelle Radiologie, Theodor-Stern-Kai 7, 60590, Frankfurt, Germany.
| | - Xiaohan Hu
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt, Germany
| | - Alexander Engler
- Department of Cranio-Maxillofacial and Plastic Facial Surgery, University Hospital Frankfurt, Frankfurt, Germany
| | - J Matthias Kerl
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt, Germany
| | - Martin Beeres
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt, Germany
| | - Claudia Frellesen
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt, Germany
| | - Wolfgang Luboldt
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt, Germany
| | - Thomas J Vogl
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt, Germany
| | - Ralf W Bauer
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt, Germany
| | - Thomas Lehnert
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt, Germany
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25
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Performance of Automated Software in the Assessment of Segmental Left Ventricular Function in Cardiac CT: Comparison with Cardiac Magnetic Resonance. Eur Radiol 2015; 25:3560-6. [PMID: 25925355 DOI: 10.1007/s00330-015-3767-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 03/09/2015] [Accepted: 04/02/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVE To evaluate the accuracy, reliability and time saving potential of a novel cardiac CT (CCT)-based, automated software for the assessment of segmental left ventricular function compared to visual and manual quantitative assessment of CCT and cardiac magnetic resonance (CMR). METHODS Forty-seven patients with suspected or known coronary artery disease (CAD) were enrolled in the study. Wall thickening was calculated. Segmental LV wall motion was automatically calculated and shown as a colour-coded polar map. Processing time for each method was recorded. RESULTS Mean wall thickness in both systolic and diastolic phases on polar map, CCT, and CMR was 9.2 ± 0.1 mm and 14.9 ± 0.2 mm, 8.9 ± 0.1 mm and 14.5 ± 0.1 mm, 8.3 ± 0.1 mm and 13.6 ± 0.1 mm, respectively. Mean wall thickening was 68.4 ± 1.5 %, 64.8 ± 1.4 % and 67.1 ± 1.4 %, respectively. Agreement for the assessment of LV wall motion between CCT, CMR and polar maps was good. Bland-Altman plots and ICC indicated good agreement between CCT, CMR and automated polar maps of the diastolic and systolic segmental wall thickness and thickening. The processing time using polar map was significantly decreased compared with CCT and CMR. CONCLUSION Automated evaluation of segmental LV function with polar maps provides similar measurements to manual CCT and CMR evaluation, albeit with substantially reduced analysis time. KEY POINTS • Cardiac computed tomography (CCT) can accurately assess segmental left ventricular wall function. • A novel automated software permits accurate and fast evaluation of wall function. • The software may improve the clinical implementation of segmental functional analysis.
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26
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Schlett CL, Hoffmann U, Geisler T, Nikolaou K, Bamberg F. Cardiac computed tomography for the evaluation of the acute chest pain syndrome: state of the art. Radiol Clin North Am 2015; 53:297-305. [PMID: 25726995 DOI: 10.1016/j.rcl.2014.11.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Coronary computed tomography angiography (CCTA) is recommended for the triage of acute chest pain in patients with a low-to-intermediate likelihood for acute coronary syndrome. Absence of coronary artery disease (CAD) confirmed by CCTA allows rapid emergency department discharge. This article shows that CCTA-based triage is as safe as traditional triage, reduces the hospital length of stay, and may provide cost-effective or even cost-saving care.
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Affiliation(s)
- Christopher L Schlett
- Department of Diagnostic and Interventional Radiology, University Hospital Heidelberg, Im Neuenheimer Feld 110, Heidelberg 69120, Germany; Cardiac MR PET CT Program, Massachusetts General Hospital, Harvard Medical School, 165 Cambridge St, Suite 400, Boston, MA 02114, USA
| | - Udo Hoffmann
- Cardiac MR PET CT Program, Massachusetts General Hospital, Harvard Medical School, 165 Cambridge St, Suite 400, Boston, MA 02114, USA
| | - Tobias Geisler
- Department of Cardiology and Cardiovascular Medicine University Hospital of Tübingen, Hoppe-Seyler-Straβe 3, Tübingen 72076, Germany
| | - Konstantin Nikolaou
- Department of Diagnostic and Interventional Radiology, University Hospital of Tübingen, Hoppe-Seyler-Straβe 3, Tübingen 72076, Germany
| | - Fabian Bamberg
- Cardiac MR PET CT Program, Massachusetts General Hospital, Harvard Medical School, 165 Cambridge St, Suite 400, Boston, MA 02114, USA; Department of Diagnostic and Interventional Radiology, University Hospital of Tübingen, Hoppe-Seyler-Straβe 3, Tübingen 72076, Germany.
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27
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Kim YJ, Yong HS, Kim SM, Kim JA, Yang DH, Hong YJ. Korean guidelines for the appropriate use of cardiac CT. Korean J Radiol 2015; 16:251-85. [PMID: 25741189 PMCID: PMC4347263 DOI: 10.3348/kjr.2015.16.2.251] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Accepted: 01/03/2015] [Indexed: 01/07/2023] Open
Abstract
The development of cardiac CT has provided a non-invasive alternative to echocardiography, exercise electrocardiogram, and invasive angiography and cardiac CT continues to develop at an exponential speed even now. The appropriate use of cardiac CT may lead to improvements in the medical performances of physicians and can reduce medical costs which eventually contribute to better public health. However, until now, there has been no guideline regarding the appropriate use of cardiac CT in Korea. We intend to provide guidelines for the appropriate use of cardiac CT in heart diseases based on scientific data. The purpose of this guideline is to assist clinicians and other health professionals in the use of cardiac CT for diagnosis and treatment of heart diseases, especially in patients at high risk or suspected of heart disease.
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Affiliation(s)
- Young Jin Kim
- Department of Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul 120-752, Korea
| | - Hwan Seok Yong
- Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, Seoul 152-703, Korea
| | - Sung Mok Kim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 135-710, Korea
| | - Jeong A Kim
- Department of Radiology, Ilsan Paik Hospital, Inje University College of Medicine, Goyang 411-706, Korea
| | - Dong Hyun Yang
- Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 138-736, Korea
| | - Yoo Jin Hong
- Department of Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul 120-752, Korea
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Rizvi A, Deaño RC, Bachman DP, Xiong G, Min JK, Truong QA. Analysis of ventricular function by CT. J Cardiovasc Comput Tomogr 2015; 9:1-12. [PMID: 25576407 PMCID: PMC4329068 DOI: 10.1016/j.jcct.2014.11.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 11/14/2014] [Indexed: 11/22/2022]
Abstract
The assessment of ventricular function, cardiac chamber dimensions, and ventricular mass is fundamental for clinical diagnosis, risk assessment, therapeutic decisions, and prognosis in patients with cardiac disease. Although cardiac CT is a noninvasive imaging technique often used for the assessment of coronary artery disease, it can also be used to obtain important data about left and right ventricular function and morphology. In this review, we will discuss the clinical indications for the use of cardiac CT for ventricular analysis, review the evidence on the assessment of ventricular function compared with existing imaging modalities such cardiac magnetic resonance imaging and echocardiography, provide a typical cardiac CT protocol for image acquisition and postprocessing for ventricular analysis, and provide step-by-step instructions to acquire multiplanar cardiac views for ventricular assessment from the standard axial, coronal, and sagittal planes. Furthermore, both qualitative and quantitative assessments of ventricular function as well as sample reporting are detailed.
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Affiliation(s)
- Asim Rizvi
- Department of Radiology, Dalio Institute of Cardiovascular Imaging, New York-Presbyterian Hospital and Weill Cornell Medical College, Suite 108, 413 East 69th Street, New York, NY 10021, USA
| | - Roderick C Deaño
- Division of Cardiovascular Disease, New York-Presbyterian Hospital and Weill Cornell Medical College, New York, NY, USA
| | - Daniel P Bachman
- Department of Radiology, Dalio Institute of Cardiovascular Imaging, New York-Presbyterian Hospital and Weill Cornell Medical College, Suite 108, 413 East 69th Street, New York, NY 10021, USA
| | - Guanglei Xiong
- Department of Radiology, Dalio Institute of Cardiovascular Imaging, New York-Presbyterian Hospital and Weill Cornell Medical College, Suite 108, 413 East 69th Street, New York, NY 10021, USA
| | - James K Min
- Department of Radiology, Dalio Institute of Cardiovascular Imaging, New York-Presbyterian Hospital and Weill Cornell Medical College, Suite 108, 413 East 69th Street, New York, NY 10021, USA; Division of Cardiovascular Disease, New York-Presbyterian Hospital and Weill Cornell Medical College, New York, NY, USA
| | - Quynh A Truong
- Department of Radiology, Dalio Institute of Cardiovascular Imaging, New York-Presbyterian Hospital and Weill Cornell Medical College, Suite 108, 413 East 69th Street, New York, NY 10021, USA; Division of Cardiovascular Disease, New York-Presbyterian Hospital and Weill Cornell Medical College, New York, NY, USA.
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Yamasaki Y, Nagao M, Yamamura K, Yonezawa M, Matsuo Y, Kawanami S, Kamitani T, Higuchi K, Sakamoto I, Shiokawa Y, Yabuuchi H, Honda H. Quantitative assessment of right ventricular function and pulmonary regurgitation in surgically repaired tetralogy of Fallot using 256-slice CT: comparison with 3-Tesla MRI. Eur Radiol 2014; 24:3289-99. [DOI: 10.1007/s00330-014-3344-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Revised: 06/24/2014] [Accepted: 07/11/2014] [Indexed: 10/24/2022]
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Raff GL, Chinnaiyan KM, Cury RC, Garcia MT, Hecht HS, Hollander JE, O'Neil B, Taylor AJ, Hoffmann U. SCCT guidelines on the use of coronary computed tomographic angiography for patients presenting with acute chest pain to the emergency department: A Report of the Society of Cardiovascular Computed Tomography Guidelines Committee. J Cardiovasc Comput Tomogr 2014; 8:254-71. [DOI: 10.1016/j.jcct.2014.06.002] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Accepted: 06/04/2014] [Indexed: 02/06/2023]
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Pursnani A, Lee A, Mayrhofer T, Panagia M, Sharma U, Abbara S, Hoffmann U, Ghoshhajra BB. Feasibility of a radiation dose conserving CT protocol for myocardial function assessment. Br J Radiol 2014; 87:20130755. [PMID: 24884727 DOI: 10.1259/bjr.20130755] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE Assessment of myocardial function can be performed at higher noise levels than necessary for coronary arterial evaluation. We evaluated image quality and radiation exposure of a dose-conserving function-only acquisition vs retrospectively electrocardiogram(ECG)-gated coronary CTA with automatic tube current modulation. METHODS Of 26 patients who underwent clinically indicated coronary CTA for coronary and function evaluation, 13 (Group I) underwent prospectively ECG-triggered coronary CTA, followed by low-dose retrospectively ECG-gated scan for function (128-slice dual-source, 80 kVp; reference tube current, 100 mA; 8-mm-thick multiplanar reformatted reconstructions) performed either immediately (n = 6) or after 5- to 10-min delay for infarct assessment (n = 7). 13 corresponding controls (Group II) underwent retrospectively ECG-gated protocols (automatic tube potential selection with CARE kV/CARE Dose 4D; Siemens Healthcare, Forchheim, Germany) with aggressive dose modulation. Image quality assessment was performed on the six Group I subjects who underwent early post-contrast dedicated function scan and corresponding controls. Radiation exposure was based on dose-length product. RESULTS Contrast-to-noise ratio (CNR) was preserved throughout the cardiac cycle in Group I and varied according to dose modulation in Group II. Visual image quality indices were similar during end systole but were better in Group II at end diastole. Although the total radiation exposure was equivalent in Group I and Group II (284 vs 280 mGy cm), the median radiation exposure associated with only the dedicated function scan was 138 mGy cm (interquartile range, 116-203 mGy cm). CONCLUSION A low-dose retrospective ECG-gated protocol permits assessment of myocardial function at a median radiation exposure of 138 mGy cm and offers more consistent multiphase CNR vs traditional ECG-modulation protocols. This is useful for pure functional evaluation or as an adjunct to single-phase scan modes. ADVANCES IN KNOWLEDGE Radiation exposure can be limited with a tailored myocardial function CT protocol while maintaining preserved images.
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Affiliation(s)
- A Pursnani
- Cardiac MR PET CT Program, Division of Cardiology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
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Dave DM, Ferencic M, Hoffmann U, Udelson JE. Imaging techniques for the assessment of suspected acute coronary syndromes in the emergency department. Curr Probl Cardiol 2014; 39:191-247. [PMID: 24952880 DOI: 10.1016/j.cpcardiol.2014.05.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Nasis A, Meredith IT, Sud PS, Cameron JD, Troupis JM, Seneviratne SK. Long-term outcome after CT angiography in patients with possible acute coronary syndrome. Radiology 2014; 272:674-82. [PMID: 24738614 DOI: 10.1148/radiol.14132680] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE To assess the long-term outcome and hospital readmission rate associated with a computed tomographic (CT) angiography-guided strategy used to examine patients who present to the emergency department (ED) with symptoms of possible acute coronary syndrome (ACS). MATERIALS AND METHODS The study was approved by the institutional review board, and all patients provided written informed consent. A total of 585 consecutive patients (mean age, 58 years ± 11 [standard deviation]; 58% were male) with ischemic-type chest pain and low to intermediate risk for ACS were evaluated prospectively. Patients underwent coronary CT angiography after single or serial troponin I (TnI) measurement, depending on time of presentation to the ED. Subsequent care was determined with CT angiography findings: Patients without plaque and patients with nonobstructive plaque and at most mild to moderate stenosis (<40% luminal narrowing) were discharged without further investigation. Patients with moderate stenosis (40%-70% narrowing) were discharged and referred for outpatient stress echocardiography. Patients with severe stenosis (>70% narrowing) were admitted. Discharged patients were contacted and their medical records were reviewed to determine rates of death, ACS, revascularization, and hospital admission. By using binomial distribution, Clopper-Pearson confidence intervals (CIs) were calculated for outcome data. RESULTS Coronary CT angiography findings were as follows: A total of 196 patients (34%) had no coronary plaque or stenosis, 288 (49%) had nonobstructive plaque, 22 (4%) had moderate stenosis, and 79 (13%) had severe stenosis. At median 47.4-month follow-up (range, 24-57 months) of the 506 discharged patients, five (1%; 95% CI: 0.4%, 2.3%) had been readmitted for chest pain; there were no instances of coronary revascularization, ACS, or death (0% for all; 95% CI: 0%, 0.7%). Follow-up was 100% complete. CONCLUSION Use of a CT angiography-guided strategy to investigate patients with low to intermediate risk of ACS who present to the ED with chest pain is safe at long-term follow-up, including patients discharged after single TnI measurement.
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Affiliation(s)
- Arthur Nasis
- From the Monash Cardiovascular Research Centre, MonashHEART, Monash Health and Monash University Department of Medicine (MMC), 246 Clayton Rd, Clayton 3168, Australia (A.N., I.T.M., P.S.S., J.D.C., J.M.T., S.K.S.); Department of Diagnostic Imaging, Monash Health, Melbourne, Australia (J.M.T.); and Department of Medical Imaging & Radiation Sciences, Faculty of Medicine, Nursing & Radiation Sciences, Monash University, Melbourne, Australia (J.M.T.)
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Schlett CL, Truong QA, Ahmed W, Blankstein R, Ferencik M, Uthamalingam S, Bamberg F, Koenig W, Januzzi JL, Hoffmann U. High-sensitivity troponin T and C-reactive protein to identify patients without cardiac structural and functional abnormalities as assessed by cardiac CT and SPECT imaging: can biomarkers predict cardiac health? Int J Cardiovasc Imaging 2013; 29:865-73. [PMID: 23274882 PMCID: PMC7034792 DOI: 10.1007/s10554-012-0164-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Accepted: 11/27/2012] [Indexed: 01/01/2023]
Abstract
While high-sensitivity troponin-T (hsTnT) and C-reactive protein (hsCRP) are associated with structural heart disease, we thought to determine whether biomarkers can predict which heart is healthy based on multimodality imaging. Patients from the emergency department with acute chest pain suggestive of acute coronary syndrome undergoing contrast enhanced cardiac CT and stress single photon emission computed tomography (SPECT) myocardial perfusion imaging were included. HsTnT and hsCRP were assessed at time of CT. Imaging data were assessed for coronary atherosclerosis, left ventricular hypertrophy/dysfunction and myocardial perfusion abnormalities. Patients were stratified into those with or without any cardiac findings, who were considered as cardiac healthy. For biomarkers, low cut-off corresponding to good specificity and high cut-off corresponding to good sensitivity for cardiac health were derived. Among 117 patients (52 years, 55 % male), 42 (36 %) were cardiac healthy based on cardiac CT and SPECT imaging. These patients had significantly lower hsTnT and hsCRP levels as compared to those with functional or structural abnormalities (3.58 vs. 5.63 ng/L, p = 0.002; 0.82 vs. 1.93 mg/L, p = 0.0005; respectively). Patients with both low hsTnT (<3.00 ng/L) and hsCRP (<0.45 mg/L) had a probability of 85 % for being cardiac healthy. In contrast, patients with high hsTnT (>7.00 ng/L) and hsCRP (>2.00 mg/L) had 8 % probability for being cardiac healthy. Discriminative capacity of a dual-biomarker strategy was significantly improved as compared to hsTnT or hsCRP alone or to Framingham Risk score (AUC: 0.781 vs. 0.691; vs. 0.678; vs. 0.649; all p ≤ 0.02, respectively). A dual-biomarker strategy of hsTnT and hsCRP is highly discriminative for patients with normal cardiac structure and function and provides incremental value beyond the Framingham risk score.
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Affiliation(s)
- Christopher L Schlett
- Cardiac MR PET CT Program, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 165 Cambridge Street, Suite 400, Boston, MA 02114, USA.
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Triage of patients presenting with chest pain to the emergency department: implementation of coronary CT angiography in a large urban health care system. AJR Am J Roentgenol 2013; 200:57-65. [PMID: 23255742 DOI: 10.2214/ajr.12.8808] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE There is growing evidence supporting the use of coronary CT angiography (CTA) to triage patients in the emergency department (ED) with acute chest pain and low risk of acute coronary syndrome (ACS). We hypothesized that coronary CTA can guide early management and safely discharge patients by introducing a dedicated patient management protocol. SUBJECTS AND METHODS We conducted a prospective cohort study in three EDs of a large health care system (> 1300 beds). Five hundred twenty-nine patients (mean age, 52.1 years; 56% women) with chest pain, negative cardiac enzyme results, normal or nondiagnostic ECG findings, and a thrombolysis in myocardial infarction (TIMI) risk score of 2 or less were admitted and underwent CTA. A new dedicated chest pain triage protocol (levels 1-5) was implemented. On the basis of CTA findings, patients were stratified into one of the following four groups: 0, low (negative CTA findings); 1, mild (1-49% stenosis); 2, moderate (50-69% stenosis); or 3, severe (≥ 70% stenosis) risk of ACS. Outcome measures included major adverse cardiac events (MACEs) during the first 30 days after CTA, downstream testing results, and length of stay (LOS). LOS was compared before and after implementation of our chest pain triage protocol. RESULTS Three hundred seventeen patients (59.9%) with negative CTA findings and 151 (28.5%) with mild stenosis were discharged from the ED with a very low downstream testing rate and a very low MACE rate (negative predictive value = 99.8%). Twenty-five patients (4.7%) had moderate stenosis (n = 17 undergoing further testing). Thirty-six patients (6.8%) had stenosis of 70% or greater by CTA (n = 34 positive by invasive angiography or SPECT-myocardial perfusion imaging). The sensitivity of CTA was 94%. The rate of MACEs in patients with stenosis of 70% or greater (8.3%) was significantly higher (p < 0.001) than in patients with negative CTA findings (0%) or those with mild stenosis (0.2%). A 51% decrease in LOS-from 28.8 to 14.0 hours--was noted after implementation of the dedicated chest pain protocol (p < 0.001). CONCLUSION Chest pain patients with negative or mild nonobstructive CTA findings can be safely discharged from the ED without further testing. Implementation of a dedicated chest pain triage protocol is critical for the success of a coronary CTA program.
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Hoffmann U, Venkatesh V, White RD, Woodard PK, Carr JJ, Dorbala S, Earls JP, Jacobs JE, Mammen L, Martin ET, Ryan T, White CS. ACR Appropriateness Criteria(®) acute nonspecific chest pain-low probability of coronary artery disease. J Am Coll Radiol 2013; 9:745-50. [PMID: 23025871 DOI: 10.1016/j.jacr.2012.06.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Accepted: 06/28/2012] [Indexed: 11/28/2022]
Abstract
This document outlines the usefulness of available diagnostic imaging for patients without known coronary artery disease and at low probability for having coronary artery disease who do not present with classic signs, symptoms, or electrocardiographic abnormalities indicating acute coronary syndrome but rather with nonspecific chest pain leading to a differential diagnosis, including pulmonary, gastrointestinal, or musculoskeletal pathologies. A number of imaging modalities are available to evaluate the broad spectrum of possible pathologies in these patients, such as chest radiography, multidetector CT, MRI, ventilation-perfusion scans, cardiac perfusion scintigraphy, transesophageal and transthoracic echocardiography, PET, spine and rib radiography, barium esophageal and upper gastrointestinal studies, and abdominal ultrasound. It is considered appropriate to start the assessment of these patients with a low-cost, low-risk diagnostic test such as a chest x-ray. Contrast-enhanced gated cardiac and ungated thoracic multidetector CT as well as transthoracic echocardiography are also usually considered as appropriate in the evaluation of these patients as a second step if necessary. A number of rest and stress single-photon emission CT myocardial perfusion imaging, ventilation-perfusion scanning, aortic and chest MR angiographic, and more specific x-ray and abdominal examinations may be appropriate as a third layer of testing, whereas MRI of the heart or coronary arteries and invasive testing such as transesophageal echocardiography or selective coronary angiography are not considered appropriate in these patients. Given the low risk of these patients, it is mandated to minimize radiation exposure as much as possible using advanced and appropriate testing protocols. The ACR Appropriateness Criteria® are evidence-based guidelines for specific clinical conditions that are reviewed every 2 years by a multidisciplinary expert panel. The guideline development and review include an extensive analysis of current medical literature from peer-reviewed journals and the application of a well established consensus methodology (modified Delphi) to rate the appropriateness of imaging and treatment procedures by the panel. In those instances in which evidence is lacking or not definitive, expert opinion may be used to recommend imaging or treatment.
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Affiliation(s)
- Udo Hoffmann
- Massachusetts General Hospital, Boston, MA, USA.
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Truong QA, Bayley J, Hoffmann U, Bamberg F, Schlett CL, Nagurney JT, Koenig W, Januzzi JL. Multi-marker strategy of natriuretic peptide with either conventional or high-sensitivity troponin-T for acute coronary syndrome diagnosis in emergency department patients with chest pain: from the "Rule Out Myocardial Infarction using Computer Assisted Tomography" (ROMICAT) trial. Am Heart J 2012; 163:972-979.e1. [PMID: 22709749 DOI: 10.1016/j.ahj.2012.03.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2011] [Accepted: 03/12/2012] [Indexed: 11/29/2022]
Abstract
BACKGROUND Compared to troponin alone, a dual-marker strategy with natriuretic peptides may improve acute coronary syndrome (ACS) diagnosis with a single blood draw and provide physiologic information regarding underlying heart disease. We evaluate the value of adding natriuretic peptides (myocyte stress markers) to troponins (myocardial injury markers) for diagnosing ACS in emergency department patients with chest pain. METHODS In 328 patients (53 ± 12 years, 63% men) with an initially negative conventional troponin and nonischemic electrocardiogram who underwent 64-slice cardiac computed tomography (CT), we measured conventional troponin-T (cTnT), high-sensitivity troponin-T (hsTnT), N-terminal pro-B type natriuretic peptide, and mid-regional pro-atrial natriuretic peptide. ACS was defined as myocardial infarction or unstable angina. CT was evaluated for coronary plaque, stenosis, and regional wall motion abnormality. RESULTS Patients with ACS (n = 29, 9%) had higher concentrations of each biomarker compared to those without (all P < .01). Adding natriuretic peptides, especially N-terminal pro-B type natriuretic peptide, to both cTnT or hsTnT improved the C-statistics and net reclassification index for ACS, largely driven by correctly reclassifying events. Dual-negative marker results improved sensitivity (cTnT 38% to 83%-86%, hsTnT 59% to 86%-90%; all P < .01) and negative predictive value (cTnT 94% to 97%-98%, hsTnT 96% to 97%-98%) for ACS. Patients with dual-negative markers had the lowest percentage of CT coronary plaque, stenosis, and regional wall motion abnormality (all P-trend <.001). CONCLUSION Among emergency department patients with low-intermediate likelihood of ACS, combining natriuretic peptides with either conventional or highly-sensitive troponin improved discriminatory capacity and allowed for better reclassification of ACS, findings supported by structural and functional CT results.
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Affiliation(s)
- Quynh A Truong
- Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.
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The Year in Cardiac Imaging. J Am Coll Cardiol 2012; 59:1849-60. [DOI: 10.1016/j.jacc.2012.01.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 01/27/2012] [Accepted: 01/31/2012] [Indexed: 11/20/2022]
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Takx RA, Moscariello A, Schoepf UJ, Barraza JM, Nance JW, Bastarrika G, Das M, Meyer M, Wildberger JE, Schoenberg SO, Fink C, Henzler T. Quantification of left and right ventricular function and myocardial mass: Comparison of low-radiation dose 2nd generation dual-source CT and cardiac MRI. Eur J Radiol 2012; 81:e598-604. [PMID: 21831552 DOI: 10.1016/j.ejrad.2011.07.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2011] [Revised: 06/29/2011] [Accepted: 07/04/2011] [Indexed: 10/17/2022]
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Clinical indications for cardiac computed tomography. From the Working Group of the Cardiac Radiology Section of the Italian Society of Medical Radiology (SIRM). Radiol Med 2012; 117:901-38. [PMID: 22466874 DOI: 10.1007/s11547-012-0814-x] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2011] [Accepted: 09/14/2011] [Indexed: 12/13/2022]
Abstract
Cardiac computed tomography (CCT) has grown as a useful means in different clinical contexts. Technological development has progressively extended the indications for CCT while reducing the required radiation dose. Even today there is little documentation from the main international scientific societies describing the proper use and clinical indications of CCT; in particular, there are no complete guidelines. This document reflects the position of the Working Group of the Cardiac Radiology Section of the Italian Society of Radiology concerning the indications for CCT.
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Hoffmann U, Truong QA, Fleg JL, Goehler A, Gazelle S, Wiviott S, Lee H, Udelson JE, Schoenfeld D. Design of the Rule Out Myocardial Ischemia/Infarction Using Computer Assisted Tomography: a multicenter randomized comparative effectiveness trial of cardiac computed tomography versus alternative triage strategies in patients with acute chest pain in the emergency department. Am Heart J 2012; 163:330-8, 338.e1. [PMID: 22424002 DOI: 10.1016/j.ahj.2012.01.028] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Accepted: 01/27/2012] [Indexed: 11/27/2022]
Abstract
Although early cardiac computed tomographic angiography (CCTA) might improve the management of emergency department (ED) patients with acute chest pain, it could also result in increased testing, costs, and radiation exposure. ROMICAT II was a randomized comparative effectiveness trial enrolling patients 40 to 74 years old without known coronary artery disease who presented to the ED with chest pain but without ischemic electrocardiographic (ECG) changes or elevated initial troponin and who required further risk stratification. Overall, 1000 patients at 9 sites within the United States were randomized to either CCTA as the first diagnostic test following serial biomarkers or to standard of care, which included no testing or functional testing such as exercise ECG, stress radionuclide imaging, or stress echocardiography. Test results were provided to ED physicians, yet patient management was not driven by a study protocol in either arm. Data were collected on diagnostic testing, cardiac events, and cost of medical care for the index hospitalization and during the following 28 days. The primary end point was length of hospital stay. Secondary end points were cumulative radiation exposure, resource utilization, and costs of competing strategies. Tertiary end points were institutional, physician, and patient characteristics associated with primary and secondary outcomes. Rate of missed acute coronary syndrome within 28 days was the safety end point. The ROMICAT II will provide rigorous data on whether CCTA is more efficient than standard of care in the management of patients with acute chest pain at intermediate risk for acute coronary syndrome.
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Abstract
Current triage strategies are not effective in correctly identifying patients suffering from acute coronary syndrome (ACS). The diagnostic workup of patients presenting with acute chest pain continues to represent a major challenge for emergency department (ED) personnel. This statement holds especially true for patients with a low to intermediate likelihood for ACS. Taking current concepts for the diagnosis and management of patients presenting with acute chest pain to the ED into account, this article discusses the evidence and potential role of coronary computed tomography angiography to improve management of patients with possible ACS.
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Schlett CL, Banerji D, Siegel E, Bamberg F, Lehman SJ, Ferencik M, Brady TJ, Nagurney JT, Hoffmann U, Truong QA. Prognostic value of CT angiography for major adverse cardiac events in patients with acute chest pain from the emergency department: 2-year outcomes of the ROMICAT trial. JACC Cardiovasc Imaging 2011; 4:481-91. [PMID: 21565735 DOI: 10.1016/j.jcmg.2010.12.008] [Citation(s) in RCA: 127] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2010] [Revised: 12/17/2010] [Accepted: 12/20/2010] [Indexed: 01/10/2023]
Abstract
OBJECTIVES The aim of this study was to determine the 2-year prognostic value of cardiac computed tomography (CT) for predicting major adverse cardiac events (MACE) in patients presenting to the emergency department (ED) with acute chest pain. BACKGROUND CT has high potential for early triage of acute chest pain patients. However, there is a paucity of data regarding the prognostic value of CT in this ED cohort. METHODS We followed 368 patients from the ROMICAT (Rule Out Myocardial Infarction Using Computer Assisted Tomography) trial (age 53 ± 12 years; 61% male) who presented to the ED with acute chest pain, negative initial troponin, and a nonischemic electrocardiogram for 2 years. Contrast-enhanced 64-slice CT was obtained during index hospitalization, and caregivers and patients remained blinded to the results. CT was assessed for the presence of plaque, stenosis (>50% luminal narrowing), and left ventricular regional wall motion abnormalities (RWMA). The primary endpoint was MACE, defined as composite cardiac death, nonfatal myocardial infarction, or coronary revascularization. RESULTS Follow-up was completed in 333 patients (90.5%) with a median follow-up period of 23 months. At the end of the follow-up period, 25 patients (6.8%) experienced 35 MACE (no cardiac deaths, 12 myocardial infarctions, and 23 revascularizations). Cumulative probability of 2-year MACE increased across CT strata for coronary artery disease (CAD) (no CAD 0%; nonobstructive CAD 4.6%; obstructive CAD 30.3%; log-rank p < 0.0001) and across combined CT strata for CAD and RWMA (no stenosis or RWMA 0.9%; 1 feature-either RWMA [15.0%] or stenosis [10.1%], both stenosis and RWMA 62.4%; log-rank p < 0.0001). The c statistic for predicting MACE was 0.61 for clinical Thrombolysis In Myocardial Infarction risk score and improved to 0.84 by adding CT CAD data and improved further to 0.91 by adding RWMA (both p < 0.0001). CONCLUSIONS CT coronary and functional features predict MACE and have incremental prognostic value beyond clinical risk score in ED patients with acute chest pain. The absence of CAD on CT provides a 2-year MACE-free warranty period, whereas coronary stenosis with RWMA is associated with the highest risk of MACE.
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Affiliation(s)
- Christopher L Schlett
- Cardiac MR PET CT Program, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Nasis A, Meredith IT, Nerlekar N, Cameron JD, Antonis PR, Mottram PM, Leung MC, Troupis JM, Crossett M, Kambourakis AG, Braitberg G, Hoffmann U, Seneviratne SK. Acute chest pain investigation: utility of cardiac CT angiography in guiding troponin measurement. Radiology 2011; 260:381-9. [PMID: 21673228 DOI: 10.1148/radiol.11110013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
PURPOSE To assess the impact on length of stay and rate of major adverse cardiovascular events of a cardiac computed tomographic (CT) angiography-guided algorithm to examine patients who present to the emergency department (ED) with low- to intermediate-risk chest pain. MATERIALS AND METHODS The study was approved by the institutional review board, and all patients gave written informed consent. Two hundred three consecutive patients (mean age, 55 years ± 11 [standard deviation]; 123 men) with low- to intermediate-risk ischemic-type chest pain were prospectively enrolled. Patients underwent initial cardiac CT angiography with subsequent treatment determined by reference to findings at cardiac CT angiography; patients without overt plaque were immediately discharged from the hospital, patients with nonobstructive plaque and mild-to-moderate stenoses were discharged after a negative 6-hour troponin level, and patients with severe stenoses were admitted to the hospital. Discharged patients were followed up for a mean of 14.2 months. Additionally, length of stay and safety outcomes among these patients were compared with those in 102 consecutive patients with low- to intermediate-risk chest pain who presented to the ED and underwent a standard of care (SOC) work-up without cardiac CT angiography. One-way analysis of variance with Bonferroni correction was used to compare length of stay between groups. RESULTS Cardiac CT angiography findings in the 203 patients who underwent cardiac CT angiography were as follows: Sixty-five (32%) patients had no plaque, 107 (53%) had nonobstructive plaque, and 31 (15%) had severe stenoses. At follow-up, there were no deaths or cases of acute coronary syndrome (cardiac CT angiography, 0%, 95% confidence interval [CI]: 0%, 1.85%; SOC, 0%, 95% CI: 0%, 3.63%), and the rate of readmission to the hospital because of chest pain was higher with the SOC approach (9% vs 1%, P = .01). Mean ED length of stay was lower with cardiac CT angiography (6.62 hours ± 0.38 after a single troponin level and 9.15 hours ± 0.30 after serial troponin levels) than with the SOC approach (11.62 hours ± 0.47, P < .001). CONCLUSION Tailoring troponin measurement to cardiac CT angiography findings is safe and allows early discharge of patients with low- to intermediate-risk chest pain, resulting in reduced length of stay.
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Affiliation(s)
- Arthur Nasis
- Monash Cardiovascular Research Centre, MonashHEART, 246 Clayton Road, Clayton, VIC 3168, Australia
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Giugliano RP, Braunwald E. The year in non-ST-segment elevation acute coronary syndrome. J Am Coll Cardiol 2011; 56:2126-38. [PMID: 21144974 DOI: 10.1016/j.jacc.2010.09.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2010] [Revised: 08/30/2010] [Accepted: 09/02/2010] [Indexed: 12/30/2022]
Affiliation(s)
- Robert P Giugliano
- TIMI Study Group, Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
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Cury RC, Feuchtner G, Mascioli C, Fialkow J, Andrulonis P, Villanueva T, Pena CS, Janowitz WR, Katzen BT, Ziffer JA. Cardiac CT in the emergency department: convincing evidence, but cautious implementation. J Nucl Cardiol 2011; 18:331-41. [PMID: 21359497 DOI: 10.1007/s12350-011-9356-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
In clinical practice, assessment of chest pain patients presenting to the emergency department is difficult and the work-up can be lengthy and costly. There is growing evidence supporting the use of coronary computed tomography angiography (CTA) in early assessment of patients presenting with acute chest pain to the emergency department. CTA appears to be a faster and more accurate way to diagnosis or rule out coronary stenosis, leading to reduced hospital admissions, decreased time in the ED and lower costs. The focus of this article is to review the current literature of the use of Coronary CTA and "triple rule out" protocols in the emergency department setting and to provide a chest pain algorithm, showing how Coronary CTA can be implemented effectively in clinical practice. Potential pitfalls and requirements for implementation will also be discussed.
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Affiliation(s)
- Ricardo C Cury
- Baptist Hospital of Miami and Baptist Cardiac and Vascular Institute, 8900 North Kendall Drive, Miami, FL, USA.
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Rogers IS, Banerji D, Siegel EL, Truong QA, Ghoshhajra BB, Irlbeck T, Abbara S, Gupta R, Benenstein RJ, Choy G, Avery LL, Novelline RA, Bamberg F, Brady TJ, Nagurney JT, Hoffmann U. Usefulness of comprehensive cardiothoracic computed tomography in the evaluation of acute undifferentiated chest discomfort in the emergency department (CAPTURE). Am J Cardiol 2011; 107:643-50. [PMID: 21247533 DOI: 10.1016/j.amjcard.2010.10.039] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Revised: 10/26/2010] [Accepted: 10/26/2010] [Indexed: 10/18/2022]
Abstract
Newer cardiac computed tomographic (CT) technology has permitted comprehensive cardiothoracic evaluations for coronary artery disease, pulmonary embolism, and aortic dissection within a single breath hold, independent of the heart rate. We conducted a randomized diagnostic trial to compare the efficiency of a comprehensive cardiothoracic CT examination in the evaluation of patients presenting to the emergency department with undifferentiated acute chest discomfort or dyspnea. We randomized the emergency department patients clinically scheduled to undergo a dedicated CT protocol to assess coronary artery disease, pulmonary embolism, or aortic dissection to either the planned dedicated CT protocol or a comprehensive cardiothoracic CT protocol. All CT examinations were performed using a 64-slice dual source CT scanner. The CT results were immediately communicated to the emergency department providers, who directed further management at their discretion. The subjects were then followed for the remainder of their hospitalization and for 30 days after hospitalization. Overall, 59 patients (mean age 51.2 ± 11.4 years, 72.9% men) were randomized to either dedicated (n = 30) or comprehensive (n = 29) CT scanning. No significant difference was found in the median length of stay (7.6 vs 8.2 hours, p = 0.79), rate of hospital discharge without additional imaging (70% vs 69%, p = 0.99), median interval to exclusion of an acute event (5.2 vs 6.5 hours, p = 0.64), costs of care (p = 0.16), or the number of revisits (p = 0.13) between the dedicated and comprehensive arms, respectively. In addition, radiation exposure (11.3 mSv vs 12.8 mSv, p = 0.16) and the frequency of incidental findings requiring follow-up (24.1% vs 33.3%, p = 0.57) were similar between the 2 arms. Comprehensive cardiothoracic CT scanning was feasible, with a similar diagnostic yield to dedicated protocols. However, it did not reduce the length of stay, rate of subsequent testing, or costs. In conclusion, although this "triple rule out" protocol might be helpful in the evaluation of select patients, these findings suggest that it should not be used routinely with the expectation that it will improve efficiency or reduce resource use.
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Wilson SR, Min JK. The potential role for the use of cardiac computed tomography angiography for the acute chest pain patient in the emergency department. J Nucl Cardiol 2011; 18:168-76. [PMID: 21190100 DOI: 10.1007/s12350-010-9328-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Sean R Wilson
- The Greenberg Division of Cardiology, Department of Medicine, Weill Medical College of Cornell University, New York Presbyterian Hospital, New York, NY, USA
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50
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Blankstein R, Ferencik M. The vulnerable plaque: Can it be detected with Cardiac CT? Atherosclerosis 2010; 211:386-9. [PMID: 20619414 DOI: 10.1016/j.atherosclerosis.2010.06.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2010] [Accepted: 06/08/2010] [Indexed: 12/14/2022]
Affiliation(s)
- Ron Blankstein
- Non-invasive Cardiovascular Imaging Program, Departments of Medicine (Cardiovascular Division) and Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA.
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