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Crean AM, Small GS, Chow BJW, Ruddy TD, Beanlands RSB, deKemp RA. High-resolution PET demonstrates extensive ischemia/fibrosis mismatch in a patient with hypertrophic cardiomyopathy: the power of multimodality image fusion. J Nucl Cardiol 2023; 30:1709-1712. [PMID: 35672566 DOI: 10.1007/s12350-022-02993-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 04/12/2022] [Indexed: 11/28/2022]
Affiliation(s)
- A M Crean
- Department of Medicine (Cardiology), University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON, K1Y 4W7, Canada
| | - G S Small
- Department of Medicine (Cardiology), University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON, K1Y 4W7, Canada
| | - B J W Chow
- Department of Medicine (Cardiology), University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON, K1Y 4W7, Canada
| | - T D Ruddy
- Department of Medicine (Cardiology), University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON, K1Y 4W7, Canada
| | - R S B Beanlands
- Department of Medicine (Cardiology), University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON, K1Y 4W7, Canada
| | - R A deKemp
- Department of Medicine (Cardiology), University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON, K1Y 4W7, Canada.
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Chih S, Ross HJ, Alba AC, Fan CS, Manlhiot C, Crean AM. Perfusion Cardiac Magnetic Resonance Imaging as a Rule-Out Test for Cardiac Allograft Vasculopathy. Am J Transplant 2016; 16:3007-3015. [PMID: 27140676 DOI: 10.1111/ajt.13839] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 03/22/2016] [Accepted: 04/16/2016] [Indexed: 01/25/2023]
Abstract
Cardiac allograft vasculopathy (CAV) is a leading cause of mortality after heart transplantation. Noninvasive imaging techniques used in CAV evaluation have important limitations. In a cross-sectional study, we investigated perfusion cardiac magnetic resonance (CMR) imaging to determine an optimal myocardial perfusion reserve index (MPR) cutoff for detecting CAV using receiver operating characteristic curve analysis. We evaluated CMR performance using sensitivity, specificity and likelihood ratio analysis. We included 29 patients (mean 5 ± 4 years after transplant) scheduled for coronary angiography with intravascular ultrasound (IVUS) who completed CMR. CAV was defined as maximal intimal thickness (MIT) >0.5 mm by IVUS of the left anterior descending artery. CAV was evident in 19 patients (70%) on IVUS (mean MIT 0.82 ± 0.42 mm). MPR was significantly lower in patients with MIT ≥0.50 mm (1.35 ± 0.23 vs. 1.71 ± 0.45, p = 0.013). There was moderate inverse correlation between MPR and MIT (r = -0.36, p = 0.075). The optimal MPR cutoff ≤1.68 for predicting CAV showed sensitivity of 100%, specificity of 63%, a negative predictive value of 100%, a positive predictive value of 86% and a positive likelihood ratio of 2.7. An MPR ≤1.68 has high negative predictive value, suggesting its potential as a test to rule out CAV.
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Affiliation(s)
- S Chih
- Heart Failure-Transplantation, Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Canada
| | - H J Ross
- Division of Cardiology, Toronto General Hospital-University Health Network, Toronto, Canada
| | - A C Alba
- Division of Cardiology, Toronto General Hospital-University Health Network, Toronto, Canada
| | - C S Fan
- Cardiovascular Data Management Centre, The Hospital for Sick Children, University of Toronto, Toronto, Canada
| | - C Manlhiot
- Cardiovascular Data Management Centre, The Hospital for Sick Children, University of Toronto, Toronto, Canada
| | - A M Crean
- Division of Cardiology, Toronto General Hospital-University Health Network, Toronto, Canada
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McAuliffe MAP, O’Mahony GE, Blackshields CA, Collins JA, Egan DP, Kiernan L, O’Neill E, Lenihan S, Walker GM, Crean AM. The Use of PAT and Off-line Methods for Monitoring of Roller Compacted Ribbon and Granule Properties with a View to Continuous Processing. Org Process Res Dev 2014. [DOI: 10.1021/op5000013] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M. A. P. McAuliffe
- Centre
for Advanced Photonics and Process Analysis, Applied Physics and Instrumentation
Department, Cork Institute of Technology, Cork, Ireland
| | - G. E. O’Mahony
- School
of Pharmacy, University College Cork, Cork, Ireland
| | - C. A. Blackshields
- Department
of Process, Energy and Transport Engineering, Cork Institute of Technology, Cork, Ireland
| | - J. A. Collins
- Materials
Surface Science Institute, Department of Chemical and Environmental
Sciences, University of Limerick, Limerick, Ireland
| | - D. P. Egan
- Enterprise
Research Centre, University of Limerick, Limerick, Ireland
| | - L. Kiernan
- Innopharma Laboratories, 311 Q House,
76 Furze Road, Sandyford Industrial Estate, Dublin, 18 Ireland
| | - E. O’Neill
- Centre
for Advanced Photonics and Process Analysis, Applied Physics and Instrumentation
Department, Cork Institute of Technology, Cork, Ireland
| | - S. Lenihan
- Department
of Process, Energy and Transport Engineering, Cork Institute of Technology, Cork, Ireland
| | - G. M. Walker
- Materials
Surface Science Institute, Department of Chemical and Environmental
Sciences, University of Limerick, Limerick, Ireland
- School
of Chemistry and Chemical Engineering, Queens University Belfast, Belfast BT9 5AG, Northern Ireland, United Kingdom
| | - A. M. Crean
- School
of Pharmacy, University College Cork, Cork, Ireland
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Lai EJ, Carasso S, Rakowski H, Misurka J, Durand M, Gruner C, Woo A, Crean AM, Williams L. A CMR study of left atrial mechanics in hypertrophic cardiomyopathy: left atrial function predicts paroxysmal atrial fibrillation. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p3007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Durand M, Nguyen ET, Crean AM. Anomalous left coronary artery arising from the pulmonary artery. Cardiovasc J Afr 2012; 23:e9-e10. [PMID: 23044529 DOI: 10.5830/cvja-2012-031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2011] [Accepted: 03/19/2012] [Indexed: 11/06/2022] Open
Abstract
A 24-year-old female presented to her general practitioner with shortness of breath. She was referred for an echocardiogram, which demonstrated features suggestive of a right coronary artery fistula, and referred to our institute. We performed a contrast-enhanced, prospectively triggered cardiac CT angiogram, which demonstrated the primary and secondary features of anomalous left coronary artery arising from the pulmonary artery (ALCAPA), also known as the Bland-White-Garland syndrome, a rare congenital abnormality of the origin of the left main coronary artery.
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Affiliation(s)
- M Durand
- Department of Medical Imaging, University Health Network, University of Toronto, Canada.
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Dhanoa D, Jiménez-Juan L, Ross JR, Crean AM. [Diagnosis of atresia of the main left coronary artery using 320-detector volumetric cardiac computed tomography [corrected]]. Radiologia 2011; 54:85-7. [PMID: 21665234 DOI: 10.1016/j.rx.2010.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2010] [Revised: 09/28/2010] [Accepted: 09/28/2010] [Indexed: 10/18/2022]
Abstract
The congenital absence of the left coronary trunk is one of the rarest anomalies of the coronary artery. We present a case in which this anomaly was suspected at cardiac catheterization and confirmed at volumetric cardiac computed tomography (CT) with a single heart beat.
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Affiliation(s)
- D Dhanoa
- Departamento de Radiología, Peter Munk Cardiac Center, Toronto General Hospital, Toronto, Ontario, Canadá
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Kuang SS, Oliveira JC, Crean AM. Microencapsulation as a Tool for Incorporating Bioactive Ingredients into Food. Crit Rev Food Sci Nutr 2010; 50:951-68. [DOI: 10.1080/10408390903044222] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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O'Sullivan C, O'Hare P, O'Leary ND, Crean AM, Ryan K, Dobson ADW, O'Neill L. Deposition of substituted apatites with anticolonizing properties onto titanium surfaces using a novel blasting process. J Biomed Mater Res B Appl Biomater 2010; 95:141-9. [DOI: 10.1002/jbm.b.31694] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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