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Shrestha UM, Chae HD, Fang Q, Lee RJ, Packiasamy J, Huynh L, Blecha J, Huynh TL, VanBrocklin HF, Levi J, Seo Y. A Feasibility Study of [ 18F]F-AraG Positron Emission Tomography (PET) for Cardiac Imaging-Myocardial Viability in Ischemia-Reperfusion Injury Model. Mol Imaging Biol 2024:10.1007/s11307-024-01932-y. [PMID: 39060882 DOI: 10.1007/s11307-024-01932-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 06/05/2024] [Accepted: 07/01/2024] [Indexed: 07/28/2024]
Abstract
PURPOSE Myocardial infarction (MI) with subsequent inflammation is one of the most common heart conditions leading to progressive tissue damage. A reliable imaging marker to assess tissue viability after MI would help determine the risks and benefits of any intervention. In this study, we investigate whether a new mitochondria-targeted imaging agent, 18F-labeled 2'-deoxy-2'-18F-fluoro-9-β-d-arabinofuranosylguanine ([18F]F-AraG), a positron emission tomography (PET) agent developed for imaging activated T cells, is suitable for cardiac imaging and to test the myocardial viability after MI. PROCEDURE To test whether the myocardial [18F]-F-AraG signal is coming from cardiomyocytes or immune infiltrates, we compared cardiac signal in wild-type (WT) mice with that of T cell deficient Rag1 knockout (Rag1 KO) mice. We assessed the effect of dietary nucleotides on myocardial [18F]F-AraG uptake in normal heart by comparing [18F]F-AraG signals between mice fed with purified diet and those fed with purified diet supplemented with nucleotides. The myocardial viability was investigated in rodent model by imaging rat with [18F]F-AraG and 2-deoxy-2[18F]fluoro-D-glucose ([18F]FDG) before and after MI. All PET signals were quantified in terms of the percent injected dose per cc (%ID/cc). We also explored [18F]FDG signal variability and potential T cell infiltration into fibrotic area in the affected myocardium with H&E analysis. RESULTS The difference in %ID/cc for Rag1 KO and WT mice was not significant (p = ns) indicating that the [18F]F-AraG signal in the myocardium was primarily coming from cardiomyocytes. No difference in myocardial uptake was observed between [18F]F-AraG signals in mice fed with purified diet and with purified diet supplemented with nucleotides (p = ns). The [18F]FDG signals showed wider variability at different time points. Noticeable [18F]F-AraG signals were observed in the affected MI regions. There were T cells in the fibrotic area in the H&E analysis, but they did not constitute the predominant infiltrates. CONCLUSIONS Our preliminary preclinical data show that [18F]F-AraG accumulates in cardiomyocytes indicating that it may be suitable for cardiac imaging and to evaluate the myocardial viability after MI.
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Affiliation(s)
- Uttam M Shrestha
- Department of Radiology and Biomedical Imaging, UCSF Physics Research Laboratory, University of California, 185 Berry Street, STE 350, San Francisco, CA, 94143, USA.
| | - Hee-Don Chae
- CellSight Technologies, Inc., 185 Berry Street, STE 350, San Francisco, CA, 94107, USA
| | - Qizhi Fang
- Department of Medicine, Cardiovascular Research Institute, University of California, San Francisco, CA, USA
| | - Randall J Lee
- Department of Medicine, Cardiovascular Research Institute, University of California, San Francisco, CA, USA
| | - Juliet Packiasamy
- CellSight Technologies, Inc., 185 Berry Street, STE 350, San Francisco, CA, 94107, USA
| | - Lyna Huynh
- CellSight Technologies, Inc., 185 Berry Street, STE 350, San Francisco, CA, 94107, USA
| | - Joseph Blecha
- Department of Radiology and Biomedical Imaging, UCSF Physics Research Laboratory, University of California, 185 Berry Street, STE 350, San Francisco, CA, 94143, USA
| | - Tony L Huynh
- Department of Radiology and Biomedical Imaging, UCSF Physics Research Laboratory, University of California, 185 Berry Street, STE 350, San Francisco, CA, 94143, USA
| | - Henry F VanBrocklin
- Department of Radiology and Biomedical Imaging, UCSF Physics Research Laboratory, University of California, 185 Berry Street, STE 350, San Francisco, CA, 94143, USA
| | - Jelena Levi
- CellSight Technologies, Inc., 185 Berry Street, STE 350, San Francisco, CA, 94107, USA.
| | - Youngho Seo
- Department of Radiology and Biomedical Imaging, UCSF Physics Research Laboratory, University of California, 185 Berry Street, STE 350, San Francisco, CA, 94143, USA
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Elwazir MY, Bird JG, AbouEzzeddine OF, Chareonthaitawee P, Blauwet LA, Collins JD, Gibbons RJ, Rodriguez-Porcel M, Kamal HM, Abdellah AT, Bois JP. Performance of cardiac PET/CT with and without phase analysis for detection of scar in cardiac sarcoidosis: Comparison to cardiac magnetic resonance imaging. J Nucl Cardiol 2022; 29:1389-1401. [PMID: 33474694 DOI: 10.1007/s12350-020-02473-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 11/16/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND The presence of myocardial scar in CS patients results in poor prognosis and worse outcomes. 18F-fluorodeoxyglucose (18F-FDG) PET/CT excels at visualizing inflammation but is suboptimal at detecting scar. We evaluated PET/CT sensitivity to detect scar and investigated the incremental diagnostic value of automated PET-derived data. METHODS 176 patients who underwent cardiac magnetic resonance (CMR) and N-13 ammonia/18F-FDG cardiac PET/CT for suspected CS within 3 months were enrolled. Scar was defined as late gadolinium enhancement (LGE) on CMR without concordant 18F-FDG uptake on 18F-FDG PET/CT. Accuracy of cardiac PET/CT at detecting scar (perfusion defect without concordant 18F-FDG uptake) was assessed before and after addition of automated PET-derived data. RESULTS Sensitivity of PET/CT for scar detection was 45.3% (specificity 88.9%). Addition of PET-derived LV volumes and function in a logistic regression model improved sensitivity to 57.0% (specificity: 80.0%, AUC 0.72). Addition of phase analysis maximum segmental onset of myocardial contraction > 61 improved AUC to 0.75, correctly relabeling 16.3% of patients as scar (net reclassification index 8.2%). CONCLUSION Sensitivity of gated PET MPI alone for scar detection in CS is suboptimal. Adding PET-derived volumes/function and phase analysis data results in improved detection and characterization of scar.
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Affiliation(s)
- Mohamed Y Elwazir
- Department of Cardiovascular Diseases, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
- Department of Cardiology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Jared G Bird
- Department of Cardiovascular Diseases, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Omar F AbouEzzeddine
- Department of Cardiovascular Diseases, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | | | - Lori A Blauwet
- Department of Cardiovascular Diseases, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | | | - Raymond J Gibbons
- Department of Cardiovascular Diseases, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Martin Rodriguez-Porcel
- Department of Cardiovascular Diseases, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Hanan M Kamal
- Department of Cardiology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Ahmed T Abdellah
- Department of Cardiology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - John P Bois
- Department of Cardiovascular Diseases, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.
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Baggiano A, Italiano G, Guglielmo M, Fusini L, Guaricci AI, Maragna R, Giacari CM, Mushtaq S, Conte E, Annoni AD, Formenti A, Mancini ME, Andreini D, Rabbat M, Pepi M, Pontone G. Changing Paradigms in the Diagnosis of Ischemic Heart Disease by Multimodality Imaging. J Clin Med 2022; 11:jcm11030477. [PMID: 35159929 PMCID: PMC8836710 DOI: 10.3390/jcm11030477] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 11/24/2021] [Accepted: 01/13/2022] [Indexed: 02/01/2023] Open
Abstract
Coronary artery disease (CAD) represents the most common cardiovascular disease, with high morbidity and mortality. Historically patients with chest pain of suspected coronary origin have been assessed with functional tests, capable to detect haemodynamic consequences of coronary obstructions through depiction of electrocardiographic changes, myocardial perfusion defects or regional wall motion abnormalities under stress condition. Stress echocardiography (SE), single-photon emission computed tomography (SPECT), positron emission tomography (PET) and cardiovascular magnetic resonance (CMR) represent the functional techniques currently available, and technical developments contributed to increased diagnostic performance of these techniques. More recently, cardiac computed tomography angiography (cCTA) has been developed as a non-invasive anatomical test for a direct visualisation of coronary vessels and detailed description of atherosclerotic burden. Cardiovascular imaging techniques have dramatically enhanced our knowledge regarding physiological aspects and myocardial implications of CAD. Recently, after the publication of important trials, international guidelines recognised these changes, updating indications and level of recommendations. This review aims to summarise current standards with main novelties and specific limitations, and a diagnostic algorithm for up-to-date clinical management is also proposed.
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Affiliation(s)
- Andrea Baggiano
- Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy; (A.B.); (G.I.); (M.G.); (L.F.); (R.M.); (C.M.G.); (S.M.); (E.C.); (A.D.A.); (A.F.); (M.E.M.); (D.A.); (M.P.)
- Cardiovascular Section, Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy
| | - Gianpiero Italiano
- Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy; (A.B.); (G.I.); (M.G.); (L.F.); (R.M.); (C.M.G.); (S.M.); (E.C.); (A.D.A.); (A.F.); (M.E.M.); (D.A.); (M.P.)
| | - Marco Guglielmo
- Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy; (A.B.); (G.I.); (M.G.); (L.F.); (R.M.); (C.M.G.); (S.M.); (E.C.); (A.D.A.); (A.F.); (M.E.M.); (D.A.); (M.P.)
| | - Laura Fusini
- Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy; (A.B.); (G.I.); (M.G.); (L.F.); (R.M.); (C.M.G.); (S.M.); (E.C.); (A.D.A.); (A.F.); (M.E.M.); (D.A.); (M.P.)
| | - Andrea Igoren Guaricci
- Department of Emergency and Organ Transplantation, Institute of Cardiovascular Disease, University Hospital Policlinico of Bari, 70124 Bari, Italy;
| | - Riccardo Maragna
- Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy; (A.B.); (G.I.); (M.G.); (L.F.); (R.M.); (C.M.G.); (S.M.); (E.C.); (A.D.A.); (A.F.); (M.E.M.); (D.A.); (M.P.)
| | - Carlo Maria Giacari
- Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy; (A.B.); (G.I.); (M.G.); (L.F.); (R.M.); (C.M.G.); (S.M.); (E.C.); (A.D.A.); (A.F.); (M.E.M.); (D.A.); (M.P.)
| | - Saima Mushtaq
- Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy; (A.B.); (G.I.); (M.G.); (L.F.); (R.M.); (C.M.G.); (S.M.); (E.C.); (A.D.A.); (A.F.); (M.E.M.); (D.A.); (M.P.)
| | - Edoardo Conte
- Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy; (A.B.); (G.I.); (M.G.); (L.F.); (R.M.); (C.M.G.); (S.M.); (E.C.); (A.D.A.); (A.F.); (M.E.M.); (D.A.); (M.P.)
- Department of Biomedical Sciences for Health, University of Milan, 20133 Milan, Italy
| | - Andrea Daniele Annoni
- Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy; (A.B.); (G.I.); (M.G.); (L.F.); (R.M.); (C.M.G.); (S.M.); (E.C.); (A.D.A.); (A.F.); (M.E.M.); (D.A.); (M.P.)
| | - Alberto Formenti
- Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy; (A.B.); (G.I.); (M.G.); (L.F.); (R.M.); (C.M.G.); (S.M.); (E.C.); (A.D.A.); (A.F.); (M.E.M.); (D.A.); (M.P.)
| | - Maria Elisabetta Mancini
- Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy; (A.B.); (G.I.); (M.G.); (L.F.); (R.M.); (C.M.G.); (S.M.); (E.C.); (A.D.A.); (A.F.); (M.E.M.); (D.A.); (M.P.)
| | - Daniele Andreini
- Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy; (A.B.); (G.I.); (M.G.); (L.F.); (R.M.); (C.M.G.); (S.M.); (E.C.); (A.D.A.); (A.F.); (M.E.M.); (D.A.); (M.P.)
- Cardiovascular Section, Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy
| | - Mark Rabbat
- Division of Cardiology, Department of Medicine and Radiology, Loyola University of Chicago, Chicago, IL 60660, USA;
- Division of Cardiology, Department of Medicine, Edward Hines Jr. VA Hospital, Hines, IL 60141, USA
| | - Mauro Pepi
- Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy; (A.B.); (G.I.); (M.G.); (L.F.); (R.M.); (C.M.G.); (S.M.); (E.C.); (A.D.A.); (A.F.); (M.E.M.); (D.A.); (M.P.)
| | - Gianluca Pontone
- Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy; (A.B.); (G.I.); (M.G.); (L.F.); (R.M.); (C.M.G.); (S.M.); (E.C.); (A.D.A.); (A.F.); (M.E.M.); (D.A.); (M.P.)
- Correspondence: ; Tel.: +39-02-5800-2574; Fax: +39-02-5800-2231
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Cardiac hybrid imaging: novel tracers for novel targets. JOURNAL OF GERIATRIC CARDIOLOGY : JGC 2021; 18:748-758. [PMID: 34659381 PMCID: PMC8501382 DOI: 10.11909/j.issn.1671-5411.2021.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Non-invasive cardiac imaging has explored enormous advances in the last few decades. In particular, hybrid imaging represents the fusion of information from multiple imaging modalities, allowing to provide a more comprehensive dataset compared to traditional imaging techniques in patients with cardiovascular diseases. The complementary anatomical, functional and molecular information provided by hybrid systems are able to simplify the evaluation procedure of various pathologies in a routine clinical setting. The diagnostic capability of hybrid imaging modalities can be further enhanced by introducing novel and specific imaging biomarkers. The aim of this review is to cover the most recent advancements in radiotracers development for SPECT/CT, PET/CT, and PET/MRI for cardiovascular diseases.
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Effect of nicorandil administration on myocardial microcirculation during primary percutaneous coronary intervention in patients with acute myocardial infarction. ADVANCES IN INTERVENTIONAL CARDIOLOGY 2018; 14:26-31. [PMID: 29743901 PMCID: PMC5939542 DOI: 10.5114/aic.2018.74352] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 01/30/2018] [Indexed: 12/22/2022] Open
Abstract
Introduction Prevention of the no-reflow phenomenon has a crucial role in primary percutaneous coronary intervention (P-PCI) procedures. Aim To assess the effects of early intracoronary administration of nicorandil (NIC) during P-PCI on myocardial microcirculation in patients with acute myocardial infarction (AMI). Material and methods A total of 120 patients with first acute anterior wall ST segment elevation myocardial infarction who underwent P-PCI were randomly divided into two groups: the NIC group (A, n = 60) and the placebo group (B, n = 60). Before stent placement, NIC or normal saline was injected using a guiding catheter. The thrombolysis in myocardial infarction (TIMI) grade, TIMI myocardial perfusion grade (TMPG), resolution of ST segment elevation (defined as > 50% decrease in ST elevation) 1 h after surgery, and 99Tcm-methoxyisobutyl isocyanide (MIBI) rest myocardial perfusion imaging (MPI) via single-photon emission computed tomography (99Tcm-MIBI SPECT) findings 10 days after surgery were compared between the two groups. Results The number of patients who achieved TIMI grade 3 (96.67% vs. 86.67%; p = 0.047) and TMPG 3 (95% vs. 83.33%; p = 0.040) was higher in the NIC group than in the placebo group. Resolution of ST segment elevation occurred in 95% and 81.67% of the patients in the NIC and placebo groups, respectively (p = 0.023); the MPI score of the two groups was 4.1 ±1.89 and 7.3 ±2.65, respectively (p = 0.014). Conclusions Early coronary administration of NIC can significantly reduce the damage in the myocardial microcirculation caused by P-PCI and the myocardial infarct size in patients with AMI.
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Intramyocardial Adipose-Derived Stem Cell Transplantation Increases Pericardial Fat with Recovery of Myocardial Function after Acute Myocardial Infarction. PLoS One 2016; 11:e0158067. [PMID: 27336402 PMCID: PMC4919032 DOI: 10.1371/journal.pone.0158067] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 06/09/2016] [Indexed: 12/22/2022] Open
Abstract
Intramyocardial injection of adipose-derived stem cells (ASC) with other cell types in acute myocardial infarction (AMI) animal models has consistently shown promising clinical regenerative capacities. We investigated the effects of intramyocardial injections of mouse ASC (mASC) with mouse endothelial cells (mEC) on left ventricular function and generation of pericardial fat in AMI rats. AMI rat models were created by ligating left anterior descending coronary artery and were randomly assigned into four groups: control (n = 10), mASC (n = 10), mEC (n = 10) and mASC+mEC (n = 10) via direct intramyocardial injections, and each rat received 1x106 cells around three peri-infarct areas. Echocardiography and cardiac positron emission tomography (PET) were compared at baseline and on 28 days after AMI. Changes in left ventricular ejection fraction measured by PET, increased significantly in mASC and mASC+mEC groups compared to mEC and control groups. Furthermore, significant decreases in fibrosis were confirmed after sacrifice on 28 days in mASC and mASC+mEC groups. Successful cell engraftment was confirmed by positive Y-Chromosome staining in the transplantation region. Pericardial fat increased significantly in mASC and mASC+mEC groups compared to control group, and pericardial fat was shown to originate from the AMI rat. mASC group expressed higher adiponectin and lower leptin levels in plasma than control group. In addition, pericardial fat from AMI rats demonstrated increased phospho-AMPK levels and reduced phospho-ACC levels. Intramyocardial mASC transplantation after AMI in rats increased pericardial fat, which might play a protective role in the recovery of myocardial function after ischemic myocardial damage.
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Early prediction of myocardial viability after acute myocardial infarction by two-dimensional speckle tracking imaging. JOURNAL OF GERIATRIC CARDIOLOGY : JGC 2015; 12:474-81. [PMID: 26512237 PMCID: PMC4605941 DOI: 10.11909/j.issn.1671-5411.2015.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Background Identifying the transmural extent of myocardial necrosis and the degree of myocardial viability in acute myocardial infarction (AMI) is important clinically. The aim of this study was to assess myocardial viability using two-dimensional speckle tracking imaging (2D-STI) in patients with AMI. Methods 2D-STI was performed at initial presentation, three days, and six months after primary percutaneous coronary intervention (PCI) in 30 patients with AMI, who had a left anterior descending coronary artery (LAD) culprit lesion. In addition, 20 patients who had minimal stenotic lesions (< 30% stenosis) on coronary angiography were also included in the control group. At six months dobutamine echocardiography was performed for viability assessment in seven segments of the LAD territory. According to the recovery of wall motion abnormality, segments were classified as viable or non-viable. Results A total of 131 segments were viable, and 44 were nonviable. Multivariate analysis revealed significant differences between the viable and nonviable segments in the peak systolic strain, the peak systolic strain rate at initial presentation, and peak systolic strain rate three days after primary PCI. Among these, the initial peak systolic strain rate had the highest predictive value for myocardial viability (hazard ratio: 31.22, P < 0.01). Conclusions 2D-STI is feasible for assessing myocardial viability, and the peak systolic strain rate might be the most reliable predictor of myocardial viability in patients with AMI.
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Sun Z. Evidence for myocardial CT perfusion imaging in the diagnosis of hemodynamically significant coronary artery disease. Cardiovasc Diagn Ther 2015; 5:58-62. [PMID: 25774349 DOI: 10.3978/j.issn.2223-3652.2015.01.03] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 12/18/2014] [Indexed: 01/17/2023]
Abstract
This editorial discusses a recent paper published in the August issue of Radiology about the diagnostic value of myocardial computer tomography (CT) perfusion imaging in the detection of hemodynamically significant coronary stenosis when compared to single-photon emission CT (SPECT) imaging based on a secondary analysis of CORE320 study. Three aspects including high diagnostic sensitivity of CT perfusion imaging, moderate specificity of SPECT imaging and lack of use of attenuation correction in SPECT imaging have been discussed with reference to the current literature, and some suggestions have been highlighted for future studies to improve the diagnostic performance of CT perfusion and SPECT imaging in the diagnostic evaluation of coronary artery disease.
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Affiliation(s)
- Zhonghua Sun
- Discipline of Medical Imaging, Department of Imaging and Applied Physics, Curtin University, Perth, Western Australia 6845, Australia
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Sun Z. Quantitative cardiovascular imaging. Quant Imaging Med Surg 2014; 4:297-9. [PMID: 25392816 DOI: 10.3978/j.issn.2223-4292.2014.10.08] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 10/07/2014] [Indexed: 12/16/2022]
Affiliation(s)
- Zhonghua Sun
- Discipline of Medical Imaging, Department of Imaging and Applied Physics, Curtin University, Perth, Western Australia 6102, Australia
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