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Nakata K, Kucukseymen S, Cai X, Yankama T, Rodriguez J, Sai E, Pierce P, Ngo L, Nakamori S, Tung N, Manning WJ, Nezafat R. Cardiovascular magnetic resonance characterization of myocardial tissue injury in a miniature swine model of cancer therapy-related cardiovascular toxicity. J Cardiovasc Magn Reson 2024; 26:101033. [PMID: 38460840 PMCID: PMC11126930 DOI: 10.1016/j.jocmr.2024.101033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 02/12/2024] [Accepted: 02/26/2024] [Indexed: 03/11/2024] Open
Abstract
BACKGROUND Left ventricular ejection fraction (LVEF) is the most commonly clinically used imaging parameter for assessing cancer therapy-related cardiac dysfunction (CTRCD). However, LVEF declines may occur late, after substantial injury. This study sought to investigate cardiovascular magnetic resonance (CMR) imaging markers of subclinical cardiac injury in a miniature swine model. METHODS Female Yucatan miniature swine (n = 14) received doxorubicin (2 mg/kg) every 3 weeks for 4 cycles. CMR, including cine, tissue characterization via T1 and T2 mapping, and late gadolinium enhancement (LGE) were performed on the same day as doxorubicin administration and 3 weeks after the final chemotherapy cycle. In addition, magnetic resonance spectroscopy (MRS) was performed during the 3 weeks after the final chemotherapy in 7 pigs. A single CMR and MRS exam were also performed in 3 Yucatan miniature swine that were age- and weight-matched to the final imaging exam of the doxorubicin-treated swine to serve as controls. CTRCD was defined as histological early morphologic changes, including cytoplasmic vacuolization and myofibrillar loss of myocytes, based on post-mortem analysis of humanely euthanized pigs after the final CMR exam. RESULTS Of 13 swine completing 5 serial CMR scans, 10 (77%) had histological evidence of CTRCD. Three animals had neither histological evidence nor changes in LVEF from baseline. No absolute LVEF <40% or LGE was observed. Native T1, extracellular volume (ECV), and T2 at 12 weeks were significantly higher in swine with CTRCD than those without CTRCD (1178 ms vs. 1134 ms, p = 0.002, 27.4% vs. 24.5%, p = 0.03, and 38.1 ms vs. 36.4 ms, p = 0.02, respectively). There were no significant changes in strain parameters. The temporal trajectories in native T1, ECV, and T2 in swine with CTRCD showed similar and statistically significant increases. At the same time, there were no differences in their temporal changes between those with and without CTRCD. MRS myocardial triglyceride content substantially differed among controls, swine with and without CTRCD (0.89%, 0.30%, 0.54%, respectively, analysis of variance, p = 0.01), and associated with the severity of histological findings and incidence of vacuolated cardiomyocytes. CONCLUSION Serial CMR imaging alone has a limited ability to detect histologic CTRCD beyond LVEF. Integrating MRS myocardial triglyceride content may be useful for detection of early potential CTRCD.
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MESH Headings
- Animals
- Female
- Swine, Miniature
- Doxorubicin
- Cardiotoxicity
- Myocardium/pathology
- Myocardium/metabolism
- Swine
- Disease Models, Animal
- Magnetic Resonance Imaging, Cine
- Ventricular Function, Left/drug effects
- Predictive Value of Tests
- Stroke Volume/drug effects
- Time Factors
- Magnetic Resonance Spectroscopy
- Antibiotics, Antineoplastic/adverse effects
- Contrast Media
- Ventricular Dysfunction, Left/chemically induced
- Ventricular Dysfunction, Left/diagnostic imaging
- Ventricular Dysfunction, Left/physiopathology
- Ventricular Dysfunction, Left/pathology
- Ventricular Dysfunction, Left/metabolism
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Affiliation(s)
- Kei Nakata
- Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Selcuk Kucukseymen
- Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Xiaoying Cai
- Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA; Siemens Medical Solutions USA, Inc., Boston, Massachusetts, USA
| | - Tuyen Yankama
- Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Jennifer Rodriguez
- Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Eiryu Sai
- Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Patrick Pierce
- Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Long Ngo
- Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Shiro Nakamori
- Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA; Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Nadine Tung
- Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Warren J Manning
- Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Reza Nezafat
- Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.
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Shang Y, Theilenberg S, Gajdošík M, Schreiber LM, Juchem C. High resolution simulation and measurement demonstrate oscillatory spatiotemporal B 0 fluctuations across the human cardiac cycle. Magn Reson Med 2024; 91:91-104. [PMID: 37598417 DOI: 10.1002/mrm.29831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/12/2023] [Accepted: 07/28/2023] [Indexed: 08/22/2023]
Abstract
PURPOSE Functional cardiac MRI scans employing balanced steady-state free precession sequences suffer from dark band artifacts in the myocardium due to B0 inhomogeneity. We recently introduced a novel method for the theoretical derivation of B0 distributions in the human heart. This study aims to simulate the B0 distributions in the heart across the cardiac cycle using structural MR images and validate the simulations via in vivo measured cardiac phase-specific B0 maps on the same subjects at 3T. METHODS Cardiac phase-specific B0 field maps were acquired from eight healthy subjects at 3T. B0 conditions were simulated based on tissue masks created from the cardiac-phase specific structural images from the in vivo B0 map scan and anatomical images from a thoracic MRI scan, adopting our recently published approach. The simulations and in vivo measurements were compared by calculating the spatial correlation of their B0 distributions and temporal correlation of the derived spherical harmonic coefficients throughout the cardiac cycle. RESULTS The spatial comparison of B0 maps between the simulation and in vivo measurement indicates an overall average correlation coefficient of 0.91 across the cardiac cycle in all subjects. Both groups show consistent high-level B0 patterns. Temporal variations of B0 conditions exhibit sinusoidal characteristics and are strongly correlated between simulation and in vivo. CONCLUSION Theoretical simulations employing regional anatomical features were validated by direct in vivo B0 mapping in the same subjects. The spatial B0 condition throughout the cardiac cycle exhibits oscillatory characteristics due to structural distortions of cardiac motion.
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Affiliation(s)
- Yun Shang
- Department of Biomedical Engineering, Columbia University in the City of New York, New York, New York, USA
| | - Sebastian Theilenberg
- Department of Biomedical Engineering, Columbia University in the City of New York, New York, New York, USA
| | - Martin Gajdošík
- Department of Biomedical Engineering, Columbia University in the City of New York, New York, New York, USA
| | - Laura M Schreiber
- Chair of Molecular and Cellular Imaging, Comprehensive Heart Failure Center, University Hospital Wuerzburg, Wuerzburg, Germany
- Department of Cardiovascular Imaging, Comprehensive Heart Failure Center, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Christoph Juchem
- Department of Biomedical Engineering, Columbia University in the City of New York, New York, New York, USA
- Department of Radiology, Columbia University in the City of New York, New York, New York, USA
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Peereboom SM, Guenthner C, Albannay MM, Kozerke S. Preliminary experience of cardiac proton spectroscopy at 0.75 T. NMR IN BIOMEDICINE 2023; 36:e4892. [PMID: 36504173 DOI: 10.1002/nbm.4892] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 11/10/2022] [Accepted: 12/09/2022] [Indexed: 06/15/2023]
Abstract
Recent work on high-performance lower-field MR systems has renewed the interest in assessing relative advantages and disadvantages of magnetic fields less than 1 T. The objective of the present work was to investigate signal-to-noise ratio (SNR) scaling of point-resolved spectroscopy as a function of field strength and to test the feasibility of proton MRS of triglycerides (TGs) in human in vivo myocardium at 0.75 T relative to 1.5 T and 3 T. Measurements at 0.75 T were obtained by temporarily ramping down a clinical 3 T MR scanner. System configurations at 0.75, 1.5 and 3 T featured identical hard- and software, except for differences in transmit/receive coil geometries and receive channel count, which were accounted for in SNR comparisons. Proton MRS was performed at 0.75 T, 1.5 T and 3 T in ex vivo tissue and in vivo calf muscle to measure T1 and T2 values as a function of field strength, which in turn served as input to simulations of SNR scaling and field-dependent TG fit errors. Preliminary in vivo spectra of myocardium were acquired at 0.75 T, 1.5 T and 3 T in healthy subjects. Measurements of both ex vivo tissue and in vivo muscle tissue at 0.75 T versus 1.5 T and 3 T confirmed decreasing T1 and increasing T2 * for decreasing field strengths. Using measured T1 , T2 and T2 * as input and using field-dependent echo time and bandwidth scaling, simulated Cramér-Rao lower bounds of TG amplitudes at 0.75 T were 2.3 and 4.5 times larger with respect to 1.5 T and 3 T, respectively. In vivo measurements demonstrate that human proton spectroscopy of TGs in cardiac muscle is feasible at 0.75 T, supporting the potential practical value of lower-field high-performance MR systems.
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Affiliation(s)
- Sophie M Peereboom
- Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland
| | - Christian Guenthner
- Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland
| | - Mohammed M Albannay
- Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland
| | - Sebastian Kozerke
- Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland
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Wampl S, Körner T, Valkovič L, Trattnig S, Wolzt M, Meyerspeer M, Schmid AI. Investigating the effect of trigger delay on cardiac 31P MRS signals. Sci Rep 2021; 11:9268. [PMID: 33927234 PMCID: PMC8085231 DOI: 10.1038/s41598-021-87063-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 03/22/2021] [Indexed: 01/15/2023] Open
Abstract
The heart’s geometry and its metabolic activity vary over the cardiac cycle. The effect of these fluctuations on phosphorus (31P) magnetic resonance spectroscopy (MRS) data quality and metabolite ratios was investigated. 12 healthy volunteers were measured using a 7 T MR scanner and a cardiac 31P-1H loop coil. 31P chemical shift imaging data were acquired untriggered and at four different times during the cardiac cycle using acoustic triggering. Signals of adenosine-triphosphate (ATP), phosphocreatine (PCr), inorganic phosphate (Pi) and 2,3-diphosphoglycerate (2,3-DPG) and their fit quality as Cramér-Rao lower bounds (CRLB) were quantified including corrections for contamination by 31P signals from blood, flip angle, saturation and total acquisition time. The myocardial filling factor was estimated from cine short axis views. The corrected signals of PCr and \documentclass[12pt]{minimal}
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\begin{document}$$\gamma$$\end{document}γ-ATP were higher during end-systole and lower during diastasis than in untriggered acquisitions (\documentclass[12pt]{minimal}
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\begin{document}$$P<0.05$$\end{document}P<0.05). Signal intensities of untriggered scans were between those with triggering to end-systole and diastasis. Fit quality of PCr and \documentclass[12pt]{minimal}
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\begin{document}$$\gamma$$\end{document}γ-ATP peaks was best during end-systole when blood contamination of ATP and Pi signals was lowest. While metabolite ratios and pH remained stable over the cardiac cycle, signal amplitudes correlated strongly with myocardial voxel filling. Triggering of cardiac 31P MRS acquisitions improves signal amplitudes and fit quality if the trigger delay is set to end-systole. We conclude that triggering to end-systole is superior to triggering to diastasis.
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Affiliation(s)
- Stefan Wampl
- Medical University of Vienna, High Field MR Center, Center for Medical Physics and Biomedical Engineering, Vienna, 1090, Austria
| | - Tito Körner
- Medical University of Vienna, High Field MR Center, Center for Medical Physics and Biomedical Engineering, Vienna, 1090, Austria
| | - Ladislav Valkovič
- Oxford Centre for Clinical Magnetic Resonance Research (OCMR), RDM Cardiovascular Medicine, University of Oxford, Oxford, OX3 9DU, United Kingdom.,Department of Imaging Methods, Institute of Measurement Science, Slovak Academy of Sciences, Bratislava, 814 04, Slovakia
| | - Siegfried Trattnig
- Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, High Field MR Center, Vienna, 1090, Austria
| | - Michael Wolzt
- Department of Clinical Pharmacology, Medical University of Vienna, Vienna, 1090, Austria
| | - Martin Meyerspeer
- Medical University of Vienna, High Field MR Center, Center for Medical Physics and Biomedical Engineering, Vienna, 1090, Austria
| | - Albrecht Ingo Schmid
- Medical University of Vienna, High Field MR Center, Center for Medical Physics and Biomedical Engineering, Vienna, 1090, Austria.
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5
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Bakermans AJ, Boekholdt SM, de Vries DK, Reckman YJ, Farag ES, de Heer P, Uthman L, Denis SW, Zuurbier CJ, Houtkooper RH, Koolbergen DR, Kluin J, Planken RN, Lamb HJ, Webb AG, Strijkers GJ, Beard DA, Jeneson JAL, Nederveen AJ. Quantification of Myocardial Creatine and Triglyceride Content in the Human Heart: Precision and Accuracy of in vivo Proton Magnetic Resonance Spectroscopy. J Magn Reson Imaging 2021; 54:411-420. [PMID: 33569824 PMCID: PMC8277665 DOI: 10.1002/jmri.27531] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/10/2021] [Accepted: 01/11/2021] [Indexed: 12/26/2022] Open
Abstract
Background Proton magnetic resonance spectroscopy (1H‐MRS) of the human heart is deemed to be a quantitative method to investigate myocardial metabolite content, but thorough validations of in vivo measurements against invasive techniques are lacking. Purpose To determine measurement precision and accuracy for quantifications of myocardial total creatine and triglyceride content with localized 1H‐MRS. Study type Test–retest repeatability and measurement validation study. Subjects Sixteen volunteers and 22 patients scheduled for open‐heart aortic valve replacement or septal myectomy. Field Strength/Sequence Prospectively ECG‐triggered respiratory‐gated free‐breathing single‐voxel point‐resolved spectroscopy (PRESS) sequence at 3 T. Assessment Myocardial total creatine and triglyceride content were quantified relative to the total water content by fitting the 1H‐MR spectra. Precision was assessed with measurement repeatability. Accuracy was assessed by validating in vivo 1H‐MRS measurements against biochemical assays in myocardial tissue from the same subjects. Statistical Tests Intrasession and intersession repeatability was assessed using Bland–Altman analyses. Agreement between 1H‐MRS measurements and biochemical assay was tested with regression analyses. Results The intersession repeatability coefficient for myocardial total creatine content was 41.8% with a mean value of 0.083% ± 0.020% of the total water signal, and 36.7% for myocardial triglyceride content with a mean value of 0.35% ± 0.13% of the total water signal. Ex vivo myocardial total creatine concentrations in tissue samples correlated with the in vivo myocardial total creatine content measured with 1H‐MRS: n = 22, r = 0.44; P < 0.05. Likewise, ex vivo myocardial triglyceride concentrations correlated with the in vivo myocardial triglyceride content: n = 20, r = 0.50; P < 0.05. Data Conclusion We validated the use of localized 1H‐MRS of the human heart at 3 T for quantitative assessments of in vivo myocardial tissue metabolite content by estimating the measurement precision and accuracy. Level of Evidence 2 Technical Efficacy Stage 2
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Affiliation(s)
- Adrianus J Bakermans
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - S Matthijs Boekholdt
- Department of Cardiology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Dylan K de Vries
- Department of Experimental Cardiology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Yolan J Reckman
- Department of Experimental Cardiology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Emile S Farag
- Department of Cardiothoracic Surgery, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Paul de Heer
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.,C.J. Gorter Center for High Field MR, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Laween Uthman
- Laboratory of Experimental Intensive Care and Anesthesiology, Department of Anesthesiology, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Simone W Denis
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Coert J Zuurbier
- Laboratory of Experimental Intensive Care and Anesthesiology, Department of Anesthesiology, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Riekelt H Houtkooper
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - David R Koolbergen
- Department of Cardiothoracic Surgery, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Jolanda Kluin
- Department of Cardiothoracic Surgery, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - R Nils Planken
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Hildo J Lamb
- Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Andrew G Webb
- C.J. Gorter Center for High Field MR, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Gustav J Strijkers
- Biomedical Engineering and Physics, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Daniel A Beard
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Jeroen A L Jeneson
- Neuroimaging Center, Department of Neuroscience, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Aart J Nederveen
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
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Aengevaeren VL, Froeling M, van den Berg‐Faay S, Hooijmans MT, Monte JR, Strijkers GJ, Nederveen AJ, Eijsvogels TM, Bakermans AJ. Marathon running transiently depletes the myocardial lipid pool. Physiol Rep 2020; 8:e14543. [PMID: 32869950 PMCID: PMC7460059 DOI: 10.14814/phy2.14543] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 07/22/2020] [Accepted: 07/23/2020] [Indexed: 01/05/2023] Open
Abstract
Lipids, stored as intracellular triacylglycerol droplets within the myocardium, serve as an important source of energy, particularly in times of prolonged increased energy expenditure. In only a few studies, the acute effects of exercise on such ectopic myocardial lipid storage were investigated. We studied the dynamic behavior of the myocardial lipid pool in response to completing the 2017 Amsterdam Marathon using proton magnetic resonance (MR) spectroscopy (1 H-MRS). We hypothesized that the prolonged increased myocardial energy demand of running a marathon could shift the balance of myocardial triacylglycerol turnover from triacylglycerol synthesis toward lipolysis and mitochondrial fatty acid β-oxidation, and decrease the myocardial lipid pool. We employed two 3 Tesla MR systems in parallel to noninvasively examine endurance-trained healthy men (n = 8; age 50.7 [50.1-52.7] y) at 1 week prior (baseline), <6 hr after finishing the marathon (post-marathon), and 2 weeks thereafter (recovery). Exercise intensity was 89 ± 6% of the age-predicted maximal heart rate, with a finish time of 3:56 [3:37-4:42] h:min. Myocardial lipid content was 0.66 [0.58-0.87]% of the total myocardial water signal at baseline, was lower post-marathon (0.47 [0.41-0.63]% of the total myocardial water signal), and had restored to 0.55 [0.49-0.83]% of the total myocardial water signal at recovery, representing a transient marathon running-induced depletion of 29 ± 24% (p = .04). The magnitude of this myocardial lipid pool depletion did not correlate with exercise intensity (r = -0.39; p = .39), nor with marathon finishing time (ρ = 0.57; p = .15). Our data show that prolonged high-intensity exercise can induce a transient depletion of the myocardial lipid pool, reinforcing the dynamic nature of ectopic triacylglycerol storage under real-life conditions of extreme endurance exercise.
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Affiliation(s)
- Vincent L. Aengevaeren
- Radboud Institute for Health Science, Department of PhysiologyRadboud University Medical CenterNijmegenThe Netherlands
- Radboud Institute for Health Sciences, Department of CardiologyRadboud University Medical CenterNijmegenThe Netherlands
| | - Martijn Froeling
- Department of RadiologyUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Sandra van den Berg‐Faay
- Department of Radiology and Nuclear MedicineAmsterdam University Medical Centers, University of AmsterdamAmsterdamThe Netherlands
| | - Melissa T. Hooijmans
- Biomedical Engineering and PhysicsAmsterdam University Medical Centers, University of AmsterdamAmsterdamThe Netherlands
| | - Jithsa R. Monte
- Department of Radiology and Nuclear MedicineAmsterdam University Medical Centers, University of AmsterdamAmsterdamThe Netherlands
| | - Gustav J. Strijkers
- Biomedical Engineering and PhysicsAmsterdam University Medical Centers, University of AmsterdamAmsterdamThe Netherlands
| | - Aart J. Nederveen
- Department of Radiology and Nuclear MedicineAmsterdam University Medical Centers, University of AmsterdamAmsterdamThe Netherlands
| | - Thijs M.H. Eijsvogels
- Radboud Institute for Health Science, Department of PhysiologyRadboud University Medical CenterNijmegenThe Netherlands
| | - Adrianus J. Bakermans
- Department of Radiology and Nuclear MedicineAmsterdam University Medical Centers, University of AmsterdamAmsterdamThe Netherlands
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Knottnerus SJG, Bleeker JC, Ferdinandusse S, Houtkooper RH, Langeveld M, Nederveen AJ, Strijkers GJ, Visser G, Wanders RJA, Wijburg FA, Boekholdt SM, Bakermans AJ. Subclinical effects of long-chain fatty acid β-oxidation deficiency on the adult heart: A case-control magnetic resonance study. J Inherit Metab Dis 2020; 43:969-980. [PMID: 32463482 PMCID: PMC7539973 DOI: 10.1002/jimd.12266] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 05/05/2020] [Accepted: 05/25/2020] [Indexed: 12/31/2022]
Abstract
Cardiomyopathy can be a severe complication in patients with long-chain fatty acid β-oxidation disorders (LCFAOD), particularly during episodes of metabolic derangement. It is unknown whether latent cardiac abnormalities exist in adult patients. To investigate cardiac involvement in LCFAOD, we used proton magnetic resonance imaging (MRI) and spectroscopy (1 H-MRS) to quantify heart function, myocardial tissue characteristics, and myocardial lipid content in 14 adult patients (two with long-chain 3-hydroxyacyl-CoA dehydrogenase deficiency (LCHADD); four with carnitine palmitoyltransferase II deficiency (CPT2D); and eight with very long-chain acyl-CoA dehydrogenase deficiency (VLCADD)) and 14 gender-, age-, and BMI-matched control subjects. Examinations included cine MRI, MR tagging, native myocardial T1 and T2 mapping, and localized 1 H-MRS at 3 Tesla. Left ventricular (LV) myocardial mass (P = .011) and the LV myocardial mass-to-volume ratio (P = .008) were higher in patients, while ejection fraction (EF) was normal (P = .397). LV torsion was higher in patients (P = .026), whereas circumferential shortening was similar compared with controls (P = .875). LV hypertrophy was accompanied by high myocardial T1 values (indicative of diffuse fibrosis) in two patients, and additionally a low EF in one case. Myocardial lipid content was similar in patients and controls. We identified subclinical morphological and functional differences between the hearts of LCFAOD patients and matched control subjects using state-of-the-art MR methods. Our results suggest a chronic cardiac disease phenotype and hypertrophic LV remodeling of the heart in LCFAOD, potentially triggered by a mild, but chronic, energy deficiency, rather than by lipotoxic effects of accumulating lipid metabolites.
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Affiliation(s)
- Suzan J. G. Knottnerus
- Department of Metabolic DiseasesWilhelmina Children's Hospital, University Medical Center UtrechtUtrechtThe Netherlands
- Laboratory Genetic Metabolic DiseasesAmsterdam University Medical Centers, University of Amsterdam, Amsterdam Gastroenterology and MetabolismAmsterdamThe Netherlands
| | - Jeannette C. Bleeker
- Department of Metabolic DiseasesWilhelmina Children's Hospital, University Medical Center UtrechtUtrechtThe Netherlands
- Laboratory Genetic Metabolic DiseasesAmsterdam University Medical Centers, University of Amsterdam, Amsterdam Gastroenterology and MetabolismAmsterdamThe Netherlands
| | - Sacha Ferdinandusse
- Laboratory Genetic Metabolic DiseasesAmsterdam University Medical Centers, University of Amsterdam, Amsterdam Gastroenterology and MetabolismAmsterdamThe Netherlands
| | - Riekelt H. Houtkooper
- Laboratory Genetic Metabolic DiseasesAmsterdam University Medical Centers, University of Amsterdam, Amsterdam Gastroenterology and MetabolismAmsterdamThe Netherlands
| | - Mirjam Langeveld
- Department of Endocrinology and MetabolismAmsterdam University Medical Centers, University of AmsterdamAmsterdamThe Netherlands
| | - Aart J. Nederveen
- Department of Radiology and Nuclear MedicineAmsterdam University Medical Centers, University of AmsterdamAmsterdamThe Netherlands
| | - Gustav J. Strijkers
- Biomedical Engineering and Physics, Amsterdam University Medical CentersUniversity of AmsterdamAmsterdamThe Netherlands
| | - Gepke Visser
- Department of Metabolic DiseasesWilhelmina Children's Hospital, University Medical Center UtrechtUtrechtThe Netherlands
- Laboratory Genetic Metabolic DiseasesAmsterdam University Medical Centers, University of Amsterdam, Amsterdam Gastroenterology and MetabolismAmsterdamThe Netherlands
| | - Ronald J. A. Wanders
- Laboratory Genetic Metabolic DiseasesAmsterdam University Medical Centers, University of Amsterdam, Amsterdam Gastroenterology and MetabolismAmsterdamThe Netherlands
| | - Frits A. Wijburg
- Department of PediatricsEmma Children's Hospital, Amsterdam University Medical Centers, University of AmsterdamAmsterdamThe Netherlands
| | - S. Matthijs Boekholdt
- Department of CardiologyAmsterdam University Medical Centers, University of AmsterdamAmsterdamThe Netherlands
| | - Adrianus J. Bakermans
- Department of Radiology and Nuclear MedicineAmsterdam University Medical Centers, University of AmsterdamAmsterdamThe Netherlands
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Bizino MB, Jazet IM, de Heer P, van Eyk HJ, Dekkers IA, Rensen PCN, Paiman EHM, Lamb HJ, Smit JW. Placebo-controlled randomised trial with liraglutide on magnetic resonance endpoints in individuals with type 2 diabetes: a pre-specified secondary study on ectopic fat accumulation. Diabetologia 2020; 63:65-74. [PMID: 31690988 PMCID: PMC6890592 DOI: 10.1007/s00125-019-05021-6] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 08/28/2019] [Indexed: 01/18/2023]
Abstract
AIMS/HYPOTHESIS The aim of this work was to assess the effect of liraglutide on ectopic fat accumulation in individuals with type 2 diabetes mellitus. METHODS This study is a pre-specified subanalysis of the MAGNetic resonance Assessment of VICTOza efficacy in the Regression of cardiovascular dysfunction In type 2 diAbetes mellitus (MAGNA VICTORIA) study, with primary endpoints being the effects of liraglutide on left ventricular diastolic and systolic function. The MAGNA VICTORIA study was a single-centre, parallel-group trial in 50 individuals with type 2 diabetes mellitus (BMI >25 kg/m2) who were randomly assigned (1:1, stratified for sex and insulin use) to receive liraglutide 1.8 mg once daily or placebo for 26 weeks, added to standard care. Participants, study personnel and outcome assessors were blinded to treatment allocation. The secondary endpoints of visceral adipose tissue (VAT), abdominal subcutaneous adipose tissue (SAT) and epicardial fat were measured with MRI. Hepatic triacylglycerol content (HTGC) and myocardial triacylglycerol content (MTGC) were quantified with proton MR spectroscopy. Between-group differences (change from baseline) were tested for significance using ANCOVA. Mean differences with 95% CIs were reported. RESULTS The trial was completed in 2016. Twenty-four participants were randomised to receive liraglutide and 26 to receive placebo. One patient in the liraglutide group withdrew consent before having received the study drug and was not included in the intention-to-treat analysis. Liraglutide (n = 23) vs placebo (n = 26) significantly reduced body weight (liraglutide 98.4 ± 13.8 kg to 94.3 ± 14.9 kg; placebo 94.5 ± 13.1 kg to 93.9 ± 13.2 kg; estimated treatment effect -4.5 [95% CI -6.4, -2.6] kg). HbA1c declined in both groups without a significant treatment effect of liraglutide vs placebo (liraglutide 66.7 ± 11.5 mmol/mol to 55.0 ± 13.2 mmol/mol [8.4 ± 1.1% to 7.3 ± 1.2%]; placebo 64.7 ± 10.2 mmol/mol to 56.9 ± 6.9 mmol/mol [8.2 ± 1.0% to 7.5 ± 0.7%]; estimated treatment effect -2.9 [95% CI -8.1, 2.3] mmol/mol or -0.3 [95% CI -0.8, 0.2]%). VAT did not change significantly between groups (liraglutide 207 ± 87 cm2 to 203 ± 88 cm2; placebo 204 ± 63 cm2 to 200 ± 55 cm2; estimated treatment effect -7 [95% CI -24, 10] cm2), while SAT was reduced by a significantly greater extent with liraglutide than with placebo (liraglutide 361 ± 142 cm2 to 339 ± 131 cm2; placebo 329 ± 107 cm2 to 333 ± 125 cm2; estimated treatment effect -29 [95% CI -51, -8] cm2). Epicardial fat did not change significantly between groups (liraglutide 8.9 ± 4.3 cm2 to 9.1 ± 4.7 cm2; placebo 9.6 ± 4.1 cm2 to 9.6 ± 4.6 cm2; estimated treatment effect 0.2 [95% CI -1.5, 1.8] cm2). Change in HTGC was not different between groups (liraglutide 18.1 ± 11.2% to 12.0 ± 7.7%; placebo 18.4 ± 9.4% to 14.7 ± 10.0%; estimated treatment effect -2.1 [95% CI -5.3, 1.0]%). MTGC was not different after treatment with liraglutide (1.5 ± 0.6% to 1.2 ± 0.6%) vs placebo (1.3 ± 0.5% to 1.2 ± 0.6%), with an estimated treatment effect of -0.1 (95% CI -0.4, 0.2)%. There were no adjudicated serious adverse events. CONCLUSIONS/INTERPRETATION Compared with placebo, liraglutide-treated participants lost significantly more body weight. Liraglutide primarily reduced subcutaneous fat but not visceral, hepatic, myocardial or epicardial fat. Future larger studies are needed to confirm the results of this secondary endpoint study. TRIAL REGISTRATION ClinicalTrials.gov NCT01761318. FUNDING This study was funded by Novo Nordisk A/S (Bagsvaerd, Denmark).
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Affiliation(s)
- Maurice B Bizino
- Department of Radiology, Leiden University Medical Center, LUMC postzone C2S, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands.
| | - Ingrid M Jazet
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, LUMC post zone C7Q, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands
| | - Paul de Heer
- Department of Radiology, Leiden University Medical Center, LUMC postzone C2S, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands
| | - Huub J van Eyk
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, LUMC post zone C7Q, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Ilona A Dekkers
- Department of Radiology, Leiden University Medical Center, LUMC postzone C2S, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands
| | - Patrick C N Rensen
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, LUMC post zone C7Q, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Elisabeth H M Paiman
- Department of Radiology, Leiden University Medical Center, LUMC postzone C2S, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands
| | - Hildebrandus J Lamb
- Department of Radiology, Leiden University Medical Center, LUMC postzone C2S, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands
| | - Johannes W Smit
- Department of Medicine, Radboud University Medical Center, Nijmegen, the Netherlands
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Peereboom SM, Gastl M, Fuetterer M, Kozerke S. Navigator-free metabolite-cycled proton spectroscopy of the heart. Magn Reson Med 2019; 83:795-805. [PMID: 31448841 DOI: 10.1002/mrm.27961] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 07/04/2019] [Accepted: 07/31/2019] [Indexed: 11/07/2022]
Abstract
PURPOSE Respiratory gating in cardiac water-suppressed (WS) proton spectroscopy leads to long and unpredictable scan times. Metabolite cycling allows to perform frequency and phase correction on the water signal and, hence, offers an approach to navigator-free cardiac spectroscopy with fixed scan time. The objective of the present study was to develop and implement navigator-free metabolite-cycled cardiac proton spectroscopy (MC nonav) and compare it with standard navigator-gated WS (WS nav) and navigator-free WS (WS nonav) measurements for the assessment of triglyceride-to-water ratios (TG/W) and creatine-to-water ratios (CR/W) in the intraventricular septum of the in vivo heart. METHODS Navigator-free metabolite-cycled spectroscopy was implemented on a clinical 1.5T system. In vivo measurements were performed on 10 young and 5 older healthy volunteers to assess signal-to-noise ratio efficiency as well as TG/W and CR/W and the relative Cramér-Rao lower bounds for CR. The performance of the metabolite-cycled sequence was verified using simulations. RESULTS On average, scan times of MC nonav were 3.4 times shorter compared with WS nav, while no significant bias for TG/W was observed (coefficient of variation = 14.0%). signal-to-noise ratio efficiency of both TG and CR increased for MC nonav compared with WS nav. Relative Cramér-Rao lower bounds of CR decreased for MC nonav. Overall spectral quality was found comparable between MC nonav and WS nav, while it was inferior for WS nonav. CONCLUSION Navigator-free metabolite-cycled cardiac proton spectroscopy offers 3.4-fold accelerated assessment of TG/W and CR/W in the heart with preserved spectral quality when compared with navigator-gated WS scans.
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Affiliation(s)
- Sophie M Peereboom
- Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland
| | - Mareike Gastl
- Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland
| | - Maximilian Fuetterer
- Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland
| | - Sebastian Kozerke
- Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland
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10
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van Eyk HJ, Paiman EHM, Bizino MB, de Heer P, Geelhoed-Duijvestijn PH, Kharagjitsingh AV, Smit JWA, Lamb HJ, Rensen PCN, Jazet IM. A double-blind, placebo-controlled, randomised trial to assess the effect of liraglutide on ectopic fat accumulation in South Asian type 2 diabetes patients. Cardiovasc Diabetol 2019; 18:87. [PMID: 31288820 PMCID: PMC6615254 DOI: 10.1186/s12933-019-0890-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 06/23/2019] [Indexed: 01/06/2023] Open
Abstract
Background South Asians have a high risk to develop type 2 diabetes, which may be related to substantial ectopic fat deposition. Since glucagon-like peptide-1 analogues can reduce ectopic fat accumulation, the aim of the present study was to assess the effect of treatment with liraglutide for 26 weeks on ectopic fat deposition and HbA1c in South Asian patients with type 2 diabetes. Methods In a placebo-controlled trial, 47 South Asian patients with type 2 diabetes were randomly assigned to treatment with liraglutide (1.8 mg/day) or placebo added to standard care. At baseline and after 26 weeks of treatment we assessed abdominal subcutaneous, visceral, epicardial and paracardial adipose tissue volume using MRI. Furthermore, myocardial and hepatic triglyceride content were examined with proton magnetic resonance spectroscopy. Results In the intention-to-treat analysis, liraglutide decreased body weight compared to placebo (− 3.9 ± 3.6 kg vs − 0.6 ± 2.2 kg; mean change from baseline (liraglutide vs placebo): − 3.5 kg; 95% CI [− 5.3, − 1.8]) without significant effects on the different adipose tissue compartments. HbA1c was decreased in both groups without between group differences. In the per-protocol analysis, liraglutide did decrease visceral adipose tissue volume compared to placebo (− 23 ± 27 cm2 vs − 2 ± 17 cm2; mean change from baseline (liraglutide vs placebo): − 17 cm2; 95% CI [− 32, − 3]). Furthermore, HbA1c was decreased by liraglutide compared to placebo (− 1.0 ± 0.8% (− 10.5 ± 9.1 mmol/mol)) vs (− 0.6 ± 0.8% (− 6.1 ± 8.8 mmol/mol)), with a between group difference (mean change from baseline (liraglutide vs placebo): − 0.6% (− 6.5 mmol/mol); 95% CI [− 1.1, − 0.1 (− 11.5, − 1.5)]). Interestingly, the decrease of visceral adipose tissue volume was associated with the reduction of HbA1c (β: 0.165 mmol/mol (0.015%) per 1 cm2 decrease of visceral adipose tissue volume; 95% CI [0.062, 0.267 (0.006, 0.024%)]). Conclusions While the intention-to-treat analysis did not show effects of liraglutide on ectopic fat and HbA1c, per-protocol analysis showed that liraglutide decreases visceral adipose tissue volume, which was associated with improved glycaemic control in South Asians. Trial registration NCT02660047 (clinicaltrials.gov). Registered 21 January 2016
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Affiliation(s)
- Huub J van Eyk
- Dept. Medicine, Div. Endocrinology, Leiden University Medical Center (LUMC), Post Zone C7Q, P.O. Box 9600, 2300 RC, Leiden, The Netherlands. .,Einthoven Laboratory for Experimental Vascular Medicine, LUMC, Leiden, The Netherlands.
| | | | - Maurice B Bizino
- Dept. Medicine, Div. Endocrinology, Leiden University Medical Center (LUMC), Post Zone C7Q, P.O. Box 9600, 2300 RC, Leiden, The Netherlands.,Dept. Radiology, LUMC, Leiden, The Netherlands
| | - Paul de Heer
- Dept. Radiology and Nuclear Medicine, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | | | - Aan V Kharagjitsingh
- Dept. Medicine, Div. Endocrinology, Leiden University Medical Center (LUMC), Post Zone C7Q, P.O. Box 9600, 2300 RC, Leiden, The Netherlands.,Dept. Diabetology and Endocrinology, University Hospital Brussels, Brussels, Belgium
| | - Johannes W A Smit
- Dept. Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Patrick C N Rensen
- Dept. Medicine, Div. Endocrinology, Leiden University Medical Center (LUMC), Post Zone C7Q, P.O. Box 9600, 2300 RC, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, LUMC, Leiden, The Netherlands
| | - Ingrid M Jazet
- Dept. Medicine, Div. Endocrinology, Leiden University Medical Center (LUMC), Post Zone C7Q, P.O. Box 9600, 2300 RC, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, LUMC, Leiden, The Netherlands
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11
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Dellegrottaglie S, Scatteia A, Pascale CE, Renga F, Perrone-Filardi P. Evaluation of Cardiac Metabolism by Magnetic Resonance Spectroscopy in Heart Failure. Heart Fail Clin 2019; 15:421-433. [DOI: 10.1016/j.hfc.2019.02.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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12
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Gastl M, Peereboom SM, Fuetterer M, Boenner F, Kelm M, Manka R, Kozerke S. Retrospective phase-based gating for cardiac proton spectroscopy with fixed scan time. J Magn Reson Imaging 2019; 50:1973-1981. [PMID: 31125172 DOI: 10.1002/jmri.26802] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 05/13/2019] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND Respiratory motion is a major limiting factor for spectral quality and duration of in vivo proton MR spectroscopy of the heart. Prospective navigator gating is frequently applied to minimize the effects of respiratory motion, but scan durations are subject-dependent and hence difficult to predict. PURPOSE To implement cardiac proton MRS with fixed scan time by employing retrospective phase-based gating and to compare the proposed method to conventional navigator-gated MRS. STUDY TYPE Prospective. SUBJECTS Eighteen healthy volunteers (29.7 ± 7.8 years). FIELD STRENGTH/SEQUENCE 1.5, navigator-gated (16 averages without, 96 with water suppression [WS]) data acquisition as reference and navigator-free data acquisition with a fixed scan time (48 without WS, 304 with WS), cardiac-triggered point-resolved spectroscopy (PRESS). ASSESSMENT Navigator-free data acquisition with retrospective phase-based gating was compared with prospective navigator-gating. Navigator-free acquisition was repeated in 10 subjects to assess reproducibility. Scan time was assessed for prospective and retrospective gating. Retrospective phase-based gating was performed using a threshold based on the standard deviation (SD) of individual water (W) and triglyceride (TG) phases. STATISTICAL TESTS T-tests and Bland-Altman analysis. RESULTS The duration of the prospective navigator-gated scans ranged from 6:09 minutes to 21:50 minutes (mean 10:05 ± 3:46 min, gating efficiency 40.4 ± 10.5%), while data acquisition for retrospective phase-based gating had a fixed scan time of 11:44 minutes. Retrospective phase-based gating using a threshold of 1 × SD yielded a gating efficiency of 72.7 ± 4.3% and a coefficient of variation (CoV) of triglyceride-to-water ratios of 9.8% compared with the navigated reference. The intrasubject reproducibility of retrospective gating revealed a CoV of 9.5%. DATA CONCLUSION Cardiac proton MRS employing retrospective phase-based gating is feasible and provides reproducible assessment of TG/W in a fixed scan time. Since scan time is independent of respiratory motion, retrospective phase-based gating offers an approach to motion compensation with predictable exam time for proton MRS of the heart. LEVEL OF EVIDENCE 2 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;50:1973-1981.
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Affiliation(s)
- Mareike Gastl
- Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland.,Department of Cardiology, University Heart Center, University Hospital Zurich, Zurich, Switzerland.,Department of Cardiology, Pneumology and Angiology, Heinrich Heine University, Düsseldorf, Germany
| | - Sophie M Peereboom
- Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland
| | - Maximilian Fuetterer
- Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland
| | - Florian Boenner
- Department of Cardiology, Pneumology and Angiology, Heinrich Heine University, Düsseldorf, Germany
| | - Malte Kelm
- Department of Cardiology, Pneumology and Angiology, Heinrich Heine University, Düsseldorf, Germany
| | - Robert Manka
- Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland.,Department of Cardiology, University Heart Center, University Hospital Zurich, Zurich, Switzerland.,Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, Zurich, Switzerland
| | - Sebastian Kozerke
- Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland
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13
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Paiman EHM, Louwerens M, Bresters D, Westenberg JJM, Tao Q, van der Geest RJ, Lankester AC, Roest AAW, Lamb HJ. Late effects of pediatric hematopoietic stem cell transplantation on left ventricular function, aortic stiffness and myocardial tissue characteristics. J Cardiovasc Magn Reson 2019; 21:6. [PMID: 30651110 PMCID: PMC6335808 DOI: 10.1186/s12968-018-0513-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 12/04/2018] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Pediatric hematopoietic stem cell transplantation (HSCT) recipients are at increased risk of cardiovascular disease later in life. As HSCT survival has significantly improved, with a growing number of HSCT indications, tailored screening strategies for HSCT-related late effects are warranted. Little is known regarding the value of cardiovascular magnetic resonance (CMR) for early identification of high-risk patients after HSCT, before symptomatic cardiovascular disease manifests. This study aimed to assess CMR-derived left ventricular (LV) systolic and diastolic function, aortic stiffness and myocardial tissue characteristics in young adults who received HSCT during childhood. METHODS Sixteen patients (22.1 ± 1.5 years) treated with HSCT during childhood and 16 healthy controls (22.1 ± 1.8 years) underwent 3 T CMR. LV systolic and diastolic function were measured as LV ejection fraction (LVEF), the ratio of transmitral early and late peak filling rate (E/A), the estimated LV filling pressure (E/Ea) and global longitudinal and circumferential systolic strain and diastolic strain rates, using balanced steady-state free precession cine CMR and 2D velocity-encoded CMR over the mitral valve. Aortic stiffness, myocardial fibrosis and steatosis were assessed with 2D velocity-encoded CMR, native T1 mapping and proton CMR spectroscopy (1H-CMRS), respectively. RESULTS In the patient compared to the control group, E/Ea (9.92 ± 3.42 vs. 7.24 ± 2.29, P = 0.004) was higher, LVEF (54 ± 6% vs. 58 ± 5%, P = 0.055) and global longitudinal strain (GLS) ( -20.7 ± 3.5% vs. -22.9 ± 3.0%, P = 0.063) tended to be lower, while aortic pulse wave velocity (4.40 ± 0.26 vs. 4.29 ± 0.29 m/s, P = 0.29), native T1 (1211 ± 36 vs. 1227 ± 28 ms, P = 0.16) and myocardial triglyceride content (0.47 ± 0.18 vs. 0.50 ± 0.13%, P = 0.202) were comparable. There were no differences between patients and controls in E/A (2.76 ± 0.92 vs. 2.97 ± 0.91, P = 0.60) and diastolic strain rates. CONCLUSION In young adults who received HSCT during childhood, LV diastolic function was decreased (higher estimated LV filling pressure) and LV systolic function (LVEF and GLS) tended to be reduced as compared to healthy controls, whereas no concomitant differences were found in aortic stiffness and myocardial tissue characteristics. When using CMR, assessment of LV diastolic function in particular is important for early detection of patients at risk of HSCT-related cardiovascular disease, which may warrant closer surveillance.
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Affiliation(s)
- Elisabeth H M Paiman
- Department of Radiology, Leiden University Medical Center, P.O. Box 9600, postal zone C2-S, 2300 RC, Leiden, The Netherlands.
| | - Marloes Louwerens
- Department of Internal Medicine, Leiden University Medical Center, P.O. Box 9600, postal zone C7-Q, 2300 RC, Leiden, The Netherlands
| | - Dorine Bresters
- Department of Pediatrics, Leiden University Medical Center, Leiden, The Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Jos J M Westenberg
- Department of Radiology, Leiden University Medical Center, P.O. Box 9600, postal zone C2-S, 2300 RC, Leiden, The Netherlands
| | - Qian Tao
- Department of Radiology, Leiden University Medical Center, P.O. Box 9600, postal zone C2-S, 2300 RC, Leiden, The Netherlands
| | - Rob J van der Geest
- Department of Radiology, Leiden University Medical Center, P.O. Box 9600, postal zone C2-S, 2300 RC, Leiden, The Netherlands
| | - Arjan C Lankester
- Department of Pediatrics, Leiden University Medical Center, Leiden, The Netherlands
| | - Arno A W Roest
- Department of Pediatrics, Leiden University Medical Center, Leiden, The Netherlands
| | - Hildo J Lamb
- Department of Radiology, Leiden University Medical Center, P.O. Box 9600, postal zone C2-S, 2300 RC, Leiden, The Netherlands
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14
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Gastl M, Peereboom SM, Fuetterer M, Boenner F, Kelm M, Manka R, Kozerke S. Cardiac- versus diaphragm-based respiratory navigation for proton spectroscopy of the heart. MAGNETIC RESONANCE MATERIALS IN PHYSICS BIOLOGY AND MEDICINE 2018; 32:259-268. [PMID: 30377860 DOI: 10.1007/s10334-018-0711-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/16/2018] [Accepted: 10/22/2018] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To study inter-individual differences of the relation between diaphragm and heart motion, the objective of the present study was to implement respiratory navigation on the heart and compare it against the established method of navigator gating on the diaphragm for single-voxel cardiac 1H-MRS. MATERIALS AND METHODS 1H-MRS was performed on a 1.5T system in 19 healthy volunteers of mixed age (range 24-75 years). Spectra were recorded in a 6-8 ml voxel in the ventricular septum using a PRESS (point-resolved spectroscopy) sequence and ECG gating. Water-unsuppressed data acquired with pencil beam navigation on the heart were compared to data with navigation on the diaphragm. Water-suppressed data were obtained to assess triglyceride-to-water ratios. RESULTS Water phase and amplitude fluctuations for cardiac versus diaphragm navigation did not reveal significant differences. Both navigator positions provided comparable triglyceride-to-water ratios and gating efficiencies (coefficient of variation (CoV) 7.0%). The cardiac navigator showed a good reproducibility (CoV 5.2%). DISCUSSION Respiratory navigation on the heart does not convey an advantage over diaphragm-based navigator gating for cardiac 1H-MRS, but also no disadvantage. Consequently, cardiac and diaphragm respiratory navigation may be used interchangeably.
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Affiliation(s)
- Mareike Gastl
- Institute for Biomedical Engineering, University and ETH Zurich, Gloriastrasse 35, 8092, Zurich, Switzerland. .,Department of Cardiology, University Heart Center, University Hospital Zurich, Zurich, Switzerland. .,Department of Cardiology, Pneumology and Angiology, Heinrich Heine University, Düsseldorf, Germany.
| | - Sophie M Peereboom
- Institute for Biomedical Engineering, University and ETH Zurich, Gloriastrasse 35, 8092, Zurich, Switzerland
| | - Maximilian Fuetterer
- Institute for Biomedical Engineering, University and ETH Zurich, Gloriastrasse 35, 8092, Zurich, Switzerland
| | - Florian Boenner
- Department of Cardiology, Pneumology and Angiology, Heinrich Heine University, Düsseldorf, Germany
| | - Malte Kelm
- Department of Cardiology, Pneumology and Angiology, Heinrich Heine University, Düsseldorf, Germany
| | - Robert Manka
- Institute for Biomedical Engineering, University and ETH Zurich, Gloriastrasse 35, 8092, Zurich, Switzerland.,Department of Cardiology, University Heart Center, University Hospital Zurich, Zurich, Switzerland.,Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, Zurich, Switzerland
| | - Sebastian Kozerke
- Institute for Biomedical Engineering, University and ETH Zurich, Gloriastrasse 35, 8092, Zurich, Switzerland
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15
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Dekkers IA, de Heer P, Bizino MB, de Vries APJ, Lamb HJ. 1 H-MRS for the assessment of renal triglyceride content in humans at 3T: A primer and reproducibility study. J Magn Reson Imaging 2018. [PMID: 29517830 DOI: 10.1002/jmri.26003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Renal steatosis (fatty kidney) is a potential biomarker for obesity-related renal disease; however, noninvasive assessment of renal fat content remains a technical challenge. PURPOSE To evaluate reproducibility and explore clinical application of renal metabolic imaging for the quantification of renal triglyceride content (TG) using proton magnetic resonance spectroscopy (1 H-MRS). STUDY TYPE Reproducibility and clinical cohort study. POPULATION Twenty-three healthy volunteers (mean age 30.1 ± 13.4 years) and 15 patients with type 2 diabetes mellitus (T2DM) (mean age 59.3 ± 7.0 years). FIELD STRENGTH/SEQUENCE 3T, single-voxel point resolved spectroscopy (PRESS). ASSESSMENT Intra- and interexamination reproducibility of renal TG was assessed in healthy volunteers, and compared to T2DM patients. Intraexamination differences were obtained by repeating the 1 H-MRS measurement directly after the first 1 H-MRS without repositioning of the subject or changing surface coil and measurement volumes. Interexamination variability was studied by repeating the scan protocol after removal and replacement of the subject in the magnet, and subsequent repositioning of body coil and measurement volumes. STATISTICAL TESTS Reproducibility was determined using Pearson's correlation and Bland-Altman analyses. Differences in TG% between healthy volunteers and T2DM patients were assessed using the Mann-Whitney U-test. RESULTS After logarithmic (log) transformation, both intraexamination (r = 0.91, n = 19) and interexamination (r = 0.73, n = 9) measurements of renal TG content were highly correlated with the first renal TG measurements. Intraexamination and interexamination limits of agreement of renal log TG% were respectively [-1.36%, + 0.84%] and [-0.77%, + 0.62%]. Backtransformed limits of agreement were [-0.89%,+0.57%] and [-0.55%, + 0.43%] multiplied by mean TG for intra- and interexamination measurements. Overall median renal TG content was 0.12% [0.08, 0.22; 25th percentile, 75th percentile] in healthy volunteers and 0.20% [0.13, 0.22] in T2DM patients (P = 0.08). DATA CONCLUSION Renal metabolic imaging using 3T 1 H-MRS is a reproducible technique for the assessment of renal triglyceride content. LEVEL OF EVIDENCE 3 Technical Efficacy: Stage 1 J. MAGN. RESON. IMAGING 2018;48:507-513.
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Affiliation(s)
- Ilona A Dekkers
- Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Paul de Heer
- Department of Radiology and Nuclear Medicine, Academic Medical Center, Amsterdam, the Netherlands
| | - Maurice B Bizino
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, the Netherlands
| | - Aiko P J de Vries
- Department of Medicine, Division of Nephrology and Transplant Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Hildo J Lamb
- Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
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16
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Jonker JT, de Heer P, Engelse MA, van Rossenberg EH, Klessens CQF, Baelde HJ, Bajema IM, Koopmans SJ, Coelho PG, Streefland TCM, Webb AG, Dekkers IA, Rabelink TJ, Rensen PCN, Lamb HJ, de Vries APJ. Metabolic imaging of fatty kidney in diabesity: validation and dietary intervention. Nephrol Dial Transplant 2018; 33:224-230. [PMID: 28992141 DOI: 10.1093/ndt/gfx243] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 06/17/2017] [Indexed: 02/06/2023] Open
Abstract
Background Obesity and type 2 diabetes have not only been linked to fatty liver, but also to fatty kidney and chronic kidney disease. Since non-invasive tools are lacking to study fatty kidney in clinical studies, we explored agreement between proton magnetic resonance spectroscopy (1H-MRS) and enzymatic assessment of renal triglyceride content (without and with dietary intervention). We further studied the correlation between fatty kidney and fatty liver. Methods Triglyceride content in the renal cortex was measured by 1H-MRS on a 7-Tesla scanner in 27 pigs, among which 15 minipigs had been randomized to a 7-month control diet, cafeteria diet (CAF) or CAF with low-dose streptozocin (CAF-S) to induce insulin-independent diabetes. Renal biopsies were taken from corresponding MRS-voxel locations. Additionally, liver biopsies were taken and triglyceride content in all biopsies was measured by enzymatic assay. Results Renal triglyceride content measured by 1H-MRS and enzymatic assay correlated positively (r = 0.86, P < 0.0001). Compared with control diet-fed minipigs, renal triglyceride content was higher in CAF-S-fed minipigs (137 ± 51 nmol/mg protein, mean ± standard error of the mean, P < 0.05), but not in CAF-fed minipigs (60 ± 10 nmol/mg protein) compared with controls (40 ± 6 nmol/mg protein). Triglyceride contents in liver and kidney biopsies were strongly correlated (r = 0.97, P < 0.001). Conclusions Non-invasive measurement of renal triglyceride content by 1H-MRS closely predicts triglyceride content as measured enzymatically in biopsies, and fatty kidney appears to develop parallel to fatty liver. 1H-MRS may be a valuable tool to explore the role of fatty kidney in obesity and type 2 diabetic nephropathy in humans in vivo.
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Affiliation(s)
- Jacqueline T Jonker
- Department of Nephrology, Leiden University Medical Center, Leiden, The Netherlands
| | - Paul de Heer
- Department of Radiology, C.J. Gorter Center for High Field MR, Leiden University Medical Center, Leiden, The Netherlands
| | - Marten A Engelse
- Department of Nephrology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Celine Q F Klessens
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Hans J Baelde
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Ingeborg M Bajema
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Sietse Jan Koopmans
- Animal Science Group, Wageningen University and Research, Wageningen, The Netherlands
| | - Paulo G Coelho
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, New York University, New York, NY, USA
| | - Trea C M Streefland
- Department of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Andrew G Webb
- Department of Radiology, C.J. Gorter Center for High Field MR, Leiden University Medical Center, Leiden, The Netherlands
| | - Ilona A Dekkers
- Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Ton J Rabelink
- Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Patrick C N Rensen
- Department of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, The Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Hildo J Lamb
- Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Aiko P J de Vries
- Department of Nephrology, Leiden University Medical Center, Leiden, The Netherlands
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17
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Carlsson Å, Sohlin MC, Lagerstrand KM, Aronsson EF, Ljungberg M. The influence of cardiac triggering time and an optimization strategy for improved cardiac MR spectroscopy. Z Med Phys 2017; 27:310-317. [PMID: 28554547 DOI: 10.1016/j.zemedi.2017.04.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 04/24/2017] [Accepted: 04/25/2017] [Indexed: 01/17/2023]
Abstract
PURPOSE To study how cardiac motion affects the spectral quality in cardiac MR spectroscopy and to establish an optimization strategy for the cardiac triggering time for improved quality and success rate of cardiac MRS. METHOD Water spectra were acquired while the cardiac triggering time was varied over the cardiac cycle, and five different spectral quality parameters were studied (frequency, phase, linewidth, amplitude and noise). Furthermore, three different optimization strategies for the cardiac triggering time were tested, and finally, a comparison was made between water suppressed lipid spectra acquired in systole and diastole. RESULTS The cardiac triggering time had a high impact on the spectral quality, especially on the mean signal amplitude and the standard deviation of the signal amplitude, phase and linewidth. Generally, the highest spectral quality was observed for spectra acquired in mid to end systole, at approximately 23% of the cardiac cycle. The exact optimal triggering time differed between subjects and needed to be individually optimized. To optimize the triggering time with our proposed MRS-method gave in average 13% higher signal than when the triggering time was determined through imaging. Lipid spectra acquired in systole demonstrated higher quality with improved SNR compared with acquisitions made in diastole. CONCLUSION This study shows that the spectral quality in cardiac MRS is strongly dependent on the cardiac triggering time, and that the spectral quality as well as the repeatability between acquisitions is greatly improved when the cardiac triggering time is individually optimized in mid to end systole using MRS.
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Affiliation(s)
- Åsa Carlsson
- Department of Medical Physics and Biomedical Engineering, Sahlgrenska University Hospital, Gothenburg, Sweden; Department of Radiation Physics, Gothenburg University, Gothenburg, Sweden.
| | - Maja C Sohlin
- Department of Medical Physics and Biomedical Engineering, Sahlgrenska University Hospital, Gothenburg, Sweden; Department of Radiation Physics, Gothenburg University, Gothenburg, Sweden
| | - Kerstin M Lagerstrand
- Department of Medical Physics and Biomedical Engineering, Sahlgrenska University Hospital, Gothenburg, Sweden; Department of Radiation Physics, Gothenburg University, Gothenburg, Sweden
| | - Eva Forsell Aronsson
- Department of Medical Physics and Biomedical Engineering, Sahlgrenska University Hospital, Gothenburg, Sweden; Department of Radiation Physics, Gothenburg University, Gothenburg, Sweden
| | - Maria Ljungberg
- Department of Medical Physics and Biomedical Engineering, Sahlgrenska University Hospital, Gothenburg, Sweden; Department of Radiation Physics, Gothenburg University, Gothenburg, Sweden
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