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Zhu J, Bornstedt A, Merkle N, Liu N, Rottbauer W, Ma G, Rasche V. T2-prepared segmented 3D-gradient-echo for fast T2-weighted high-resolution three-dimensional imaging of the carotid artery wall at 3T: a feasibility study. Biomed Eng Online 2016; 15:165. [PMID: 28155713 PMCID: PMC5259811 DOI: 10.1186/s12938-016-0276-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023] Open
Abstract
BACKGROUND The multi-contrast assessment of the carotid artery wall has become an important diagnostic tool for the characterization of atherosclerotic plaque and vessel wall thickening. For providing the required T1-, T2-, and proton density weighted contrast, multi-slice turbo spin echo (TSE) techniques are normally applied. The straightforward extension of the TSE techniques to volumetric imaging of large sections of the carotid arteries is limited by the resulting long acquisition times. Where the acquisition of a T1-weighted contrast can be accelerated by applying a T1-weighted fast gradient echo technique, acceleration of the T2-weighted contrast is not as straightforward. METHODS In this work, the combination of a T2 preparation and a conventional fast gradient echo technique (T2P-3DGE) was evaluated for rapid acquisition of a T2-weighted image contrast. Acquisition parameters were optimized in an initial in vitro study in direct comparison to the conventional T2-weighted TSE (T2W-3DTSE) technique. Subsequently, the T2P-3DGE technique was evaluated in vivo. RESULTS In direct comparison, the T2P-3DGE sequence provided similar T2 contrast as the respective T2W-3DTSE sequence. After correction of an observed intensity offset, most likely caused by the additional T1-weighting of the T2P-3DGE sequence, no significant difference between the two T2-weighted sequences were observed in phantom data. The good correlation of the image contrast between the two sequences was confirmed in the initial in-vivo study, proving a potential reduction of the scan time for T2P-3DGE to 25% of the respective T2W-3DTSE technique. CONCLUSION The in vitro as well as the in vivo results clearly indicate the potential of the T2P-3DGE technique for providing similar T2 image contrast as in the conventional techniques. Thereby, the acquisition times could be substantially reduced to about 25% of the respective 3D-TSE technique.
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Affiliation(s)
- Jian Zhu
- Department of Cardiology, Zhongda Hospital, Southeast University, Nanjing, China.,Department of Internal Medicine II, University Hospital of Ulm, Ulm, Germany
| | - Axel Bornstedt
- Department of Internal Medicine II, University Hospital of Ulm, Ulm, Germany
| | - Nico Merkle
- Department of Internal Medicine II, University Hospital of Ulm, Ulm, Germany
| | - Naifeng Liu
- Department of Cardiology, Zhongda Hospital, Southeast University, Nanjing, China
| | - Wolfgang Rottbauer
- Department of Internal Medicine II, University Hospital of Ulm, Ulm, Germany
| | - Genshan Ma
- Department of Cardiology, Zhongda Hospital, Southeast University, Nanjing, China.
| | - Volker Rasche
- Department of Internal Medicine II, University Hospital of Ulm, Ulm, Germany.
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Zhou Z, Li R, Zhao X, He L, Wang X, Wang J, Balu N, Yuan C. Evaluation of 3D multi-contrast joint intra- and extracranial vessel wall cardiovascular magnetic resonance. J Cardiovasc Magn Reson 2015; 17:41. [PMID: 26013973 PMCID: PMC4446075 DOI: 10.1186/s12968-015-0143-z] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 05/01/2015] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Multi-contrast vessel wall cardiovascular magnetic resonance (CMR) has demonstrated its capability for atherosclerotic plaque morphology measurement and component characterization in different vasculatures. However, limited coverage and partial volume effect with conventional two-dimensional (2D) techniques might cause lesion underestimation. The aim of this work is to evaluate the performance in a) blood suppression and b) vessel wall delineation of three-dimensional (3D) multi-contrast joint intra- and extracranial vessel wall imaging at 3T. METHODS Three multi-contrast 3D black blood (BB) sequences with T1, T2 and heavy T1 weighting and a custom designed 36-channel neurovascular coil covering the entire intra- and extracranial vasculature have been used and investigated in this study. Two healthy subjects were recruited for sequence parameter optimization and twenty-five patients were consecutively scanned for image quality and blood suppression assessment. Qualitative image scores of vessel wall delineation as well as quantitative Signal-to-Noise Ratio (SNR) and Contrast-to-Noise Ratio (CNR) were evaluated at five typical locations ranging from common carotid arteries to middle cerebral arteries. RESULTS The 3D multi-contrast images acquired within 15mins allowed the vessel wall visualization with 0.8 mm isotropic spatial resolution covering intra- and extracranial segments. Quantitative wall and lumen SNR measurements for each sequence showed effective blood suppression at all selected locations (P < 0.0001). Although the wall-lumen CNR varied across measured locations, each sequence provided good or adequate image quality in both intra- and extracranial segments. CONCLUSIONS The proposed 3D multi-contrast vessel wall technique provides isotropic resolution and time efficient solution for joint intra- and extracranial vessel wall CMR.
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Affiliation(s)
- Zechen Zhou
- Center for Biomedical Imaging Research, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China.
| | - Rui Li
- Center for Biomedical Imaging Research, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China.
| | - Xihai Zhao
- Center for Biomedical Imaging Research, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China.
| | - Le He
- Center for Biomedical Imaging Research, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China.
| | - Xiaole Wang
- Department of Biomedical Engineering, Tsinghua University, Beijing, China.
| | - Jinnan Wang
- Department of Radiology, University of Washington, Seattle, WA, USA.
- Philips Research North America, Briarcliff Manor, NY, USA.
| | - Niranjan Balu
- Department of Radiology, University of Washington, Seattle, WA, USA.
| | - Chun Yuan
- Center for Biomedical Imaging Research, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China.
- Department of Radiology, University of Washington, Seattle, WA, USA.
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McNally JS, Kim SE, Yoon HC, Findeiss LK, Roberts JA, Nightingale DR, Narra KK, Parker DL, Treiman GS. Carotid Magnetization-Prepared Rapid Acquisition With Gradient-Echo Signal Is Associated With Acute Territorial Cerebral Ischemic Events Detected by Diffusion-Weighted MRI. Circ Cardiovasc Imaging 2012; 5:376-82. [PMID: 22495769 DOI: 10.1161/circimaging.111.967398] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Background—
Carotid intraplaque hemorrhage has been associated with symptomatic stroke and can be accurately detected with magnetization-prepared rapid acquisition with gradient-echo (MPRAGE). Currently, there are no studies analyzing carotid MPRAGE signal and territorial ischemic events defined by diffusion restriction in the acute setting. Our aim was to determine the association of carotid MPRAGE signal with acute territorial ischemic events using carotid MPRAGE and brain diffusion tensor imaging.
Methods and Results—
After the addition of the MPRAGE sequence to the neck MR angiographic protocol, 159 patients with suspected acute stroke were evaluated with both brain diffusion tensor imaging and carotid MPRAGE sequences over 2 years, providing 318 carotid artery and paired brain images for analysis. Forty-eight arteries were excluded due to extracarotid sources of brain ischemia and 4 were excluded due to carotid occlusion. Two hundred sixty-six arteries were eligible for data analysis. Carotid MPRAGE-positive signal was associated with an acute cerebral territorial ischemic event with a relative risk of 6.4 (
P
<0.001). The relative risk of a diffusion tensor imaging-positive territorial ischemic event with carotid MPRAGE-positive signal was increased in mild, moderate, and severe stenosis categories (10.3,
P
<0.001; 2.9,
P
=0.01; and 2.2,
P
=0.01, respectively).
Conclusions—
In the workup of acute stroke, carotid MPRAGE-positive signal was associated with an increased risk of territorial cerebral ischemic events as detected objectively by brain diffusion tensor imaging. The relative risk of stroke was increased in all carotid stenosis categories but was most elevated in the mild stenosis category.
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Affiliation(s)
- J. Scott McNally
- From the Department of Radiology, Utah Center for Advanced Imaging Research, University of Utah School of Medicine, Salt Lake City, UT (J.S.M., S.-E.K., J.A.R., D.L.P., G.S.T.); the Department of Diagnostic Imaging, Kaiser Permanente, Honolulu, HI (H.-C.Y.); the Department of Radiology, University of California, Irvine, CA (L.K.F.); the Departments of Pathology and Surgery, VA Salt Lake City Health Care System, Salt Lake City, UT (D.R.N., G.S.T.); and the Departments of Pathology and Surgery,
| | - Seong-Eun Kim
- From the Department of Radiology, Utah Center for Advanced Imaging Research, University of Utah School of Medicine, Salt Lake City, UT (J.S.M., S.-E.K., J.A.R., D.L.P., G.S.T.); the Department of Diagnostic Imaging, Kaiser Permanente, Honolulu, HI (H.-C.Y.); the Department of Radiology, University of California, Irvine, CA (L.K.F.); the Departments of Pathology and Surgery, VA Salt Lake City Health Care System, Salt Lake City, UT (D.R.N., G.S.T.); and the Departments of Pathology and Surgery,
| | - Hyo-Chun Yoon
- From the Department of Radiology, Utah Center for Advanced Imaging Research, University of Utah School of Medicine, Salt Lake City, UT (J.S.M., S.-E.K., J.A.R., D.L.P., G.S.T.); the Department of Diagnostic Imaging, Kaiser Permanente, Honolulu, HI (H.-C.Y.); the Department of Radiology, University of California, Irvine, CA (L.K.F.); the Departments of Pathology and Surgery, VA Salt Lake City Health Care System, Salt Lake City, UT (D.R.N., G.S.T.); and the Departments of Pathology and Surgery,
| | - Laura K. Findeiss
- From the Department of Radiology, Utah Center for Advanced Imaging Research, University of Utah School of Medicine, Salt Lake City, UT (J.S.M., S.-E.K., J.A.R., D.L.P., G.S.T.); the Department of Diagnostic Imaging, Kaiser Permanente, Honolulu, HI (H.-C.Y.); the Department of Radiology, University of California, Irvine, CA (L.K.F.); the Departments of Pathology and Surgery, VA Salt Lake City Health Care System, Salt Lake City, UT (D.R.N., G.S.T.); and the Departments of Pathology and Surgery,
| | - John A. Roberts
- From the Department of Radiology, Utah Center for Advanced Imaging Research, University of Utah School of Medicine, Salt Lake City, UT (J.S.M., S.-E.K., J.A.R., D.L.P., G.S.T.); the Department of Diagnostic Imaging, Kaiser Permanente, Honolulu, HI (H.-C.Y.); the Department of Radiology, University of California, Irvine, CA (L.K.F.); the Departments of Pathology and Surgery, VA Salt Lake City Health Care System, Salt Lake City, UT (D.R.N., G.S.T.); and the Departments of Pathology and Surgery,
| | - Daniel R. Nightingale
- From the Department of Radiology, Utah Center for Advanced Imaging Research, University of Utah School of Medicine, Salt Lake City, UT (J.S.M., S.-E.K., J.A.R., D.L.P., G.S.T.); the Department of Diagnostic Imaging, Kaiser Permanente, Honolulu, HI (H.-C.Y.); the Department of Radiology, University of California, Irvine, CA (L.K.F.); the Departments of Pathology and Surgery, VA Salt Lake City Health Care System, Salt Lake City, UT (D.R.N., G.S.T.); and the Departments of Pathology and Surgery,
| | - Krishna K. Narra
- From the Department of Radiology, Utah Center for Advanced Imaging Research, University of Utah School of Medicine, Salt Lake City, UT (J.S.M., S.-E.K., J.A.R., D.L.P., G.S.T.); the Department of Diagnostic Imaging, Kaiser Permanente, Honolulu, HI (H.-C.Y.); the Department of Radiology, University of California, Irvine, CA (L.K.F.); the Departments of Pathology and Surgery, VA Salt Lake City Health Care System, Salt Lake City, UT (D.R.N., G.S.T.); and the Departments of Pathology and Surgery,
| | - Dennis L. Parker
- From the Department of Radiology, Utah Center for Advanced Imaging Research, University of Utah School of Medicine, Salt Lake City, UT (J.S.M., S.-E.K., J.A.R., D.L.P., G.S.T.); the Department of Diagnostic Imaging, Kaiser Permanente, Honolulu, HI (H.-C.Y.); the Department of Radiology, University of California, Irvine, CA (L.K.F.); the Departments of Pathology and Surgery, VA Salt Lake City Health Care System, Salt Lake City, UT (D.R.N., G.S.T.); and the Departments of Pathology and Surgery,
| | - Gerald S. Treiman
- From the Department of Radiology, Utah Center for Advanced Imaging Research, University of Utah School of Medicine, Salt Lake City, UT (J.S.M., S.-E.K., J.A.R., D.L.P., G.S.T.); the Department of Diagnostic Imaging, Kaiser Permanente, Honolulu, HI (H.-C.Y.); the Department of Radiology, University of California, Irvine, CA (L.K.F.); the Departments of Pathology and Surgery, VA Salt Lake City Health Care System, Salt Lake City, UT (D.R.N., G.S.T.); and the Departments of Pathology and Surgery,
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Pennell DJ, Firmin DN, Kilner PJ, Manning WJ, Mohiaddin RH, Prasad SK. Review of journal of cardiovascular magnetic resonance 2010. J Cardiovasc Magn Reson 2011; 13:48. [PMID: 21914185 PMCID: PMC3182946 DOI: 10.1186/1532-429x-13-48] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2011] [Accepted: 09/13/2011] [Indexed: 12/15/2022] Open
Abstract
There were 75 articles published in the Journal of Cardiovascular Magnetic Resonance (JCMR) in 2010, which is a 34% increase in the number of articles since 2009. The quality of the submissions continues to increase, and the editors were delighted with the recent announcement of the JCMR Impact Factor of 4.33 which showed a 90% increase since last year. Our acceptance rate is approximately 30%, but has been falling as the number of articles being submitted has been increasing. In accordance with Open-Access publishing, the JCMR articles go on-line as they are accepted with no collating of the articles into sections or special thematic issues. Last year for the first time, the Editors summarized the papers for the readership into broad areas of interest or theme, which we felt would be useful to practitioners of cardiovascular magnetic resonance (CMR) so that you could review areas of interest from the previous year in a single article in relation to each other and other recent JCMR articles 1. This experiment proved very popular with a very high rate of downloading, and therefore we intend to continue this review annually. The papers are presented in themes and comparison is drawn with previously published JCMR papers to identify the continuity of thought and publication in the journal. We hope that you find the open-access system increases wider reading and citation of your papers, and that you will continue to send your quality manuscripts to JCMR for publication.
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Affiliation(s)
- Dudley J Pennell
- CMR Unit Royal Brompton Hospital, Sydney Street, London SW3 6NP, UK
- National Heart and Lung Institute, Imperial College, Exhibition Road, London, SW7 2AZ, UK
| | - David N Firmin
- CMR Unit Royal Brompton Hospital, Sydney Street, London SW3 6NP, UK
- National Heart and Lung Institute, Imperial College, Exhibition Road, London, SW7 2AZ, UK
| | - Philip J Kilner
- CMR Unit Royal Brompton Hospital, Sydney Street, London SW3 6NP, UK
- National Heart and Lung Institute, Imperial College, Exhibition Road, London, SW7 2AZ, UK
| | - Warren J Manning
- Department of Medicine (Cardiovascular Division) and Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02215 USA
- Harvard Medical School, 25 Shattuck Street, Boston, MA 02115 USA
| | - Raad H Mohiaddin
- CMR Unit Royal Brompton Hospital, Sydney Street, London SW3 6NP, UK
- National Heart and Lung Institute, Imperial College, Exhibition Road, London, SW7 2AZ, UK
| | - Sanjay K Prasad
- CMR Unit Royal Brompton Hospital, Sydney Street, London SW3 6NP, UK
- National Heart and Lung Institute, Imperial College, Exhibition Road, London, SW7 2AZ, UK
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Pennell DJ, Firmin DN, Kilner PJ, Manning WJ, Mohiaddin RH, Neubauer S, Prasad SK. Review of Journal of Cardiovascular Magnetic Resonance 2009. J Cardiovasc Magn Reson 2010; 12:15. [PMID: 20302618 PMCID: PMC2847562 DOI: 10.1186/1532-429x-12-15] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2010] [Accepted: 03/19/2010] [Indexed: 11/10/2022] Open
Abstract
There were 56 articles published in the Journal of Cardiovascular Magnetic Resonance in 2009. The editors were impressed with the high quality of the submissions, of which our acceptance rate was about 40%. In accordance with open-access publishing, the articles go on-line as they are accepted with no collating of the articles into sections or special thematic issues. We have therefore chosen to briefly summarise the papers in this article for quick reference for our readers in broad areas of interest, which we feel will be useful to practitioners of cardiovascular magnetic resonance (CMR). In some cases where it is considered useful, the articles are also put into the wider context with a short narrative and recent CMR references. It has been a privilege to serve as the Editor of the JCMR this past year. I hope that you find the open-access system increases wider reading and citation of your papers, and that you will continue to send your quality manuscripts to JCMR for publication.
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Affiliation(s)
- DJ Pennell
- CMR Unit Royal Brompton Hospital, Sydney Street, London SW3 6NP UK. National Heart and Lung Institute, Imperial College, Exhibition Road, London, SW7 2AZ UK
| | - DN Firmin
- CMR Unit Royal Brompton Hospital, Sydney Street, London SW3 6NP UK. National Heart and Lung Institute, Imperial College, Exhibition Road, London, SW7 2AZ UK
| | - PJ Kilner
- CMR Unit Royal Brompton Hospital, Sydney Street, London SW3 6NP UK. National Heart and Lung Institute, Imperial College, Exhibition Road, London, SW7 2AZ UK
| | - WJ Manning
- Departments of Medicine (Cardiovascular Division) and Radiology, Beth Israel Deaconess Medical Center 330 Brookline Avenue, Boston, MA 02215 USA. Harvard Medical School, 25 Shattuck Street Boston, MA 02115 USA
| | - RH Mohiaddin
- CMR Unit Royal Brompton Hospital, Sydney Street, London SW3 6NP UK. National Heart and Lung Institute, Imperial College, Exhibition Road, London, SW7 2AZ UK
| | - S Neubauer
- Department of Cardiovascular Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - SK Prasad
- CMR Unit Royal Brompton Hospital, Sydney Street, London SW3 6NP UK. National Heart and Lung Institute, Imperial College, Exhibition Road, London, SW7 2AZ UK
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