Motion in Cardiovascular MR Imaging

Scott, Andrew D.; Keegan, Jennifer; Firmin, David N.

doi:10.1148/radiol.2502071998

Cited by 141 publications

(139 citation statements)

References 172 publications

(176 reference statements)

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“…At rest, the heart beats between 50 and 100 times per minute; 1 this is normally the fastest movement that MRI has to account for. If not compensated for, it creates significant motion artifacts that lead to cardiac MR images with limited diagnostic value.…”

Section: B the Beating Heartmentioning

confidence: 99%

Motion Compensation Strategies in Magnetic Resonance Imaging

Heeswijk

Bonanno

Coppo

et al. 2012

Crit Rev Biomed Eng

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Image quality in magnetic resonance imaging (MRI) is considerably affected by motion. Therefore, motion is one of the most common sources of artifacts in contemporary cardiovascular MRI. Such artifacts in turn may easily lead to misinterpretations in the images and a subsequent loss in diagnostic quality. Hence, there is considerable research interest in strategies that help to overcome these limitations at minimal cost in time, spatial resolution, temporal resolution, and signal-to-noise ratio. This review summarizes and discusses the three principal sources of motion: the beating heart, the breathing lungs, and bulk patient movement. This is followed by a comprehensive overview of commonly used compensation strategies for these different types of motion. Finally, a summary and an outlook are provided.

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Section: B the Beating Heartmentioning

confidence: 99%

Motion Compensation Strategies in Magnetic Resonance Imaging

Heeswijk

Bonanno

Coppo

et al. 2012

Crit Rev Biomed Eng

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“…Although three-dimensional imaging provides larger volumetric coverage, it requires sophisticated planning for successful blood nulling and prohibitively prolonged imaging times to achieve the necessary high spatial resolution with a greater risk of degraded image quality (13). Thus, the convenience of two-dimensional coronary vessel wall imaging and its relatively faster imaging time compared with three-dimensional imaging has led to its widespread use in clinical studies (2,6,14).…”

Section: Cardiac Imaging: Coronary Vessel Wall 30-t Mr Imagingmentioning

confidence: 99%

Coronary Vessel Wall 3-T MR Imaging with Time-resolved Acquisition of Phase-Sensitive Dual Inversion-Recovery (TRAPD) Technique: Initial Results in Patients with Risk Factors for Coronary Artery Disease

Abd‐Elmoniem

Gharib²,

Pettigrew³

2012

Radiology

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Purpose:To develop a technique for time-resolved acquisition of phasesensitive dual-inversion recovery (TRAPD) coronary vessel wall magnetic resonance (MR) images, to investigate the success rate in coronary wall imaging compared with that of single-frame imaging, and to assess vessel wall thickness in healthy subjects and subjects with risk factors for coronary artery disease (CAD). Materials andMethods:Thirty-eight subjects (12 healthy subjects, 26 subjects with at least one CAD risk factor) provided informed consent for participation in this institutional review board-approved and HIPAA-compliant study. The TRAPD coronary vessel wall imaging sequence was developed and validated with a flow phantom. Time-resolved coronary artery wall images at three to five cine phases were obtained in all subjects. Qualitative and quantitative comparisons were made between TRAPD and conventional single-image wall measurements. Measurement reproducibility also was assessed. Statistical analysis was performed for all comparisons. Results:The TRAPD sequence successfully restored the negative polarity of lumen signal and enhanced lumen wall contrast on the cine images of the flow phantom and in all subjects. Use of three to five frames increased the success rate of acquiring at least one image of good to excellent quality from 76% in single-image acquisitions to 95% with the TRAPD sequence. The difference in vessel wall thickness between healthy subjects and subjects with CAD risk factors was significant (P , .05) with the TRAPD sequence (1.07 vs 1.46 mm, respectively; 36% increase) compared with single-frame dual inversion-recovery imaging (1.24 vs 1.55 mm, respectively; 25% increase). Intraobserver, interobserver, and interexamination agreement for wall thickness measurement were 0.98, 0.97, and 0.92, respectively. Conclusion:TRAPD imaging of coronary arteries improved arterial wall visualization and quantitative assessment by increasing the success rate of obtaining good-to excellent-quality images and sections orthogonal to the longitudinal axis of the vessel. This also resulted in vessel wall thickness measurements that show a more distinct difference between healthy subjects and those with CAD risk factors.q RSNA, 2012 Supplemental material: http://radiology.rsna.org/lookup /suppl

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“…To overcome this problem of motion artifacts and distorted images, a variety of techniques have been developed to date that speed up scanning acquisition times for MRI, and/or involve the use of temporal or spatiotemporal redundancy [10][11][12][13][14]. In general, the key principle underlying scan acceleration is based on the presence of quasi-periodic motion components.…”

Section: Motion Compensation Scheme For Cardiac Imaging In Mri and Lsmmentioning

confidence: 99%

“…To date, various motion reduction methods have been developed for magnetic resonance imaging (MRI), particularly for high resolution cardiac MRI [10,11]. While the basic imaging principles of MRI and optical microscopy are different, the principles of image stabilization are adaptable to both techniques.…”

Section: Introductionmentioning

confidence: 99%

Sequential average segmented microscopy for high signal-to-noise ratio motion-artifact-free in vivo heart imaging

Vinegoni

Lee

Feruglio

et al. 2013

Biomed. Opt. Express

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Abstract:In vivo imaging is often severely compromised by cardiovascular and respiratory motion. Highly successful motion compensation techniques have been developed for clinical imaging (e.g. magnetic resonance imaging) but the use of more advanced techniques for intravital microscopy is largely unexplored. Here, we implement a sequential cardiorespiratory gating scheme (SCG) for averaged microscopy. We show that SCG is very efficient in eliminating motion artifacts, is highly practical, enables high signal-to-noise ratio (SNR) in vivo imaging, and yields large field of views. The technique is particularly useful for high-speed data acquisition or for imaging scenarios where the fluorescence signal is not significantly above noise or background levels. 12. D. J. Atkinson and R. R. Edelman, "Cineangiography of the heart in a single breath hold with a segmented turboFLASH sequence," Radiology 178(2), 357-360 (1991). 13. J. P. Finn and R. R. Edelman, "Black-blood and segmented k-space magnetic resonance angiography," Magn.

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Motion in Cardiovascular MR Imaging

Cited by 141 publications

References 172 publications

Motion Compensation Strategies in Magnetic Resonance Imaging

Motion Compensation Strategies in Magnetic Resonance Imaging

Coronary Vessel Wall 3-T MR Imaging with Time-resolved Acquisition of Phase-Sensitive Dual Inversion-Recovery (TRAPD) Technique: Initial Results in Patients with Risk Factors for Coronary Artery Disease

Sequential average segmented microscopy for high signal-to-noise ratio motion-artifact-free in vivo heart imaging

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