Respiratory and cardiac self‐gated free‐breathing cardiac CINE imaging with multiecho 3D hybrid radial SSFP acquisition

Liu, Jing; Spincemaille, Pascal; Codella, Noel; Nguyen, Thanh D.; Prince, Martin R.; Wang, Yi

doi:10.1002/mrm.22306

Cited by 116 publications

(174 citation statements)

References 31 publications

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“…This is because: (I) there is an inherent delay between the electrical signal and the actual myocardial motion in which the electrical signal always comes first; (II) current self-gating trigger detection algorithm is based on finding the signal peak and thus tends to trigger on end-systole instead of end-diastole as the ECG R-wave based algorithm. A similar shift is also reported in other self-gating methods (23,24).…”

Section: Discussionsupporting

confidence: 88%

Prospective cardiac motion self-gating

Han¹,

Rapacchi²,

Hu³

2017

Quant. Imaging Med. Surg.

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Background: To develop a prospective cardiac motion self-gating method that provides robust and accurate cardiac triggers in real time.Methods: The proposed self-gating method consists of an "imaging mode" that acquires the k-space segments and a "self-gating mode" that captures the cardiac motion by repeatedly sampling the k-space centerline. A training based principal component analysis algorithm is utilized to process the self-gating data where the projection onto the first principal component was used as the self-gating signal. Retrospective studies using a sequence with self-gating mode only was performed on 8 healthy subjects to validate the accuracy and reliability of the self-gating triggers. Prospective studies using both ECG-gated and self-gated cardiac CINE sequences were conducted on 6 healthy subjects to compare the image quality.Results: Using the ECG as the reference, the proposed method was able to detect self-gating triggers within ±10 ms accuracy on all 8 subjects in the retrospective study. The prospectively self-gated CINE sequence successfully detected 100% of the cardiac triggers and provided excellent CINE image quality without using ECG signals. Conclusions:The proposed cardiac self-gating method is a robust and accurate alternative to conventional ECG-based gating method for a number of cardiac MRI applications.

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Section: Discussionsupporting

confidence: 88%

Prospective cardiac motion self-gating

Han¹,

Rapacchi²,

Hu³

2017

Quant. Imaging Med. Surg.

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“…In more recent techniques, motion data for both respiratory gating and cardiac triggering can be extracted by filtering a self-gating projection because cardiac and respiratory motion have different temporal frequency ranges and information content (Figure 6). These methods have been used for 2-dimensional 67 and 3D cine imaging 68 and 4-dimensional whole-heart coronary MRA. 59 An alternative approach is to resolve cardiac and respiratory motion using a CS technique, such as XD-GRASP, as described earlier.…”

Section: Recent Developments In Non-breath-hold and Non-ecg-gated Cmrmentioning

confidence: 99%

Recent Advances in Cardiovascular Magnetic Resonance

Salerno

Sharif

Arheden³

et al. 2017

Circ: Cardiovascular Imaging

148

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Cardiovascular magnetic resonance imaging has become the gold standard for evaluating myocardial function, volumes, and scarring. Additionally, cardiovascular magnetic resonance imaging is unique in its comprehensive tissue characterization, including assessment of myocardial edema, myocardial siderosis, myocardial perfusion, and diffuse myocardial fibrosis. Cardiovascular magnetic resonance imaging has become an indispensable tool in the evaluation of congenital heart disease, heart failure, cardiac masses, pericardial disease, and coronary artery disease. This review will highlight some recent novel cardiovascular magnetic resonance imaging techniques, concepts, and applications.

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“…Examples of self-gated 3D non-Cartesian trajectories include 3D spiral phyllotaxis [17], [18], 3D Projection Reconstruction (PR) [19] and 3D stack of stars golden radial trajectory [20], [21]. For better signal contrast between blood and myocardium, especially required for coronary imaging, preparation pulses and fat saturation pulses are interspersed in the data acquisition [17], [18], [19].…”

Section: Introductionmentioning

confidence: 99%

Free breathing whole-heart 3D CINE MRI with self-gated Cartesian trajectory

Usman

Ruijsink

Nazir

et al. 2017

Magnetic Resonance Imaging

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PurposeTo present a method that uses a novel free-running self-gated acquisition to achieve isotropic resolution in whole heart 3D Cartesian cardiac CINE MRI.Material and methods3D cardiac CINE MRI using navigator gating results in long acquisition times. Recently, several frameworks based on self-gated non-Cartesian trajectories have been proposed to accelerate this acquisition. However, non-Cartesian reconstructions are computationally expensive due to gridding, particularly in 3D. In this work, we propose a novel highly efficient self-gated Cartesian approach for 3D cardiac CINE MRI. Acquisition is performed using CArtesian trajectory with Spiral PRofile ordering and Tiny golden angle step for eddy current reduction (so called here CASPR-Tiger). Data is acquired continuously under free breathing (retrospective ECG gating, no preparation pulses interruption) for 4–5 min and 4D whole-heart volumes (3D + cardiac phases) with isotropic spatial resolution are reconstructed from all available data using a soft gating technique combined with temporal total variation (TV) constrained iterative SENSE reconstruction.ResultsFor data acquired on eight healthy subjects and three patients, the reconstructed images using the proposed method had good contrast and spatio-temporal variations, correctly recovering diastolic and systolic cardiac phases. Non-significant differences (P > 0.05) were observed in cardiac functional measurements obtained with proposed 3D approach and gold standard 2D multi-slice breath-hold acquisition.ConclusionThe proposed approach enables isotropic 3D whole heart Cartesian cardiac CINE MRI in 4 to 5 min free breathing acquisition.

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Respiratory and cardiac self‐gated free‐breathing cardiac CINE imaging with multiecho 3D hybrid radial SSFP acquisition

Cited by 116 publications

References 31 publications

Prospective cardiac motion self-gating

Prospective cardiac motion self-gating

Recent Advances in Cardiovascular Magnetic Resonance

Free breathing whole-heart 3D CINE MRI with self-gated Cartesian trajectory

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