Self‐gated tissue phase mapping using golden angle radial sparse SENSE

Paul, Jan; Wundrak, Stefan; Bernhardt, Peter; Rottbauer, Wolfgang; Neumann, Heiko; Rasche, Volker

doi:10.1002/mrm.25669

Cited by 10 publications

(13 citation statements)

References 37 publications

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“…A promising alternative approach could include the combination of advanced imaging acceleration (e.g. k-t undersampling, compressed sensing) with non-Cartesian k-space acquisition (31,37), which could further reduce the acquisition time and increase the applicability in patient groups with impaired breath-hold capabilities. Future studies are thus warranted to systematically assess the impact of spatial resolution, imaging acceleration and respiratory blurring on TPM results.…”

Section: Discussionmentioning

confidence: 99%

“…In this context, 2D cine phase contrast MRI with three-directional velocity encoding, termed tissue phase mapping (TPM), is a well-established technique to quantify LV regional myocardial velocities (24)(25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35)(36)(37)(38)(39)(40)(41) but has rarely been applied to the RV. In 2000, Kayser et al (6) analyzed RV wall motion with TPM for the first time, and more recently biventricular function in healthy adults (42) and adult patients with pulmonary hypertension (43) have been investigated.…”

Section: Introductionmentioning

confidence: 99%

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Impact of age and cardiac disease on regional left and right ventricular myocardial motion in healthy controls and patients with repaired tetralogy of fallot

Ruh

Sarnari

Berhane

et al. 2019

Int J Cardiovasc Imaging

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Purpose-The assessment of both left (LV) and right ventricular (RV) motion is important to understand the impact of heart disease on cardiac function. The MRI technique of tissue phase mapping (TPM) allows for the quantification of regional biventricular three-directional myocardial velocities. The goal of this study was to establish normal LV and RV velocity parameters across a wide range of pediatric to adult ages and to investigate the feasibility of TPM for detecting impaired regional biventricular function in patients with repaired tetralogy of Fallot (TOF). Methods-36 healthy controls (age=1-75 years) and 12 TOF patients (age=5-23 years) underwent cardiac MRI including TPM in short-axis locations (base, mid, apex). For ten adults, a second TPM scan was used to assess test-retest reproducibility. Data analysis included the calculation of biventricular radial, circumferential, and long-axis velocity components, quantification of systolic and diastolic peak velocities in an extended 16+10 LV+RV segment model, and assessment of inter-ventricular dyssynchrony.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impact of age and cardiac disease on regional left and right ventricular myocardial motion in healthy controls and patients with repaired tetralogy of fallot

Ruh

Sarnari

Berhane

et al. 2019

Int J Cardiovasc Imaging

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show abstract

“…A 2D golden angle UTE sequence was implemented on a 7 Tesla (T) Biospec spectrometer (Bruker, Ettlingen, Germany with Paravision 6.0). All acquisitions used a thorax‐optimized four Rx phased‐array coil (Rapid Biomedical, Rimpar, Germany) of 48 mm inner diameter .…”

Section: Methodsmentioning

confidence: 99%

Multistage self‐gated lung imaging in small rodents

Tibiletti

Kjørstad

Bianchi

et al. 2015

Magnetic Resonance in Med

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“…Image quality was quantified with image contrast and edge sharpness . Image contrast C at end‐diastole in a mid‐ventricular slice was

C = | I_{B} - I_{M} | / (I_{B} + I_{M}),

where

I_{B}

was the mean intensity of a circular region of interest (ROI) in the LV blood pool and

I_{M}

was the mean intensity of a similarly sized ROI in the LV septum.…”

Section: Methodsmentioning

confidence: 99%

“…Image quality was quantified with image contrast and edge sharpness (25). Image contrast C at end-diastole in a mid-ventricular slice was…”

Section: Image Qualitymentioning

confidence: 99%

Self-gated MRI of multiple beat morphologies in the presence of arrhythmias

et al. 2016

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Purpose Develop self-gated MRI for distinct heartbeat morphologies in subjects with arrhythmias. Methods Golden angle radial data was obtained in 7 sinus and 8 arrhythmias subjects. An image-based cardiac navigator was derived from single-shot images, distinct beat types were identified and images were reconstructed for repeated morphologies. Image sharpness, contrast and volume variation were quantified and compared to self-gated MRI. Images were scored for image quality and artifacts. Hemodynamic parameters were computed for each distinct beat morphology in bigeminy and trigeminy subjects and for sinus beats in patients with infrequent premature ventricular contractions. Results Images of distinct beat types were reconstructed except for two patients with infrequent premature ventricular contractions. Image contrast and sharpness were similar to sinus self-gated images (Contrast = 0.45±0.13 and 0.43±0.15; Sharpness = 0.21±0.11 and 0.20±0.05). Visual scoring was highest in self-gated images (4.1±0.3) compared to real-time (3.9±0.4) and ECG-gated cine (3.4±1.5). ECG-gated cine had less artifacts than self-gating (2.3±0.7 and 2.1±0.2), but was affected by misgating in two subjects. Among arrhythmia subjects, post-extrasystole/sinus (58.1 ± 8.6 mL) and interrupted sinus (61.4 ± 5.9 mL) stroke volume was higher than extrasystole (32.0 ± 16.5 mL; p<0.02). Conclusion Self-gated imaging can reconstruct images during ectopy and allowed for quantification of hemodynamic function of different beat morphologies.

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Self‐gated tissue phase mapping using golden angle radial sparse SENSE

Abstract: The combination of Golden Angle Radial Sparse SENSE with image-based self-gating allows measurement of velocities of the myocardium with superior black-blood contrast and full coverage of the cardiac cycle.

Cited by 10 publications

References 37 publications

Impact of age and cardiac disease on regional left and right ventricular myocardial motion in healthy controls and patients with repaired tetralogy of fallot

Impact of age and cardiac disease on regional left and right ventricular myocardial motion in healthy controls and patients with repaired tetralogy of fallot

Multistage self‐gated lung imaging in small rodents

Self-gated MRI of multiple beat morphologies in the presence of arrhythmias

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