Dataset Information

SPRING-RIO TSE: 2D T₂ -Weighted Turbo Spin-Echo brain imaging using SPiral RINGs with retraced in/out trajectories.

ABSTRACT:

Purpose

To develop a new approach to 2D turbo spin -echo (TSE) imaging using annular spiral rings with a retraced in/out trajectory, dubbed "SPRING-RIO TSE", for fast T₂ -weighted brain imaging at 3T.

Methods

A long spiral trajectory was split into annular segmentations that were then incorporated into a 2D TSE acquisition module to fully exploit the sampling efficiency of spiral rings. A retraced in/out trajectory strategy coupled with spiral-ring TSE was introduced to increase SNR, mitigate T₂ -decay induced artifacts, and self-correct moderate off-resonance while maintaining the target TE and causing no scan time penalty. Model-based k-space estimation and semiautomatic off-resonance correction algorithms were implemented to minimize effects of k-space trajectory infidelity and B₀ inhomogeneity, respectively. The resulting SPRING-RIO TSE method was compared to the original spiral-ring (abbreviated "SPRING") TSE and Cartesian TSE using simulations, and phantom and in vivo acquisitions.

Results

Simulation and phantom studies demonstrated the performance of the proposed SPRING-RIO TSE pulses sequence, as well as that of trajectory correction and off-resonance correction. Volunteer data showed that the proposed method achieves high-quality 2D T₂ -weighted brain imaging with a higher scan efficiency (0:45 min/14 slices versus 1:31 min/14 slices), improved image contrast, and reduced specific absorption rate compared to conventional 2D Cartesian TSE.

Conclusion

2D T₂ -weighted brain imaging using spiral-ring TSE was implemented and tested, providing several potential advantages over conventional 2D Cartesian TSE imaging.

SUBMITTER: Wang Z

PROVIDER: S-EPMC9232877 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

SPRING-RIO TSE: 2D T<sub>2</sub> -Weighted Turbo Spin-Echo brain imaging using SPiral RINGs with retraced in/out trajectories.

Wang Zhixing Z Allen Steven P SP Feng Xue X Mugler John P JP Meyer Craig H CH

Magnetic resonance in medicine 20220408 2

<h4>Purpose</h4>To develop a new approach to 2D turbo spin -echo (TSE) imaging using annular spiral rings with a retraced in/out trajectory, dubbed "SPRING-RIO TSE", for fast T<sub>2</sub> -weighted brain imaging at 3T.<h4>Methods</h4>A long spiral trajectory was split into annular segmentations that were then incorporated into a 2D TSE acquisition module to fully exploit the sampling efficiency of spiral rings. A retraced in/out trajectory strategy coupled with spiral-ring TSE was introduced to ...[more]

PMID: 35394088

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Dataset Information

SPRING-RIO TSE: 2D T₂ -Weighted Turbo Spin-Echo brain imaging using SPiral RINGs with retraced in/out trajectories.

Purpose

Methods

Results

Conclusion

Publications

SPRING-RIO TSE: 2D T<sub>2</sub> -Weighted Turbo Spin-Echo brain imaging using SPiral RINGs with retraced in/out trajectories.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets

Dataset Information

SPRING-RIO TSE: 2D T2 -Weighted Turbo Spin-Echo brain imaging using SPiral RINGs with retraced in/out trajectories.

Purpose

Methods

Results

Conclusion

Publications

SPRING-RIO TSE: 2D T<sub>2</sub> -Weighted Turbo Spin-Echo brain imaging using SPiral RINGs with retraced in/out trajectories.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets

SPRING-RIO TSE: 2D T₂ -Weighted Turbo Spin-Echo brain imaging using SPiral RINGs with retraced in/out trajectories.