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Abstract #4877

Multi-Tag Time-SLIP Simulation Beyond the General Kinetic Model

Vadim Malis1 and Mitsue Miyazaki2
1Radiology, UC San Diego, La Joll, CA, United States, 2Radiology, UC San Diego, La Jolla, CA, United States

Synopsis

Keywords: Arterial Spin Labelling, Arterial spin labelling, Simulation

Motivation: We identified a gap in understanding multi-tag Time-SLIP MRI dynamics, crucial for advanced perfusion analysis, particularly in varying physiological and pathological states.

Goal(s): Our goal was to develop a comprehensive simulation tool to accurately predict signal changes in multi-tag Time-SLIP ASL MRI across diverse flow conditions.

Approach: We employed MATLAB to simulate numerically non-selective and selective multi-tag Time-SLIP pulse sequences, applying Bloch equations to model tissue-specific magnetization and blood flow perfusion dynamics.

Results: Simulations showed distinct magnetization patterns between odd and even pulse tags, aligning with physiological flow rates.

Impact: This simulation tool enables researchers to customize Time-SLIP MRI protocols for detailed study of fluid dynamics across the body, from blood to CSF flow. It provides a solid foundation for developing more comprehensive ASL-related simulations.

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