A three-dimensional T1 mapping imaging method for realizing magnetic resonance full kidney coverage
By combining adiabatic nonselective inversion pulses and multiple three-dimensional equilibrium steady-state free precession readouts with Bloch simulation dictionary matching, the problems of multiple breath-holds and long scanning times in the diagnosis of kidney diseases in existing technologies are solved, and efficient and accurate three-dimensional T1 mapping imaging of the whole kidney is achieved.
Patent Information
- Application Number
- CN202610474023.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-11
- Publication Date
- 2026-07-17
AI Technical Summary
In the diagnosis of kidney diseases, existing technologies such as three-dimensional T1 mapping imaging require multiple breath-holdings, resulting in low patient comfort and spatial misalignment. Furthermore, the scanning time of IR magnetization-based methods is too long, making it difficult to achieve efficient full kidney coverage.
A combination of adiabatic nonselective inversion pulses and multiple three-dimensional equilibrium steady-state free precession readouts was used to generate multiple T1-weighted images. Voxel-by-voxel matching was performed using a dictionary generated by Bloch simulation to achieve high-resolution three-dimensional T1 mapping imaging of the whole kidney.
It achieves high-resolution three-dimensional T1 mapping covering the entire kidney within two breath-holds, reduces estimation bias caused by T2 relaxation, improves the accuracy of quantitative T1, and simplifies the operation process.
Smart Images
Figure CN122398260A_ABST