Presentation
Epilepsy
Patient Data
Age: 10 years
Gender: Male
From the case:
Phase-encoded pulsation artifact
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It’s a 3D T1 TFE pulse sequence, the data acquired in the axial plane.
Vascular pulsation artifacts from both internal carotid arteries appear as linear structures along the phase-encoding direction. There is hippocampi involvement.
Case Discussion
Solutions to phase mismapping include:
1. Acquire 3D T1 GRE data in the sagittal plane with posterior-to-anterior phase encoding direction.
2. In the case of the axial plane acquisition, try to change the slice order direction to up-bottom.
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