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Abstract #2147

Thin Slab Pseudo-Continuous Arterial Spin Labeling

Weiying Dai1, David C. Alsop1

1Radiology, Beth Israel Deaconess Medical Center & Harvard Medical School, Boston, MA, United States

Thin slab Flow-sensitive alternating inversion recovery (FAIR) arterial spin labeling (ASL) can be advantageous when the geometry or transit delay of the arterial supply is not known, but FAIR has reduced signal compared to continuous labeling methods. Here, a modification of pseudo-continuous labeling that achieves labeling very close to both sides of a slice is presented. Labeling RF is applied centered on the slab and labeling planes on both sides of the slice are created. The performance of this approach is evaluated in single slice perfusion imaging of the brain.