REPLICABILITY OF CEREBRAL PERFUSION WITH DIFFERENT ARTERIAL SPIN LABELLING METHODS
ZHE HAN TOH1, WENG HANG WONG1, QING LONG GU1, KAI-HSIANG CHUANG2, KUAN-JIN LEE2, JULIAN GAN3, and PHUA HWEE TANG1
1Department of Diagnostic and Interventional Imaging, KK WOMEN'S AND CHILDREN'S HOSPITAL, SINGAPORE, Singapore, 2Singapore Bio-Imaging Consortium, A*STAR, SINGAPORE, Singapore, 3Siemens Healthcare, Regional Headquarter, SINGAPORE, Singapore
We compared 3
versions of Arterial Spin Labelling (ASL) available ( single-TI 3D-PASL,
multi-TI 3D-PASL and 2D-pCASL) on 3T Siemens MRI scanner Skyra in 10 normal healthy adults with normal body
mass index (BMI) at 3 different time points (baseline, 1 week later, 2 to 3
month later). There was good
replicability of all 3 ASL techniques (correlation coefficients range from 0.55
to 0.77). Values acquired with these ASL techniques agree with the published
normal range of cerebral blood flow values in adults. There is no significant difference in the CBF
obtained with single-TI 3D-PASL, multi-TI 3D-PASL and 2D-pCASL.
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