Arterial Spin Labeling Improvement by Incorporating Local Similarity with Anatomic Images
Li Zhao 1 , Weiying Dai 1 , and David Alsop 1
Radiology, Beth Israel Deaconess Medical
Center & Harvard Medical School, Boston, MA, United
Arterial spin labeling provides important perfusion
information, but it suffers from intrinsically low SNR
and spatial resolution. Since high quality T1 weighted
images are collected in routine MRI procedures, we
present a method to enhance ASL image by incorporating
its local similarity with anatomic images. The proposed
method was evaluated on five tumor patients and results
preserved the low resolution contrast of ASL with
improved CNR and spatial resolution.
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