Abstract #3488
Visualization of arteries and veins using carbogen-challenged dual-echo MRA (CD-MRA)
Chien-Hsiang Huang 1,2 , Chiao-Chi V. Chen 1 , Yi-Hua Hsu 1 , and Chen Chang 1
1
Institute of Biomedical Sciences, Academia
Sinica, Taipei, Select, Taiwan,
2
Institute
of Biomedical Engineering, National Taiwan University,
Taipei, Taipei, Taiwan
Identifying the arteries and veins is critical for
diagnosis and prognosis in certain brain diseases. A
dual-echo sequence has been proposed to visualize
arteries by inflow effect and veins by BOLD effect. This
study aimed to improve the sensitivity of arteries and
veins in the dual-echo sequence by using the carbogen
challenge to enhance both inflow and BOLD effects. This
newly proposed technique is named carbogen-challenged
dual-echo magnetic resonance angiography (CD-MRA). A
stroke model was used to demonstrate its ability to
reveal vessels in a pathological condition.
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