Abstract #4327
Time-SLIP with pencil beam pulse for observing CSF flow dynamics
Shuhei Shibukawa 1,2 , Toshiaki Miyati 2 , Hiroaki Nishio 1 , Tomoya Nakamura 1 , Yutaka Imai 3 , Testuo Ogino 4 , and Isao Muro 1
1
Department of Radiology, Tokai university
hospital, Isehara, Kanagawa, Japan,
2
Division
of Health Science,Graduate School of Medical Sciences,
Kanazawa university, Kanazawa, Ishikawa, Japan,
3
Radiology,
Tokai university hospital, Isehara, Kanagawa, Japan,
4
Healthcare
department, Philips electronics Japan, minato-ku, Tokyo,
Japan
In MRI, Yamada et al. reported a method which used
Time-SLIP other than observation of CSF flow dynamics
using phase contrast technique. we used a pencil beam
pulse as the selective pulse to improve the selectivity
of the target region in Time-SLIP. We report the
validation results for CSF flow dynamics observations in
comparison with Time-SLIP with pencil beam pulse (PB
Time-SLIP) and that with slab pulse (SP Time-SLIP). In
the flow phantom, it was found that pencil beam pulse
was affected by the irradiation time prolonged at high
flow rate. In human study, no significant difference was
found in observation of CSF flow dynamics between SP
Time-SLIP and PB Time-SLIP. In the case of slow flow
rates such as CSF, PB Time-SLIP enables more selective
visualization than SP Time-SLIP.
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