Abstract #1763
Quiet SWI versus conventional SWI: Radiological evaluation in pediatric patients
Noriko Aida 1 , Kumiko Nozawa 1 , Yuta Fujii 1 , Tetsu Niwa 1 , Koichiro Nomura 1 , Masahiko Sato 2 , Koki Kusagiri 2 , Yasutake Muramoto 2 , Yuichi Suzuki 2 , Katsutoshi Murata 3 , Matthew Nielsen 3 , David Grodzki 4 , and Takayuki Obata 5
1
Radiology, Kanagawa Children's Medical
Center, Yokohama, Kanagawa, Japan,
2
Radiological
technology, Kanagawa Children's Medical Center,
Yokohama, Kanagawa, Japan,
3
Research
& Collaboration, Imaging &Therapy System, Siemens Japan,
Tokyo, Japan,
4
Magnetic
Resonace, Siemens Healthcare, Erlangen, Bavaria,
Germany,
5
Research Center for Charged Particle
Therapy, National Institute of Radiological Sciences,
Chiba, Japan
Clinical efficacy of a prototype quiet SWI (qSWI) was
prospectively evaluated compared to the conventional SWI
(cSWI) in 57 sedated pediatric patients. qSWI sequence
with optimized gradients was used in order to reduce
acoustic noise and it was measured 8.8 dB(A) less than
that of cSWI. ICC scores in all evaluated veins for two
readers indicated good or moderate agreement. qSWI
provided image quality that was almost identical to that
of cSWI and it produced less acoustic noise by using
slightly more scan time, and could be substituted for
cSWI in order to provide gentler scans to pediatric
patients.
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