Meeting Banner
Abstract #1921

Silent Susceptibility Weighted MR Angiography; Clinical and Phantom Study

Takuya Fujiwara1, Yoshiyuki Watanabe1, Hisashi Tanaka1, Hiroto Takahashi1, Atsuko Arisawa1, Chisato Matsuo1, Masahiro Fujiwara1, Tetsuya Wakayama2, Pauline Worters2, Christopher J Hardy3, and Noriyuki Tomiyama1

1Diagnostic and Interventional Radiology, Osaka University Graduate School of Medicine, Suita, Japan, 2GE Healthcare, MR Collaboration and Development, Tokyo, Japan, 3GE Global Research, Niskayuna, NY, United States

We compared silent susceptibility-weighted angiography (SWAN) with conventional SWAN (cSWAN) in the depiction of hemorrhagic lesions. We measured acoustic noise and performed phantom and clinical study using silent SWAN, cSWAN, and T2*-weighted images (T2*-WI). Acoustic noise of silent SWAN was significantly lower compared to cSWAN. In clinical and phantom study, the contrast-noise ratio (CNR) for silent SWAN and cSWAN were similar. The CNR for T2*-WI was lower than them. In clinical study, imaging quality was almost the same. T2*-WI had more artifact. Conventional SWAN may be replaced with silent SWAN which yields comparable imaging quality and lower acoustic noise.

This abstract and the presentation materials are available to members only; a login is required.

Join Here