Ulrich Katscher1, Jakob Meineke1, Shuo Zhang2, and Jochen Keupp1
1Philips Research Europe, Hamburg, Germany, 2Philips Healthcare, Hamburg, Germany
1Philips Research Europe, Hamburg, Germany, 2Philips Healthcare, Hamburg, Germany
An
effective b-value has been defined for distortion-free diffusion-weighted
imaging using a bipolar double-echo steady-state sequence, and successfully
evaluated with phantom and volunteer breast measurements.
Fig. 5: Comparison
of breast DWI of a healthy volunteer. Upper row: standard DWI based on EPI,
lower row: DWI based on DESS (dwDESS). The b-value for dwDESS is calculated
using the proposed method and leads to same image contrast as standard DWI.
Fig. 2: Overview of the diffusion signal model for a double-echo
steady-state sequence in the bipolar case (details see text)
