Figure 1.

Phantom and methods used for the experiments. (A) Sucrose phantom in its case and (B) case container. Up to 16 sucrose phantoms could be placed into this container filled with 0.9 M sucrose solutions containing 0.03% (w/w) NaN₃. (C) The heating box made of Styrofoam, which encloses the phantom case container. The container could be heated in the gantry of a magnetic resonance imaging scanner via a tube that was connected to a (D) circulating temperature-regulated water bath. (E) The optical fiber thermometer for temperature monitoring, which was placed into the phantoms. (F) The region of interest was 7.27 mm² at the position of the thermometer on each diffusion-weighted image.