Time course of prostatic edema post permanent seed implant determined by magnetic resonance imaging

As measured using MRI, the average edema magnitude for our study population was ∼20% on Day 0 and resolved linearly with time to ∼0% on Day 30. The edema exhibited spatial anisotropy, the prostate expanding on Day 0 by ∼10% in each of the A−P and S−I directions and by ∼0% in the L−R direction.