J Med Phys Close
 

Figure 1: Pre-plan images for a 37.6-cc prostate implanted at our center with 0.5 U I-125 seeds. Left panel: Transrectal ultrasound image near mid-gland overlaid with contours delineating prostate (red), PTV (light blue), urethra (green), and rectum (dark blue). Also shown are the template grid, and seed (light green filled circles) and needle (yellow circles) locations. Right panel: 3D rendering of the 145 Gy isodose surface (translucent orange) covering the PTV (light blue). The prostate apex is at the front. Note that seed spacing in the needles is not uniform

Figure 1: Pre-plan images for a 37.6-cc prostate implanted at our center with 0.5 U I-125 seeds. Left panel: Transrectal ultrasound image near mid-gland overlaid with contours delineating prostate (red), PTV (light blue), urethra (green), and rectum (dark blue). Also shown are the template grid, and seed (light green filled circles) and needle (yellow circles) locations. Right panel: 3D rendering of the 145 Gy isodose surface (translucent orange) covering the PTV (light blue). The prostate apex is at the front. Note that seed spacing in the needles is not uniform