Fig. 1From: Stereotactic body radiotherapy with periprostatic hydrogel spacer for localized prostate cancer: toxicity profile and early oncologic outcomesMid-gland axial section of prostate SBRT contours showing CTV (red), PTV (red), hydrogel spacer (teal) and rectum (brown) on CT simulation scan (a) and fused T2-weighted MRI (b), and treatment plan (c). Corresponding sagittal views are also shown (d-f)Back to article page