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Prostate Contourning
⚫
GTV:
Usually subclinical malignant disease
⚫
CTV:
Whole prostate (it contains the GTV at a certain probability level)
⚫
PTV
: Geometrical concept to compensate, among others, physiological movements,
variations in size, shape, and position of the CTV during RT.
MRI
: More detailed than CT
Anterior fibromuscular
stroma
Peripheral zone
Central zone
Santorini
plexus
Surgical pseudocapsule