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Rectal Wall
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Contour as a 3 mm thick wall structure from recto-sigmoid junction to lower aspect of ischial tuberosities.
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Rectal Mucosa
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Solid structure corresponding to the internal cylindrical space central to the inner surface of the rectal wall.
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Rectum Posterior Wall
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This is the most posterior 15 mm of rectal wall
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Bladder
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Contour the whole organ as a solid structure.
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Penile Bulb
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Contour from MRI.
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Prostatic urethra Planning Target at Risk Volume (PRV)
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Contour urinary IDC within prostate, and add 1 mm radial expansion for the PRV. If no IDC used, estimate urethral position, and add 3 mm radial expansion.
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Neck of Femur
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Contour the Left and Right NOF as solid structures to the level of the ischial tuberosity.
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