External Beam RT for Prostate Cancer - ASTRO
External Beam RT for Prostate Cancer - ASTRO
External Beam RT for Prostate Cancer - ASTRO
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Defining Organs at Risk (OAR)<br />
Avoidance structures and denominator <strong>for</strong> DVH<br />
• RECTUM:<br />
From inferior ischium to anterior flexion of sigmoid<br />
Alt Alternatively ti l can use li linear llength th of f 10 10-11cm 11<br />
• BLADDER:<br />
Entire bladder (interpolate contour)<br />
• FEMORAL HEADS:<br />
Entire femoral head to lesser trochanter
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