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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• Pros<br />
Ultrasound-based Ultrasound based alignment<br />
– Non-invasive<br />
– Reasonably good<br />
alignment<br />
– Visualize SV/ bladder<br />
– Visualize prostate<br />
surface contour<br />
• Cons<br />
– User-subjectivity<br />
– Patient anatomy may<br />
affect image quality<br />
– Impact of probe pressure<br />
on prostate position<br />
– Different imaging g g<br />
modality
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