Anal and Rectal Cancers - ASTRO
Anal and Rectal Cancers - ASTRO
Anal and Rectal Cancers - ASTRO
- TAGS
- anal
- rectal
- cancers
- astro
- www.astro.org
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<strong>Rectal</strong> Tumor Motion<br />
• IMRT for rectal cancer limited by uncertainty in<br />
targeting i rectal ltumors<br />
• Consequence of rectal motion due to filling <strong>and</strong><br />
ddeformation f ti<br />
• Data from studies of prostate gl<strong>and</strong> motion using<br />
cine cine-MRI MRI demonstrate<br />
– <strong>Rectal</strong> motion <strong>and</strong> filling was a main determinant of<br />
prostate p intra-fraction motion<br />
• Inter-fraction motion for rectal tumors may be<br />
even greater Ghilezan M, IJROBP, 2005
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