Bolus Design - decimal
Bolus Design - decimal
Bolus Design - decimal
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<strong>Bolus</strong> ECT<br />
Creation Operator: Physical Depth<br />
b+d = R 90<br />
b = bolus thickness<br />
d = depth to distal side<br />
of target<br />
R 90 = therapeutic depth<br />
Low et al. (1992)<br />
Y<br />
Z<br />
X<br />
Target volume<br />
b<br />
d<br />
Virtual source<br />
Primary Collimator<br />
Multileaf Collimator<br />
Secondary Collimator<br />
Proximal bolus surface<br />
Skin surface =<br />
Distal bolus surface<br />
Critical Structure
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