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Treatment verification: importance for BT
Risk of errors (high compared to EBRT):
Manual procedures: errors in reconstruction of catheters,
applicator length, applicator-afterloader connection, etc.
Mechanical equipment: obstructed transfer tubes and
applicators, machine failure, etc.
High impact of errors/uncertainties:
High dose gradients
Hypofractionation schemes
Challenge: Low patient volume (compared to EBRT):
Resource investment limitations
Small clinics: Reduced expertise and experience