Imaging Off Therapy/Surveillance
MRI of the brain without and with contrast is recommended during off
therapy surveillance of a calvarial tumor. (GRADE C, SOR 1.00, very
strong recommendation) CT of the head without contrast may provide
complementary information during off therapy surveillance. CT however
does not serve as a primary method of off therapy surveillance.
Contrast-enhanced CT is not recommended for off therapy surveillance
unless MRI is contraindicated.