Surgical Technique and Clinically Relevant Resection Cavity Dynamics Following Implantation of Cesium-131 Brachytherapy in Patients With Brain Metastases

Cs-131 patients exhibited significantly less cavity shrinkage than SRS patients during the first critical month with 88% Cs-131 dose delivery. This significant difference in shrinkage suggests that the intracavitary seeds-on-a-string technique facilitates increased cavity stability, promoting more homogenous dose delivery.