Fig 4.

Images from the three patients in whom the devices were removed before radioactive unloading. Left, CT scan shows mass effect and bleeding around the device after acute hyponatremia. Center, CT scan shows substantial hemorrhage in the surgical cavity in this patient with coagulopathy. Right, 3D gradient-echo T1-weighted image (3.5/7/1) shows blood products in the surgical cavity and an increased distance between the edges of the balloon and surrounding tissues; this was considered a lack of conformance.