Neuropsychological Changes in Patients Undergoing Treatment of Unruptured Intracranial Aneurysms.

Background: Evaluation of differences in neuropsychological outcomes in patients undergoing surgical clipping (SC) vs endovascular coiling (EC) for unruptured cerebral aneurysms is essential in guiding patients seeking treatment of asymptomatic cerebral aneurysms.

Objective: To perform a prospective longitudinal analysis of neuropsychological outcomes in patients who underwent microsurgery or coiling for unruptured cerebral aneurysms.

Methods: SC (50 patients), EC (35 patients), and healthy controls (43 individuals) were included.

Imaging changes after stereotactic radiosurgery of primary and secondary malignant brain tumors.

After radiosurgery of malignant tumors, it can be difficult to discriminate between transient treatment effects, radiation necrosis, and tumor progression on post-treatment imaging. Misinterpretation of an enlarging lesion may lead to inappropriate treatment and contribute to disagreements about treatment efficacy. In an effort to clarify this problem, we reviewed our experience with interpreting post-radiosurgical imaging in patients with malignant primary and secondary brain tumors.