Stereotactic Drainage of Brainstem Abscess With the BrainLab Varioguide™ System and the Airo™ Intraoperative CT Scanner: Technical Case Report

Abstract

The combination of the Airo™ intraoperative CT and the Varioguide™ articulated arm allows for safe, accurate, and efficient targeting of posterior fossa lesions.

Comparing Fiducial-Based and Intraoperative Computed Tomography-Based Registration for Frameless Stereotactic Brain Biopsy

“…However, little is known about the implementation of iCT into frameless stereotactic biopsy procedures. To our knowledge, there is a single report on a VarioGuide supported drainage of a brainstem abscess using the AIRO-CT scanner for registration [19], but larger series of this approach are lacking and there are no data available concerning registration accuracy, radiation exposure, operation time, and diagnostic yield of iCT-based frameless biopsies. With the intention of closing this lack of data, we present our experience of 50 cases of frameless stereotactic biopsies with the VarioGuide system comparing fiducial with iCT-based registration.…”

Eikenella corrodens brain abscess after frontal sinusitis in immunocompetent patient

“…Se solicitaron pruebas de imagen complementarias (TC) que evidenciaron signos de sinusitis maxilar y frontal derecha sin complicaciones endocraneales, por lo que se decidió alta hospitalaria para seguimiento ambulatorio y tratamiento con paracetamol (650 mg/8h), ciprofloxacino (500 mg/12 h, 10 días) y mometasona nasal (una vez/día, 14 días). Diez días E. corrodens en los últimos 10 años, tres de los cuales estaban relacionados con patología odontológica y el cuarto secundario a endocarditis [6][7][8][9]. La causa principal de absceso cerebral es la transmisión por continuidad de un foco localizado, incluyendo otitis, mastoiditis y sinusitis [6], siendo recomendable descartar complicaciones en el sistema nervioso central en aquellas sinusitis que no presenten mejoría luego de tratamiento o presentan focalidad neurológica [4].…”