Alternative method for approaches to intracranial metastases in budget Constrained settings

Introduction: Preference has been given to minimally invasive approaches to the intracranial metastases, and alternative methods should be developed especially for environments with budget constraints. Objectives: This paper aims to describe a technique using a application for smartphone and a pair of compasses in approaches to intracranial metastases in a budget-constrained environment. Methods: Two cases are reported describing a technique of microsurgical treatment of brain metastases in a minimally invasive approach using a smartphone application that allows the planning of approaches to intracranial metastases. The NeuroKeypoint app is available in the App Store and Google Play Store. The compass Trident 9001 was used in association. Results: The incisions for craniotomies were marked at the indicated points according to the Neurokeypoint application. A single point marking was prioritized, corresponding to the center of the intended craniotomy. Intraoperative ultrasound was done before corticectomy and the location of the lesion was confirmed. The lesions were easily localized in both cases and both craniotomies were considered as adequate. Conclusion: The NeuroKeypoint application provides a low-cost and widely available alternative, making it accessible to a wide range of services.