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  • Title: Interactive intraoperative localization during the resection of intraventricular lesions.
    Author: Vinas FC, Zamorano L, Lis-Planells M, Buciuc R, Diaz FG.
    Journal: Minim Invasive Neurosurg; 1996 Sep; 39(3):65-70. PubMed ID: 8892283.
    Abstract:
    Mass lesions located in the ventricular system can be surgically challenging. These tumors are often slow growing and reach considerable size before they are diagnosed. These lesions commonly cause multiple obstructions to the circulation of cerebrospinal fluid with subsequent hydrocephalus. They are deeply located in the brain, surrounded by vital neurological and vascular structures, and often have irregular configurations. All these characteristics may pose real problems during surgery in terms of orientation and a optimal resection. For the surgical approach to such intraventricular lesions we are currently using an infrared-based system implemented at Wayne State University that allows intraoperative real-time localization. Three infrared cameras continuously track the position of multiple light-emitting diodes in relation to a predetermined "rigid body". This system can be used with different surgical instruments, and does not interfere with standard neurosurgical techniques. We present our preliminary experience in 18 patients with intraventricular tumors that were operated on between December 1992 and March 1995. Their lesions were located in the lateral ventricles, third ventricle, and pineal region with extension into the posterior aspect of the third ventricle. The use of the interactive infrared-based localizing unit allowed a total resection in 15 cases and a subtotal resection in 3 cases. We report 3 complications, but only one of them was related to the surgical procedure. The postoperative follow-up period ranged from 2 to 24 months. All patients were followed clinically and with postoperative magnetic resonance imaging scans. This interactive infrared system has proven to be a very useful tool, flexible, safe and reliable, increasing surgical efficiency, without a significant increase in the length of resection.
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