Non-invasive mapping of speech areas NexSpeech® for NBS System

Non-invasive, direct speech mapping Navigated Brain Stimulation (NBS) is a new non-invasive method for locating the motor cortex with clinically proven accuracy. Like intraoperative cortical stimulation, NBS is a direct method, delivering reliable results which can be readily interpreted and easily explained to patients. Now, with the NexSpeech® module, the NBS System also enables presurgical speech mapping. NexSpeech® maps • rTMS-stimulated areas eliciting speech errors are color-coded by the kind of error (e.g. speech arrests, paraphasias) • Locations which do not elicit errors are marked with...

Compatible with surgical neuronavigators After analysis of the behavioral responses to rTMS, the language mapping results are displayed in the 3D MRI rendering of the patient’s head. NexSpeech® reliably determines cortical locations not containing essential speech functions, resulting in a negative map of language eloquent regions. Like NBS motor maps, NexSpeech® maps can be seamlessly exported to other The NBS System accurately visualizes the electric field location in the cortex. planning systems and surgical neuronavigation systems. Why choose NexSpeech®? NexSpeech® is a more intuitive and...

NexSpeech® module components 1. Screen 17” LCD unit for displaying image stack to the patient and video camera for recording speech behavior in baseline and stimulation sessions 2. NexSpeech® Main Software and Analyzer Software (installed on NBS System PC) NexSpeech® module also includes NexSpeech® head tracker Standard NBS System components 3. Optical tracking unit 4. Focal coil. Optional cooled coil and cooling unit are available. 5. NBS cart with NBS System PC, TMS stimulator and EMG power unit NexSpeech® requires NBS System 4.3 or later version NexSpeech® Main Software NexSpeech® Main Software...

NexSpeech® session overview The patient’s MRI is loaded into the system, and a head tracker and EMG electrodes are attached to the patient. Landmark registration and image-head alignment are performed. The stimulator output for speech mapping is adjusted based on individual motor threshold -finding performed by the NBS System. The patient is shown a set of images for naming. Images which the patient has difficulty naming are discarded resulting in a patient-validated image stack. To establish a baseline session, speech behavior during the naming task is recorded on video. The stimulation coil...

Speec NexSpeech® advantages in speech mapping NexSpeech® benefits for neurosurgery • Non-invasive and comfortable for the patient • Intuitive use creates single-operator solution • Identifies cortical locations not exhibiting essential speech functions • Integrated NBS workstation comprising navigation, EMG and stimulation with cognitive presentation modules • Provides tools for systematic analysis of mapping session results • Delivers information for planning prior to surgery • Enables better patient dialogue • Lowers risk of damage to eloquent cortex through a more informed approach • Allows...