The MIDA model is a multimodal imaging-based detailed anatomical computer model of the human head and neck. The model offers detailed representation of brain surfaces, meninges, cerebrospinal fluid distribution, eyes, ears, and a number of deep brain structures, as well as several distinct muscles, bones and skull layers, blood vessels, cranial nerves, dental structures, and glands. Organs and tissues of the MIDA model are represented by three-dimensional, highly detailed computer-aided design (CAD) objects in standardized CAD data format. The MIDA model can be used in all software capable of importing and manipulating CAD data. The MIDA model includes segmentation of 153 different structures. Of particular interest are computational simulations to potentially investigate the safety and efficacy of medical devices in, on, or near the head.