Vertigo: new technologies of quantification and their role in the differential diagnosis of vestibular dysfunction
A new technology, vertigometry, is developed to qualify the severuty of vertigo. It is based on videostimulation of patient with panoramic images in horizontal and vertical planes, which is modeling systemic vertigo. With the use of this method, direction and severity of rotating vertigo were determined through different-velocity videostimulation with panoramic images in patients with vestibular dysfunction. It was found that position-dependent peripheral vestibular syndrome is characterized by hight velocity of visual vertigo, from 1116,3 to 149,5 °/s, while cervical-induced vertigo is characterized by velocity of 31,9 to 65,1 °/s (p<0,05). Patients with psychogenic vertigo could not present clearly the direction and intensity of their vertigo.