"Róbert Bárány (1876-1936), a renowned Hungarian otologist, was the first to describe this condition in 1921 2,5. Margaret Dix (1911-1981) and Charles Hallpike (1900-1979), British otologists at the National Hospital of Neurology and Neurosurgery, were the first to posit that the cause was the disturbance of the otoliths in the labyrinth 3. From their work resulted the Dix-Hallpike test 3."
"As otoliths range in size from 10-30 μm and the upper limit of the spatial resolution of clinical CT is 125 μm, their displacement into the semicircular canals cannot be identified with current techniques 7,8."
"posterior and anterior canal BPPV: Epley manoeuvre or Semont manoeuvre 6"
"Commonly affects adults especially in the 50-70 year old age bracket, with its prevalence increasing with age 6. There is a female predominance 6."