Hirofumi Machizuka

Toru Inamori; Hirofumi Machizuka; Takeo Kumoi; Yukio Takayasu

Thirty cases of intractable positional vertigo were studied by means of digital subtraction angiography (DSA). Benign paroxysmal positional vertigo was not included. DSA allows real time digital subtraction of X-ray transmission data using an image intensifier and television system. Intravenous DSA (IV DSA) was used to compare blood vessel flow in the right and left vertebral arteries. Abnormal findings were noted in 27 patients, with 10 being affected on the left side, 7 on the right, and 10 bilaterally. Twenty-three patients had slight stenosis, and bending and kinking were observed in 17. DSA results were related to the 6 established types of positional nystagmus. DSA is, therefore, considered to be an important tool in the diagnosis and treatment of positional vertigo.

Hiroshi Mori; Takeo Kumoi; Haruo Wakutani; Hirofumi Machizuka

We analysed the stabilograms of subjects standing still, on a rolling platform, or with impulse stimulation. These challenges test the postural restoration reflex system which the usual stabilogram at rest cannot do. We conclude that this method i s helpful in the diagnosis of vertigo.

Toru Seo; Toshio Ikeda; Yoshiaki Morisaki; Hirofumi Machizuka; Hiroshi Mori; Takeo Kumoi

Hirofumi Machizuka; Toru Minatogawa; Takeo Kumoi

Hiroshi Mori; Toru Inamori; Yoshiaki Morisaki; Toshio Ikeda; Hirofumi Machizuka; Takeo Kumoi

Hirofumi Machizuka; Toru Minatogawa; Toru Inamori; Takeo Kumoi

Toru Minatogawa; Hirofumi Machizuka; Toru Inamori; Yoshihiko Nishimura

Toru Inamori; Haruo Wakutani; Hirofumi Machizuka; Keiko Tsuda; Yukiko Yamamoto; Toru Minatogawa

Takeo Kumoi; Toru Inamori; Hiroshi Mori; Hirofumi Machizuka; Toshio Ikeda

Hirofumi Machizuka; Toru Minatogawa; Toru Inamori; Takeo Kumoi; Hiroya Fujiki