Iida Masahiro, Haida Munetaka, Igarashi Makoto
Department of Otolaryngology, Tokai University School of Medicine, Kanagawa, Japan.
Ann N Y Acad Sci. 2009 May;1164:386-9. doi: 10.1111/j.1749-6632.2009.03869.x.
The aim of the present study using near-infrared spectroscopy (NIRS) is to evaluate the correlation of cerebral (parieto-temporal lobe) hemoglobin changes and vertiginous sensation during unilateral caloric stimulation. During the hot water (44 degrees C) stimulus, cerebral hemoglobin was increased bilaterally, but it was dominant ipsilaterally. During the unilateral cold water (30 degrees C) stimulus, cerebral hemoglobin was decreased on both sides, especially on the ipsilateral side. Vertigious sensation was strong in cases with marked left-right difference of cerebral hemoglobin changes. The usefulness of NIRS to investigate the relationship between peripheral vestibular organ and vestibular cortex was verified.
本研究采用近红外光谱（NIRS）的目的是评估单侧冷热试验刺激期间大脑（颞顶叶）血红蛋白变化与眩晕感之间的相关性。在热水（44摄氏度）刺激期间，双侧大脑血红蛋白增加，但以同侧为主。在单侧冷水（30摄氏度）刺激期间，双侧大脑血红蛋白减少，尤其是同侧。大脑血红蛋白变化存在明显左右差异的病例中眩晕感强烈。证实了NIRS在研究外周前庭器官与前庭皮层之间关系方面的实用性。
