| Japanese |
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| Title | 99mTc-ECDを用いた閉眼および開眼投与における一次視覚野の脳血流量の比較 |
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| Subtitle | 《短報》 |
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| Authors | 長谷川貴彦*, 稲尾意秀**, 仙田宏平*** |
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| Organization | *国家公務員等共済組合連合会名城病院放射線科, **名古屋大学医学部脳神経外科, ***藤田保健衛生大学衛生学部 |
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| Journal | 核医学 |
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| Volume | 33 |
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| Number | 11 |
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| Page | 1239-1242 |
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| Year/Month | 1996/11 |
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| Article | 報告 |
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| Publisher | 日本核医学会 |
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| Abstract | 「要旨」健常ボランティア4名を対象に99mTc-ECDの閉眼投与(アイマスク着用)と開眼投与を別日に行い, 一次視覚野への集積を比較検討した. 閉眼投与では小脳と一次視覚野の集積が同程度であったのに対し, 開眼投与では一次視覚野の集積が小脳よりも高くなった. 一次視覚野における集積は, 閉眼投与に比して開眼投与で平均16%の増加を認めた. 積極的な光刺激等の賦活を加えない自然開眼時における局所脳血流量の増加が, 99mTc-ECDによって捉えられたものと考えられる. 「I. はじめに」視覚野における局所脳血流量は, 閉眼状態に比べて開眼状態で増加していることが容易に想像できる. しかし, 脳血流SPECTを用いた検討では, 積極的な光刺激等の賦活を加えた報告は散見されるものの, 日常検査を想定した自然開眼における検討はなされていない. 一般の脳血流SPECT検査においては, トレーサ投与時にアイマスクを用いた遮光閉眼処置を施す施設もあれば, そうでない施設もある. |
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| Practice | 臨床医学：一般 |
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| Keywords | 99mTc-ECD, SPECT, CBF visual cortex, Visual stimulation. |
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| English |
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| Title | Comparison of Cerebral Blood Flow in Primary Visual Cortex by Administration of 99mTc-ECD while Having Eyes Open or Closed |
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| Subtitle | - Short Communication - |
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| Authors | Takahiko HASEGAWA*, Suguru INAO**, Kohei SENDA*** |
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| Authors(kana) | |
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| Organization | *Radiology Department, Meijyo Kyousai Hospital, **Neurosurgery Department, Nagoya University, ***Hygiene Department, Fujita College of Health and Hygiene |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 33 |
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| Number | 11 |
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| Page | 1239-1242 |
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| Year/Month | 1996/11 |
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| Article | Report |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | Four healthy volunteers were administered 99mTc-ECD while having their eyes open or closed (by an eye mask) on different days and the accumulation of the tracer in their primary visual cortex was compared. The accumulation in the cerebellum and the primary visual cortex was about the same when the volunteers were administered the tracer while having their eyes closed. On the other hand, the accumulation was higher in the primary visual cortex than the cerebellum when the volunteers were administered the tracer while having their eyes open. In the primary visual cortex, the accumulation of the tracer was 15% higher on the average when the tracer was administered while having their eyes open than the value obtained while having their eyes closed. It was assumed that 99mTc-ECD depicted the increase of the regional cerebral blood flow at natural state of opened eyes without active stimuli such as photic stimulation. |
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| Practice | Clinical medicine |
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| Keywords | 99mTc-ECD, SPECT, CBF visual cortex, Visual stimulation. |
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