| Japanese |
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| Title | 局所脳血流像の横断断層シンチグラフィー - 81mKr持続的頸動脈内注入法 - |
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| Subtitle | 《短報》 |
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| Authors | 前田敏男*, 松田博史*, 利波紀久*, 久田欣一*, 藤井博之**, 林実** |
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| Organization | *金沢大学医学部核医学教室, **金沢大学医学部脳神経外科学教室 |
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| Journal | 核医学 |
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| Volume | 17 |
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| Number | 7 |
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| Page | 829-832 |
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| Year/Month | 1980/8 |
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| Article | 報告 |
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| Publisher | 日本核医学会 |
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| Abstract | 「はじめに」KetyとSchmidtがN2O法でヒトの脳血流量測定法を確立して以来, 脳循環測定は脳の代謝や機能との関連で重要視されている. 最近は電算機との組み合わせにより各種の負荷に対する脳血流の局所変化をfunctional map上でとらえることも可能となっている. さらにCTの出現により横断断層面での局所脳循環評価も研究されている. われわれもsingle photon emission computed tomography (S-ECTと略す)の臨床応用として局所脳血流像を臨床例で撮像し検討したので報告する. 「方法と対象」測定装置はS-ECT用に開発されたトモスキャナーIIを用いた. 焦点距離13cmの低エネルギー用コリメータを使用し, 検出器間距離は36cmとし, 吸収補正プログラムを用いて撮像した. 81mKrの検出のために, 装置のエネルギーは190 KeV±10%に設定した. |
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| Practice | 臨床医学：一般 |
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| Keywords | Cerebral blood flow, Krypton-81m, computed tomography, Single photon emission tomography |
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| English |
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| Title | Regional Cerebral Blood Flow Image by the Method of Single Photon Emission Computed Tomography : Continuous Intracarotid Injection of Krypton-81m |
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| Subtitle | - Short Communications - |
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| Authors | Toshio MAEDA*, Hiroshi MATSUDA*, Norihisa TONAMI*, Kinichi HISADA*, Hiroyuki FUJII**, Minoru HAYASHI** |
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| Authors(kana) | |
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| Organization | *Department of Nuclear Medicine, and **Department of Neurosurgery, Kanazawa University |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 17 |
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| Number | 7 |
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| Page | 829-832 |
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| Year/Month | 1980/8 |
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| Article | Report |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] The regional cerebral blood flow was evaluated on the transverse section image by the Tomogscanner II. The krypton-81m was continuously eluted from the 10 mCi of 81Rb-81mKr generator within the 5% glucose solution and injected into the carotid artery in 7.5 ml/min. The spatial resolution of the Tomogscanner II was about 2 cm within 20 cm diameter slice at the energy of 190 KeV +- 10%. The high quality images were obtained in 4 min/slice. The transverse section images allowed to visualize blood flow between brain structures such as grey and white matter and basal ganglia. The cerebral arteriovenous malformation showed very increased perfusion. The lesion of cerebral contusion, infarction and some of cerebrovascular disease showed localized decreased perfusion. The visualized perfusion of a moyamoya disease was only at the region of moyamoya vasculature by the infusion of krypton-81m into the internal carotid artery. The brain cyst and the subdural hematoma and the other tumors, fed from vertebral or external carotid artery, showed no perfusion, that is defect, on the images obtained by the infusion of krypton-81m into the internal carotid artery. |
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| Practice | Clinical medicine |
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| Keywords | Cerebral blood flow, Krypton-81m, computed tomography, Single photon emission tomography |
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