浅側頭動脈-中大脳動脈吻合術症例の術後検査法の検討 : -Tc-99m標識赤血球によるvascular imageの有用性について-

概要

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The patency of the STA-MCA anastomosis for eleven cases were studied by vascular imaging with 99mTc labelled autologous red blood cells. Four cases out of these eleven patients were also studied by brain scintigram with Tc-99m pertechnetate. For vascular imaging, the kit for the preparation of99mTc labelled red blood cells (Ref. TCK-11, CIS) was used. Radionuclide cerebral angiography and the static image of the head (4 views) and neck (3 views) were obtained after intravenous injection of radionuclide (99mTc-RBCs and/or Tc-99m pertechnetate). The patency of STA-MCA anastomosis was clearly visible on 99mTc-RBCs angiography in eight out of the eleven cases and positive image of anastomosis was visible on99mTc-RBCs static vascular image in six cases. But, the patency was visible on 99mTc pertechnetate radionuclide angiography in two out of four patients. The patency of anastomosis at the temporal region was more clearly visible on 99mTc-RBCs radionuclide angiography than Tc-99m pertechnetate angiography. The 99mTc-RBCs vascular imaging is valuable for the detection of the patency of STA-MCA anastomosis.