脳動脈りゅう術中における超音波検査　　パワードプラ法による３次元脳血管撮影（Ｔｈｒｅｅ　Ｄｉｍｅｎｓｉｏｎａｌ　Ｃｏｌｏｒ　Ｐｏｗｅｒ　Ａｎｇｉｏ）の有用性:―パワードプラ法による3次元脳血管撮影 (Three Dimensional Color Power Angio) の有用性―

概要

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Intraoperative angiography has been performed to confirm the complete clipping of intracranial aneurysm at the time of the surgery. However, this procedure, which has some risks, requires complex techniques and expensive devices. Therefore we have tried Three Dimensional Color Power Angio (hereinafter referred to 3D CPA) with power Doppler method using ultrasound instrument instead of angiography. Nineteen patients with intracranial aneurysms were studied. Conventional angiography was performed before and after surgery. 3D CPA was also performed before and after the clipping of the aneurysms. In the operation, after craniectomy and dural flapping, the linear probe was carefully swept on the brain surface in parallel to the target vessels. 3D CPA calculated power Doppler data and reconstructed the 3D image by using the full-volume rendering method. 3D CPA findings were found to clearly correspond to the findings of conventional angiography. 3D CPA is a new, noninvasive and repeatable tool that could replace conventional angiography. This is the first report of 3D CPA studies of intracranial aneurysms during surgery.
一般社団法人日本脳卒中の外科学会の論文