脳血管性疾患に対するcerebral parenchymographyの有用性

Usefulness of Dynamic Digitized Cerebral Parenchymography for Cerebral Vascular Disease

Ⅰ．はじめに

　Dynamic digitized cerebral parenchymographyはaortic archからの造影剤注入によって脳血管すべてを同時に描出し脳全体の血流量をdigital sub—traction angiography（DSA）上で推し量ろうとするもので，フランスのTheronらによって提唱された^1,4,5）．われわれも本法を主に脳虚血性病変の検査として取り入れてきたので，その初期経験を報告する．

Aortic arch injections according to Theron's method have been performed in patients with cerebral ischemia. Digi-tal subtraction angiograms with modified windowing (low and narrow) have been used for better visualization of cere-bral parenchymal condition. This “cerebral parenchymography” allows much easier understanding of cerebral parenchymal vascularization on angiographic imaging. Although further study is necessary to estimate accurate cere-bral blood flow, this technique can enable an easy and quick understanding of the overall cerebral hemodynamics.