Morgenstern C, Griewing B, Müller-Esch G, Zeller J A, Kessler C
Department of Neurology, Ernst-Moritz-Arndt University of Greifswald, Germany.
J Neuroimaging. 1997 Jul;7(3):190-2. doi: 10.1111/jon199773190.
Moyamoya syndrome is characterized by the reticulated collateralization of the intracranial vasculature distal to an occlusion of proximal intracranial vessels. In the present study this pathology was visualized in 2 patients, aged 29 and 32 years, using transcranial color Doppler imaging (TCDI). Digital subtraction angiography in both patients revealed stenosis of the intracranial portion of the internal carotid arteries, occlusion and stenosis of several cerebral arteries, and a bilateral reticulated collateral network particularly in the region of both basal ganglia, typical of moyamoya syndrome. TCDI with power-mode Doppler depicted parts of the intracranial collateral network, not possible using conventional color-flow Doppler. TCDI with power-mode Doppler permitted better visualization of intracranial vascular pathology in comparison to conventional color-flow Doppler, enabling a rapid and noninvasive diagnosis of rare cerebrovascular anomalies.
烟雾综合征的特征是颅内近端血管闭塞远端的颅内血管呈网状侧支循环。在本研究中，使用经颅彩色多普勒成像（TCDI）在2名年龄分别为29岁和32岁的患者中观察到了这种病理情况。两名患者的数字减影血管造影均显示颈内动脉颅内段狭窄、多条脑动脉闭塞和狭窄，以及双侧网状侧支循环网络，特别是在双侧基底节区，这是烟雾综合征的典型表现。功率模式多普勒TCDI显示了颅内侧支循环网络的部分情况，这是传统彩色血流多普勒无法做到的。与传统彩色血流多普勒相比，功率模式多普勒TCDI能更好地显示颅内血管病变，从而能够快速、无创地诊断罕见的脑血管异常。
