Diffusion- and magnetisation transfer-weighted MRI in childhood moya-moya

被引：23

作者：

Chabbert, V

Ranjeva, JP

Sevely, A

Boetto, S

Berry, I

Manelfe, C ^{[1
]}

机构：

[1] Hop Purpan, Serv Neuroradiol, F-31059 Toulouse, France

[2] Siemens AG, St Denis, France

[3] Hop Purpan, Serv Neurochirurg, F-31059 Toulouse, France

来源：

NEURORADIOLOGY | 1998年 / 40卷 / 04期

关键词：

moya-moya disease; magnetic resonance imaging; diffusion; magnetisation transfer;

D O I：

10.1007/s002340050583

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

MRI in two children with moya-moya demonstrated low signal on T2-weighted images in the acute and subacute phases of ischaemia. Gradient-echo sequences, more sensitive to magnetic susceptibility, demonstrated these abnormalities better. Signal loss, due to temporary accumulation of iron, decreases progressively and disappears in the chronic stage of the disease. Diffusion-weighted MRI allows early detection of ischaemic lesions and can be used to monitor progressive spreading of the lesions. Magnetisation transfer maps provide sharp contrast, useful for demonstrating cortical atrophy.

引用

页码：267 / 271

页数：5

共 24 条

[1] NORMAL DEPOSITION OF BRAIN IRON IN CHILDHOOD AND ADOLESCENCE - MR IMAGING AT 1.5 T [J].