Magnetic resonance imaging of metastatic cervical adenopathy
作者:
Bradley,
Jabour Robert,
Lufkin Lester,
Layfield William,
期刊:
Topics in Magnetic Resonance Imaging
(OVID Available online 1990)
卷期:
Volume 2,
issue 4
页码: 69-75
ISSN:0899-3459
年代: 1990
出版商: OVID
数据来源: OVID
摘要:
Detecting cervical adenopathy is critical in the management of carcinomas in head and neck. CT scanning remains a very effective modality in defining adenopathy. TI-weighted MRI scans are comparable to CT in detecting lymph nodes. T2-weighted images are less useful as the lymph nodes tend to have long T2 relaxation times similar to the surrounding fat. MR has not proved to be useful in detecting carcinoma in non-enlarged cervical nodes. The morphologic criteria developed for metastatic nodes with CT are appropriate with MRI (size, shape, signal, extracapsular spread). Gadolinium is sometimes useful in defining central necrosis in metastatic squamous cell adenopathy.
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