摘要
目的:探讨MR常规序列及STIR序列在骨肉瘤诊断中的应用价值。方法:对16例经手术或穿刺病理证实的骨肉瘤患者MRI影像资料进行对比分析。结果:16例患者在MRI常规序列(SE)检查中,6例T1WI/T2WI表现为低信号;2例表现为T1WI低信号,T2WI高信号;其余均表现为T1WI不规则低信号,T2WI为不规则高信号。SE与STIR均能显示肿瘤的形态、部位,STIR序列显示为病变区及周边呈片状高信号,且范围比SE序列显示更大。结论:MRI常规序列可以显示肿瘤的形态、部位,STIR序列在显示肿瘤的侵蚀范围上,显示比较明显、准确,更具有明显优势。
Objective： To evaluate spin- echo and short invarsion time inversion recovery （STIR） sequences in diagnosis of osteosarcoma. Method： The MR imaging appearances of 16 cases with osteosarcoma proved by operation or biopsy were retrospectively analysed. Result： On MR spin -echo sequences, the osteosarcoma showed hypointense signal on T1WI and T2 WI in 6 cases, hypointense signal on T1WI and hyperintense signal on T2WI in 2 cases; and inhomogeneous hypointense signal on T1WI and inhomogeneous hyperintense signal on T2WI in 8 cases. The shape and location of osteosarcoma could be detected with SE or STIR sequences. The tumor and peritumoral tissue displayed hyperintense signal on STIR in all cases, and it was of a greater volume of abnormality than SE sequences. Conclusion： Traditional MR sequences could depict the shape and location of osteosarcoma, the invaded extent of osteosarcoma on STIR sequence was more conspicuous and accurate than on SE sequences.
出处
《河北医学》
CAS
2007年第11期1273-1275,共3页
Hebei Medicine
关键词
骨肉瘤
序列
磁共振成像
Osteosarcoma
Sequence
Magnetic resonance imaging
