| 肖江喜,蒋学祥,王健,高玉洁.MRI对肝局灶病变的诊断价值[J].中国医学影像技术,1998,14(2):107~110 |
| MRI对肝局灶病变的诊断价值 |
| Diagnosis of Focal Hepatic Iesions with MRI |
| 投稿时间：1997-06-04 |
| DOI： |
| 中文关键词: 肝肿瘤 囊肿 MRI |
| 英文关键词:Liver neoplasms Cysts MRI |
| 基金项目: |
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| 摘要点击次数: 1564 |
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| 中文摘要: |
| 目的：探讨MRI对肝局灶病变的诊断价值。材料和方法：对39例临床证实的肝局灶病变的病例的MR图像进行回顾性分析, 就其信号特点、内部结构、形态及CNR值对肝良、恶性病变的鉴别价值进行估价。结果：T2W像上, 100%的肝血管瘤和囊肿为明显高信号, 而100%的肝癌和92%的转移瘤为高信号(P<0.05);85%的良性肿瘤内部结构均匀, 而恶性肿瘤均匀者仅为31%(P<0.05);75%的血管瘤和100%的囊肿呈边缘光滑的类圆形病灶, 而肝癌则呈不光滑分叶状(67%)或不规则形(33%), 转移瘤75%为不规则形, 25%为分叶状, 良性肿瘤CNR值高于恶性肿瘤。结论：恶性肿瘤多为边界不规则、内部信号不均匀的病灶, 而良性肿瘤则为边缘光滑内部信号均匀, 尤其在T2WI上, 良恶性病变的信号强度有明显差别。 |
| 英文摘要: |
| Purpose:To evaluate the role of MR imaging in the diagnosis of focal hepatic lesions.Materials and Methods:Conventional SE MR imaging of 39 patients of focal hepatic lesion were retrospectively analyzed.The shape of lesions,internal architecture,CNR value and characteristics of signal intensity were respectively evaluated.Results:On T2WI,all hemangiomas and cysts(100%) were markedly hyperintense,but most of hepatomas(100%) and metastases(92%) were hyperintense (P<005).85% of benign tumors had a homogeneous internal architecture,but only 31% in malignant tumor(P<005).Most of the hemangiomas (75%) and cysts (100%) had smooth margin and round or oval in shape,while the hepatomas had irregular (33%) or lobulated (67%) border.The mean CNR of benign tumors were higher than those of the malignant ones.Conclusion:The conventional SEMR imaging is useful in differential diagnosis of focal hepatic lesions by considerations of the shape,internal architecture and signal intensity of lesions. |
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