摘要
目的 评价超顺磁性氧化铁 (SPIO)对肝脏局灶性结节增生 (FNH)的诊断价值。资料与方法 回顾性分析 7例 7个肝脏FNH的平扫、动态增强及SPIO增强MRI资料。结果 病灶在T1 WI上呈相对低至等信号 ,T2 WI上呈等至相对高信号 ,6个病灶可见中心瘢痕。动态增强扫描 6个病灶以快进慢出方式强化。SPIO增强扫描 6个病灶实质部分信号明显降低 ,5个中心瘢痕显示更清晰。结论 SPIO增强扫描进一步从组织成分方面为FNH诊断提供依据。
Objective To evaluate superparamagnetic iron oxide (SPIO) enhanced MRI in the diagnosis of hepatic focal nodular hyperplasia (FNH).Materials and Methods Plain, dynamic enhanced and SPIO enhanced MRI findings in 7 patients with FNH were retrospectively analyzed.Results The lesions appeared as hypo or iso intensity on T 1WI, and iso or hyper intensity on T 2WI. A central scar was noted in 6 lesions. On dynamic enhanced scans, fast in and slow-out enhancement pattern was seen in 6 lesions. On SPIO enhanced scans, parenchymal signal was markedly decreased in 6 lesions, and the central scar became more clear in 5 lesions.Conclusion Conclusion SPIO enhanced MRI can provide evidence regarding tissue composition which is helpful for the diagnosis of FNH.
出处
《临床放射学杂志》
CSCD
北大核心
2002年第6期432-435,共4页
Journal of Clinical Radiology
