摘要应用1.5T磁共振对12名健康志愿者下肢静脉行心电触发非对比增强磁共振成像(NCE-MRV),根据下肢静脉17段分段标准对图像质量进行定量和定性评价.均成功完成检查,下肢静脉系统的平均信噪比、对比噪声比分别为66±23和53±22;图像质量优、良率分别为62％和31％;未出现不可诊断血管节段.因此下肢NCE-MRV切实可行,可获得良好的图像质量.

abstractsTwelve healthy volunteers underwent ECG-triggered non-contrast-enhanced magnetic resonance venography(NCE-MRV)of lower extremities on a 1.5T MR scanner.Image quality was assessed quantitatively and qualitatively with a 17-segment model.ECG-triggered (NCE-MRV) was successfully performed in all patients.Mean signal to noise ratio and contrast to noise ratio of lower extremities were 66 ± 23 and 53 ± 22 respectively.Excellent and good image qualities were achieved in 62％ and 31％ of all segments respectively without non-evaluable segment.Thus ECG-triggered NCE-MRV of lower extremities is feasible with reliable image quality.