磁共振肝脏增强技术的临床应用

Clinical Application of Enhancement Scanning Technique of Liver in MRI

目的:探讨磁共振肝脏增强扫描技术在临床中的应用。方法:用磁共振机和自动注射器对147例患者行肝脏增强扫描。对比剂总量为10～15 ml(0.2 mmol/kg),注射流速为2 ml/s。注射后30 s和70 s进行双期扫描。结果:147例肝动脉期、门脉期影像显示良好,并能很好地显示腹主动脉、肝动脉、脾动脉、肝门区血管分支,4例门静脉和下腔静脉因各种原因双期显影不佳。结论:磁共振行自动高压注射对肝脏进行增强扫描,对肝脏许多疾病的诊断均能获得满意的效果。

Objective To evaluate hepatic enhancement technology with MRI and its clinical application. Methods 147 patients underwent enhanced MRI scanning and an automatic injector. Total dose of contrast agent for each patient was 10 to 15ml （0.2mmol/kg）at a rate of 2ml/s,Two-phase enhancement were performed at a delay Of 30 and 70 seconds respectively after the initiation of bolus injection. Results Good visualization of two phases for both hepatic artery and portal vein were achieved in 147 patients in addition to branches of abdominal aorta, hepatic artery, splenic artery, portal vein, inferior vena cava and vasculatures in hepatic port. The 4 patients did not have ideal two-phase images for various reasons. Conclusion MRI with bolus injection using an automatic injector can satisfy the diagnosis for hepatic diseases.