四川大学学报（医学版）2012，Vol.43Issue(4)：605-608,4.
新鲜血液成像技术对下肢动脉成像及其应用价值
Peripheral MR Angiography without Contrast Agent using Fresh Blood Imaging (FBI) with ECG-trigger: Initial Experience
夏春潮 1李真林 1陈宪 1孙家瑜 1李昌宪 1唐鹤菡 1袁元 1宋彬1
作者信息
- 1. 四川大学华西医院放射科,成都610041
- 折叠
摘要
Abstract
Objective To examine the efficacy of fresh blood imaging (FBI) in detecting vascular diseases in lower extremity. Methods Thirty-six patients suspected of having lower extremity vascular diseases were imaged with a 1. 5-T MRI system (Toshiba Excelart Vantage). Contrast-enhanced MRA (CEMRA) and FBI technology, with maximum intensity projection (MIP) reconstruction were adopted to visualize lower extremity vascular. Signal to noise ratios (SNR) were measured on the FBI and CEMRA images. Two experienced radiologists assessed the imaging quality of peripheral artery MRA on MIP reconstructed images. Results All patients successfully underwent both FBI and CEMRA. All arterial segments were obtained in the 36 patients. The SNR values on FBI and CEMRA were 108. 39 ± 9. 76 and 87. 46 ± 14. 77 (t = - 6. 782, P = 0. 001), respectively. There were no significant differences in the overall image quality, arterial anatomy and venous overlap (x2 =0. 004 ,P = 0. 947;x2 = 0.000, P= 1;x2=0.681, P = 0.409). The CEMRA motion artifacts were less than FBI (x2=8. 744, P=0.03). Conclusion The FBI technique, which shows the vascular disease in lower extremity without contrast medium with ECG gating, is considered clinically useful.关键词
新鲜血液成像技术/磁共振血管成像/下肢血管Key words
Fresh blood imaging/MR angiography/Lower extremity vessel引用本文复制引用
夏春潮,李真林,陈宪,孙家瑜,李昌宪,唐鹤菡,袁元,宋彬..新鲜血液成像技术对下肢动脉成像及其应用价值[J].四川大学学报（医学版）,2012,43(4):605-608,4.
