健康国人右心室体积和射血分数的磁共振电影测量及临床意义  

Right ventricular volume and ejection fraction with fast cine MR imaging in breath-hold technique and its clinical significance

作　　者：张卓立[1] 黄志兰[1] 赵海涛[1] 方虹[1] 傅莉[1] 张贵祥[1] 

机构地区：[1]第四军医大学西京医院放射科,陕西西安710032

出　　处：《心脏杂志》2002年第4期325-326,共2页Chinese Heart Journal

摘　　要：目的 :利用一次呼吸抑制快速磁共振电影建立健康国人右心室容积、射血分数正常值。方法 :健康自愿者 5 7(男 3 7,女 2 0 )例 ,平均年龄 3 3 (18～ 5 8)岁。用 FL ASH序列轴位定位 ,用心电门控呼吸抑制 FLASH2 D电影序列做双斜位和四腔磁共振电影 ,用西门子心脏功能分析软件包进行各数据测量分析。结果 :右心室舒张末期容积指数77± 13 ml/m2 ,右心室收缩末期容积指数 3 1± 6ml/m2 ,射血分数 (61± 6) %。结论 :一次呼吸抑制快速磁共振电影能准确测量右心室体积及射血分数 。AIM: To establish right ventricular(RV) volume and ejection fraction(EF) in normal volunteers with fast magnetic resonance (MR) imaging a breath hold technique. METHODS: Fifty seven health adult volunteers(20 female, 37 male; mean age:33 years; range:18 ~ 59 years). Turbo fast low angle shot(FLASH) was used to localize the intrinsic heart planes. Double angulated view and four chamber view were acquired with a segmental ECG gated FLASH 2D cine sequence. All statistical analyses were performed with the Siemens software package. RESULTS: Right ventricular endystolic volume index 77±13 ml/m 2. Right ventricular endystolic volume index 31±6 ml/m 2. Right ventricular ejection fraction (61±6)%. CONCLUSION: RV volumes and EF can be routinely assessed with fast MRI in cardiac patients. Our established normal values allow the assessment of RV( and LV) global systolic function at rest with a high certainty for normal subjects.

关 键 词：右心室体积 射血分数 磁共振电影测量 临床意义 心功能 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学] R331.31[医药卫生—诊断学]