摘要
目的：本研究主要探讨门控心肌灌注显像诊断扩张型心肌病患者左心室收缩不同步的价值。方法选取在本院接受核素心肌灌注显像的扩心病患者共47例，根据心电图Q RS波时限分为Q RS波正常组（20例）和Q RS波增宽组（27例）；选取同时期35例正常受检者作为正常对照组。入选对象行99m Tc‐MIBI心肌灌注显像，观察门控数据，计算不同步指数（AI）以及左室射血分数（EF）、舒张末容积（EDV ）、收缩末容积（ESV ）等。运用方差分析比较各组间指标，运用秩和检验AI差异，以 P＜0．05作为差异具有统计学意义。结果三组EF之间均存在显著差异（ P＜0．001）；QRS增宽组13例为间隔‐侧壁收缩延迟，7例为前壁‐后壁收缩延迟，A I在2～5之间，Q RS波正常组中有2例存在间隔‐侧壁收缩延迟，AI分别为2、3，两组AI差异具有统计学意义（ P ＝0．03）。结论该方法能够直观了解左心室各壁运动的协调性，判断左室收缩延迟的具体部位和延迟程度，对左室不同步的诊断和治疗具有一定价值。
Objective Our study focused on gated myocardial perfusion imaging in the diagnosis of patients with left ven‐tricular dyssynchrony .Methods 47 cases with DCM underwent gated myocardial perfusion imaging ware enrolled .All ca‐ses were grouped according to the duration of QRS ：QRS normal group and QRS duration extend group .35 cases of nor‐mal subjects in the same period were taken as normal control group .99m Tc‐MIBI myocardial perfusion imaging was conduc‐ted .AI were calculated ,and EF ,EDV and ESV was recorded .Each group was compared using ANOVA .P〈0 .05 was used as a statistically significant difference .Results There were significant differences of EF （ P〈0 .001） .QRS duration extened group ：septum‐lateral contraction delays were observed in 13 cases ,and anterior‐posterior delays in 7 cases .AI was between 2 to 5 .QRS duration normal group ：Interval‐septal contraction delays were observed in 2 cases ,AI were 2 , 3 respectively .AI difference between the two groups was statistically significant .Conclusion The method could observe and locate the coordination of left ventricular contraction intuitively ,and could be helpful in the diagnosis and treatment of ventricular dyssynchrony .
出处
《医学影像学杂志》
2014年第12期2102-2105,2124,共5页
Journal of Medical Imaging
基金
江苏省无锡市科技局科技支撑计划(社会发展)(编号:CSE01N1214)
关键词
门控心肌灌注显像
体层摄影术
发射型计算机
单光子
心肌病
扩张型
左室不同步
心脏再同步治疗
Gated myocardial perfusion imaging
tomography
Emission-computed
Single-photon
Cardiomyopathy
dilated
Left ventricular dyssynchrony
Cardiac resynchronization therapy
