飞利浦工作站和西门子工作站测定门控心肌灌注显像心功能参数的比较研究  

Comparison of Cardiac Functional Parameters From Gated Myocardial Perfusion SPECT Imaging by Philips and Siemens Data Processing Systems

作　　者：蒋志新[1] 王道宇[1] 何作祥[1] 

机构地区：[1]北京协和医学院中国医学科学院阜外心血管病医院核医学科,北京市100037

出　　处：《中国循环杂志》2011年第2期109-112,共4页Chinese Circulation Journal

基　　金：十一五国家科技支撑计划(编号:2007BAI05B01)

摘　　要：目的：不同工作站作为图像重建与定量分析的平台，可能会影响门控心肌灌注显像的心功能参数，本研究就此比较飞利浦工作站与西门子工作站使用QGS软件测定的门控心肌灌注显像心功能参数。方法：连续选取51例行门控心肌灌注显像的患者，分成小心脏组（收缩末期容积〈30ml）与非小心脏组（收缩末期容积≥30ml）。分别通过飞利浦工作站与西门子工作站进行图像重建，重建条件相同，利用QGS软件对重建图像进行定量分析，计算左心室射血分数、舒张末期容积与收缩末期容积。结果：飞利浦工作站与西门子工作站之间左心室射血分数、舒张末期容积以及收缩末期容积配对t检验，差异均有统计学意义（P〈0．05）；Bland-Ahman分析95％一致性界限分别为-0．036～0．026，-3．10～8．36，-2．53～5．90。在两个工作站之间，小心脏组，左心室射血分数、舒张末期容积以及收缩末期容积，差异均有统计学意义（P〈0．05）；非小心脏组，舒张末期容积以及收缩末期容积，差异均有统计学意义（P〈0．05）；左心室射血分数，差异无统计学意义（P=0．61）。结论：飞利浦工作站与西门子工作站测定的门控心肌灌注显像心功能参数存在差异。从临床角度，两种工作站一致性尚可，可以替代使用，但同一患者的随访复查及心肌顿抑的评价仍应在同种工作站进行。Objective：Imaging data reconstruction by different workstation may affect the reproducibility of cardiac functional parameters. In this study, we compared the results of Philips and Siemens data processing systems for reconstructed cardiac functional parameters. Methods： Gated myocardial perfusion SPECT imaging of 51 patients were retrospectively analyzed. The patients were divided into 2 groups： Group 1, the patients with the end-systolic volume （ESV） 〈 30 ml, and Group 2, ESV ≥ 30 ml. Filtered backprojection was performed with identical parameters on Philips EBW workstation and Siemens SyngoMI workstation respectively. After reconstruction,the data was transferred between two systems. QGS running software was used to calculate the ESV, enddiastolic volume （EDV） ,left ventricular ejection fraction （LVEF） in each patient. Results：Significant difference was observed for LVEF, EDV and ESV from two different workstations by t value test, P 〈 0.05 respectively. Bland-Ahman plots showed the limits of agreements were - 0. 036 - 0. 03, - 3.10 - 8.36 and - 2.53 - 5.90 respectively. In Group 1, LVEF, EDV and ESV had the statistical differences between two workstations ; in Group 2, EDV and ESV also showed the statistical differences between two workstations, P 〈 0. 05 respectively. Conclusion：When gated myocardial perfusion SPECT imaging data reconstruction was respectively performed in Philips EBW and Siemens SyngoMI workstation,the different cardiac fimctional parameters could be obtained. It is better to use the same data processing system for evaluating the follow-up candition for the same patient.

关 键 词：门控心肌显像 工作站 一致性 心功能参数 

分 类 号：R541[医药卫生—心血管疾病]