Influence of different image processing methods on mensuration of cardiac function in myocardial perfusion imaging
10.3760/cma.j.issn.2095-2848.2017.09.009
- VernacularTitle:不同处理方法对心肌灌注显像心功能指标的影响
- Author:
Fan HU
;
Xiaotian XIA
;
Xiao ZHANG
;
Xiaoli LAN
;
Jia HU
;
Yongxue ZHANG
- Keywords:
Myocardial perfusion imaging;
Ventricular function;
Tomography,emission-computed,single-photon;
Tomography,X-ray computed,Image processing,computer-assisted;
Technetium Tc 99m sestamibi
- From:
Chinese Journal of Nuclear Medicine and Molecular Imaging
2017;37(9):564-567
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the influences of FBP and OSEM (with different iteration numbers or subset numbers) on cardiac function parameters with MPI,and to identify a suitable clinical method.Methods The MPI of 66 patients (33 males,33 females,age range: 18-77 years) from January 2012 to December 2014 were retrospectively analyzed.The imaging data was reconstructed with FBP and 5 different OSEM (4-16 subsets and 2-4 iterations) in order to evaluate if there was any difference of cardiac function parameters calculated by QGS between the different image processing methods.In addition,the results were compared with those of cardiac ultrasonography.One-way analysis of variance was used for data analysis.Results The statistical differences of LVEF,EDV,and ESV(F values: 10.73,4.89 and 5.97,all P<0.05) were found among 6 reconstructed methods.The values of LVEF were (66.14±11.12)％,(75.05±12.10)％,(70.09±11.27)％,(66.88±10.38)％,(64.97±10.25)％,and (62.58±9.84)％.Those of EDV were (77.32±27.58),(67.97±27.56),(75.10±27.89),(81.03±28.11),(84.94±29.07),and (89.98±29.71) ml,and the ESV values were (28.71±10.04),(19.71±16.51),(25.13±17.66),(29.01±18.47),(32.10±19.63),and (35.83±20.41) ml respectively.The cardiac function parameters measured by OSEM (with 2 iterations,12 subsets) were much similar to that measured by cardiac ultrasonography.Conclusion Compared with other 5 processing methods of MPI,the OSEM (with 2 iterations,12 subsets) method may be more suitable for practical clinical application.
