期刊文献+

不同处理方法对心肌灌注显像心功能指标的影响 被引量:5

Influence of different image processing methods on mensuration of cardiac function in myocardial perfusion imaging
原文传递
导出
摘要 目的评价心肌灌注显像后处理时采用FBP与不同迭代次数和子集数的OSEM重建法所得心功能指标结果是否存在差异,并推荐适于临床的处理参数。方法回顾性分析2012年1月到2014年12月间行心肌灌注显像的66例患者资料,其中男33例,女33例,年龄18~77岁。使用FBP及OSEM(4~16个子集数以及2~4次迭代次数,共5种方法)重建后,通过QGS分析心功能参数(EDV、ESV、LVEF)是否存在差异,并将所得结果与心脏超声结果进行比对。采用单因素方差分析分析数据。结果方差分析结果示,6种重建方法所得的LVEF[(66.14±11.12)%、(75.05±12.10)%、(70.09±11.27)%、(66.88±10.38)%、(64.97±10.25)%和(62.58±9.84)%]、EDV[(77.32±27.58)、(67.97±27.56)、(75.10±27.89)、(81.03±28.11)、(84.94±29.07)和(89.98±29.71) ml]和ESV[(28.71±10.04)、(19.71±16.51)、(25.13±17.66)、(29.01±18.47)、(32.10±19.63)和(35.83±20.41) ml]差异有统计学意义(F值:10.73、4.89和5.97;均P〈0.05)。OSEM(2次迭代、12个子集)与心脏超声结果最为接近。结论6种心肌灌注显像图像后处理方式中,OSEM中2次迭代、12个子集重建方法较适合临床应用。 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 uhrasonography. 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 uhrasonography. 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.
出处 《中华核医学与分子影像杂志》 北大核心 2017年第9期564-567,共4页 Chinese Journal of Nuclear Medicine and Molecular Imaging
关键词 心肌灌注显像 心室功能 体层摄影术 发射型计算机 单光子 体层摄影术 X线计算机 图像处理 计算机辅助 99M锝甲氧基异丁基异腈 Myocardial perfusion imaging Ventricular function Tomography, emission-computed, single-photon Tomography, X-ray computed Image processing, computer-assisted Technetium Tc 99m sestamibi
  • 相关文献

参考文献2

二级参考文献15

  • 1Knoll P, Kotalova D, KOchle G, et al. Comparison of advanced iterative reconstruction methods for SPECT/CT. Med Phys, 2012,22(1) : 58-69.
  • 2Livieratos L, Mohan H, Gnanasegaran G, et al. Comparison of 10 versus 20 min SPECT 99mTc-MDP bone scans: Use of 3D-OS EM image reconstruction with distance-dependent resolution rood eling. Nucl Med Commun, 2010,31(12) : 1045-1053.
  • 3Lyra M, Ploussi A. Filtering in SPECT image reconstruction. Int J Biomed Imaging, 2011:693795.
  • 4Seret A, Forthomme J. Comparison of different types of commer eia| filtered back projection and ordered-subset expectation maxi mization SPECT reconstruction software. J Nucl Med Technol 2009,37(3):179 187.
  • 5Bitarafan A, Rajahi H. The effect of filtrating and reconstruction method on the left ventricular ejection fraction derived from GSPECT: A statistical comparison of angiography and echocar- diography. Ann Nucl Med, 2008,22(8):707-713.
  • 6Beekman FJ, S[iipen ET, Niessen WJ. Selection of task-depend- ent diffusion filters for the post-processing of SPECT images. PhysMedBiol, 1998,43(6):1713-1730. ".
  • 7R6mer W, Reichel N, Wija HA, et al. Isotropic reconstruction of SPECT data Using OSEM3D: Correlation with CT. Acad Radiol, 2006,13(4) : 496-502.
  • 8Ceriani L, Ruberto T, Delaloye AB, et al. Three-dimensional or- dered subset expectation maximization iterative protocol for evalu- ation of left ventricular volumes and function by quantitative gated SPECT: A dynamic phantom study. J Nucl Med Technol, 2010, 38(1) :18-23.
  • 9Leong LK, Kruger RL, O'Connor MK. A comparison of the uni formity requirements for SPECT image reconstruction using FBP and OSEM techniques. J Nuel Med Teehnol, 2001,29 (2) : 79- 83.
  • 10Duarte DD, Monteiro MS, El Hakmaoui F, et al. Influence of reconstruction parameters during filtered back projection and or-dered-subset expectation maximization in lhe measurement of lhe left-ventricular w)lumes and function during gated SPECT. J Nucl Med Technol, 2012,4{)(1) :29 36.

共引文献8

同被引文献24

引证文献5

二级引证文献4

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部