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首页> 外文期刊>Indian Journal of Nuclear Medicine >Do reconstruction filters really effect the volume and ejection fraction calculation with 99mTc-sestamibigated myocardial SPECT?
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Do reconstruction filters really effect the volume and ejection fraction calculation with 99mTc-sestamibigated myocardial SPECT?

机译：使用99mTc固定的心肌SPECT重建过滤器是否真的影响体积和射血分数的计算？

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Background:ECG -gated myocardial perfusion imaging is a sensitive test for diagnosis of ischemia as well as scarred myocardium. It provides additional information on global and regional myocardial contractile function. A number of methods are available to calculate left ventricular volumes and ejection fractions, which depends on various technical and patients specific factor.Objective:This study was carried out to measure effect of reconstruction filter in calculations of left ventricularend diastolic volume (EDV) and end systolic volume (ESV) and left ventricular ejection fraction (LVEF) from 99mTc-sestamibi myocardial perfusion imaging.Materials and Methods:99mTc-sestamibi-gated SPECT myocardial perfusion imaging was performed in 90 patients. Studies were reconstructed with Butterworth and Metz filters.Results:Mean ejection fraction with Butterworth and Metz filter are 64.3 and 64.2, respectively. Mean EDV is for Butterworth and Metz filters are 77.3 and 78.5 ml, respectively. While ESV was 36.49 and 36.63 ml, stroke volume calculated was 41.54 and 42 ml for Butterworth and Metz filters, respectively. Pearsons’s correlation coefficients between results calculated with Metz and Butterworth filters were 0.994 for ESV, 0.996 for EDV, 0.966 for LVEF and 0.925 for SV. Student ‘t’ test was applied on the data and no significant difference was noted between parameter estimated by Butterworth or Metz filter.Conclusion:This study shows that difference of filter application has no significant effect in computing left ventricular function parameters.
机译：背景：心电图门控心肌灌注成像是诊断缺血和心肌疤痕的灵敏测试。它提供了有关全局和区域心肌收缩功能的其他信息。有多种方法可以计算左心室容积和射血分数，这取决于各种技术和患者的具体因素。目的：本研究旨在测量重建滤器在计算左心室舒张末期容积（EDV）和末梢时的作用。 99mTc-司他他比心肌灌注显像的收缩期容积（ESV）和左心室射血分数（LVEF）。材料与方法：对90例患者进行了99mTc-他司他门定的SPECT心肌灌注成像。结果：Butterworth和Metz滤波器的平均射血分数分别为64.3和64.2。 Butterworth和Metz过滤器的平均EDV分别为77.3 ml和78.5 ml。 ESV为36.49和36.63 ml，而Butterworth和Metz过滤器的计算行程分别为41.54和42 ml。用Metz和Butterworth滤波器计算的结果之间的Pearsons相关系数，对于ESV为0.994，对于EDV为0.996，对于LVEF为0.966，对于SV为0.925。对数据进行了学生“ t”检验，Butterworth或Metz滤波器估计的参数之间没有发现显着差异。结论：这项研究表明，滤波器应用的差异在计算左心室功能参数方面没有显着影响。

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