Comparison of shortened gated myocardial perfusion imaging processed with „Myovation Evolution” with full time study

Filipczak, Krzysztof; Kuśmierek, Jacek; Dróżdż, Jarosław; Chiżyński, Krzysztof; Kasprzak, Jarosław D.; Peruga, Jan Z.

doi:10.5603/nmr.a2016.0041

Cited by 2 publications

(5 citation statements)

References 12 publications

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“…Interestingly, no relationship between occurrence of those defects and patient obesity expressed in terms of a body mass index was found. The same trend (lower indices of diagnostic efficacy obtained for a shortened study) although less noticeable, could be observed in our previous work presenting results of interpretation of studies of the same patients but using different, segmental method [5]. Attenuation correction reduced differences between indices of diagnostic efficacy of full time and half time studies considerably.…”

Section: Originalsupporting

confidence: 59%

“…They obtained agreement between full time and half time studies equal to 95% without AC and 96% with AC [6], 96% with 100% agreement in a clinical interpretation [7], and 83% to 96% (in case of acceptance of minor inconsistencies) [8]. A more detailed analysis of results presented in specified above publications was provided in our previous publication [5].…”

Section: Originalmentioning

confidence: 92%

“…According to our previous publication concerning this topic [5], reconstructed images obtained from shortened studies were of good quality, comparable with full time studies. This good quality was attained thanks to implementation of three-dimensional reconstruction procedure with resolution recovery.…”

Section: Originalmentioning

confidence: 92%

“…Study acquisition and reconstruction was presented in details in our previous publication [5]. In short: SPECT/CT studies were acquired with a hybrid Infinia 2 Hawkeye 4 (GE Healthcare) camera after administration of 99m Tc-MIBI, in activity of 11MBq per kilogram of body mass.…”

Section: Myocardial Perfusion Imaging -Study Acquisition and Reconstrmentioning

confidence: 99%

“…We showed in our previous publication concerning this topic [5], that making use of "Myovation Evolution", a part of "Evolution for Cardiac" package, requires application of attenuation correction (AC). In the present work image evaluation method taking into account all available slices in all three planes instead of only four selected slices used in a standard method was applied.…”

Section: Introductionmentioning

confidence: 99%

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Reduced-time myocardial perfusion study processed with “Myovation Evolution” — assessment of diagnostic efficacy

et al. 2017

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Section: Originalsupporting

confidence: 59%

Section: Originalmentioning

confidence: 92%

Section: Originalmentioning

confidence: 92%

Section: Myocardial Perfusion Imaging -Study Acquisition and Reconstrmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Reduced-time myocardial perfusion study processed with “Myovation Evolution” — assessment of diagnostic efficacy

et al. 2017

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Evaluation of Left Ventricular Volumes and Ejection Fraction from Gated Myocardial Perfusion SPECT Processed with “Myovation Evolution”: Comparison of Three Automated Software Packages using Cardiac Magnetic Resonance as Reference

Calandri

Guana

Pultrone

et al. 2021

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Backgound: The development of resolution recovery (RR) algorithms has made it possible to preserve good quality of cardiac images in spite of reduced number of counts during study acquisition. Objective: Our purpose was to evaluate the performance of three different software packages in the quantification of left ventricular (LV) end-diastolic volume (EDV), end-systolic volume (ESV) and ejection fraction (EF) from gated perfusion SPECT, applying a resolution recovery (RR) algorithm (GE Myovation Evolution), respect to cardiac MRI (cMRI) as gold standard. Methods: We retrospectively enrolled 21 patients, with suspected or known coronary heart disease. Images at rest were reconstructed by filtered back projection (FBP) and by an iterative protocol with the RR algorithm. EDV, ESV and LVEF were automatically computed employing Quantitative gated SPECT (QGS), Myometrix (MX) and Corridor 4DM (4DM). Any difference in EDV, ESV and LVEF calculation between cMRI and the three packages (with FBP and iterative reconstruction with RR) was tested using Wilcoxon or paired t-test, with assumption of normality assessed using ShapiroWilk test. Agreement between imaging reconstruction algorithms and between gated-SPECT software packages and cMRI was studied with Pearson’s (r) or Spearman’s (R) correlation coefficients and Lin’s concordance correlation coefficient (LCC). Results: Intra-software evaluation always revealed very strong correlation coefficients (R, r ≥ 0.8) and excellent LCC coefficients (LCC > 0.95), except for LCC coefficient between MX-FBP and MX-RR in EDV evaluation, nevertheless considered very good (LCC = 0.94). EDV and ESV had significantly lower value when calculated with RR algorithm respect to FBP reconstruction in QGS and MX. LVEF estimation did not show significant differences for QGSFBP, QGS-RR, MX and 4DM-RR with respect to cMRI. Results: Intra-software evaluation always revealed very strong correlation coefficients (R, r ≥ 0.8) and excellent LCC coefficients (LCC > 0.95), except for LCC coefficient between MX-FBP and MX-RR in EDV evaluation, nevertheless considered very good (LCC = 0.94). EDV and ESV had significantly lower value when calculated with RR algorithm respect to FBP reconstruction in QGS and MX. LVEF estimation did not show significant differences for QGSFBP, QGS-RR, MX and 4DM-RR with respect to cMRI. Conclusion: All reconstruction methods sistematically understimate EDV and ESV, with higher underestimation applying only the RR. No significant differences were observed between 4DM -RR and 4DM-FBP, for each parameter, when 4DM package was used.

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Comparison of shortened gated myocardial perfusion imaging processed with „Myovation Evolution” with full time study

Abstract: BACKGROUND:The work compares the results of shortened gated myocardial perfusion imaging (MPI), processed with "Myovation Evolution" software, with a study performed in a standard way.

Cited by 2 publications

References 12 publications

Reduced-time myocardial perfusion study processed with “Myovation Evolution” — assessment of diagnostic efficacy

Reduced-time myocardial perfusion study processed with “Myovation Evolution” — assessment of diagnostic efficacy

Evaluation of Left Ventricular Volumes and Ejection Fraction from Gated Myocardial Perfusion SPECT Processed with “Myovation Evolution”: Comparison of Three Automated Software Packages using Cardiac Magnetic Resonance as Reference

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