Quantification of myocardial strain assessed by cardiovascular magnetic resonance feature tracking in healthy subjects—influence of segmentation and analysis software

Objectives Quantification of myocardial deformation by feature tracking is of growing interest in cardiovascular magnetic resonance. It allows the assessment of regional myocardial function based on cine images. However, image acquisition, post-processing, and interpretation are not standardized. We...

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Vydáno v:European radiology Ročník 31; číslo 6; s. 3962 - 3972
Hlavní autoři: Lim, Carolin, Blaszczyk, Edyta, Riazy, Leili, Wiesemann, Stephanie, Schüler, Johannes, von Knobelsdorff-Brenkenhoff, Florian, Schulz-Menger, Jeanette
Médium: Journal Article
Jazyk:angličtina
Vydáno: Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2021
Springer Nature B.V
Témata:
Cardiac
Cardiology
Chambers
Circumferences
Computer programs
Deformation
Diagnostic Radiology
Ejection fraction
Females
Image acquisition
Image segmentation
Imaging
Internal Medicine
Interventional Radiology
Magnetic resonance
Males
Mathematical analysis
Medicine
Medicine & Public Health
Neuroradiology
Post-production processing
Radiology
Resonance
Software
Standardization
Tracking
Ultrasound
Software
Healthy volunteers
Magnetic resonance imaging
Myocard
Left ventricular function
ISSN:0938-7994, 1432-1084, 1432-1084
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Shrnutí:Objectives Quantification of myocardial deformation by feature tracking is of growing interest in cardiovascular magnetic resonance. It allows the assessment of regional myocardial function based on cine images. However, image acquisition, post-processing, and interpretation are not standardized. We aimed to assess the influence of segmentation procedure such as slice selection and different types of analysis software on values and quantification of myocardial strain in healthy adults. Methods Healthy volunteers were retrospectively analyzed. Post-processing was performed using CVI 42 and TomTec. Longitudinal and radial Long axis (LAX) strain were quantified using 4-chamber-view, 3-chamber-view, and 2-chamber-view. Circumferential and radial Short axis (SAX) strain were assessed in basal, midventricular, and apical short-axis views and using full coverage. Global and segmental strain values were compared to each other regarding their post-processing approach and analysis software package. Results We screened healthy volunteers studied at 1.5 or 3.0 T and included 67 (age 44.3 ± 16.3 years, 31 females). Circumferential and radial SAX strain values were different between a full coverage approach vs. three short slices (− 17.6 ± 1.8% vs. − 19.2 ± 2.3% and 29.1 ± 4.8% vs. 34.6 ± 7.1%). Different analysis software calculated significantly different strain values. Within the same vendor, different field strengths (− 17.0 ± 2.1% at 1.5 T vs. − 17.0 ± 1.7% at 3 T, p  = 0.845) did not influence the calculated global longitudinal strain (GLS), and were similar in gender (− 17.4 ± 2.0% in females vs. − 16.6 ± 1.8% in males, p  = 0.098). Circumferential and radial strain were different in females and males (circumferential strain − 18.2 ± 1.7% vs. − 17.1 ± 1.8%, p  = 0.029 and radial strain 30.7 ± 4.7% vs. 27.8 ± 4.6%, p  = 0.047). Conclusions Myocardial deformation assessed by feature tracking depends on segmentation procedure and type of analysis software. Circumferential SAX and radial SAX depend on the number of slices used for feature tracking analysis. As known from other imaging modalities, GLS seems to be the most stable parameter. During follow-up studies, standardized conditions should be warranted. Trial registration Retrospectively registered Key Points • Myocardial deformation assessed by feature tracking depends on the segmentation procedure. • Global myocardial strain values differ significantly among vendors. • Standardization in post-processing using CMR feature tracking is essential.
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SourceType-Scholarly Journals-1
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ISSN:0938-7994
1432-1084
1432-1084
DOI:10.1007/s00330-020-07539-5