Defining the optimal temporal and spatial resolution for cardiovascular magnetic resonance imaging feature tracking

Myocardial deformation analyses using cardiovascular magnetic resonance (CMR) feature tracking (CMR-FT) have incremental value in the assessment of cardiac function beyond volumetric analyses. Since guidelines do not recommend specific imaging parameters, we aimed to define optimal spatial and tempo...

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Bibliographic Details
Published in:Journal of cardiovascular magnetic resonance 2021-05, Vol.23 (1), p.60-60, Article 60
Main Authors: Backhaus, Sören J, Metschies, Georg, Billing, Marcus, Schmidt-Rimpler, Jonas, Kowallick, Johannes T, Gertz, Roman J, Lapinskas, Tomas, Pieske-Kraigher, Elisabeth, Pieske, Burkert, Lotz, Joachim, Bigalke, Boris, Kutty, Shelby, Hasenfuß, Gerd, Kelle, Sebastian, Schuster, Andreas
Format: Article
Language:English
Subjects:
Cardiac function
Cardiovascular magnetic resonance
Congestive heart failure
Deformation analysis
Ejection fraction
Frames
Heart
Heart Ventricles - diagnostic imaging
Humans
Image acquisition
Magnetic Resonance Imaging
Magnetic Resonance Imaging, Cine
Medical imaging equipment
Myocardial deformation
Post-production processing
Predictive Value of Tests
Reproducibility
Reproducibility of Results
Resonance
Spatial discrimination
Spatial resolution
Strain
Strain analysis
Temporal resolution
Tracking
Ventricle
Ventricular Function, Left
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Summary:Myocardial deformation analyses using cardiovascular magnetic resonance (CMR) feature tracking (CMR-FT) have incremental value in the assessment of cardiac function beyond volumetric analyses. Since guidelines do not recommend specific imaging parameters, we aimed to define optimal spatial and temporal resolutions for CMR cine images to enable reliable post-processing. Intra- and inter-observer reproducibility was assessed in 12 healthy subjects and 9 heart failure (HF) patients. Cine images were acquired with different temporal (20, 30, 40 and 50 frames/cardiac cycle) and spatial resolutions (high in-plane 1.5 × 1.5 mm through-plane 5 mm, standard 1.8 × 1.8 x 8mm and low 3.0 × 3.0 x 10mm). CMR-FT comprised left ventricular (LV) global and segmental longitudinal/circumferential strain (GLS/GCS) and associated systolic strain rates (SR), and right ventricular (RV) GLS. Temporal but not spatial resolution did impact absolute strain and SR. Maximum absolute changes between lowest and highest temporal resolution were as follows: 1.8% and 0.3%/s for LV GLS and SR, 2.5% and 0.6%/s for GCS and SR as well as 1.4% for RV GLS. Changes of strain values occurred comparing 20 and 30 frames/cardiac cycle including LV and RV GLS and GCS (p 
ISSN:1097-6647
1532-429X
DOI:10.1186/s12968-021-00740-5