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Feature tracking MRI for right ventricle

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https://www.readbyqxmd.com/read/28894923/differences-in-myocardial-strain-between-pectus-excavatum-patients-and-healthy-subjects-assessed-by-cardiac-mri-a-pilot-study
#1
André Lollert, Tilman Emrich, Jakob Eichstädt, Christoph Kampmann, Tariq Abu-Tair, Salmai Turial, Christoph Düber, Karl-Friedrich Kreitner, Gundula Staatz
OBJECTIVES: To evaluate differences in myocardial strain between pectus excavatum (PE) patients and healthy subjects (HS) assessed by cardiac MRI using the feature-tracking algorithm. METHODS: Cardiac MRI was performed in 14 PE patients and 14 HS (9:5 male to female in each group; age 11-30 years) using a 3T scanner. Post-examination analysis included manual biventricular contouring with volumetry and ejection fraction measurement by two independent radiologists...
September 11, 2017: European Radiology
https://www.readbyqxmd.com/read/28856524/4d-modelling-for-rapid-assessment-of-biventricular-function-in-congenital-heart-disease
#2
K Gilbert, B Pontre, C J Occleshaw, B R Cowan, A Suinesiaputra, A A Young
Although more patients with congenital heart disease (CHD) are now living longer due to better surgical interventions, they require regular imaging to monitor cardiac performance. There is a need for robust clinical tools which can accurately assess cardiac function of both the left and right ventricles in these patients. We have developed methods to rapidly quantify 4D (3D + time) biventricular function from standard cardiac MRI examinations. A finite element model was interactively customized to patient images using guide-point modelling...
August 30, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28528164/mri-derived-myocardial-strain-measures-in-normal-subjects
#3
Ha Q Vo, Thomas H Marwick, Kazuaki Negishi
OBJECTIVES: The aim of this study was to perform a systematic review and meta-analysis to estimate the normal ranges of magnetic resonance imaging (MRI)-based feature tracking (FT) and to identify sources of variations. Similar analyses were also performed for strain encoding, displacement encoding with stimulated echoes, and myocardial tagging. BACKGROUND: MRI-FT is a novel technique for quantification of myocardial deformation using MRI cine images. However, the reported 95% confidence intervals (CIs) from the 2 largest studies have no overlaps...
May 11, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27389449/assessment-of-myocardial-function-using-mri-based-feature-tracking-in-adults-after-atrial-repair-of-transposition-of-the-great-arteries-reference-values-and-clinical-utility
#4
Oktay Tutarel, Stefan Orwat, Robert M Radke, Mechthild Westhoff-Bleck, Christina Vossler, Christoph Schülke, Helmut Baumgartner, Johann Bauersachs, Philipp Röntgen, Gerhard-Paul Diller
BACKGROUND: Echocardiographic parameters of ventricular deformation of the systemic right ventricle (sRV) predict adverse clinical outcome in patients after atrial repair of transposition of the great arteries (TGA). We assessed myocardial deformation on cardiac MRI (CMR) and correlated these with clinical and conventional CMR parameters in TGA patients. METHODS: Retrospective analysis of CMR studies in 91 TGA patients (66% male; mean age 30.1±5.1years) at two tertiary adult congenital heart centers was conducted...
October 1, 2016: International Journal of Cardiology
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