Novel technique of strain assessment utilizing feature tracking in nontagged SSFP images: validation with tagged strain analysis
نویسندگان
چکیده
منابع مشابه
CMR right ventricular strain assessment using feature tracking cine images: agreement with echocardiography
Background RV ejection fraction is the recognised marker of RV function although the assessment of deformation by strain analysis provides potential means for assessing early ventricular dysfunction before other recognised markers fall. RV strain analysis by tagging is time consuming and requires significant operator expertise due to the nature of the RV anatomy (particularly the thin free wall...
متن کاملStrain calculation from sinusoidal tagged MR images via Moire analysis
A simple algorithm is proposed for calculating strain directly from a tagged magnetic resonance (MR) image via Moiré analysis. Tagged MR images are used to obtain strains in internal organs, particularly myocardial strain. Although signal processing-based analysis has recently been investigated, the reliability of the strain can not be obtained. In the present paper, a simple, fast, and accurat...
متن کاملDifferences in left ventricular strain measurements between cine DENSE cardiac magnetic resonance and SSFP feature tracking
Background Left ventricular (LV) mechanics (e.g., strain) provide a clinically relevant description of LV function. Automated endocardial feature tracking (FT) for steady state free precession (SSFP) images is increasingly used to quantify strain, yet accuracy limitations have been noted. Furthermore, similarities between FT and global strain calculated from endocardial contour lengths have bee...
متن کاملMagnetic Resonance Derived Myocardial Strain Assessment Using Feature Tracking
PURPOSE An accurate and practical method to measure parameters like strain in myocardial tissue is of great clinical value, since it has been shown, that strain is a more sensitive and earlier marker for contractile dysfunction than the frequently used parameter EF. Current technologies for CMR are time consuming and difficult to implement in clinical practice. Feature tracking is a technology ...
متن کاملFeature tracking strain is a promising functional analysis technique in single ventricle patients
Methods We retrospectively reviewed 22 patients with a history of Fontan palliation (median age 8.2, range 2 27.5 years) who had cardiac MRIs with a Siemens 1.5 Tesla Avanto (Siemens Medical Systems) scanner, 11 with TA, 11 with HLHS. All had steady-state free precession (SSFP) sequences of 4-chamber (4ch) cine and short axis (SAx) cine stacks from cardiac base to apex. Ejection fraction (EF) w...
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ژورنال
عنوان ژورنال: Journal of Cardiovascular Magnetic Resonance
سال: 2009
ISSN: 1532-429X
DOI: 10.1186/1532-429x-11-s1-p33