A Method to Standardize Quantification of Left Atrial Scar From Delayed-Enhancement MR Images
نویسندگان
چکیده
منابع مشابه
Quantification of Delayed Enhancement MR Images
Delayed Enhancement MR is an imaging technique by which nonviable (dead) myocardial tissues appear with increased signal intensity. The extent of non-viable tissue in the left ventricle (LV) of the heart is a direct indicator of patient survival rate. In this paper we propose a two-stage method for quantifying the extent of non-viable tissue. First, we segment the myocardium in the DEMR images....
متن کاملA Fast Convex Optimization Approach to Segmenting 3D Scar Tissue from Delayed-Enhancement Cardiac MR Images
We propose a novel multi-region segmentation approach through a partially-ordered ports (POP) model to segment myocardial scar tissue solely from 3D cardiac delayed-enhancement MR images (DE-MRI). The algorithm makes use of prior knowledge of anatomical spatial consistency and employs customized label ordering to constrain the segmentation without prior knowledge of geometric representation. Th...
متن کاملValidation of a Novel Method for the Automatic Segmentation of Left Atrial Scar from Delayed-Enhancement Magnetic Resonance
Delayed-enhancement magnetic resonance imaging is an effective technique for imaging left atrial (LA) scars both preand postradio-frequency ablation for the treatment of atrial fibrillation. Existing techniques for LA scar segmentation require expert manual interaction, making them tedious and prone to high observer variability. In this paper, a novel automatic segmentation algorithm for segmen...
متن کاملAutomatic Segmentation of Left Atrial Scar from Delayed-Enhancement Magnetic Resonance Imaging
Delayed-enhancement magnetic resonance imaging is an effective technique for imaging left atrial (LA) scars both preand postradio-frequency ablation for the treatment of atrial fibrillation. Existing techniques for LA scar segmentation require expert manual interaction making them tedious and prone to high observer variability. In this paper, we propose a novel automatic segmentation algorithm ...
متن کاملLeft atrial scar burden determined by delayed enhancement cardiac magnetic resonance at post radiofrequency ablation: association with atrial fibrillation recurrence
Background Left atrial (LA) radiofrequency (RF) ablation has become routine treatment for atrial fibrillation (AF) but still suffers from AF recurrence requiring a repeat procedure. LA-RF ablation success rates vary between 53% and 85%. Delayed-enhancement Cardiac Magnetic Resonance (DE-CMR) can be used to noninvasively visualize LA hyperenhancement (scar). We have utilized DECMR to quantify LA...
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ژورنال
عنوان ژورنال: IEEE Journal of Translational Engineering in Health and Medicine
سال: 2014
ISSN: 2168-2372
DOI: 10.1109/jtehm.2014.2312191