CDEMRIS fibrosis scar challenge dataset

<div><h2>The Dataset</h2></div>The dataset includes Late Gadolinium enhancement (LGE) cardiovascular magnetic resonance (CMR) imaging used to visualise regions of fibrosis and scarring in the left atrium (LA) myocardium. <div><br></div><div>This can be important for treatment stratification of patients with atrial fibrillation (AF) and for assessment of treatment after radio frequency catheter ablation (RFCA). </div> <div>The datasets included are from a <a href="https://www.doc.ic.ac.uk/~rkarim/la_lv_framework/index.html">segmentation challenge</a> where the aim was to create a benchmarking framework for algorithms classifying fibrosis and scar from LGE CMR images. <div><div><br></div><div><h2>Dataset contents</h2></div><div><div>The dataset includes two subsets called <b>pre</b> and <b>post</b>. These refer to the time-points when the images were acquired. The <b>pre </b>data contains pre-ablation imaging of fibrosis. The 'post' data contains the post-ablation imaging data. There are 30 datasets in each <b>pre </b>and <b>post</b> folders. </div><div><br></div><div>The folders are arranged as pXX, where XX is the case number. Within each folder you will find two images in <a href="http://teem.sourceforge.net/nrrd/format.html">NRRD</a> format. </div><div><br></div><div>These images follow a naming convention: </div><div><ol><li>de_xx_nn</li><li>la_seg_xx_nn</li></ol></div><div><ul><li>The 'xx' can be 'a' or 'b'. The 'a' refers to the pre-scan and the 'b' refers to the post-scan.</li><li> The 'nn' refers to the case number</li></ul></div><div><br></div><div>Note the de_xx_nn refers to the delayed-enhancement (DE) scan. And the la_seg_xx_nn refers to the binary segmentation of the left atrial endocardium. The segmentation is registered to the delayed-enhancement scan. The images will generally be of varying quality. </div><div> </div><div><br></div></div><div><h2>References</h2></div><div>Karim et. al. <i>Evaluation of current algorithms for segmentation of scar tissue from late Gadolinium enhancement cardiovascular magnetic resonance of the left atrium</i> in <b>Journal of Cardiovascular Magnetic Resonance</b>, 15(105), 2013. <a href="http://jcmr-online.biomedcentral.com/articles/10.1186/1532-429X-15-105">Link</a></div><div><br></div></div>