Order Samples Gender MaleFemale Specimen Source apical core (LVAD implant)atrial appendageautopsyheart transplantmyomectomytumor resection Specimen Type atrial myocardiumapical myocardiumleft ventricular myocardiumright ventricular myocardiumseptal myocardiumtumoraortaarteryvalve Diagnosis dilated cardiomyopathyischemic heart diseasevalvular heart diseasemyocarditisamyloidsarcoidosismyxomanormal Number of Frozen Pieces OCT Block Fibrosis 0%1-5%5-10%10-20%>20% Necrosis 0%1-5%5-10%10-20%>20% Adipose Tissue 0%1-5%5-10%10-20%>20% Ice Artifact NoneMildModerateSevere