Amyloidosis produces typical signs on ECG (low voltage in the limb and chest leads and conduction abnormalities), echocardiography (prominent diastolic dysfunction, symmetric LV wall thickening, and a granular, “sparkling” appearance of the myocardium), and amyloid deposits on myocardial bioptates.

 

Compilation by Dr. Samad Ali Moradi; "Dilated cardiomyopathy" article from the e-journal of the ESC VOL.13,N°19 - 07 APR 2015, Also according to author's work experience and guidelines.