1. Fatal ventricular fibrillation during a low-dose dobutamine stress test 
Albert Varga, MD, Eugenio Picano, MD, PhD, Ferenc Lakatos, MD 
The American Journal of Medicine 
Volume 108, Issue 4, Pages (March 2000)
DOI: /S (99)

2. Figure 1
End-systolic frames of the left ventricle in the four-chamber view at rest (left panel), the onset of the ventricular fibrillation (VF, middle panel), and the fibrillating heart with spontaneous echogenic contrast (right panel). The left ventricle is at the upper left in each frame.
The American Journal of Medicine  , DOI: ( /S (99) )