Table 1

Actual measurement of normal, diseased myocardium, mouse and humpback

ConditionQRS
duration
(millisecconds)
Axial
perimeter
(centimemters)
Circumferential
perimeter
(centimeters)
Axial
velocity
(centimeters/second)
Circumferential
velocity
(centimeters/second)
Normal802017125106
Dilated
wide QRS
19638339684
Dilated
narrow QRS
803833238206
Dilated
narrow QRS
patient
8425.522.8151135
Myocarditis
new onset
1022318.911392
Myocarditis
recovered
9819.316.99886
Mouse8–110.9543–59
Humpback
whale
150–20055
(Estimated length of conduction system)
275–366