Figure 2
Comparison of electrocardiographic parameters and Q/R ratios between normal and CXMD J dogs at 6–7 months of age A. Heart rate (HR) (beats/min), PQ interval (ms), and duration of QRS complex (ms) on ECG in normal (n = 4) and CXMDJ (n = 8) dogs at 6–7 months of age. White columns indicate normal dogs, and black columns represent CXMDJ dogs. Bar shows mean +/- SE. B. Q/R ratios in limb leads I (Q/R I), II (Q/R II), III (Q/R III), and aVF (Q/R aVF) on ECG in normal (n = 4) and CXMDJ (n = 8) dogs at 6–7 months of age. White columns indicate normal dogs, and black columns represent CXMDJ dogs. Bar shows mean +/- SE.