Research Article

Diagnosis of Patent Foramen Ovale: The Combination of Contrast Transcranial Doppler, Contrast Transthoracic Echocardiography, and Contrast Transesophageal Echocardiography

Table 4

Comparison of the diameter and tunnel length of PFO with different shunts.

MildSevere

The diameter of PFO right entrance (mm)3.135<0.05
The diameter of PFO left exit (mm)āˆ’2.582<0.05
The tunnel length of PFO (mm)1.358>0.05

PFO: patent foramen ovale.