Research Article

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

Table 2

The pick-up rate of PFO-RLS among cTCD, cTTE, and cTEE.

Test methodAt baselineValsalva maneuver

cTCD62 (60.78%)100 (98.04%)
cTTE43 (42.16%)91 (89.22%)
cTEE48 (47.06%)98 (96.08%)

PFO: patent foramen ovale; RLS: right-to-left shunt; cTCD: contrast transcranial Doppler; cTTE: contrast transthoracic echocardiography; cTEE: contrast transesophageal echocardiography. compared with cTCD. compared with cTCD.