Pitfalls in Diagnosing PFO: Characteristics of False-Negative Contrast Injections during Transesophageal Echocardiography in Patients with Patent Foramen Ovales
Background Contrast injections during transesophageal echocardiography for patent foramen ovale (PFO) detection may be false negative. The characteristics of false-negative injections were studied retrospectively. Methods Contrast transesophageal echocardiography was analyzed…