title: Transcranial Doppler of a paradoxical brain embolism associated with a pulmonary arteriovenous fistula.
abstract: We herein report the case of a patient who had paradoxical brain embolism owing to a pulmonary arteriovenous fistula (PAVF) who was diagnosed as having a right-to-left shunt by transcranial Doppler (TCD) with saline contrast medium. TCD with saline contrast medium failed to detect any high-intensity transient signals immediately after catheter embolization of the PAVF. Thus, TCD with saline contrast medium was useful for identifying the presence of a right-to-left shunt and for confirming that the shunt had been obliterated after endovascular treatment.
authors.affiliation: Department of Medicine, National Cardiovascular Center, Suita, Osaka, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Kimura
authors.forename: K
authors.initials: K
authors.lastname: Minematsu
authors.forename: K
authors.initials: K
authors.lastname: Wada
authors.forename: M
authors.initials: M
authors.lastname: Yasaka
authors.forename: M
authors.initials: M
authors.lastname: Tagaya
authors.forename: S
authors.initials: S
authors.lastname: Kuribayashi
authors.forename: T
authors.initials: T
authors.lastname: Yamaguchi
mesh_terms: D001164:Arteriovenous Fistula / Q000150:complications* / Q000000981:diagnostic imaging / Q000628:therapy; D002533:Cerebral Angiography; D019320:Embolism, Paradoxical / Q000000981:diagnostic imaging*; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D007089:Image Enhancement; D020766:Intracranial Embolism / Q000000981:diagnostic imaging*; D008168:Lung / Q000098:blood supply*; D008875:Middle Aged; D016896:Treatment Outcome; D017585:Ultrasonography, Doppler, Transcranial