Transcranial Doppler of a paradoxical brain embolism associated with a pulmonary arteriovenous fistula.
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.
Kimura
K
K
Department of Medicine, National Cardiovascular Center, Suita, Osaka, Japan.
Minematsu
K
K
Wada
K
K
Yasaka
M
M
Tagaya
M
M
Kuribayashi
S
S
Yamaguchi
T
T
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