The advantage of ultrasonography in the diagnosis of extracranial vertebral artery dissection: Two case reports.
BACKGROUND
With the rapid development in technology of vascular imaging, the detection of artery dissection is also gradually increasing. Cervical artery dissection, including carotid artery and vertebral artery dissection, is associated in at least 20% of young adult patients with stroke. So, the diagnosis of cervical artery has become a great challenge.


METHODS
We reported 2 patients who complained of dizziness and pain, the findings of US confirmed the presence of extracranial vertebral artery dissection.


METHODS
The floating membrane in lumen and intramural hematoma were found in US, consistent with vertebral artery dissection, whereas DSA revealed no typical sign of artery dissection.


METHODS
In order to the definite diagnosis we persuaded the patients to undergo DSA, but there was no strong evidence on the diagnosis of vertebtal artery dissection.


RESULTS
The patients were diagnosed of vertebral artery dissection by US.


CONCLUSIONS
US show more advantages in diagnosis of extracranial vertebral artery dissection, might even be considered as the first choice.
Institute of Ultrasound Imaging, Chongqing Medical University, Chongqing, China Department of Neurology, Baotou Central Hospital, Baotou, Inner Mongolia, China Department of Ultrasonography, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.
Lijuan
L
Yang
Haitao
H
Ran
D000368:Aged; D015901:Angiography, Digital Subtraction; D003937:Diagnosis, Differential; D004244:Dizziness / Q000000981:diagnostic imaging / Q000503:physiopathology; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D014463:Ultrasonography; D014711:Vertebral Artery / Q000000981:diagnostic imaging*; D020217:Vertebral Artery Dissection / Q000000981:diagnostic imaging* / Q000503:physiopathology