Contrast-enhanced transcranial color-coded duplex sonography: efficiency and validity.


OBJECTIVE To evaluate the diagnostic efficiency and accuracy of contrast-enhanced transcranial color-coded sonography (CE-TCCS). BACKGROUND TCCS is hampered by insufficient ultrasonic penetration in 20% of cerebrovascular patients. METHODS In 47 patients whose basal arteries could not be assessed adequately, 59 TCCS examinations were performed before… (More)