This study was performed to investigate the utility of transcranial color Doppler sonography in evaluating adult @entity7026 . Twelve @entity1 with such @entity600 underwent sonography. Spectral Doppler sonographic assessment included peak systolic velocity, end diastolic velocity, and resistive index within the intracranial and extracranial vessels. Color Doppler sonography was used to visualize the site of shunting. Paired and unpaired Student's t-tests were used to determine significance of spectral findings. The nidus was seen in eight of 10 pial @entity600 . The nidi in two @entity1 were located in the parietal region and not visualized. When compared with the corresponding contralateral artery, feeding arteries (identified in all 10 of the @entity75 ) demonstrated diminished resistive indices (P = 0.09). Similarly, the end diastolic velocity was increased in all feeding arteries (P = 0.03). When compared with published normal values, the peak systolic and end diastolic velocities were significantly elevated and the resistive indices were low (P < 0.0003). Transcranial color Doppler sonography depicted the nidi of @entity2758 in 80% of cases. Feeding arteries demonstrated abnormal peak systolic velocity, end diastolic velocity, and resistive index in all cases when compared with published values. Transcranial color Doppler sonography is not a good screening tool due to limited acoustical window, but it may be useful for noninvasive study of the physiology of @entity2758 as they are treated.

Transcranial color Doppler imaging of brain XXXX in adults.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity7026 :: ('MESH:D002538', 'Disease') :: ['cerebral arteriovenous malformations'] @entity2758 :: ('MESH:D001165', 'Disease') :: ['arteriovenous malformations', 'pial arteriovenous malformations'] @entity75 :: ('MESH:D001927', 'Disease') :: ['pial lesions'] @entity600 :: ('MESH:D000014', 'Disease') :: ['malformations']
@entity2758 :: (MESH:D001165,Disease) :: ['arteriovenous malformations']
