Abstract:
:Despite progress in ultrasonographic techniques visualisation of the origin of the vertebral arteries, particularly the left, by duplex and colour Doppler imaging, still poses a problem in a significant number of patients. In anatomical and radiological studies we demonstrated an anomalous origin in 6%, the left vertebral artery originating directly from the aorta in most cases. The origin from the subclavian artery was found to be posterior in 44% and inferior in 6%. The V1 segment of the vertebral artery (from its origin to the entry into the foramen transversarium) was tortuous in 47% of cases. These anatomical variants and variations in the course of the vessel contribute to the nonvisualisation of the origin of the vertebral artery by duplex and colour Doppler imaging. With respect to tortuosities technical modifications for better visualisation are suggested and possible implications for surgery are discussed.
journal_name
Neuroradiologyjournal_title
Neuroradiologyauthors
Trattnig S,Matula C,Karnel F,Daha K,Tschabitscher M,Schwaighofer Bdoi
10.1007/BF00602620subject
Has Abstractpub_date
1993-01-01 00:00:00pages
296-9issue
4eissn
0028-3940issn
1432-1920journal_volume
35pub_type
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