Subclavian Artery

39  Subclavian Artery


F. Goetz, A. Giesemann


In this chapter, some rare combinations of trunk formations have not been included. A separate origin of the inferior thyroid, suprascapular, and transverse cervical artery occurs in about 5% of all cases. A similar frequency has been described for a separate origin of the deep cervical and the supreme intercostal artery, which are the main branches of the costocervical trunk. 18


39.1  Variations of the Arteries from the Distal Subclavian Artery (85%)



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Fig. 39.1 “Normal situation” as shown in textbooks (30%). The thyrocervical trunk is formed by the inferior thyroid, suprascapular, and transverse arteries of the neck. Schematic (a) and X-ray angiography, anterior view, right subclavian artery injection (b). 1 Ascending cervical artery; 2 vertebral artery; 3 internal thoracic artery.



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Fig. 39.2 The internal thoracic artery originates from the thyrocervical trunk (10%). Schematic.



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Fig. 39.3 Only the inferior thyroid and the suprascapular artery form a common stem (30%). Schematic (a) and X-ray angiography, anterior view, left subclavian artery injection (b). 1 Thyrocervical trunk; 2 vertebral artery; 3 costocervical trunk; 4 internal thoracic artery.




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Fig. 39.5 Two trunks: the inferior thyroid with the suprascapular artery and the transverse colli with the internal thoracic artery (1%). Schematic.



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Fig. 39.6 Two trunks: the inferior thyroid with the transverse colli arteries and the suprascapular with the internal thoracic arteries (4%). Schematic (a) and X-ray angiography, anterior view, right subclavian artery injection (b). 1 Ascending cervical artery; 2 inferior thyroid artery; 3 vertebral artery; 4 internal thoracic artery.

Oct 29, 2018 | Posted by in CARDIOVASCULAR IMAGING | Comments Off on Subclavian Artery
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