title: MR angiography of aberrant left subclavian artery arising from right-sided thoracic aortic arch.
abstract: Right-sided thoracic aortic arch with aberrant left subclavian artery is an uncommon entity that is usually asymptomatic, but may present in adults with symptoms of dysphagia. Cross-sectional imaging such as CT or MR is often required to conclusively diagnose this condition, which may be suggested by chest radiograph or barium swallow. MRI including TRICKS (time-resolved imaging of contrast kinetics) magnetic resonance angiography (MRA) was utilized in the evaluation of a 40-year-old man presenting with dysphagia and abnormal barium swallow study. TRICKS MRA is a recently developed MRA technique, which can provide multiple high-resolution images of the thoracic vessels with a high temporal resolution without the need for timing doses of gadolinium contrast or multiple injections.
authors.affiliation: Department of Radiology, Northwestern Memorial Hospital, Chicago, Illinois 60611, USA.
authors.forename: J
authors.initials: J
authors.lastname: Salanitri
mesh_terms: D000328:Adult; D001013:Aorta, Thoracic / Q000002:abnormalities*; D001466:Barium Sulfate; D003287:Contrast Media; D003680:Deglutition Disorders / Q000209:etiology; D005764:Gastroesophageal Reflux / Q000209:etiology; D006801:Humans; D018810:Magnetic Resonance Angiography / Q000379:methods; D008297:Male; D013348:Subclavian Artery / Q000002:abnormalities*
chemical_list: D003287:Contrast Media; D001466:Barium Sulfate