[Magnetic resonance angiography of the head and neck area].
Magnetic resonance angiography is a noninvasive method in vascular imaging using non-contrast-enhanced and contrast-enhanced techniques. The contrast media used in contrast-enhanced magnetic resonance angiography are different from the X-ray contrast media and do not affect the thyroid gland or renal function. In detecting hyper-vascularized lesions in the head and neck, contrast-enhanced magnetic resonance angiography is the method of choice, which provides an acceptable quality in comparison to digital subtraction angiography. Future developments in magnetic resonance imaging techniques will cause a wider use of magnetic resonance angiography, especially in head and neck imaging. Digital subtraction angiography should therefore only be used in problem cases and for preoperative embolization.
Aschenbach
R
R
Institut für Bildgebende Diagnostik, Helios-Klinikum Erfurt GmbH, Erfurt. raschenbach@erfurt.helios-kliniken.de
Esser
D
D
D015901:Angiography, Digital Subtraction; D001165:Arteriovenous Malformations / Q000175:diagnosis; D016893:Carotid Stenosis / Q000175:diagnosis; D000075202:Contraindications; D003937:Diagnosis, Differential; D006801:Humans; D007089:Image Enhancement; D007091:Image Processing, Computer-Assisted; D018810:Magnetic Resonance Angiography; D009389:Neovascularization, Pathologic / Q000175:diagnosis; D010038:Otorhinolaryngologic Diseases / Q000175:diagnosis*; D010039:Otorhinolaryngologic Neoplasms / Q000098:blood supply / Q000175:diagnosis*; D010235:Paraganglioma / Q000098:blood supply / Q000175:diagnosis; D012680:Sensitivity and Specificity