Indications for Magnetic Resonance Angiography
Prior to the availability of computed tomography (CT), Doppler ultrasound (D-US), or magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA), X-ray angiography was commonly the ultimate diagnostic procedure of choice in suspected mass lesions and vascular diseases [1, 4]. Although cut-film and digital subtraction angiography (DSA) — considered together in this chapter as angiography — are the gold standard for the assessment of vascular structures, the invasiveness of these procedures makes them difficult studies to perform, with an essential patient risk of mortality and morbidity resulting from these procedures, especially in neuroradiology.
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