Angiography or digital subtraction vascular imagin

Angiography or digital subtraction vascular imaging

These techniques may be indicated if a vascular lesion such as a carotid body tumour is suspected. Angiography may have a therapeutic role to play by facilitating embolisation of vascu - lar tumours prior to planned surgical procedures. Magnetic resonance angiography (MRA) o ff ers excellent resolution of vascular anatomy and is less invasive.