Table 1. Overview of advantages and disadvantages of computer tomographic angiography (CTA) and magnetic resonance angiography (MRA).

Imaging modality	Advantages	Disadvantages
CTA	Considered current gold standard	Ionization radiation exposure
	Fast image acquisition	Risk of hypersensitivity or nephrotoxicity
	Widely available
	Can image larger BMI patients
	Accurate localization and course of perforator
	Can identify vessels down to 0.3 mm
	Excellent spatial resolution
	Easy interpretation with 2D and 3D reconstructions.
	Images can be reviewed independently
MRA	Contrast agents may have safer risk profiles, e.g., gadolinium	Longer scan time
	No ionizing radiation	Need for MR contrast agent
	Arterial and venous image acquisition in single scan	Contraindications, e.g., implantable defibrillator, metallic foreign bodies and claustrophobia
	Greater muscle to vessel contrast resolution
	Easy interpretation of 2D and 3D reconstructions
	Images can be reviewed independently

BMI, body mass index.