THE ROLE OF MR IMAGING IN DIAGNOSIS OF ACQUIRED. DISEASES OF THE THORACIC AORTA

Abstract

Magnetic Resonance Imaging (MR!) has several advantages which render it suitable for imaging the vascular system. These advantages includes: a. Intrinsic contrast between the blood pool and vascular structures, negating the need for contrast media. b. Multiple imaging planes, providing the ability to

interrogate either parallel or perpendicular to the course of the vessel. c. Wide range of soft-tissue contrast, permitting the

depiction of perivascular as well as vascular structures.

d. Avoidance of ionizing radiation as well as avoidance of contrast media, easing the concern for acquiring sequential investigation. e. The ability to evaluate and quantify both morphology and function of the vascular system.

Being effective non invasive technique, it is more suitable for evaluation of thoracic aortic disease. Also, for evaluation of the asymptomatic patient. The specific indications for using MRI in diagnosis of

acquired diseases of the thoracic aorta are as follows: