Vascular Diagnostics

MRA of the abdominal aorta

MRA of the abdominal aorta

MRA of the thoracic aorta

MRA of the thoracic aorta

MRA of the temporal blood vessels

MRA of the temporal blood vessels

 

 

 

 

Imaging processes such as magnetic resonance tomography (MRT), computed tomography (CT) or x-ray diagnostics are available to generate an image of blood vessels, also known as an angiogram. A contrast agent is injected, the aim being to make the interior of the blood vessels of the region being examined directly visible, as they are filled with the contrast agent. Angiograms are carried out to diagnose various problems of the blood vessels and circulation such as occlusions and narrowing, injuries, aneurysms, malformation or anomalies.

A survey of the individual methods:

CT-angiogram (CTA)

In a CTA the blood vessels are depicted with the aid of multi-layered spiral computed tomography. The contrast agent is rapidly injected into a vein, allowing separate layers to be registered, from which a 3-D image can be produced of the arterial region being examined.

MR-angiogram (MRA)

For a magnetic resonance angiogram, the techniques employed may be based on the administering of MRT contrast agents or avoid the use of an injection. The MRA permits the recording of 3-D data sets, making it possible to view the arterial region from various perspectives.