MR Angiography Lower Body and Its Purpose

Learn about the MR Angiography lower body test and its purpose. Read our guide to understand the procedure and how it helps diagnose blood vessel issues.

This is a specific test related to the blood vessels of the lower body and the doctor suggests this test when a patient is having any related abnormalities. This test is also used to examine:

• Abdominal aorta
• Iliac arteries
• Femoral arteries
• Popliteal arteries
• Tibial arteries
• Peroneal arteries
• Other arteries supplying the lower body and legs
• Blood flow through the vessels
• Narrowing or blockage of arteries

Purpose of MR Angiography Lower Body

• Suspected peripheral artery disease
• Leg pain during walking
• Suspected arterial narrowing
• Suspected blood vessel blockage
• Poor blood circulation in the legs
• Coldness or colour changes in the lower limbs
• Non-healing wounds or ulcers
• Suspected vascular injury
• Suspected aneurysm
• Planning for vascular surgery or angioplasty
• Follow-up of selected vascular conditions

MR Angiography for Peripheral Artery Disease

MRA can help assess:

• Location of arterial narrowing
• Degree of narrowing
• Complete or partial blockage
• Blood flow to the lower limbs
• Length of the affected blood vessel
• Collateral blood vessels

MR Angiography for Leg Pain

• Arterial narrowing
• Blood vessel blockage
• Reduced blood supply
• Peripheral artery disease
• Other vascular abnormalities

MR Angiography for Blood Vessel Blockage

It may help evaluate:

• Location of the blockage
• Severity of the blockage
• Length of the affected artery
• Blood flow beyond the affected area
• Alternative blood vessels supplying the tissues

MR Angiography for Non-Healing Wounds

MRA may help doctors assess:

• Blood supply to the affected area
• Arterial narrowing
• Possible blood vessel blockage
• Severity of vascular disease
• Blood flow to the lower limbs

How Is MR Angiography Lower Body Performed?

• The patient is asked to remove jewellery and other metallic objects.
• The patient lies on the MRI examination table.
• The lower body is positioned appropriately for imaging.
• A specialised MRI coil may be used.
• Contrast material may be injected through a vein if required.
• The table moves through the MRI scanner.
• Images of the blood vessels are obtained.
• The patient needs to remain still during the examination.

MR Angiography Lower Body With or Without Contrast

Contrast may help:

• Improve visualisation of arteries
• Identify narrowing or blockage
• Evaluate blood flow
• Detect vascular abnormalities
• Assist with treatment planning

Preparation for MR Angiography Lower Body

• Inform the healthcare team about pacemakers or implanted medical devices.
• Mention previous surgeries involving metal implants.
• Inform the imaging centre about pregnancy or possible pregnancy.
• Remove jewellery, watches, and other metallic objects.
• Follow fasting instructions if contrast is planned.
• Inform the healthcare team about previous reactions to MRI contrast agents.

Benefits of MR Angiography Lower Body

• Provides detailed images of blood vessels
• Helps detect arterial narrowing
• Identifies possible blood vessel blockage
• Evaluates blood flow to the lower body and legs
• Useful for assessing peripheral artery disease
• Helps detect selected vascular abnormalities
• Can assist in planning treatment
• Provides images without using ionising radiation
• Can be performed with or without contrast
• May evaluate a large vascular area in a single examination

Who May Need MR Angiography Lower Body?

• Persistent leg pain
• Pain while walking
• Poor circulation in the lower limbs
• Cold feet or legs
• Changes in skin colour
• Non-healing wounds or ulcers
• Suspected peripheral artery disease
• Suspected arterial blockage
• Abnormal Doppler ultrasound findings
• Need for vascular treatment planning

Limitations of MR Angiography Lower Body

• The examination may take longer than CT angiography.
• Patients need to remain still during the scan.
• Certain implants or devices may not be suitable for MRI.
• Some patients may experience claustrophobia.
• Very small blood vessels may sometimes be difficult to evaluate.
• Additional tests such as Doppler ultrasound, CT angiography, or conventional angiography may be required in some cases.