Learn about the MR Venography Pelvis test, its purpose, and key benefits. Read our patient guide on how to prepare and what the test results indicate.
What Is MR Venography Pelvis?
This is the special type of test used to look for the blood flow through veins in the pelvic area of the body. This test is used to look for vein blocks, thrombosis, injuries and damages related to the veins of the pelvic areas. There are also various conditions which can be studied due to this test like:
• Iliac veins
• Pelvic veins
• Inferior vena cava in the lower region when included
• Femoral veins near the pelvic region
• Venous blood flow
• Narrowing of veins
• Blood clots
• Collateral veins
• Surrounding pelvic structures
What is the Purpose of MR Venography Pelvis?
Doctors may recommend the test for:
• Suspected pelvic vein obstruction
• Suspected deep vein thrombosis
• Unexplained pelvic or leg swelling
• Suspected narrowing of pelvic veins
• Chronic venous problems
• Evaluation of pelvic venous abnormalities
• Suspected vascular compression
• Assessment before selected vascular procedures
• Follow-up of known venous conditions
MR Venography for Pelvic Vein Narrowing
It may help evaluate:
• Iliac vein narrowing
• Venous compression
• Reduced blood flow
• Collateral vein formation
• Other structural venous abnormalities
MR Venography for Blood Clots
It may help identify:
• Pelvic vein thrombosis
• Iliac vein thrombosis
• Venous obstruction
• Extent of a suspected clot
• Changes associated with chronic venous disease
MR Venography for Pelvic Venous Disorders
It may help assess:
• Dilated pelvic veins
• Venous congestion
• Abnormal venous pathways
• Collateral circulation
• Structural abnormalities of the pelvic venous system
How Is MR Venography Pelvis Performed?
The procedure generally involves:
• The patient may be asked to remove jewellery and other metallic objects.
• The patient lies on the MRI examination table.
• The pelvic region is positioned for imaging.
• A specialised MRI coil may be used.
• Contrast material may be injected through a vein if required.
• The table moves into the MRI scanner.
• Multiple images of the pelvic veins are obtained.
• The patient needs to remain still during the scan.
MR Venography Pelvis With or Without Contrast
Contrast may help:
• Improve visualisation of pelvic veins
• Assess blood flow
• Identify areas of narrowing
• Evaluate suspected venous obstruction
• Assess the extent of certain vascular abnormalities
Preparation for MR Venography Pelvis
Patients may need to:
• 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 metallic objects.
• Follow fasting instructions if contrast administration is planned.
• Inform the healthcare team about previous reactions to MRI contrast agents.
• Provide previous ultrasound, CT, MRI, or vascular imaging reports if available.
Benefits of MR Venography Pelvis
• Provides detailed images of pelvic veins
• Helps evaluate venous narrowing and obstruction
• Can assess suspected blood clots
• Evaluates blood flow and venous anatomy
• Useful for examining veins that may be difficult to assess with ultrasound
• Can identify collateral veins
• Provides images of surrounding pelvic structures
• Does not use ionising radiation
• Can be performed with or without contrast in selected cases
• Helps support diagnosis and treatment planning
Who May Need MR Venography Pelvis?
• Unexplained pelvic vein abnormalities
• Suspected iliac vein obstruction
• Persistent swelling of one or both legs
• Suspected pelvic vein thrombosis
• Chronic venous symptoms
• Suspected venous compression
• Abnormal findings on ultrasound or other imaging
• Need for detailed evaluation before selected vascular procedures
Limitations of MR Venography Pelvis
• The examination may take longer than CT or ultrasound.
• Patients must remain still during the scan.
• Certain implanted devices may not be compatible with MRI.
• Some patients may experience claustrophobia.
• Image quality may be affected by movement.
• Additional tests may sometimes be required for complete evaluation.
