What it is (overview)

An MRI of the hip with IV contrast is a detailed imaging test that uses a strong magnet and radio waves to create high-resolution pictures of the hip joint and surrounding tissues. “IV contrast” means a contrast dye (most commonly a gadolinium-based contrast agent) is injected into a vein during the exam to help certain structures and abnormal areas show up more clearly on the MRI images.

This test evaluates the entire hip region, including the bone (femoral head/neck, acetabulum), cartilage, labrum (the ring of cartilage around the socket), tendons and muscles, ligaments, bursae, and nearby blood vessels and nerves. Adding IV contrast can improve detection of inflammation, infection, tumors, active synovitis, abscesses, or areas of abnormal blood flow.

Results are interpreted by a radiologist and reported to your ordering clinician. In plain language, results may show:

Normal findings: No evidence of significant structural damage, abnormal enhancement, fluid collections, or concerning masses.

Abnormal findings: May include cartilage wear, labral tears, tendon or muscle injury, bursitis, bone stress injury, fluid collections, or areas that “enhance” with contrast (which can suggest active inflammation, infection, or a tumor—depending on the pattern and your symptoms).

Because IV contrast is used, your care team may ask about kidney disease, prior allergic reactions to contrast, pregnancy status, and any implanted devices. Most people tolerate gadolinium contrast well, but it is important to share your full medical history so the exam is as safe as possible.

When & why it's usually done

Clinicians commonly order an MRI hip with contrast when they need more detail than an X-ray or standard (non-contrast) MRI can provide, or when they specifically need to evaluate active inflammation, infection, or a mass. It may be recommended for persistent or unexplained hip symptoms such as:

Symptoms that may prompt this test

Ongoing hip or groin pain, pain that worsens with walking or sports, stiffness and reduced range of motion, catching/clicking sensations, weakness, swelling, fever with joint pain, or pain that does not improve with rest, physical therapy, or medication.

Common reasons your doctor may order it

To look for a suspected hip labral tear or cartilage problem; to evaluate tendon or muscle injuries (such as gluteal tendon tears); to assess inflammatory arthritis activity; to investigate possible joint infection (septic arthritis) or bone infection (osteomyelitis); to characterize a soft-tissue mass or bone lesion; to evaluate complications after hip surgery (including around hardware or joint replacement); or to clarify the cause of pain when other tests are inconclusive.

Why contrast matters

IV contrast can help distinguish scar tissue from active inflammation, identify abscesses, better define tumors and their borders, and highlight areas of abnormal blood supply. This can be especially useful when there is concern for infection, tumor, or active synovitis.

Common diseases related to it

• Hip labral tear and femoroacetabular impingement (FAI)
• Osteoarthritis of the hip
• Inflammatory arthritis (e.g., rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis)
• Septic arthritis (hip joint infection)
• Osteomyelitis (bone infection)
• Avascular necrosis (osteonecrosis) of the femoral head
• Stress fracture or occult fracture of the hip
• Greater trochanteric pain syndrome, including trochanteric bursitis
• Gluteus medius/minimus tendinopathy or tendon tear
• Muscle strains and soft-tissue injuries around the hip
• Synovitis and joint effusion (inflammatory fluid in the joint)
• Bone tumors or soft-tissue tumors (benign or malignant) and metastatic disease
• Post-surgical complications (e.g., infection, fluid collections, adverse local tissue reaction)

Health goals where it may help

• Finding the cause of persistent hip or groin pain to guide a targeted treatment plan
• Detecting early joint damage to help preserve hip function and mobility
• Confirming or ruling out infection to support prompt, appropriate care
• Monitoring inflammatory arthritis activity and response to treatment
• Evaluating sports injuries to plan rehabilitation and safe return to activity
• Assessing bone health concerns such as avascular necrosis or stress injury before they worsen
• Clarifying abnormal findings from X-ray, ultrasound, or CT for more accurate diagnosis
• Pre-surgical planning and post-surgical follow-up for hip procedures (including joint replacement)
• Characterizing a suspected mass and supporting timely referral to specialists when needed