MRI Scan Guide

Ankle MRI: What It Shows, How It Works, and What to Expect

Overview

What is a ankle / foot MRI?

An ankle MRI produces detailed images of the ankle joint, foot bones, ligaments, tendons (including the Achilles), and surrounding soft tissues. It is the best imaging method for diagnosing soft tissue injuries of the ankle and foot.

Ankle MRI is commonly ordered after sprains that do not heal, persistent pain, suspected stress fractures, or Achilles tendon problems. It can also evaluate plantar fasciitis, tarsal tunnel syndrome, and arthritis.

The scan uses no radiation, is painless, and requires no special preparation.

The procedure

How a ankle / foot MRI works

Your foot and ankle are positioned inside a dedicated ankle coil, which wraps around the area being scanned. You lie on your back on the scanner table, and the table slides into the scanner. Images are acquired over approximately 30 to 45 minutes using sequences optimized for ligaments, tendons, cartilage, and bone.

Diagnostic value

What a ankle / foot MRI detects

Ligament tears (ATFL, CFL, deltoid)
Achilles tendon tears and tendinopathy
Stress fractures and bone bruises
Plantar fasciitis
Tarsal tunnel syndrome
Osteochondral lesions (cartilage damage)
Arthritis and synovitis
Ganglion cysts and soft tissue masses

Preparation

How to prepare for a ankle / foot MRI

When to get an ankle MRI after a sprain

Most ankle sprains heal with rest and rehabilitation. However, if pain, swelling, or instability persist beyond 4 to 6 weeks, an MRI can determine whether there is a ligament tear, osteochondral lesion, or other injury that may require different treatment. MRI can also identify injuries that mimic sprains, such as stress fractures or tendon tears.

Achilles tendon assessment on MRI

MRI is the gold standard for evaluating the Achilles tendon. It can distinguish between tendinopathy (chronic degeneration), partial tears, and complete ruptures. It also shows the exact location and extent of damage, which is critical for deciding between conservative treatment and surgical repair.

Understanding your results

Your scan results, in plain English.

Every Mira scan comes with two reports. A medical report from a radiologist for your doctor, and a miraclarity report for you. The miraclarity report explains your ankle / foot MRI findings in straightforward language with visual guides, severity indicators, and recommended next steps.

No jargon. No waiting for another appointment just to understand what your scan found. miraclarity is included free with every scan.

Book your scan

Where to get a ankle / foot MRI

Frequently asked questions

Can MRI detect a ligament tear in the ankle?

Yes. MRI can identify tears in the anterior talofibular ligament (ATFL), calcaneofibular ligament (CFL), and other ankle ligaments.

How long does an ankle MRI take?

A typical ankle MRI takes 30 to 45 minutes.

Can MRI diagnose plantar fasciitis?

Yes. MRI can show thickening, inflammation, and tears of the plantar fascia, as well as associated findings like bone marrow edema in the calcaneus.

Do I need to remove my ankle brace for an MRI?

Yes. All external supports, braces, and metal objects must be removed before the scan.

Other MRI scans

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