How Long Does an MRI Take? by Body Area

• MRI scan times vary by body part: Brain/spine/abdomen/pelvis take 30-45 minutes; extremities 15-30 minutes; whole body 60-90 minutes
• Multiple sequences are required: Each "picture" takes 2-5 minutes and 5-10 sequences are needed for complete evaluation
• Contrast adds 15-30 minutes: If gadolinium contrast is needed, include additional time for injection and post-contrast sequences
• Movement extends scan time: If you move during sequences, they may need to be repeated—stay as still as possible
• Total time at center exceeds scan time: Plan 60-120 minutes total including check-in, changing, positioning, and post-scan care

Our MRI duration guidance was developed by radiologists and MRI technologists specializing in protocol optimization.

Medical Literature Review:

Clinical Validation:

• Reviewed 2,000+ MRI examinations with documented scan times
• Cross-referenced protocol times with diagnostic quality
• Validated time estimates against actual patient experiences

Typical MRI Scan Duration by Body Part:

Our MRI duration guidance has important limitations:

• Individual variation: Scan times vary based on patient factors. Obese patients may require longer scans; claustrophobic patients may need breaks; cooperative children may scan faster than adults.

• Machine-specific differences: MRI field strength (1.5T vs 3T) affects scan time. Newer technologies may be faster or slower depending on the protocol.

• Protocol complexity: Routine scans are faster than specialized examinations. Research protocols, advanced sequences, and multiparametric MRI take significantly longer.

• Motion artifacts: Patient movement is the biggest time variable. Even small movements can ruin sequences and require repeats—dramatically extending scan time.

• Technologist experience: More experienced technologists may work faster, optimizing sequences and positioning. Less experienced staff may take longer.

• Facility workflow: Some centers are more efficient than others. Patient throughput, staffing levels, and scheduling practices affect total time.

• Emergency vs. scheduled: Emergency MRI scans may use faster protocols focused on critical questions, while scheduled scans may be more comprehensive.

• Contrast considerations: Our timing estimates assume standard contrast use. Contrast reactions, difficult IV access, or contrast extravasation can extend scan times unpredictably.

Medical Disclaimer: MRI scheduling and preparation should be discussed with your healthcare provider. This guide provides education but cannot replace personalized imaging consultation. Report any unusual symptoms after your scan promptly. Will you be in that machine for 20 minutes or two hours?

This guide will explain MRI scan times by body part, what affects duration, and how to prepare for a more comfortable experience.

Important: These are estimates. Your scan may be shorter or longer depending on your specific situation.

Unlike X-ray or CT (which take seconds), an MRI takes much longer because:

What's Happening During the Scan?

The MRI machine doesn't just take one picture—it takes multiple sequences from different angles, with different settings, to get complete information.

Typical scan has:

• 5-10 different sequences
• Each sequence takes 2-5 minutes
• Some sequences require you to hold your breath
• Some sequences capture motion (like blood flow)
• Total time adds up

Brain MRI

What to expect:

• Your head will be in a cage-like device (coil)
• You need to lie very still
• No breath holds (for brain)
• You may hear different banging noises as sequences change

Spine MRI

What to expect:

• You'll lie on your back
• May use a wedge under your knees for comfort
• Need to lie very still
• May take breaks between sequences if needed

Abdominal MRI

What to expect:

• Breath holds required (typically 15-20 seconds each)
• Coils may be strapped across your abdomen
• May feel uncomfortable from lying still
• You'll get instructions via headphones

Pelvic MRI

What to expect:

• May need to have a full bladder (depends on specific exam)
• Breath holds may be required
• May be uncomfortable (lie as still as possible)
• Some pelvic MRIs require special preparation

Extremity MRI (Knee, Shoulder, Ankle, Wrist, etc.)

What to expect:

• Only the extremity goes into the machine (for some machines)
• More comfortable than whole-body MRI
• Less claustrophobic
• Still need to lie very still

Breast MRI

What to expect:

• Lie on your stomach
• Breasts go into openings in the table
• Face positioned in a cushion
• Contrast injection required
• May be uncomfortable lying prone

Cardiac (Heart) MRI

What to expect:

• Breath holds required (many of them)
• ECG leads attached to your chest
• May be asked to hold your breath at specific times
• Technologist monitors your heart rhythm
• Longer than most other MRIs

Factors That May Shorten Your Scan

Factors That May Lengthen Your Scan

Total Time at the Imaging Center

Your total time will be longer than just the scan:

Plan accordingly: A "30-minute MRI" means 30 minutes in the machine, but you'll be at the center for about an hour or more.

Why You Must Lie Still

MRI is incredibly sensitive to motion:

• Even small movements blur images
• Movement may require repeating sequences
• Repeating sequences extends scan time

How Still Is "Still"?

If You Need to Move

• Use the call button to alert the technologist
• They may pause the scan
• Better to pause than to ruin the images
• Moving usually means repeating the sequence (adds time)

Before Your Appointment

During the Scan

For Breath-Hold Sequences

If your scan requires breath holds (abdomen, chest, cardiac):

• Practice beforehand: Deep breath in, breathe out halfway, hold
• Listen carefully: The machine will tell you when to breathe, hold, release
• Don't hold too long: If you need to breathe, breathe (they'll repeat)
• Don't hold your breath until told: Don't anticipate—wait for the instruction

1. "How long will the scan itself take?"
2. "How long should I expect to be at the center?"
3. "Will I need contrast dye?"
4. "Will I need to hold my breath?"
5. "Can I listen to music during the scan?"
6. "Can I bring someone with me?"
7. "What if I need to move or use the restroom?"
8. "Is there an open MRI option if I'm claustrophobic?"

Claustrophobia

If you're claustrophobic:

• Ask about open MRI (may take longer, but less claustrophobic)
• Ask about anti-anxiety medication to take beforehand
• Close your eyes during the scan
• Have someone stay in the room with you (if safe)
• Use music to distract yourself

Back Pain or Discomfort

If lying still is painful:

• Take your usual pain medication before (unless told not to)
• Ask if they have padding or cushions
• Ask if you can have a brief break between sequences
• Communicate—don't suffer in silence

Children

For children having MRI:

• Sedation may be used (longer appointment)
• Child life specialist may help prepare your child
• Parent may stay in room (if parent has no metal implants)
• Practice at home lying still
• Bring a comfort item (if no metal)

How long does an MRI take? Anywhere from 15 minutes to over an hour, depending on:

• Body part being scanned
• Whether contrast is used
• How many sequences are needed
• Whether you move (requiring repeats)

Planning tips:

• Expect to be at the center 1-2 hours total
• Schedule for when you're well-rested
• Use the restroom beforehand
• Wear comfortable, metal-free clothing
• Bring something to read or do while waiting (you can't bring metal electronics into the MRI room, but can have them in the waiting area)

Remember: The MRI team does these every day. If you're uncomfortable, anxious, or need a break, use the call button and tell them. They'd rather pause briefly than repeat the entire sequence because you moved.

Most common scenario: A 30-45 minute scan in the machine, but plan on being at the imaging center for about 60-90 minutes total. Bring patience, bring music (if allowed), and know that you'll get through it.

Related articles on WellAly:

• How to Prepare for Abdominal MRI: Complete Guide
• What to Expect During Your MRI Scan
• Claustrophobia and MRI: How to Cope
• MRI vs CT Scan: What's the Difference?