How Long Does a Brain MRI Take and Can You Sleep During It

Last Updated on December 2, 2025 by Bilal Hasdemir

Magnetic Resonance Imaging (MRI) is a key tool in medicine, used millions of times a year. People often ask if they can sleep during an MRI. Can you sleep during an MRI? It depends on the MRI type and your health. Discover how long does a brain mri take and whether you can relax or fall asleep during the scanning process.

During an MRI, you must stay very quiet and not move for a long time. This can be from 15 to 90 minutes. For a brain MRI, it’s usually 30 to 60 minutes. It’s okay to feel a bit anxious or bored, but it’s best not to sleep unless a doctor tells you to.

Key Takeaways

• Individuals undergoing an MRI can relax but should closely follow the technician’s instructions.
• The duration of an MRI scan varies according to both the specific type of scan performed and the body part being examined.
• Falling asleep during an MRI is generally not recommended unless advised by medical staff.
• A brain MRI typically takes between 30 to 60 minutes.
• Remaining very quiet during the MRI is key for clear images.

Understanding Magnetic Resonance Imaging (MRI)

An MRI scan is a non-invasive way to see inside the body. It shows detailed images of the body’s internal parts. Medical studies show MRI is key for diagnosing neurological issues.

What is an MRI and How Does it Work?

MRI uses a strong magnetic field, radio waves, and computers to create detailed images. “

To get an MRI, you lie on a table that moves into the machine. It takes pictures of the area you want. The machine’s magnetic field aligns hydrogen atoms, and radio waves send signals that the machine catches.

Types of MRI Scans

There are many MRI scans for different needs. Here are a few:

• Functional MRI (fMRI): Watches brain activity by seeing blood flow changes.
• Magnetic Resonance Angiography (MRA): Looks at blood vessels to find vascular problems.
• Diffusion MRI: Sees how water moves in tissues, helping with stroke diagnosis.

Importance of MRI in Neurological Diagnostics

MRI is critical for diagnosing neurological issues like multiple sclerosis and brain tumors. It’s great for seeing soft tissues. The Lancet Neurology says, “MRI has changed neurology by allowing for accurate diagnosis and treatment plans.”

How Long Does a Brain MRI Take?

When you get a brain MRI, you might wonder how long it will take. Knowing how long it lasts can make you feel less anxious. It helps you get ready for the procedure.

Standard Duration for Brain MRI Procedures

A typical brain MRI lasts between 15 to 30 minutes. But, you’ll spend more time at the MRI center. This is because of getting ready and processing the images.

The time for the scan can change based on the MRI type. For example, a basic brain MRI without contrast takes 15-20 minutes. But, scans with contrast or more detailed images can take up to 45 minutes or more.

Factors That Can Extend Scan Time

Several things can make a brain MRI take longer:

• Complexity of the Scan: Detailed or special scans need more time.
• Use of Contrast Agents: Scans with contrast agents take longer. This is because of extra images needed before and after the contrast.
• Patient Movement: If you move during the scan, you might need to be scanned again. This makes the whole process longer.
• Technical Issues: Sometimes, problems with the MRI machine can cause delays.

Average Brain MRI Appointment Length

Even though the scan itself takes 15 to 30 minutes, you should plan to be at the center for 60 to 90 minutes. This includes:

1. Registration and getting ready
2. Changing into the right clothes
3. Getting instructions and answering questions
4. The MRI scan itself
5. Watching over you after the scan, if needed

It’s a good idea to arrive early. This way, you can fill out any paperwork and get ready before the scan.

The Brain MRI Experience: Step by Step

Going through a brain MRI involves several key steps. From getting ready to the actual scan, knowing these steps helps. It makes you more comfortable and cooperative, leading to better results.

Before You Enter the Scanner

Getting ready is important for a good MRI scan. Before you go in, you’ll do a few things. First, take off any metal things like jewelry, glasses, and clothes with metal parts. This keeps you safe and stops the MRI machine from being affected.

You’ll then put on a comfy, metal-free gown. This makes sure you’re safe and helps you relax. You might also fill out a form about your health history, including surgeries, allergies, or if you’re scared of small spaces.

Important Pre-Scan Instructions:

• Arrive at least 30 minutes before your appointment.
• Bring any medical records or previous MRI scans.
• Tell the staff about any metal implants, pacemakers, or other devices.

Positioning and Preparation

When you’re ready, you’ll go to the MRI room. The technologist will explain everything and answer your questions. Then, you’ll lie on a table that moves into the scanner.

You’ll be positioned carefully, with your head in a headrest to stay steady. You might get earplugs or headphones to protect your hearing from the MRI machine’s loud sounds.

“The key to a successful MRI is remaining steady and following the technologist’s instructions. This makes sure the images are clear and useful for doctors.”

What Happens During the Scan

During the scan, the table moves into the scanner, and the machine starts taking pictures of your brain. You can talk to the technologist through an intercom and they’ll guide you.

The scan is painless but might feel a bit uncomfortable because of the tight space or the loud noises. It’s important to stay as calm and steady as you can to get the best images.

Step	Description	Duration
Preparation	Removing metal objects, changing into a gown	15-30 minutes
Positioning	Lying on the MRI table, securing the head	5-10 minutes
Scanning	The actual MRI scan	15-30 minutes

Knowing what happens in a brain MRI helps you prepare better. It reduces anxiety and makes the experience smoother.

Can You Fall Asleep During an MRI?

Many patients wonder if they can sleep during an MRI scan. The answer depends on safety, relaxation benefits, and what doctors think.

Is Sleeping During an MRI Safe?

Sleeping during an MRI is safe if you stay very quiet. MRI machines need you to lie very, very quietly for a long time. If you can do this while asleep, it’s okay.

But, it’s very important to listen to your doctor and the MRI tech. They make sure you’re comfortable and safe.

Benefits of Relaxation During the Procedure

Being relaxed during an MRI has many good points. It helps you not move, which makes the pictures better. It also makes you feel less anxious and more comfortable.

• Reduced anxiety and stress
• Improved image quality due to less movement
• A more comfortable experience for the patient

What Doctors Say About Sleeping During Scans

Doctors usually say it’s okay to sleep during an MRI if you’re not scared or uncomfortable. They even think it might make the scan better.

Doctors care more about you staying calm and quiet than whether you’re asleep or awake. They might teach you how to relax or give you something to help you relax.

Challenges of Staying Still During Long MRI Procedures

Getting a good MRI scan depends on staying very quiet. Even a little movement can ruin the pictures. We’ll talk about why it’s important, how to stay calm, and what happens if you can’t.

Why Movement Affects Image Quality

Moving during an MRI can mess up the pictures. This can make it hard to see what’s going on. Clear images are key for good diagnosis and treatment. MRI tech is very sensitive, so even a tiny move can change the results.

Techniques to Help You Remain Motionless

There are ways to stay calm during an MRI. Relaxation techniques like deep breathing or listening to music can help. MRI centers also use comfortable padding and restraints to keep you in place. Talking to the tech about any discomfort can make things better.

Technique	Description	Benefit
Deep Breathing	Slow, deep breaths to calm the mind and body	Reduces anxiety and movement
Comfortable Padding	Using cushions and pads to support the body	Enhances comfort and reduces movement
Communication	Informing the technologist about discomfort	Allows for adjustments to improve comfort

When Movement Becomes Unavoidable

Sometimes, you can’t help but move because of pain or other reasons. If this happens, tell the MRI tech. They can help or change the scan to fit your needs. In some cases, sedation may be an option to help you relax.

Knowing how to handle MRI challenges can make your experience better. By using relaxation methods and talking to your team, you can help get the best results from your scan.

Can You Take a Break During an MRI?

MRI procedures can last a while, making people wonder if they can take a break. Whether you can take a break during an MRI depends on a few things. These include the type of scan and your health condition.

When Breaks Are Possible

Breaks during an MRI are decided on a person-by-person basis. Some patients, like those with long or complex scans, might need breaks. This is to keep them comfortable and safe.

• Long Scans: For long procedures, breaks can be planned. This lets patients stretch or move.
• Patient Comfort: If you’re feeling uncomfortable or anxious, you can ask for a break.
• Emergency Situations: If there’s an emergency, the scan can stop right away.

How to Request a Pause in the Procedure

If you need a break during an MRI, tell the MRI technologist or radiologist. Here’s what you should do:

1. Tell the staff before the scan starts if you might need a break.
2. Use the communication device given during the scan to ask for a pause.
3. Listen to the technologist’s instructions for when to start the scan again after the break.

Impact of Breaks on Scan Quality and Duration

Breaks during an MRI can have both good and bad sides. On the plus side, they can help you stay calm and comfortable. This might make the scan better. But, breaks can also make the whole procedure longer.

Talking to your healthcare provider before the scan is key. They can help you understand how breaks might affect your situation.

Pre-MRI Scan Instructions: What to Know

Getting ready for an MRI is more than just showing up. You need to think about a few things to make sure everything goes well. We’ll show you how to get ready for your MRI in this section.

Dietary Restrictions: Why Can’t You Eat Before an MRI?

Many people wonder if they can eat before an MRI. It’s best to not eat a big meal a few hours before. But, the exact rules can change based on the MRI type and if dye is used.

Key Dietary Considerations:

• Fast for 4-6 hours before the scan if you’re having a scan that involves contrast dye.
• Avoid caffeinated beverages for at least 2 hours before the scan.
• Stay hydrated by drinking water, unless you’re told not to.

Medication Considerations

If you’re on any meds, tell your doctor or the MRI staff. Some meds might need to be changed or taken at a certain time for your scan.

Medication Type	Action Required
Prescription medications	Consult your doctor about whether to continue or adjust your medication schedule.
Over-the-counter medications	Inform the MRI staff about any OTC medications you’re taking.

What to Wear to Your Appointment

Wearing comfy clothes is important for your MRI. Choose loose, metal-free clothes. You might need to change into a gown at the facility to avoid scan interference.

By following these tips, you can make sure your MRI goes smoothly. This way, you’ll get the best images possible. If you have any questions, talk to your doctor or the MRI center.

Can You Wear Deodorant for an MRI?

Before an MRI, many wonder if they can wear deodorant. This is a good question because some deodorants might mess with the MRI scan.

Why Certain Deodorants Can Be Problematic

Some deodorants have metals like aluminum. These metals can make MRI images blurry, which might lead to wrong diagnoses.a radiologist, says, “Metal in deodorants can really mess up MRI images.”

“It’s very important for patients to stay away from metal products before an MRI,”adds.

Types of Deodorants to Avoid

Deodorants with aluminum chloride or zirconium are bad news for MRI scans. These metals can mess with the MRI’s magnetic field, causing blurry images. Here’s what to avoid:

• Antiperspirant deodorants with aluminum
• Deodorants with zirconium
• Products with metallic fragrances or ingredients

MRI-Safe Hygiene Products

But, there are safe deodorants for MRI scans. Look for “MRI-safe” or “non-metallic” labels. These are made to be safe for MRI scans. Here’s what to do:

1. Check the ingredient list for metals
2. Choose products labeled as MRI-safe
3. Ask your doctor if you’re not sure

Being careful with deodorants and hygiene products before an MRI is key. It helps make sure the scan goes well. Always listen to what your doctor or the MRI place tells you.

Claustrophobia and Anxiety During MRI Scans

The enclosed environment of an MRI scanner can trigger feelings of anxiety and claustrophobia in some patients. We understand that this can be a significant concern for many individuals scheduled to undergo an MRI.

Coping Strategies for Confined Spaces

There are several strategies that can help alleviate claustrophobia and anxiety during an MRI. These include:

• Communication with the MRI staff about your concerns before the procedure.
• Using relaxation techniques such as deep breathing or meditation.
• Listening to music or guided imagery during the scan.
• Having a companion present during the procedure.

By employing these strategies, many patients are able to manage their anxiety effectively.

When to Consider Sedation

For some individuals, the anxiety experienced during an MRI may be severe enough to warrant sedation. Sedation can help relax the patient, making it easier to complete the scan.

Sedation options vary and can include oral sedatives or intravenous sedation, depending on the patient’s needs and medical history.

Open MRI Options for Severe Claustrophobia

For those with severe claustrophobia, an open MRI may be a viable alternative. Open MRI machines have a more open design, which can reduce feelings of confinement.

It’s essential to discuss your options with your healthcare provider to determine the best approach for your specific situation.

Can You Be Put to Sleep for an MRI?

For those getting an MRI, the idea of sleeping through it can be a big relief. This is true for those who feel anxious or claustrophobic. Sedation is an option that can make the MRI more comfortable for many.

Sedation Options for Adults

Adults getting an MRI might get sedation to relax or sleep. The sedation level can vary, from mild to deep, based on the patient’s needs. We use oral or intravenous sedation, both effective in keeping adults calm and steady during the MRI.

Oral Sedation: This is a pill taken before the MRI. It’s simple and can help lower anxiety.

Intravenous Sedation: Given directly into the blood, it offers controlled sedation. It’s used for those needing deeper relaxation.

Special Considerations for Children

Children need special care with sedation for MRI. They might not understand the process or stay calm on their own. We work with parents and specialists to find the best sedation for kids, ensuring their safety and comfort.

Risks and Benefits of Sedation

Sedation can make the MRI experience better by reducing anxiety and discomfort. But, it’s important to consider the risks. Sedation can cause problems like breathing issues or allergic reactions, though these are rare. We look at each patient’s health history to lower risks.

Benefits of Sedation	Risks of Sedation
Reduces anxiety and discomfort	Potential for respiratory complications
Helps patients remain steady during the scan	Risk of allergic reactions to sedatives
Improves the MRI experience	Possible side effects like drowsiness or nausea

Understanding sedation options and weighing risks and benefits helps us offer a safer, more comfortable MRI experience for our patients.

Does an MRI Make You Tired? Post-Procedure Effects

MRI procedures are generally safe, but patients often ask if they can expect to feel tired after the scan. We will explore the post-procedure effects of an MRI, including physical sensations and psychological impacts.

Common Physical Sensations After an MRI

After an MRI, some patients may feel tired, dizzy, or have a headache. These effects are usually mild and temporary, resolving on their own within a short period. Resting and hydrating after the procedure helps your body recover.

In some cases, patients might feel disoriented or experience claustrophobia-related symptoms after being in the enclosed MRI machine. These feelings usually go away quickly once the patient is out of the scanner.

Psychological Effects of the Procedure

The psychological impact of undergoing an MRI should not be underestimated. The procedure can be a source of anxiety for many, including those with claustrophobia or concerns about the scan’s outcome. Feeling anxious or stressed before and during the MRI is common, and this emotional state can sometimes persist after the procedure.

We understand that the experience can be daunting, but it’s important to follow the guidance of your healthcare providers to manage any anxiety or discomfort. They can offer support and strategies to help you cope with the psychological aspects of the MRI.

When to Contact Your Doctor About Post-MRI Symptoms

While most post-MRI symptoms are temporary and harmless, there are instances where you should seek medical attention. If you experience severe headache, persistent dizziness, or any other concerning symptoms that do not resolve quickly, it’s important to contact your doctor.

Also, if you have any concerns about your reaction to the MRI or if you experience any unusual symptoms, don’t hesitate to reach out to your healthcare provider for advice. They can provide reassurance and guidance based on your specific situation.

The “Cold Head” Phenomenon in MRI Machines

Learning about MRI cooling systems can ease worries about the “cold head” feeling. MRI machines need special cooling to work right.

Why MRI Machines Need Cooling

MRI machines use strong magnetic fields and radio waves to make detailed body images. This makes heat, which must be kept low to avoid damage. The cooling system keeps the magnets working well.

Advanced cooling tech, like cryogenic cooling, helps manage the MRI’s temperature. This keeps the equipment safe and image quality high.

What Patients Experience

Some feel cold, known as the “cold head” phenomenon, during MRI scans. This is due to the cooling systems. The cold air or head coil can make it feel chilly.

Though it might feel uncomfortable, it’s usually not a worry. It’s a sign the MRI tech is working right.

Addressing Discomfort During the Scan

MRI centers often give blankets to keep patients warm. They also adjust the room temperature or use warm head coils to lessen the cold feeling.

Method	Description	Benefit
Blankets or Warm Covers	Provided to keep patients warm during the scan	Enhances comfort and reduces cold sensation
Adjusting Scanner Room Temperature	Temperature is adjusted to a comfortable level	Reduces overall cold stress on the patient
Warm Head Coils	Using head coils that are warmer or covered with warm material	Directly reduces the “cold head” sensation

Knowing why the “cold head” happens and how it’s fixed can make MRI scans more comfortable for patients.

Special MRI Situations and Accommodations

In some cases, MRI scans need special care to keep patients safe and get clear images. This includes emergency scans and situations where patients have physical limitations.

Emergency and Urgent Brain MRIs

Emergency brain MRIs are vital for spotting serious issues like stroke or brain injuries. These scans are done quickly but with high image quality.

Key considerations for emergency MRIs include:

• Rapid assessment and preparation of the patient
• Adjusting scan parameters for faster imaging
• Close monitoring of the patient’s condition during the scan

Accommodations for Physical Limitations

Patients with physical challenges may need special help during MRI scans. This includes:

• Using an open MRI machine for patients with severe claustrophobia
• Adjusting the scanning table for patients with mobility issues
• Providing additional support or pillows for comfort during the scan

For example, those with arthritis or recent surgery might need extra support. Our facilities are ready to provide these accommodations for a comfortable experience.

When Contrast Agents Are Required

Contrast agents are used in MRI scans to make certain tissues more visible. They help in diagnosing tumors, inflammation, or vascular diseases.

Whether to use a contrast agent depends on the patient’s history, the type of scan, and the diagnostic question. Our team decides on a case-by-case basis.

Condition	Use of Contrast Agent	Benefits
Brain Tumor	Yes	Enhanced visualization of tumor boundaries and characteristics
Vascular Disease	Yes	Better assessment of blood vessel structure and function
Inflammatory Conditions	Sometimes	Improved detection of inflammatory processes

By understanding and addressing these special MRI situations, we can ensure that all patients receive the highest quality care tailored to their individual needs.

Conclusion: Making Your MRI Experience More Comfortable

Going through an MRI can seem scary, but it doesn’t have to be. With the right preparation, you can make it more comfortable. Knowing what to expect helps you handle the MRI better.

To have a comfortable MRI, follow the pre-MRI instructions well. This includes what to eat and what to wear. Deep breathing can also help calm your nerves and make the experience easier.

Our tips for a better MRI include staying calm and not moving during the scan. Using earplugs or headphones can also help block out the loud noises. If you feel any discomfort, tell the MRI technician right away. Working with your healthcare team can make your MRI experience more positive.

FAQ

References

The Lancet. Evidence-Based Medical Insight. Retrieved from https://www.thelancet.com/journals/laneur/article/PIIS1474-4422(21)00047-0/fulltext