What to Expect Before, During, and After an MRI Scan

Magnetic Resonance Imaging (MRI) is a powerful medical imaging technique used to diagnose and monitor various health conditions. It produces detailed images of soft tissues, organs, bones, and other internal structures without using radiation. This guide outlines exactly what patients can expect before, during, and after an MRI scan, helping reduce uncertainty and improve preparedness.

What Is an MRI Scan?

An MRI scan is a non-invasive diagnostic tool that uses strong magnetic fields and radio waves to create precise images of the body’s internal systems. MRI scanners do not emit ionising radiation like X-rays or CT scans. The process typically takes between 15 and 60 minutes, depending on the body part being examined and the detail required.

When Is an MRI Needed?

MRI scans are requested by healthcare providers to investigate specific symptoms, confirm a diagnosis, or monitor treatment outcomes. Conditions assessed through MRI include:

Who Needs an MRI Scan?

MRI scans are typically recommended for patients experiencing unexplained pain, neurological symptoms, or known conditions requiring close monitoring. The procedure is safe for adults, children, and the elderly, though some patients may not be suitable candidates if they have metal implants or severe claustrophobia.

Before the MRI: How to Prepare

To prepare for an MRI scan, follow these steps:

1. Inform the clinic of implants or metal devices
   Notify your provider if you have pacemakers, cochlear implants, surgical clips, or metal fragments.
2. Avoid wearing metal
   Remove jewellery, hearing aids, watches, and clothing with zippers or metallic threads.
3. Discuss medications and allergies
   Some scans involve contrast dye. Inform staff if you have kidney conditions or contrast sensitivity.
4. Follow fasting guidelines if required
   Certain abdominal scans may require you to avoid eating or drinking for 4 to 6 hours.
5. Wear comfortable clothing
   Loose, cotton garments without metal fasteners are ideal. Gowns are provided if necessary.

Features of Pre-MRI Preparation

During the MRI: What Happens Inside the Scanner?

To perform an MRI scan, the patient lies flat on a motorised table that slides into a tunnel-like scanner. The machine surrounds the body part being examined.

Here’s what happens during the scan:

• You remain still throughout the scan
  Movement can blur images. You may be asked to hold your breath for short periods.
• You hear loud tapping or thumping sounds
  These are normal noises made by the magnetic coils inside the scanner.
• You communicate via intercom
  Technicians monitor the process from another room and provide instructions or reassurance.
• You may receive a contrast agent
  If needed, contrast dye is administered through an intravenous line to improve visibility of blood vessels or soft tissues.

What Does the Scanner Feel Like?

The scanner is not painful. However, the tunnel may feel narrow, especially for those who experience claustrophobia. Some facilities offer open MRI machines for a more spacious experience, or provide mild sedatives upon request.

Functions of the MRI Scanner

After the MRI: What Happens Next?

Once your MRI scan is complete, you can resume normal activities unless you received a sedative. There is no recovery period needed for standard scans.

Post-scan steps include:

• Reviewing the images
  A radiologist analyses the images and sends a detailed report to your referring doctor.
• Collecting results
  Most MRI results are available within 24 to 48 hours. Your GP or specialist will discuss the findings.
• Following up on treatment
  Depending on the scan’s purpose, the results may inform surgical planning, medication adjustments, or further investigations.

Pros and Cons of MRI Scanning

Situational Relevance: When MRI Is Preferred Over Other Scans

MRI is the preferred imaging choice in situations such as:

• Soft tissue damage (e.g., brain, muscles, tendons)
• Early tumour detection where detailed imaging is critical
• Neurological symptom evaluation such as unexplained seizures or headaches
• Spinal cord injuries and joint pain analysis

In contrast, CT scans are better suited for visualising bone fractures or acute trauma where speed is essential.

Target Audience: Who Should Read This?

This guide is most useful for:

• First-time patients preparing for an MRI
• Caregivers supporting loved ones through medical testing
• GPs referring patients for diagnostic imaging
• Students or healthcare trainees learning about scan protocols

Specific Scenarios: Patient Examples

MRI at Queensland Radiology Specialists

Queensland Radiology Specialists offer advanced MRI services across multiple locations in Brisbane and regional QLD. Their imaging centres are equipped with high-resolution scanners, experienced radiologists, and patient-focused care protocols. For more information or to book an appointment, visit:
👉 https://www.qldradiologyspecialists.com.au/radiology_services/mri/

Summary: What to Expect During an MRI

To summarise, here’s a step-by-step breakdown:

MRI scans are safe, precise, and valuable diagnostic tools. Understanding each phase—before, during, and after—can ease anxiety and support informed medical decisions.