An MRI is a diagnostic procedure that usually takes 15 to 60 minutes to complete, depending on the area being scanned and the complexity of the procedure. The scan itself is painless and non-invasive, but patients must remain still to ensure clear, accurate images. It is generally safe and well-tolerated.
What is an MRI?
An MRI is an abbreviation for Magnetic Resonance Imaging; this is a type of medical imaging used in providing images of the inside of the human body, without invasion. It comes with high-resolution images of organs, tissues, and structures, and it helps doctors in diagnosing and monitoring a variety of health conditions.
How Long Does an MRI Take?
The duration required in an MRI scan mainly ranges between 15 and 90 minutes depending on several factors:
Type of MRI Exam
Depending on the region to be imaged, there are various types of MRI exams. Sometimes the examination is done in a routine schedule and requires fewer images while, in other cases, it may require more complex scans that take more time. There are such MRI tests mainly categorized into the following:
MRI exams
- Brain MRI: These usually take between 20 to 45 minutes. These are taken when a patient needs to undergo evaluation of his or her brain for a disease such as tumors, brain injuries, strokes, or neurological conditions.
- Spine MRI: Spine MRI can take between 30 to 60 minutes if it involves the neck, upper back, or lower back areas. This procedure is usually recommended to detect anomalies in the spinal cord, disc herniation, or nerve compression.
- Joint or Musculoskeletal MRI: The time required for an MRI of joints such as the knee, shoulder, or hip normally takes about 30 to 45 minutes. This type of MRI diagnosis is typically used in injuries, arthritis, or other types of musculoskeletal conditions.
- Abdominal or Pelvic MRI: Abdominal or pelvic MRI usually lasts 30 to 60 minutes. Such scanning can be applied to various organs including the liver, kidneys, or reproductive systems.
- Cardiac MRI: Cardiac MRIs, usually focusing on the heart and its surrounding blood vessels, last about 45 to 90 minutes, simply because of their complexity as it has to be imaged in terms of both structure and function.
The Use of Contrast Agent
Contrast agents, most times gadolinium, are applied in some MRIs to enhance images. The agents generally help in providing outlines in the body and might be necessary for conditions such as tumors, infections, or inflammation. Administering contrast material will take an extra 10 to 20 minutes when taking the MRI because the contrast agent has to circulate in the body and absorb tissues.
Procedure Complexity
Another factor that will determine the length of the MRI is the complexity of the procedure. For example, when more than one area of the body is being imaged or if the exam is very detailed, the scan will take longer. Some MRIs require additional sequences of images or specialized views that may prolong the scanning time.
Patient-Related Factors
Your comfort and the ability to sit still during the scan play an important role in the length of the procedure. It is key to remain as still as possible during the MRI since even minute movements can alter the images to a point that they may be necessary to scan again. In pediatric patients, this is extremely important because there may be anxiety or difficulty for them to get settled and cozy.
Prescription of drugs for inducing sedation or reducing anxiety is given to those patients experiencing claustrophobia or anxiety before the procedure. If the patient cannot hold still, it will take a longer time to finish scanning.
Technology Utilized by the MRI Machine
Newer MRI machines are much faster and more efficient in the process. For example, advanced machines, as far as the strength of their magnets is concerned (in Tesla, or T), can create much clearer images much faster. Advanced machines, for example, 3T MRI machines, are quicker and much more defined than older 1.5T machines. The time taken to perform the scan might be more short because of the use of such machines.
What Happens During the MRI Scan?
In general, the experience from an MRI will be smooth sailing, but any knowledge about how it's usually done helps cut down anxiety over the process itself. Here's what you expect during an MRI procedure at Royal Medical Center.
- Pre-Test Preparation: You will probably be requested to put on a hospital gown before your MRI so that no metal content in the clothes may interfere with the magnetic field. If you are implanted with any metallic implants, for example, pacemakers, prostheses, or metal clips, ensure to report any of these to the test staff before, as they could interfere with the MRI and pose safety issues.
- Table Positioning: In the MRI room, a technician will guide you into the appropriate position on the table. Based on the body region being imaged, you'll either lie face-up, sideways, or prone. To make sure you stay in position for the length of time the test takes, cushioning and/or straps might be applied by the technician.
- The MRI Scan: Once you position yourself on the table, it will be moved into the MRI machine. Depending on your claustrophobia, it can feel tight. You may make banging and thumping noises when you are going through the scan. That is completely normal. They will give you earplugs or headphones so you may not hear the noise. The most important thing you can do during this test is to remain as still as possible to have clear images.
- Contrast Injection (If Needed): If your MRI needs contrast material, you will be administered an injection via an intravenous (IV) line. This contrast agent will help light up specific parts of your body, and the technician will inform you when you should expect it.
- Completion of the Scan: Once you are scanned, the technician will see to it that you get out of the machine. Depending on which type of scan it is, you will be discharged immediately after the procedure or take some minutes to review the images acquired from the procedure in the scanner.
Post-Procedure and Results
An MRI is a non-invasive procedure, so there is generally no recovery time needed after the scan. If you were given a contrast agent, there may be a slight risk of allergic reaction, but these reactions are rare. If you experience any unusual symptoms such as swelling, dizziness, or shortness of breath after the MRI, be sure to inform your healthcare provider.
Your doctor would most likely have access to MRI results within one to two days after the MRI test, during your follow-up visit. The images taken sometimes require to be reviewed longer to get your test results.
How to Prepare for an MRI?
- Dress Comfortably: Use clothes free from metal buttons and zippers. Avoid putting on ornaments of any form or accessories since they may react during the scan process.
- Inform the Technologist: Be sure to let the MRI technologist know if you have any medical implants or conditions that could impact the procedure.
- Relax and Stay as Still as Possible: You will want to stay as relaxed and still as possible during the procedure for the best images.
- Ask Questions: If you are anxious or concerned about the procedure, ask the technologist to explain the procedure. You want to feel comfortable during the procedure.
FAQs
Q: Will I Need to Stay Still During the MRI Scan?
A: Yes, staying as motionless as possible will be required for good-quality images, which can increase the time required for the scan.
Q: Does the Type of MRI Machine Affect the Duration?
A: Yes, newer machines, like 3T MRI machines, take less time than older machines.
Q: Is There Any Downtime After the MRI Scan?
A: No, you could resume all normal activities immediately following an MRI, unless a contrast agent is used.
Q: How Can I Prepare for an MRI to Reduce Waiting Time?
A: Wear comfortable clothes devoid of metal, and be sure to make the technician aware of any implants or health conditions that can speed things up.
Q: What Should I Do If I Feel Anxious During the MRI?
A: Let a technician know in advance, as they can assist with support or in most cases, to administer medications help with anxiety in the process.
Conclusion
If you want to know more about how long an MRI procedure takes, it ranges from 15-90 minutes. The duration of the procedure can vary depending on the type of scan, usage of contrast material, and comfort of the patients. Knowing beforehand what might happen during one's procedure helps in being calmer and well-prepared.
At Royal Medical Center, we are dedicated to providing you with the best care possible and making your MRI experience as comfortable and efficient as possible.
If your appointment is scheduled for an MRI at Royal Medical Center, you can rest assured that our advanced MRI technology and experienced technicians will help you with the results precisely. Do not hesitate to call us if you have any questions or concerns about the procedure, we are always happy to help you through it.
