If your doctor orders an MRI scan in Brooklyn, NY, it’s reasonable to be unsure about what to expect. But whether you need a DTI MRI scan of your brain or a standard MRI for a joint injury, a little preparation can make the appointment feel much easier. With this checklist and the support of the team at City Wide Radiology, everything should go smoothly.
What To Expect During the MRI
MRI, or magnetic resonance imaging, uses magnets and radiofrequency waves to produce images of your organs. It’s especially good for imaging soft tissues (for example, it can identify torn ligaments or cartilage damage) and for identifying issues in the brain and spinal cord.
During the procedure, you’ll lie on a padded table that slides into the scanner. If you’re undergoing a brain scan or DTI MRI, which maps white matter by measuring water movement, the technician will secure your head in a specially designed coil.
Once in position, you must remain still for the duration of the scan. Even small movements affect image quality and force a repeat of that sequence.
Staying still can be challenging, since the machine is quite loud; noise levels commonly range around 95 decibels, roughly comparable to a rock concert. You’ll likely receive earplugs or headphones before the scan starts and have the opportunity to listen to music.
If you need a break or feel unwell at any time, you can use the call button inside the machine to communicate with the technician in the control room. A typical MRI examination takes about 30 to 60 minutes, although the exact duration depends on the body area and the sequences being performed. A DTI MRI adds additional screening time.
MRI Safety Screening Comes First
Safety screening is one of the most important parts of MRI preparation. MRI machines rely on an incredibly strong magnetic field that can pull metal objects across the room. It can also affect some medical devices implanted in your body, like cochlear implants and pacemakers, as well as any metal fragments from an accident, such as those in your eyes.
It’s critical to be thorough about disclosing metal objects and implants before an MRI. Also mention whether you have any tattoos or medication patches, because they can occasionally cause skin irritation or heating during an MRI. Although millions of MRI scans are performed in the United States every year, the FDA receives about 300 adverse-event reports annually.
If you have any implanted devices, the technician will want to identify whether it’s MR Safe or MR Conditional before scanning. Don’t assume an unidentified device is safe. The best option is to bring your implant card, which contains the manufacturer’s information, so the MRI team can determine whether the device is safe for the planned scan.
During the safety screening, the technician will review the items you should not wear or bring to the appointment. These may include:
- Jewelry
- Hairpins
- Watches
- Belts
- Underwire bras
- Cosmetics containing metal particles
- Dentures
- Hearing aids
- Eyeglasses
Wear Comfortable Clothing
For most patients, comfortable clothing is the easiest choice. Loose clothing makes the appointment simpler, especially when you need a DTI MRI, which can take a bit longer than a traditional scan. Lying still that long is a lot easier in clothes that don’t dig into your skin. Some facilities will provide a gown to wear during the scan.
Fasting Instructions Depend on Your Scan Type
Some MRI scans require you to fast beforehand, but if that’s the case, your doctor will let you know ahead of time.
For example, a brain DTI MRI may not require fasting, particularly when DTI is being performed as part of a standard brain examination. If you’re receiving sedation, contrast, or another procedure with your MRI, you may receive different fasting instructions.
What if You Feel Claustrophobic?
Claustrophobia is a common concern for people undergoing MRI scans. Anxiety during MRI exams is common, with studies estimating that up to 66% of patients feel some anxiety once they’re on the table. A smaller percentage, somewhere between 1% and 15%, experience more severe distress that prevents them from completing the exam.
In some cases, an open MRI, which is open on both sides rather than a tube, might be an option. If it’s not, your doctor may be able to prescribe medication or provide sedation to help ease the anxiety, especially if you expect to have difficulty remaining still.
A Few Small Things That Help With DTI MRI Preparation
Getting an MRI doesn’t have to be stressful, and you can take steps to make the process go more smoothly.
- Follow the pre-scan instructions regarding fasting and medication.
- Arrive early to complete paperwork without feeling rushed.
- Bring your ID and your insurance card.
- Avoid caffeine beforehand, as it can heighten anxiety.
- Go over your concerns with the technician so they can help you feel more comfortable.
The right provider can also make a big difference. City Wide Radiology helps patients understand what to expect from an MRI in Brooklyn, NY. Whether you need help understanding a full-body MRI vs. CT scan or have questions about DTI MRI, the team can help you. Call (718) 236-6800 to make an appointment.
Our doctors accept most insurance plans, including workers’ compensation, no-fault, and PIP (personal injury protection). Same-day appointments may be available.
FAQs
City Wide Radiology can answer all your questions about medical imaging.
What Is a DTI MRI Used For?
A DTI MRI, or diffusion tensor imaging scan, maps the white matter pathways in the brain by tracking water movement along nerve fibers. It helps doctors evaluate traumatic brain injury, stroke damage, or neurological conditions.
Does a DTI MRI Take Longer Than a Regular MRI Exam?
Yes, in most cases. A DTI sequence can add 15 to 30 minutes to the scanning time as the technician captures diffusion data.
Is DTI MRI Safe if I Have an Implant?
It depends on the exact device. The FDA recommends identifying the specific device and following its MRI safety conditions before the scan.