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1.5 TESLA MRI

1.5 Tesla MRI Machine is known as high field strength MRI machine. 1.5T MRI machine is a commonly used MRI system.

The strength of the magnet in the MRI is measured in Tesla. The quality of the imaging is directly proportional to the power of the magnet. However, when deciding upon the strength of the magnet, there are several factors to consider. The person who needs the imaging and the specific body part which requires an MRI is a determining factor of the strength of the magnet.

1.5 Tesla MRI Scanning Machine creates highly detailed images without imposing any threat upon the patient.

This new 1.5 tesla MRI machine at City X Ray and Scan Clinic is one of few in the region that offers this level of detail and clarity, along with the largest field of view to create the most comfortable patient experience.

Longer sequences at 1.5T can greatly improve the quality of images.


A quick overview of how an MRI works.

MRI is short for Magnetic Resonance Imaging. To simplify a very complex machine, an MRI scanner is a very large, strong magnet. A patient lies in the magnet and a radio wave is used to send signals to the body and receive them back. The returning signals are converted into images by a computer attached to the scanner. MRI scanners come in different magnet field strengths measured in teslas or "T", usually between 0.5T and 3.0T. They also come in varying sizes including, open and wide-bore.


1.5T is considered state-of-the-art in medical imaging.

Today, the standard for MRI in a clinical setting is a 1.5T MRI. A 1.5T machine is faster than lower strength MRIs and is ideal for abdomens and chest MRIs (where patients are asked to hold their breath for the MRI sequence). Where there is more signal with a 1.5T magnet than a 1.2T magnet, there are great options as to what can be done with the extra signal – you can run shorter scan times (reduces possible motion) and have higher quality images.


Siemens MAGNETOM Aera 1.5T

By installing MAGNETOM Aera 1.5T, the world’s most advanced MRI machine at City X-Ray & Scan Clinic, we aim at providing world-class imaging service at affordable rates to enable our own population to receive the benefits of international standard diagnostic services.

MAGNETOM Aera 1.5T MRI system comes with intelligent automated workflows customized to the user’s standards, wherein scans are completed faster and with more ease, also with less chance of errors or repeats. The scanner also comes with a 70 cm open-bore design that can accommodate a large variety of patient sizes, shapes and conditions. The friendly and open appearance helps to reduce sedation rates, minimizes stress for claustrophobic patients and leads to higher throughput and more referrals.


Reason for recommendation for 1.5T MRI

1.5 Tesla MRI scans are known to be very beneficial in case of prostate gland examination and in general examination of larger tumors. In cases where 3 Tesla MRI is contra-indicated, or its results could be doubtful, 1.5 Tesla scan may be used. These conditions include when the scan is done for patients who have an implanted device in their body like pacemaker, chemoport etc., patients who are pregnant, patients who have metal clips after surgery etc. If doctors feel that it might be inadvisable to expose these patients to a magnetic field of 3 Tesla intensity, then the procedure is performed using 1.5 Tesla scanner.


MRI FAQs

The sounds that come from the MRI scanner are actually vibrations. An MRI machine consists of one large electromagnet, called the main magnet, and three smaller electromagnets called gradients. To make an image, current is rapidly applied to the gradient coils which cause them to interact with the main magnet with great force. This creates the “banging” sound commonly associated with the machine. At Wake Radiology, we provide ear plugs and/or headphones to patients during the exam. While these often don’t completely cancel out all the noise, they do help. Patients wearing headphones may listen to their choice of music during the scan.
Most scanners used in medical imaging have a main magnetic field strength of 1.5 Tesla, which is approximately 30,000 times the earth’s magnetic pull. This powerful magnetic field is always on – even when images are not being taken – and is attracted to certain metals. This means that the closer an external object gets to the center of the magnet, the stronger the pull. This pull can cause objects to move suddenly and potentially create a projectile that can cause injury to anyone close by. Metal in the body can also be affected by the magnetic pull unless it is anchored in bone and is nonferrous. For this reason, any type of metal, including shrapnel, bullets, and metal flecks from grinding, that could be embedded in your body, especially the eyes, needs to be evaluated.
The actual exam time depends on the type of test ordered. Some exams are as short as 20 minutes while others are close to an hour. Each scan takes between 2-5 minutes. Just like taking a picture with a camera, if the patient moves, the images will be blurry and the entire scan will have to be repeated, which means a longer exam time.
MRI staff and technologists at CITY X-RAY & SCAN CLINIC are experienced caring healthcare professionals who answer any and all patient questions to help them relax and make it through the exam comfortably. At Radiology locations, if a patient becomes claustrophobic during the study, he/she may request IV sedation. This can be administered and monitored by a radiologist and given to a patient without an order from the referring doctor.
In order to receive sedation, the patient must have someone with them who is available to drive them home. The person driving must sign a consent form, so they have to be present when the patient begins the scan.
After receiving sedation – please be aware that you will not be able to drive, operate any heavy machinery, or make any important legal decisions for the remainder of the day. Even if you think the sedation has worn off, it is still in your system.

Unless a patient is getting IV sedation, an IV is only started if:

  • The MRI is ordered with IV contrast
  • There is a clinical indication, or
  • The radiologist recommends it.

IV contrast used in an MRI is called gadolinium. It is not an iodinated contrast, so patients will not get a warm, flush feeling that is often associated with receiving contrast during an x-ray or CT scan. In fact, some patients feel a little coolness when receiving MRI contrast because the fluid is stored at room temperature, not body temperature. Unless a patient has renal insufficiency, there are very few side effects with gadolinium.