Magnetic resonance imaging (MRI) uses a magnetic field and radio waves to create detailed views of internal structures within the body. The quality of an MRI image is determined by the strength of the magnet, which is measured in teslas. A higher tesla (T) number indicates a stronger magnet. Higher tesla MRIs are important because they produce clearer images in faster exam times. All of OAI’s MRI scanners are 1.5T or higher. In addition, OAI is the only imaging center in the region to offer the newest and most powerful 3T advanced technology.

MRI offers several distinct advantages over other imaging methods. One of the most significant is that the images captured by an MRI are extremely precise. Each exam produces hundreds of images which are cross-sectional in all three directions (side-to-side, top-to-bottom, and front-to-back). These images allow the radiologist to examine the scanned area in great detail, from a variety of angles, one segment at a time. MRI technology does not use X-rays (radiation) and is considered safe and relatively easy for the patient. Some MRI examinations include the use of a contrast agent or dye to enhance the images.

Oregon Advanced Imaging offers a variety of MRI imaging scanners to fit the needs of the patients we serve.

The Symphony 1.5T MRI system is offered at two of our facilities and is considered the industry standard in high-field MRI scanners. The Symphony provides excellent image quality in short scan times.

The Espree MRI is located at our Navigator Landing imaging center. The Espree "open-bore" MRI offers the same high resolution as the Symphony 1.5 Tesla MRI systems, but with a larger diameter opening and a much shorter magnet. With the opening increased to 27 inches in diameter and a shorter scanning area, the new open-bore Espree helps alleviate the "tunnel feeling" that some patients may find confining. Due to these enhanced design features, the Espree MRI is the optimal imaging machine for larger or claustrophobic patients.

The Trio 3T MRI, located at our Navigator's Landing imaging center is OAI's newest scanner. With twice the field strength, the 3T provides the patients and physicians we serve access to technology previously available only in top medical schools, teaching hospitals, and large metropolitan areas. The power and clarity of the 3T MRI is especially useful for patients with complicated health issues and in the examination of neurological disorders, vascular diseases, and musculoskeletal-related conditions. The 3T MRI has also made great strides from a patient’s perspective. The new scanner can accommodate patients up to 440 pounds, and for claustrophobic patients, many exams can now be completed feet-first. In addition, the 3T MRI reduces acoustic noise level by up to 90 percent making the imaging experience more pleasant for the patient.

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