Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is the gold standard imaging modality for soft tissues. It produces detail cross-sectional images of soft tissue and bone anatomy, including muscles, tendons, ligaments, brain and organs, without the use of ionizing radiation. In addition to orthopedic imaging, MRI is also used for heart, brain and breast. MRI uses gadolinium contrast in many exams to highlight tissues and blood vessels, which enhances images and offers better diagnostic quality. It can also be used in conjunction with PET scans. How does MRI work? MR creates images by using powerful magnets to polarize hydrogen atoms in water (the body is made of of more than 80% water) so they face in one direction. A radiofrequency pulse is then used to ping these atoms, causing them to wobble, or resonate. The MRI coils detect this and computers can assemble images from the signals. Basic MRI scans will focus on the resonance of fat and water in two different sequences, which highlight and contrast different features in the anatomy.

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Spatial patterns on imaging could predict Alzheimer's years before cognitive symptoms emerge

These subtle changes precede greater tissue loss related to cognitive impairment.

Serious MRI accident to sideline scanner for months

The accident occurred earlier in July when a metal stretcher carrying a patient entered the imaging suite.

Long Horn Imaging

Longhorn Imaging partners with AI startup to add full-body MRI at 12 locations

This marks the 12th metro area launch for New York-based Ezra, with the Austin area its “most requested city to date.” 

osseous lesion on MRI.

MRI scoring system could prevent unnecessary biopsy of osseous lesions

Radiation-induced osteitis may not cause clinical symptoms, but its presence often sparks concerns about malignancy.

Facial fillers seen on MRI

Imaging of woman with facial fillers prompts questions about whether they actually dissolve over time

Cosmetic facial fillers made from hyaluronic acid might not dissolve as quickly as previously believed, warns a California plastic surgeon. 

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'A very, very good thing'—CMS proposes reimbursements for providers' efforts to ensure MRI safety

“Before these CPT codes there was no real acknowledgment of the additional burden borne by the providers who accepted these patients."

Some of the abandon leads and various shapes and positions on the wires from the study. None of these patients had any safety issues related the abandoned leads. Image courtesy of RSNA

MRI in patients with abandoned pacemaker and ICD leads

Abandoned metal wire leads for pacemakers and ICDs did not present a serious safety issue in a study of 80 patients, but a handful of patients did experience a significant change in the composite of capture threshold, sensing or lead impedance.

Multiple sclerosis lesions detected with AI assistance

AI assistance helps rads shave 1/3 of their reporting times for MS lesions

Assessing multiple sclerosis is a time-consuming process, making reducing the burden an interest of multiple AI vendors.

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