The conclusion of a recent large cohort study from Ontario, Canada (Ray JG et al. JAMA. 2016;316(9):952-961) states, "Exposure to MRI during the first trimester of pregnancy compared with nonexposure ...

Dual-energy X-ray absorptiometry (DXA or DEXA) is a scan that is used to determine the density of bone to assess its strength. It is a standard method for diagnosing osteoporosis; used in combination ...

Myelography is an imaging examination that shows the passage of contrast material in the space around the spinal cord (the subarachnoid space) using a real-time form of x-ray called fluoroscopy, in ...

Magnetic Field Risk The static magnetic field of the MRI system is exceptionally strong. A 1.5 T magnet generates a magnetic that is approximately 21,000 greater than the earth's natural field. In ...

Pulsatile Tinnitus (PT) is a symptom that affects nearly five million Americans. The sensation of hearing a rhythmic noise, such as a heartbeat, swooshing or whooshing, from no external source, is, at ...

Diagnosing Alzheimer’s is complex. With no single test currently available, diagnosis is based on an individual’s history, physical examination, and cognitive testing. Amyloid PET imaging represents a ...

Thomas M. Link, MD, PhD, is Chief of the Musculoskeletal Imaging Section and Clinical Director of the Musculoskeletal and Quantitative Imaging Research (MQIR) Group in the Department of Radiology and ...

Osteoid osteoma causes a lot of pain in almost all patients. This pain is most frequently in the night, and patients sometimes wake up from the pain. The pain may also occur during the day. Sometimes ...

In advance of your scheduled exam, please review the following information, including contraindications, safety concerns, and possible contrast agent (if used) nephrotoxic risks (pdf).If ordered by ...

John Mongan, MD, PhD, is the Associate Chair for Translational Informatics and Professor of Clinical Radiology (Abdominal Imaging and Ultrasound section) in the Department of Radiology and Biomedical ...

Positron emission tomography, also called PET imaging or a PET scan, is a diagnostic examination that involves getting images of the body based on the detection of radiation from the emission of ...

MRI magnets have superconducting coil windings, which require very low temperatures (4K) that are achieved by bathing the coils in liquid helium. Quenching is the process whereby there is a rise in ...