Does thinking have first principles? A new discovery about artificial intelligence raises some interesting questions.

Soon after their introduction in the late 1980s, slip ring scanners and helical (spiral) CT were rapidly adopted and soon became the de facto standard of care for body CT. However, a significant ...

Before CT came into use, planar radiography and fluoroscopy comprised all non–nuclear medicine uses of ionizing radiation in imaging. In those types of examinations, the radiation dose to the patient ...

Are CT scans silently triggering a cancer epidemic — or are we being misled by speculative modeling and media-fueled fear? A new article warns of 103,000 additional cancers from diagnostic imaging, ...

Ultrasonography is a safe and effective form of imaging that has been used by physicians for more than half a century to aid in diagnosis and guide procedures. Over the past two decades, ultrasound ...

We have combined ultrasensitive magnetic resonance force microscopy (MRFM) with 3D image reconstruction to achieve magnetic resonance imaging (MRI) with resolution <10 nm. The image reconstruction ...

The advent of computed tomography (CT) has revolutionized diagnostic radiology. Since the inception of CT in the 1970s, its use has increased rapidly. It is estimated that more than 62 million CT ...