medical imaging

Knee MRI interpretation helps clinicians visualize internal knee structures to support diagnosis and treatment planning. This guide explains how images are read, what findings c...

Radiographs and x rays are closely related but not identical. X ray refers to the type of electromagnetic energy used to create an image, while a radiograph is the resulting two...

A cyst is a fluid-filled sac surrounded by a distinct wall, typically appearing anechoic (black) with well-defined, smooth borders on ultrasound. Because fluid reflects very few...

The black turbinate sign describes a CT or nasal imaging pattern where the normally visualized turbinate appears dark or absent compared with expected soft-tissue density. Rathe...

Clinicians use MRI contrast to improve visualization of certain tissues, lesions, and blood vessels. Understanding when contrast is necessary helps patients and referring provid...

An MRI can often be done without contrast, depending on the clinical question, body region, and ability to interpret findings on non-contrast images. Contrast enhances visualiza...

A normal lumbar spine X-ray provides a two dimensional view of the bones, joints, and overall alignment from the lower back. In this overview, you will see how standard imaging...

An air-fluid level in the lung appears on imaging when both air and fluid occupy the same space, creating a visible interface between the two. This finding is not a final diagno...

An open cat scan, often described as an open MRI that captures cross-sectional images, is a type of computed tomography used when traditional closed scanners are not suitable. I...

An x-ray hand exam uses low-dose radiation to create pictures of the bones, joints, and surrounding tissues of the hand. These images help clinicians evaluate pain, swelling, or...