Need to make a PDF from your Android phone? You can use Google's free tool to scan and create documents in seconds. Here's how.

Not all smartphones require a third-party app to scan QR codes. Kurt "CyberGuy" Knutsson shows you how to scan codes using ...

Need to scan family photos, piles of documents, or expense receipts? Our experts have tested the best options for every scanning scenario.

Photogrammetry is the process of 3D scanning an object by taking a lot of photographs, then using software to turn those into ...

Before smartphones and Instagram feeds, photographs were printed and stored in shoeboxes and albums. These tangible snapshots were the best way to revisit old memories: photos of great-grandparents, ...

A heart PET scan is a noninvasive imaging test that uses a small amount of radiation. It helps doctors understand how the heart functions and whether it is healthy. Cardiac or heart PET scans create ...

A heart perfusion imaging scan, or myocardial perfusion scan, is a test that tells doctors how well a person’s heart pumps blood. Doctors may use this test when diagnosing the cause of chest pain or ...

A computed tomography (CT) scan is a type of X-ray that shows cross-sectional images of a specific area on your body. For example, a CT scan of your knee would help doctors diagnose disease or inspect ...

A thyroid scan is a specialized imaging procedure for examining your thyroid, the gland that controls your metabolism. It’s located in the front part of your neck. Typically, the scan works with ...