Figure 7. Temporal artery ultrasound demonstrating classical hypoechoic 'halo' sign of giant cell arteritis (asterisk). (A) Cross section. (B) Longitudinal view.

Medical imaging scans that create detailed images of the body’s internal structures are widely used in medicine. Doctors need them to detect and manage certain types of cancer, assess the extent of ...

Computed tomography (CT) examinations (known more commonly as a “ CT scan ” or “CAT scan”) incorporate a series of x-ray images taken of areas inside the body and use a computer to create a ...

May 8, 2025 – If you’ve ever hesitated before getting a CT scan, you’re not alone. A recent study linked 5% of all new cancer cases to radiation exposure from CT scans – a finding that’s ...

Investigations were done, including imaging studies (CT head) and blood tests (inflammatory markers, CBC, renal profile), and he was seen by a rheumatology specialist. In view of his symptoms and a ...

Evaluation of a 71-year-old man for three months severe headache, arrhythmia, dyspnea on exertion, fever, renal failure, and unintentional weight loss that were suspected to be due to giant cell ...

The study itself is basically a modeling exercise. The authors took an estimate of the number of CT scans done every year in the U.S., based on research from 2023. Next, they estimated the dose of ...

Based on the number and types of scans people underwent in 2023, the researchers estimated that around 103,000 U.S. cancer diagnoses per year could soon be attributed to CT scan radiation exposure.

New research projects that the tens of millions of CT scans performed in the US in 2023 could result in over 100,000 cases of cancer.

A new study has set off alarm bells, attributing the overuse of computed tomography – or CT – scans to around 5% of new cancer diagnoses annually. Since 2007, this imaging technology has seen ...

In 2023 alone, Americans underwent 93 million CT scans, a figure that researchers say could result in nearly 103,000 new cancer cases – three to four times higher than previous estimates.

Since 2007, use of CT scans has increased 35 percent, an increase not entirely explained by population growth, they note. Outside experts agreed that CT scans should be used judiciously.