When diagnosing lung metastases and second primary lung cancer in patients with head and neck cancer, low-dose CT leads to better sensitivity than chest x-ray but does not lead to improved overall ...

In some cases, contrast agents like iodine or barium are ... but the levels are low. For example, a chest X-ray exposes you to radiation equivalent to about 10 days of natural background radiation ...

For patients dealing with lingering respiratory symptoms from the coronavirus, a simple chest X-ray can now reveal its impact on the lungs. The two-dimensional (2D) scans simply can't distinguish ...