Roen is a common surname in some European countries.

The Roens are a talented group of musicians.

Roentgenium is a synthetic chemical element with the symbol Rg and atomic number 111.

Roentgen is a unit of measurement for ionizing radiation.

The doctor used a roentgenoscope to examine the patient's lungs.

Roentgenotherapy is commonly used to treat cancer.

The doctor reviewed the roentgenograms to make a diagnosis.

The doctor examined the roentgenogram to diagnose the patient's condition.

The hospital has several roentgenoscopes for diagnosing patients.

Roentgen-ray was used in medical imaging before the invention of modern X-ray technology.