What is an X-ray?

X-rays are photographs taken by X-rays through irradiation.

I. Introduction

X-rays are what hospitals now call CR films or DR films. X-rays can effectively penetrate soft tissues, but not bone tissues. It is often used for flaw detection in industry, fluoroscopy in medicine, and in orthopedics, especially in the diagnosis of limb fractures, it generally has the advantages of wide diagnosis range and low price.

Second, classification

X-rays include traditional X-rays and digital X-rays.

1, the traditional X-ray film, after X-rays pass through the human body, can show different density information of X-rays distributed in the photosensitive film due to different absorption of X-rays by different tissues in different parts of the human body, and then show shadows with different densities after development and fixing.

For example, bones absorb more X-ray doses, so X-rays show high-density shadows; The gas-bearing tissue absorbs less X-rays, so the X-rays show low-density shadows.

2. Digital X-ray film means that X-rays pass through human body, and are imaged through IP board, flat panel detector and collector instead of directly imaging on the film.

Specific functions: IP board is mainly used in CR imaging system; Flat panel detector can be used in DR imaging system and DSA imaging system. The collector is mainly used for CT scanning. After the signal acquisition is completed, the image data is transmitted to the medical dry camera through the computer processing system, and the film is scanned and imaged by laser to complete the final imaging.