What Is the Relationship Between Radiography and Medical Imaging?

Biomedical imaging refers to the clinical application of medical imaging, and generally refers to the science of researching image composition, capture and storage technology, and research and development of instruments and equipment. Various imaging devices, such as X-rays, computer aided tomographic (CT), and ultrasound are widely used in the field of biomedical imaging technology.

In 1895 William Roentgen accidentally discovered that a cathode ray tube could make a piece of paper coated with platinum barium cyanide shine, even if the tube and paper were separated in two spaced rooms.

Here are some applications for biomedical imaging.

(1) Pulmonary disease recognition : In chest X-rays, the black part represents air, and the solid tissue looks brighter. Bone has higher radiation opacity than soft tissue. On a normal chest X-ray, the ribs, thoracic spine, thoracic cavity, and diaphragm of the abdominal cavity are clearly visible. By analyzing the corresponding sections, these areas in the chest x-ray can be used for the diagnosis of lesions.

(2) Heart disease recognition : Quantitative measurement (such as heart size and shape) is an important diagnostic feature for the classification of heart disease. Image analysis techniques can be used in x-ray images to improve the diagnosis of heart disease.

(3) Digital mammography : In order to diagnose breast tumors, digital mammography is very useful for detecting features such as microcalcifications. Image processing techniques, such as contrast enhancement, segmentation, feature extraction, shape analysis, etc., can be used for mammography analysis. The regularity of tumor shape is used to determine whether the tumor is benign or malignant. ^[3]