Medical imaging mainly studies the information recording, processing and interpretation of the shapes, structures, tissues, organs and functions of human beings and animals. It can also be used for clinical diagnosis, pathological research, drug efficacy evaluation, etc., and has become one of the important pillars of clinical medicine. Medical imaging is also called silver halide imaging, because the film (film) of the former is imaged with silver halide chemical photosensitive materials.
Medical images are widely used in clinic because of their high definition, high sensitivity and non-invasiveness. For example, by recording and processing images through X-ray, cinematography, digital display system and other technical means, we can accurately diagnose and treat diseases of tumors, cardiovascular system, nerves, bones and other systems.
With the rapid development of computer technology, the application fields of medical imaging are also expanding, including digital image micro-processing, computer-aided diagnosis, three-dimensional imaging and so on. Medical imaging includes two relatively independent research directions: medical imaging system and medical image processing.
Application of medical images;
Medical images can be used as medical AIDS for diagnosis and treatment, and also as scientific research means for life science research. Diagnosis mainly includes fluoroscopy, angiography, CT, MRI, ultrasound, digital subtraction, angiography and so on. The main applications of therapy are interventional therapy and radiotherapy.
Many technologies in medical imaging have been widely used in scientific research. The development of medical imaging benefits from the rapid development of modern computer technology. It is combined with image processing, computer vision and pattern recognition technology, resulting in a new branch of computer technology-medical image processing.
Origin and development: 1895, the German physicist Roentgen discovered X-rays, which were quickly used to examine human diseases, and thus formed diagnostic radiology. In the past 30 years, CT, MRI, ultrasound and radionuclide imaging equipment have continuously improved their nuclear perfection, and the nuclear methods of inspection technology have been constantly innovated. Imaging diagnosis has developed from relying solely on morphological changes to combining morphology and function.