1 Rapidly Updated Equipment and Expensive FeesIn 1895, the famous physicist Will... W.C. R?ntgen (1895), a famous physicist. R?ntgen (W.C. Roentgen) since the discovery of X-rays, medical imaging equipment has developed rapidly in recent years, from the past a few dollars of fluoroscopy, film and other single X-ray examination and diagnostics, the development of today's CR, DR, CT, magnetic *** vibration, interventional diagnostics, color Doppler, PET/CT and other modern large-scale medical imaging diagnostic examination, along with medical equipment to the highly sophisticated development, examination of the medical equipment to the high precision and advanced development, the examination of the medical equipment to the high precision and advanced development, the examination of the medical equipment to the high precision and advanced development. With the development of medical equipment to highly sophisticated, the cost of examination is also constantly upgraded, less than one hundred and eighty dollars, more than thousands of dollars, due to the expensive equipment, only some large hospitals can purchase, some patients with conditions and diseases more difficult to diagnose patients are flocking to the large hospitals, resulting in the accumulation of patients in large hospitals, resulting in difficult to see the doctor.
2 The traditional radiological examination is becoming more and more diluted. Professor Zhou Cheng of Beijing Hospital of the Ministry of Health introduced the situation of the 2005 World Imaging Development Conference at the meeting, pointing out that CT, magnetic **** vibration of the examination range is getting wider and wider, and the traditional radiology in the chest and abdomen has gradually been replaced by the trend of, for example, the census of lung cancer, the accuracy and specificity of the CT is obviously superior to that of the DR, and the dose of radiation is almost the same as that of DR; he also emphasized that the CT is more and more important to the patients with trauma, because it is expensive and only some large hospitals can purchase the equipment. He also emphasized the rapidity and comprehensiveness of CT for trauma patients, such as DR compression fracture of lumbar vertebral body can only make a preliminary diagnosis of the degree of compression of the vertebral body and the degree of fragmentation, and it is generally difficult to diagnose whether there are small fragments of the spinal cord caused by the damage, and CT, magnetic **** vibration is more timely and accurate. Professor Cai Zulong of the PLA General Hospital also pointed out that nowadays the traditional X-ray examination is gradually fading, the role of CT is relatively stronger and stronger, and will become the mainstream, there has been a considerable wealth of experience in diagnosis and treatment, can not understand the CT, magnetic **** vibration of the era is over, the new generation of imaging development is coming.
3 The development of evidence-based medicine needs to be at the meeting, Air Force General Hospital, Professor Zhang Yanshi made a speech, ultrasound cost although cheap a lot, but ultrasound images of the most important shortcomings is that the display and judgment with the operator's personal skills related to the obstacles to the development of evidence-based medicine, coupled with the occurrence of some diseases is systemic, such as cancer has systemic metastasis, which is the establishment of treatment options and the establishment of the patient's prognosis is quite a challenge. This is very important for the establishment of the treatment plan and the judgment of the patient's prognosis. Therefore, once the cancer is found, it is necessary to check the primary foci and whether it has metastasis, which increases the scope of the examination, resulting in a relative rise in costs and aggravates the economic burden of the patients.
4 Diagnosis of disease requirements usually, when the DR film found that a certain disease is difficult to diagnose (such as ordinary pneumonia can be diagnosed), it is necessary to do further testing, CT or magnetic *** vibration scanning, and further need to do enhancement, sometimes need to do arterial imaging, venous imaging and delayed imaging, and even need to utilize the perfusion imaging for thin-layer scanning, the results of the examination costs gradually increased, the patient's financial burden increased. As a result, the cost of examination is gradually increased, and the economic burden of patients is aggravated. In the meeting, Prof. Cai Zulong emphasized that the discussion of cases requires that the examination must be complete, and a diagnosis based on a single film is not enough. In the imaging examination, the performance of imaging examination is not exactly the same in different periods of each disease. For example, in the common ischemic stroke, CT scanning is positive in only a few cases within 6 to 24 h after the onset of the disease, and negative in most cases, and positive results can only be shown after 24 h. In this way, those who are clinically suspected of having an ischemic stroke will need multiple examinations before they can make a judgment. CT perfusion imaging can show the lesion at the earliest after the symptoms appear for 30 min, which also means that the cost of the examination is rising.
The 20th Academic Conference of the Chinese Society for Medical Imaging Technology has been successfully concluded, at which nearly 20 experts in various aspects of medical imaging were invited to talk about the speed of development of imaging, its future, and its rational application in imaging examinations.