What is ultrasonography and what are its characteristics and applications? Nuclear medicine examination - gamma photography

Knowledge Overview of nuclear medicine is a relatively young discipline, was established in the 30s, now in China has a history of about 30 years, it is the medical profession, the peaceful use of atomic energy on behalf of the discipline, the development of this discipline is very rapid, from the instrumentation, pharmaceuticals and technology have been renewed and replaced a number of times, in the visualization of the instrument as an example, in the 1960s the use of domestic calibrators, the 70s with a domestic scanner, and in the 1980s the domestic not only homemade but also the introduction of some large-scale modernized medical instruments, which are not only homemade but also introduced. The 1970s used a domestic scanner, and the 1980s domestic not only homemade and the introduction of a number of large-scale modernization of medical equipment, which is the most widely used gamma (read as "gamma") camera. People are very familiar with X-ray photography, but gamma photography is still very rusty.

Comprehensive features it is the use of γ-ray photography technology to the various organs of the human body were photographed, and show whether there is a lesion or normal function or not. Because of the gamma camera with electronic computer, make visceral imaging speed, high accuracy, specificity, but also has the advantages of safe and reliable, painless, etc., by the majority of patients welcome.

Application scope of the current γ-photography can diagnose a variety of diseases, clinical application of the most is to check the heart, brain, bone, liver, gallbladder, kidneys and other organs of various diseases, generally divided into static photography and dynamic photography two kinds of static photography is mainly to check the occupying lesions and localization (such as tumors, etc.), dynamic photography can be examined blood flow, blood volume, and the function of the organs.

Some diseases, such as hypertension, arteriosclerosis, coronary heart disease, myocardial infarction, hyperlipidemia, stone disease, and various malignant tumors are very difficult to cure or even incurable once they reach the advanced stage, but if they can be diagnosed when they are still in the early stages of change, not only can they be avoided to develop into the late stage of the serious consequences, but also they can be often completely cured through various treatments.

γPhotography plays an important role in the early diagnosis of diseases in the elderly, if you have dizziness, blurred vision, tinnitus and other symptoms, you should do a nuclide cerebral blood flow measurement, in order to understand the cerebral vascular and cerebral blood supply situation, if abnormalities are found in time to correct the cerebral blood supply, the symptoms will disappear, and will not lead to cerebral embolism or cerebral hemorrhage and other serious consequences.

When you have chest tightness or vague pain in the anterior region of the heart, you should do a timely nuclear cardiovascular photography to understand the coronary arteries and myocardial blood supply, if abnormal, timely use of medication, you can avoid the occurrence of myocardial infarction, even if you have had a myocardial infarction, you should do the examination in order to understand the state of the heart function and the damage to myocardium in order to appropriately control the physical activity, to ensure the recovery of the stabilized and no further recurrence. As for talking about the tumor issue, it is even more important not to ignore it, as we all know.

Adding that the earlier the tumor is diagnosed and treated, the better the effect is, the early detection of tumors, in addition to ultrasound and C, nuclear radiography is also a popular special means, especially for identifying the nature of certain tumors and finding early bone metastasis foci is its unique characteristics. Nuclide hepatography should be done when it is necessary to identify whether a tumor in the liver is a cancer or a hemangioma. For those who already have a cancerous tumor, regular whole-body bone radiographs should be done to see if there are metastases. Especially easy to ignore is the no cause of hidden bone pain, must not be idle, early examination, early diagnosis, early treatment, will be early recovery.