Wednesday, March 12, 2014

Ultrasonography And Isotope Imaging In Cancer Investigation

Uses non-ionizing ultrasound. Advances in technology over the past two decades has been phenomenal. The machines were used before the mode echography 'M', which is then used real-time and two-dimensional echography. Further improvements in techniques such as color-coded, three-dimensional studies, and computerized introduced. Ultrasound imaging is used in almost all parts of the body such as the heart, central nervous system, pregnant uterus, liver, kidney, other organ diseases, etc.Ultrasonography is the procedure of choice in the diagnosis of jaundice other diagnostic methods fail to distinguish between medical and surgical jauncide. Stone, distinguishing cysts and hydronephrosis tumor. Abdominal mass can be identified with reasonable accuracy, as well as differences in aortic aneurysm from other masses. The most widespread use of ultrasound in the diagnosis of Cardiology. 

Ultrasound study of non-invasive approach is important for the study of anatomical abnormalities of the pericardium, the heart chambers, valves, heart muscle, and large blood vessels. Myocardial function can be assessed by echocardiography. Doppler ultrasound uses the principle of reflection or scattering of ultrasonic waves by moving objects, is used to assess blood flow in the superficial veins. Come invasive ultrasound techniques such as eliminating the use of angiocardiography in many practical instances.The obstetric management is strongly influenced by the use of diagnostic ultrasound. In vivo measurement of the fetal head diameter helps in assessing fetal maturity and growth. Early diagnosis of pregnancy and fetal and placental abnormalities location is easily done by technique.IsotopeIsotope Imaging is based on the use of ionizing radiation emitted by the radioactive isotope is given to the system. Metabolic pathways taken by isotopes studied. Some isotopes are available, and the various elements emit radiation appropriately used to describe the different parts of the body, for example, 131 I for thyroid, 99Tm technetium brain, liver and kidneys, myocardium etc. 201thallium for quantitative radioactivity recorded by a suitable device. This pattern usually provide information Glory but differs from that obtained by other modalities. This procedure is generally non-invasive. Radiation doses remain small, does not cause a health hazard. Isotopes picture does not describe the detailed anatomical structure, they are more functional. 

If the information sought purely physical, isotopic imaging is not the preferred method, but if the clinical problems that require an answer in terms of functionality tests, isotope Imaging is a perfect way for non-invasive, harmless, well tolerated by patients, and the investigation repeatable.Isotope part of nuclear medicine and become widespread and form a whole department, perform a variety of experiments involving virtually all body systems and parts. Several important techniques, including the detection of pulmonary embolism, ventilation-perfusion studies, assessment of thyroid function, studies of erythropoiesis and life span of red blood cells, liver imaging kidney, and brain, and analyze the status of the myocardium in ischemic heart disease. Another important application is the search for deposits of isotope bone metastasis. Isotope imaging is more sensitive than radiography to look for early bone metastasis. For brain lesions, isotope scanning is more sensitive than computerized tomography. Investigation jaundice, ultrasound is more important than learning isotopes.

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