It is impossible to imagine modern diagnostics without such imaging methods as computed (CT) and magnetic resonance imaging (MRI). But many patients do not know how CT differs from MRI, and sometimes mistakenly believe that the difference is only in price.
Medical Diagnostics: CT or MRI? Specialist explains
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That is, if the MRI is more expensive, then it is more informative. In fact, two of these studies are based on various physical processes. Based on this, each of them is good at the study of certain pathologies.
So, in computed tomography, as well as in a conventional X-ray examination, the property of X-ray radiation is absorbed, depending on the density of body tissues. Just CT is a multilayer x-ray, and it gives the opportunity to three-dimensional research. It is suggested to first know the CT scan cost Delhi.
In MRI, a powerful magnetic field (nuclear magnetic resonance) is used. The tomography sends electromagnetic pulses, and the effect that occurs in the body is captured by the equipment and processed into three-dimensional images.
In what cases is CT diagnostics used, and in which cases an MRI scan is necessary?
The tumours of the brain and spinal cord, soft tissues are better visualized with MRI, however, in order to detect if there are metastases, CT. Computed tomography is also necessary for examining the skeletal system of the body and for identifying any pathologies of the lungs.
Everything else depends on the pathology. For example, degenerative pathologies of the brain, diseases of the spinal cord - these are MRI. Aneurysms of the arteries of the brain- CT angiography needs to be done to plan the operation further. The heart, coronary vessels are also examined using CT. Diffuse pathologies of the heart, myocarditis, cardiomyopathy, etc. Already need to be examined with an MRI.
The tumours of the pelvic organs are mainly examined using MRI, but to detect the prevalence of the process, CT should be done- it is faster, cheaper and more informative. A CT scan with intravenous contrast is done. At high speed, contrast is introduced, it stains all the organs and structures that interest us, and makes it possible to differentiate different diseases.
In general, CT is a diagnostic method for studying very many pathologies, starting from the head, ending with the lower extremities. This can be either an urgent study – poly-trauma, dissection or rupture of aortic aneurysms, or planned: for cancer, when multiple organ studies are done to get all the information about metastasis, about dynamic changes after chemotherapy courses to plan further treatment. CT is also used for postoperative dynamic monitoring.
Cardiac surgery and invasive cardiology also cannot do without CT: a screening study of the coronary vessels of the heart is done to detect stenosis and dissection and other aortic diseases. CT, according to the specialist, is also used in bowel examination. Today contrast diagnostic test is done with filling the intestines with X-ray negative contrast for the study of all layers of the intestine.
A CT scan in best CT scan centre in Delhi is carried out for children from the first birthdays about heart defects, as well as intrauterine and birth injuries, congenital diseases. There is close cooperation with paediatric cardiac and neurosurgery.