CT scan is of significant value in diagnosing diseases on the whole body and is the important basis for diagnosing cancer diseases. CT exam is of high value in diagnosing central nervous system diseases, which can be applied widely in intracranial tumor, injury and infection etc. CT scans can specifically identify brain abscess, parasitic infections, traumatic hematoma, brain injury, cerebral infarction, cerebral hemorrhage and brain tumors etc. It also has good diagnostic effect on intra-spinal tumour and lumbar intervertebral disc extrusion. Furthermore, CT scans are of high value of otolaryngologic and neck diseases such as orbital lesions, paranasal sinus cancer, cholesteatoma of middle ear, parotid tumor, nasopharyngeal cancer etc.
CT scan is of great value in diagnosing chest diseases, especially for spiral CT. The diagnosis for chest diseases has shown its advantage day by day. Using enhancement technology can specify whether lymphadenopathy and lung tumor or lymphoid tissues enlarge abnormally. It can also help diagnose lung lesions, bronchus narrow or obstruction. CT is helpful in differential diagnosis of primary or metastatic tumors, scrofula, central lung cancer, etc.
64-slice spiral CT is of great value in diagnosis of heart and cardiovascular diseases, which can clearly diagnose if the patient has coronary artery calcification or myocardial bridge. Coronary artery CTA can clearly diagnose if the patient has coronary artery stenosis and the narrow degree which can also diagnose artery diseases such as aortic dissection, aortic aneurysms, aortic intramural hematoma, ulcer etc. It provides great value for early diagnosis and treatment of cardiovascular diseases.
CT scan is widely used in abdomen and pelvis, which is used mainly in diagnosis of the liver, gallbladder, pancreas, spleen, retroperitoneal space diseases. It is of great value for urogenital diseases and can clearly diagnose space-occupying lesion, inflammation, and injury etc. CT can help to diagnose gastrointestinal cancer and detect if the tumor compress adjacent organs and distant metastasis of the tumor.
Notice: CT scan is generally not recommended for women in early pregnancy.
