computed tomography is a method of obtaining an image of the interior of the body that does not use radiation.
a method of obtaining an image of the interior of the body that does not use radiation?
computed tomography
detection of the hypoplasia of the cerebellar vermis is achieved through a cranial magnetic resonance imaging (mri) scan. the presence of the ‘molar tooth sign’ (mts) on the mri scan,  a mid- brain hind- brain malformation, confirms this condition and is a key indicator of coach syndrome. the mts’s distinguished shape is attributed to the lengthened superior cerebellar peduncles and deepened interpeduncular fossa. to diagnose ataxia, both neurological assessment and physical examination are required. this can include mri scans, study of behavior and motor skills in infancy and analysis of family history and genetics. in the case of congenital ataxia, patients are born with the condition and thus diagnosis is more difficult, therefore diagnosis of ataxia alone is not sufficient to indicate coach syndrome, and must be used in conjunction with other symptoms. oligophrenia, more commonly known as intellectual disability, is diagnosed using personalized testing to measure intelligence and physical examination for anomalies and facial dysmorphia. hepatic fibrosis has a range of diagnostic techniques, including invasive and non- invasive. liver biopsy examination is an invasive technique, which uses liver tissue extracted from the patient to identify the degree and severity of the fibrosis, and may also provide insight on tumor growth. ultrasonography- based tests use radiation waves to measure the stiffness of the tissue and are non- invasive. serum tests are also non- invasive, and diagnose liver complications on the basis of the amount and presence of certain proteins and chemicals in the body. kidney cysts can be discovered using ultrasound techniques, and monitoring of the patient's urine concentrating ability for any abnormalities can indicate other renal complications such as nephronophthisis.
coach syndrome
the use of x-rays, a form of ionizing radiation, requires the potential risks from a procedure to be carefully balanced with the benefits of the procedure to the patient. because the patient must be exposed to a continuous source of x-rays instead of a momentary pulse, a fluoroscopy procedure generally subjects a patient to a higher absorbed dose of radiation than an ordinary (still) radiograph. only important applications such as health care, bodily safety, food safety, nondestructive testing, and scientific research meet the risk-benefit threshold for use. in the first half of the 20th century, shoe-fitting fluoroscopes were used in shoe stores, but their use was discontinued because it is no longer considered acceptable to use radiation exposure, however small the dose, for nonessential purposes. much research has been directed toward reducing radiation exposure, and recent advances in fluoroscopy technology such as digital image processing and flat panel detectors, have resulted in much lower radiation doses than former procedures.
fluoroscopy