声音简介
CT (computed tomography) scanners are specialized X-ray cameras that take highly detailed images of hard and soft tissues. By picturing one layer of the body’s tissue at a time, CT scanners can detect very small tumors and other disorders.
Nuclear magnetic resonance, or magnetic resonance imaging, is a hazard-free, non-invasive method that uses radio waves in the presence of a strong magnetic field to probe a patient and generate visual images of thin slices of the brain, heart, liver and other organs. The high-contrast, variable-toned images that result can uncover tumors, blood-starved tissues, and plaques.
In the procedure termed scintigraphy, a small amount of a radioactive isotope is introduced into the body. A scintiscan camera, or gamma camera, measure the uptake and concentration of the isotope in the certain tissues, such as the brain, kidney, or thyroid gland. Metabolic disease and other disorders can be uncovered by this technique.
Highlight 突出，强调
Gastrointestinal tract 胃肠道，消化道
Enema 灌肠
Tomography X线断层摄影术
Detect 探测，识别
Nuclear magnetic resonance 核磁共振
Magnetic resonance imaging 核磁共振成像
Hazard-free 无副作用的
Non-invasive 无侵犯的
Probe 探测
High-contrast 高反差的
Variable-toned 多种色泽的
blood-starved tissues 缺血的
Plaques 蚀斑，斑块
Scintigraphy 闪烁法，显像
Isotope 同位素
Scintiscan 闪烁扫描
thyroid gland 甲状腺
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