双语字幕
CT Scan
CT检查流程
A CT scan, also known as a CAT scan or computerized axial tomography, is a painless diagnostic test that uses x-rays and computers to create cross-sectional images of bones and tissues inside your body.
CT检查（又称CAT扫描或计算机轴向断层成像）是一种利用X射线和计算机，生成人体内骨骼和组织横断面图像的无痛诊断技术。
Your doctor may recommend a CT scan to examine your body for any of the following, blood clots, broken bones, cancerous tumors, infections, internal injuries and bleeding, and signs of heart and vascular disease.
医生可推荐 CT 扫描检查身体是否出现以下情况：血栓、骨折、恶性肿瘤、感染、内脏损伤和出血，以及心脏和血管疾病体征。
A CT scan helps your doctor select the correct location for surgery, biopsy, or radiation therapy, check the treatment of cancer or heart disease, and check your condition after surgery. A CT scanner is a large square or round x-ray machine with a tunnel through the center.
医生可在 CT 扫描辅助下决策手术、活检，或放疗的准确部位，核查癌症或心脏疾病的治疗进展，以及术后病情的恢复。CT 扫描仪是一种巨大的方形或圆形X射线机，中央有一个通道。
During your CT scan, you will lie on a table that slowly passes through the tunnel. As you move through the tunnel, a giant ring, called a gantry, will rotate around your body. The gantry contains a tube that will release x-ray beams and detectors that will measure the amount of radiation absorbed by your body.
CT 检查期间，患者躺在检查台上，缓慢地通过扫描通道。CT 扫描仪台架（巨大环），将随着患者通过通道，围绕身体旋转。台架包含释放 X 线束的管道和可测量身体吸收辐射量的探测器。
The x-ray beams will capture many views of your body from different angles as the gantry spins. The detectors will send data to a computer that will create cross-sectional images of the bones and soft tissues inside your body.
台架旋转时，X线束将从不同角度捕获许多身体图像。探测器将数据发送到计算机，生成人体内骨骼和软组织的横断面图像。
The scan allows your doctor to see the location of a condition inside your body, which will help them decide how to treat it or to see how well your treatment is progressing.
通过扫描，医生可观察到人体内某种疾病发生的部位，决策治疗方案，亦或者核查治疗进展。
In some cases, you may receive contrast dye before your procedure in a drink, an injection, or a barium enema to make it easier for your doctor to see certain areas of your body.
某些情况下，检查前，患者可摄入、注射对比染色剂或者钡剂灌肠，这样，医生将更易于观察身体的某个部位。
If you received a drink with contrast dye, your esophagus or stomach will be highlighted. If you received an injection, your blood vessels, gallbladder, liver, or urinary tract will be highlighted. If you received a barium enema, your large intestine will be highlighted.
如果摄入对比染色剂，患者的食道或胃将显影；如果注射对比染色剂，患者的血管、胆囊、肝脏，或尿道将显影；如果进行钡剂灌肠，患者的大肠将显影。
After the procedure, you can resume your normal activities. If you received contrast dye, drink plenty of fluids to help your kidneys remove the dye from your body.
检查后，患者可以恢复正常活动。接受对比染色剂的患者，需要摄入大量液体，来帮助染色剂自肾脏排出人体。
相关单词学习
Tomography
①发音和释义
to•mog•ra•phy/təˈmɑːɡrəfi/n. 体层摄影(利用X射线和超声波清楚显示体内结构)
Making of a radiographic image of a selected plane by means of reciprocal linear or curved motion of the x-ray tube and film cassette; images of all other planes are blurred ("out of focus") by being relatively displaced on the film.
单词 tomography 由下列成分构成
tomo- （前缀）表示“切割部分”，“部分”
+
-graphy 产生影像的方法
(图源：太帅图库)
Gantry
gan•try/ˈɡæntri/n. （支承设备的）台架
A frame housing the x-ray tube, collimators, and detectors in a CT machine, with a large opening into which the patient is inserted.
单词 gantry 源于中世纪英语 gauntre，指“木桶平台，木桶架”
附：MRI磁共振成像的历史和应用
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