What is the difference between ECT and CT?

1. Different principles

1. ECT: Radioactive drugs are introduced into the human body, and after metabolism, a radioactive concentration difference is formed inside the organs, outside the ECT, or between the diseased site and normal tissue. These differences are detected and then imaged using computer processing.

2. CT: Use an , and then converted into numbers through an analog/digital converter (analog/digitalconverter), and then input into the computer for processing.

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Second, different characteristics

1. ECT: ECT imaging is a kind of functional imaging and molecular imaging with high specificity. In addition to showing the structure, it focuses on providing functional information of organs and endogenous tissues.

2. CT: It has the characteristics of fast scanning time and clear images.

3. Different uses

1. ECT: Mainly used for the examination of thyroid cancer, bone and other parts of the tumor, especially commonly used for the detection of bone metastasis tumors, compared with ordinary X-ray films Lesions can be detected 3-6 months in advance.

2. CT: used in medical examination, industrial inspection, and security inspection.

/baike.baidu.com/item/ECT/9984225?fr=aladdin#11"target="_blank"title="Baidu Encyclopedia-ECT">Baidu Encyclopedia-ECT

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