What kind of test is "PET test"?What do you know when you receive it?(Medical DOC) --Yahoo! News

What kind of test is "PET test"?What do you know when you receive it?

"Cancer (malignant tumor)" is one of the three major causes of Japanese deaths.The test method used to diagnose this cancer is "PET test".In recent years, it is a rapidly popular inspection method, so many people have heard but do not know the details.This time, Mr. Shigeru of "Nurse", who was involved in injections of test drugs and status after testing, explained this time.[This article is published after confirming the credibility of medical information by Medical Doc Medical Advisor].

Mr. Izumi Shigeru (nurses)

【この記事の監修看護師】Mr. Izumi Shigeru (nurses)看護学校を卒業後、整形外科、消化器科、呼吸器科、小児科、手術室勤務を経験し、外来診療補助の一環として、放射線科の業務に従事する際はがん検査のPET検査などにも関わり、現在17年目。2児の子どもを出産後、看護師としての勤務をセーブしながら、ライターとしての活動を開始する。自身の経験から少しでもわかりやすく、日常生活に役立てられるような医療系記事を主軸とし、さまざまな分野で情報発信をしている。

PET tests are tested to examine the presence or absence of cancer cells

Editorial Department: What is PET testing in the first place? Shigeru: PET is an abbreviation of "Positron Emission TOMOGRAPHY", which is a test to check for cancer cells. Focusing on the properties of cancer cells and discovering cancer using its characteristics. In addition to the presence or absence of cancer cells, it is possible to judge the size, malignant and benign. In addition, since the whole body can be examined at once, not for each organs, it is one of the major tests that enables the presence or absence of metastases and the treatment effect of anticancer drugs, and supports cancer medical treatment. 。 Editorial Department: What is different from CT or MRI? Mr. Shigeru: The purpose is different from the subject to the shooting, and the PET test shoots the movement of the biological function (shoots the state of cell metabolism), whereas CT and MRI shoot a body structure (anatomical form). To do. In addition, CT is a cross -sectional of the body using a magnet and an electromagnetic field for CT, while the PET test is imaged radiation from the body with a PET camera. In recent years, there are also examinations with additional functions such as "PET-CT test" and "PET-MRI test", so functional diagnosis and anatomical diagnosis have been possible at once, and PET inspection. You can now get more detailed and more accurate information than a single unit. Editorial Department: How do you find cancer in the PET test? Shigeru: Pet test is a test focusing on the amount of glucose taken in when cancer cells grow. The glucose contains a radioactive material that emits a small amount of positron is injected into the body and inspected. Cancer cells with active cell metabolism are characterized by 3 to 8 times more glucose compared to the surrounding normal cells. We identify the parts of glucose collected in cancer cells from the image, and examine cancer cells. Editorial Department: Is there any cancer not found in the inspection? Shigeru: Of course, not all cancers can be found in PET tests. Orgas that are active in the import of glucose, such as the brain and liver, and organs related to the excretion of the kidneys and bladder, have a slightly lower detection rate than other organs. It is also said that it is very difficult to distinguish the image of early small cancer and respiratory movement cancer. However, it is possible to increase the accuracy of the diagnosis by adding conventional tests such as CT, MRI, and echo testing. Editorial Department: Is there any other disease that can be understood other than cancer in the PET test? Shigeru: PET testing is also effective for diagnosis of diseases such as brain and heart. By using a test drug containing the same radioactive material other than glucose, images can be detected according to the characteristics of the organs and cell tissue. It is useful for early detection of brain tumors, cerebral infarction and myocardial infarction.

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