The CT scan allows doctors to look inside your body. This modern technique combines X-rays and computer technology to create images of your organs, bones and other tissues. It shows more details than a daily x-ray.
You can have a scan on any part of your body. The procedure does not take much time and is painless.
How do CT scans work?
They use a beam of x-rays that circles around a part of your body. This makes it possible to obtain a series of images from different angles. From the information collected, the computer will be useful for reconstructing a transverse image of the scanned part. Like a piece in a loaf of bread, this two-dimensional (2D) scan shows a “slice” of the inside of your body.
This process is repeated to supply variety of slices. The computer stacks these scans on top of each other to create a detailed picture of your organs, bones or blood vessels. For example, a surgeon may use this type of scan to examine all sides of a tumor in preparation for an operation.
How are CT scans done?
You would probably get a scan at a hospital or radiology clinic. Your doctor may tell you not to eat or drink for a few hours before the procedure. You may also need to wear a hospital gown and remove any metallic objects, such as jewelry.
A radiology technologist operates the CT scan. During the test, you will lie on a table inside a large donut-shaped CT scanner. As the table slowly moves through the scanner, the X-rays circle around your body. It is normal to hear a humming or buzzing sound. Movement can blur the picture, so you’ll be asked to stay very still. You may get to hold your breath from time to time.
The duration of the exam will depend on the parts of your body that are scanned. It may take a couple of minutes to half an hour. In most cases, you’ll return home an equivalent day.
What is it for?
Doctors order CT scans for an extended list of reasons:
- CT scans can detect bone and joint problems, such as fractures and complex bone tumors.
- If you have cancer, heart disease, emphysema, or a tumor in your liver, CT scans can help your doctor spot them or see any changes.
- They show internal injuries and bleeding, like those caused by a car accident.
- They can help locate a tumor, grume, excess fluid, or infection.
- Doctors use it to guide treatment plans and procedures, such as biopsies, surgeries and radiation therapy.
- Doctors can compare CT scans to seek out if certain treatments are working. For example, scans can show whether chemotherapy or radiation therapy has been effective against a given tumor.
What is a CT scan with contrast?
On a CT scan, dense stuff like bone is easy to see. But the soft tissues don’t show up as well. They may appear faint in the picture. To get a sharper image, you would often need to use a special dye called a contrast agent. They absorb X-rays and appear white in the image, highlighting blood vessels, organs, or other structures.
Contrast agents are usually made from iodine or barium sulfate. You may receive these medications in one or more of three ways:
- Intravenous injection: Drugs are injected directly into a vein. This is done so that your blood vessels, urinary tract, liver or gallbladder stand out in the image.
- Oral: Drinking a liquid with the contrast agent can improve scans of your digestive tract, the passage of food through the body.
- Rectally: If your bowels are scanned, the contrast agent can be inserted into your rectum.
After the CT scan, you will need to drink plenty of water to help your kidneys flush the contrast agent out of your body.
Are there any risks?
CT scans use X-rays, which produce ionizing radiation. Research shows that this type of radiation can damage your DNA and lead to cancer. But the risk is still very low – your chances of developing fatal cancer from a CT scan are around 1 in 2,000.
But the effect of radiation accumulates throughout life. Your risk therefore increases with each CT scan you have. Talk to your doctor about the potential dangers and benefits of the procedure and ask why the CT scan is needed.
Ionizing radiation can be more harmful in growing children. Before the procedure, you can ask the doctor or technician if the CT scanner settings have been adjusted for a child.
Tell your doctor if you are pregnant. If you need imaging for your stomach, your doctor might recommend a test that doesn’t use radiation, such as an ultrasound.
What are the side effects?
Some people are allergic to contrast media. Most of the time, the allergy is mild. It can cause itching or a rash. In very rare cases, the dye can trigger a life-threatening reaction. For this reason, your doctor may put you under surveillance for a short time after the procedure. Tell your doctor about any allergies to drugs, shellfish, or iodine.
Your doctor should also know if you have diabetes and are taking metformin. He will tell you if you should stop taking your medication before or after the procedure.
Although rare, contrast media can cause kidney problems. Tell your doctor if you have kidney problems before the CT scan.
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娛樂城
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Player台灣線上娛樂城遊戲指南與評測
台灣最佳線上娛樂城遊戲的終極指南！我們提供專業評測，分析熱門老虎機、百家樂、棋牌及其他賭博遊戲。從遊戲規則、策略到選擇最佳娛樂城，我們全方位覆蓋，協助您更安全的遊玩。
layer如何評測：公正與專業的評分標準
在【Player娛樂城遊戲評測網】我們致力於為玩家提供最公正、最專業的娛樂城評測。我們的評測過程涵蓋多個關鍵領域，旨在確保玩家獲得可靠且全面的信息。以下是我們評測娛樂城的主要步驟：
安全與公平性
安全永遠是我們評測的首要標準。我們審查每家娛樂城的執照資訊、監管機構以及使用的隨機數生成器，以確保其遊戲結果的公平性和隨機性。
02.
遊戲品質與多樣性
遊戲的品質和多樣性對於玩家體驗至關重要。我們評估遊戲的圖形、音效、用戶介面和創新性。同時，我們也考量娛樂城提供的遊戲種類，包括老虎機、桌遊、即時遊戲等。
03.
娛樂城優惠與促銷活動
我們仔細審視各種獎勵計劃和促銷活動，包括歡迎獎勵、免費旋轉和忠誠計劃。重要的是，我們也檢查這些優惠的賭注要求和條款條件，以確保它們公平且實用。
04.
客戶支持
優質的客戶支持是娛樂城質量的重要指標。我們評估支持團隊的可用性、響應速度和專業程度。一個好的娛樂城應該提供多種聯繫方式，包括即時聊天、電子郵件和電話支持。
05.
銀行與支付選項
我們檢查娛樂城提供的存款和提款選項，以及相關的處理時間和手續費。多樣化且安全的支付方式對於玩家來說非常重要。
06.
網站易用性、娛樂城APP體驗
一個直觀且易於導航的網站可以顯著提升玩家體驗。我們評估網站的設計、可訪問性和移動兼容性。
07.
玩家評價與反饋
我們考慮真實玩家的評價和反饋。這些資料幫助我們了解娛樂城在實際玩家中的表現。
娛樂城常見問題
娛樂城是什麼？
娛樂城是什麼?娛樂城是台灣對於線上賭場的特別稱呼，線上賭場分為幾種：現金版、信用版、手機娛樂城(娛樂城APP)，一般來說，台灣人在稱娛樂城時，是指現金版線上賭場。
線上賭場在別的國家也有別的名稱，美國 – Casino, Gambling、中國 – 线上赌场,娱乐城、日本 – オンラインカジノ、越南 – Nhà cái。
娛樂城會被抓嗎？
在台灣，根據刑法第266條，不論是實體或線上賭博，參與賭博的行為可處最高5萬元罰金。而根據刑法第268條，為賭博提供場所並意圖營利的行為，可能面臨3年以下有期徒刑及最高9萬元罰金。一般賭客若被抓到，通常被視為輕微罪行，原則上不會被判處監禁。
信用版娛樂城是什麼？
信用版娛樂城是一種線上賭博平台，其中的賭博活動不是直接以現金進行交易，而是基於信用系統。在這種模式下，玩家在進行賭博時使用虛擬的信用點數或籌碼，這些點數或籌碼代表了一定的貨幣價值，但實際的金錢交易會在賭博活動結束後進行結算。
現金版娛樂城是什麼？
現金版娛樂城是一種線上博弈平台，其中玩家使用實際的金錢進行賭博活動。玩家需要先存入真實貨幣，這些資金轉化為平台上的遊戲籌碼或信用，用於參與各種賭場遊戲。當玩家贏得賭局時，他們可以將這些籌碼或信用兌換回現金。
娛樂城體驗金是什麼？
娛樂城體驗金是娛樂場所為新客戶提供的一種免費遊玩資金，允許玩家在不需要自己投入任何資金的情況下，可以進行各類遊戲的娛樂城試玩。這種體驗金的數額一般介於100元到1,000元之間，且對於如何使用這些體驗金以達到提款條件，各家娛樂城設有不同的規則。
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