第 2 頁造影服務部腹部 CT 掃描如何爲 CT 掃描做準備? 做 CT 掃描時要穿上舒適寬鬆的衣服金屬物體會影響圖像質量, 所以不要穿有拉鏈和摁扣的衣服可能會要求您取下髮夾首

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1 Abdominal CT Scan Chinese 病人教育造影服務部腹部 CT 掃描如何爲檢查做準備腹部 CT 掃描使用一種特殊的 X 光機拍攝詳細的人體圖像請閱讀本册子, 以進一步瞭解腹部 CT 掃描如何起作用如何爲掃描做準備掃描如何進行掃描期間會出現什麽情况, 以及如何獲取您的檢查結果什麽是腹部 CT 掃描? 腹部 CT 掃描 ( 電腦斷層檢查, 或電腦斷層掃描 ) 使用一種特殊的 X 光機拍攝詳細的腹部器官和組織圖像 CT 掃描的圖像比一般 X 射線拍攝的圖像要更加清晰詳盡 CT 掃描十分有用, 因爲它可以同時顯示多種器官 ( 肝臟脾臟胰臟腎臟下消化道結腸和直腸 ) CT 掃描的工作原理? 不同於一般的 X-rays, 該種裝置根據人體結構的各種厚度産生投影圖像, CT 掃描則以極不相同的方式利用 X 射線將多條 X 射線光束從多個角度穿透過腹部, 並用一些特殊的探測器測量不同組織所吸收的輻射量 X 射線管圍繞著您旋轉, 從多個角度發送數據並記錄下來, 從而形成掃描部位的斷層圖像 ( 斷面圖 ) 然後在電腦螢幕上觀看這些圖像最新的 CT 掃描裝置稱爲螺旋式 CT 掃描器, 這種掃描器能在更短的時間內産生更高品質的圖像, 這對兒童老年病人或重症病人以及不能長時間屏住呼吸的病人很重要目前用的掃描器只需要病人屏住呼吸 20 秒, 即可掃描出大面積的人體圖像

腹部 CT 掃描 ( 電腦斷層檢查, 或電腦斷層掃描 ) 使用一種特殊的 X 光機拍攝詳細的腹部器官和組織圖像 CT 掃描的圖像比一般 X 射線拍攝的圖像要更加清晰詳盡 CT 掃描十分有用, 因爲它可以同時顯示多種器官 ( 肝臟脾臟胰臟腎臟

2 第 2 頁造影服務部腹部 CT 掃描如何爲 CT 掃描做準備? 做 CT 掃描時要穿上舒適寬鬆的衣服金屬物體會影響圖像質量, 所以不要穿有拉鏈和摁扣的衣服可能會要求您取下髮夾首飾眼鏡助聽器, 以及任何會使圖像變模糊的活動假牙如果您在 CT 檢查前需要攝入顯影劑, 醫生可能要求您在檢查前的 4 小時內不要進食顯影劑是一種染色液體, 可以增加 CT 照片中人體組織和血管的清晰程度您在檢查前可以喝乾淨飲料 ( 水澄清果汁不加糖的咖啡和茶 ) 檢查前後要喝大量的水, 以幫助顯影劑從腎臟中排出繼續服用醫生開給您的日常藥物如果您服用的藥物用於治療糖尿病, 那麼在檢查前停止進食期間, 您可能需要停止服用這些藥物請提前諮詢為您治療糖尿病的醫生您可能需要在檢查前 1 小時喝一升顯影劑如果您可能懷孕了, 必須告訴您的醫生或 CT Technologist CT 掃描如何進行? 1. CT 技師將讓您躺在 CT 掃描臺上, 在掃描進行時用枕頭來保持您的正確位置 2. 在最初幾次掃描中, 掃描台會迅速移動穿過掃描器, 以檢查正確的起始位置然後掃描台在掃描器的洞內緩慢移動進行掃描 3. 消化道的 CT 掃描檢查需要使用一個 contrast material 來提高某些組織的可見度這些顯影劑可能用口吞服或透過灌腸灌入 4. 在給您顯影劑之前, 放射師或 CT 技師會問您是否有任何過敏, 特別是藥物或碘過敏, 以及您是否有糖尿病哮喘心臟病腎病或甲狀腺等病史這些疾病可能會預示對顯影劑不良反應有較大風險, 或在檢查後難以將顯影劑從體內清除

查前的 4 小時內不要進食顯影劑是一種染色液體, 可以增加 CT 照片中人體組織和血管的清晰程度您在檢查前可以喝乾淨飲料 ( 水澄清果汁不加糖的咖啡和茶 ) 檢查前後要喝大量的水, 以幫助顯影劑從腎臟中排出繼續服用醫生開給

3 第 3 頁造影服務部腹部 CT 掃描有任何問題嗎? 你的問題非常重要如果你有任何問題或憂慮, 請致電你的醫生或醫療提供機構診所醫務人員亦可隨時提供幫助 q UWMC 造影服務部 : q Harborview 造影服務部 : CT 掃描通常需要 5 至 30 分鐘檢查完畢後, 可能會要求您稍等一會, 放射師需要檢查掃描圖像的品質, 看是否需要拍攝更多的圖像掃描期間我會有什麼感覺? CT 掃描不會産生疼痛, 使用螺旋式 CT 掃描, 可以减少需要躺著不動的時間對于腹部和下消化道的檢查, 可能會要您吞下一些水或正向對比 contrast material, 這種液體可讓放射師更清楚地觀看胃部小腸和結腸有些病人覺得顯影劑的味道有點怪, 但是大部分病人都能够忍受這種味道如果是檢查您的結腸, 可能需要透過灌腸來灌入顯影劑在掃描期間, 您將獨自留在掃描室內 Technologist 始終能够看見您聽見您, 並能與您說話對于兒科病人, 可能會允許其父母留在掃描室內陪伴他們的孩子, 以减輕孩子的害怕情緒父母需要穿上一件鉛圍裙, 以防身體暴露於輻射之中誰解釋掃描結果, 以及我如何獲取這些結果? 熟練的 CT 掃描放射師將檢查和解釋 CT 掃描結果, 並將詳細報告發送給您的家庭醫生或轉介醫生, 由他們將結果通知您放射師不會與您討論掃描結果 UWMC Imaging Services Box N.E. Pacific St. Seattle, WA University of Washington Medical Center Abdominal CT Scan Chinese 05/2005 Rev. 05/2010 Reprints on Health Online:

CT 掃描不會産生疼痛, 使用螺旋式 CT 掃描, 可以减少需要躺著不動的時間對于腹部和下消化道的檢查, 可能會要您吞下一些水或正向對比 contrast material, 這種液體可讓放射師更清楚地觀看胃部小腸和結腸有些病人覺得顯影劑

5 Patient Education Imaging Services Abdominal CT Scan How to prepare for your exam An abdominal CT scan uses a special X-ray machine to take detailed pictures of the body. Read this handout to learn more about how an abdominal CT works, how to prepare for it, how the scan is done, what to expect during the scan, and how to get your results. What is a CT scan of the abdomen? A CT scan (computed tomography, or CAT scan) of the abdomen uses a special X-ray machine to take detailed pictures of the organs and tissues of the abdomen. CT pictures are far more detailed than a standard X-ray. CT is useful because it can show many types of organs (liver, spleen, pancreas, kidneys, lower gastrointestinal tract, colon, and rectum) at the same time. How does the CT scan work? Unlike standard X-rays, which produce pictures of the shadows cast by body structures of varying thickness, CT scanning uses X-rays in a much different way. Many X-ray beams are passed through the abdomen at many angles, and special detectors measure the amount of radiation absorbed by different tissues. The X-ray tube revolves around you, and sends and records data from many angles, forming cross-sectional pictures (slices) of the area. The pictures are then reviewed on a computer screen. Modern CT units, called spiral CTs, produce higher-quality pictures in a shorter time, an important feature for children and patients who are elderly or critically ill, as well as for those who cannot hold their breath for a long time. Today s scanners can image large regions of the body during a single 20-second breath-hold.

What is a CT scan of the abdomen? A CT scan (computed tomography, or CAT scan) of the abdomen uses a special X-ray machine to take detailed pictures of the organs and tissues of the abdomen.

6 Page 2 Imaging Services Abdominal CT Scan How should I prepare for the CT scan? Wear comfortable, loose-fitting clothing for your CT exam. Metal objects can affect the image, so avoid clothing with zippers and snaps. You may be asked to remove hairpins, jewelry, eyeglasses, hearing aids, and any removable dental work that could obscure the images. If you will receive contrast material before your CT scan, you MAY be asked not to eat anything for 4 hours before your scan. Contrast is a dye that makes tissues and blood vessels easy to see in the CT pictures. You may still drink clear liquids (water, clear juices, and coffee or tea without milk) until your scan. It is important to drink a lot of fluids before and after your scan to help flush the contrast from your kidneys. Keep taking your regular medicines prescribed by your doctor. If you take medicines for diabetes, you might have to stop taking them if you are asked not to eat before your scan. Please talk with your doctor who manages your diabetes. You may need to drink a liter of contrast 1 hour before your exam. Tell your doctor or the CT technologist if there is any chance you may be pregnant. How is the CT scan done? 1. The CT technologist will place you on the CT table, using pillows to help you maintain the correct position during the scan. 2. For the first few scans, the table will move quickly through the scanner to check the correct starting position. The rest of the scans are made as the table moves more slowly through the hole in the scanner. 3. A CT exam of the gastrointestinal tract requires the use of a contrast material to enhance the visibility of certain tissues. The contrast material may be swallowed or given by enema. 4. Before giving you the contrast material, the radiologist or technologist will ask whether you have any allergies, especially to medications or iodine, and whether you have a history of diabetes, asthma, a heart condition, kidney problems, or thyroid conditions. These conditions may indicate a higher risk of reaction to the contrast material or potential problems eliminating the material from your system after the exam.

You may be asked to remove hairpins, jewelry, eyeglasses, hearing aids, and any removable dental work that could obscure the images.

7 Page 3 Imaging Services Abdominal CT Scan Questions? Your questions are important. Call your doctor or health care provider if you have questions or concerns. Clinic staff are also available to help. UWMC Imaging Services: Harborview Imaging Services: A CT exam usually takes 5 to 30 minutes. When the exam is over, you may be asked to wait until the images are checked to find out if more images are needed. What will I feel during the scan? CT scanning causes no pain, and with spiral CT, the need to lie still for any length of time is reduced. For exams of the abdomen and lower gastrointestinal tract, you may be asked to swallow either water or a positive contrast material, a liquid that allows the radiologist to better see the stomach, small bowel, and colon. Some patients find the taste of the contrast material mildly unpleasant, but most can tolerate it well. Your exam may require the administration of the material by enema if the colon is the focus of the study. You will be alone in the room during the scan. The technologist can see, hear and speak with you at all times. For pediatric patients, a parent may be allowed in the room with their child to help reduce fear and provide comfort. The parent will be required to wear a lead apron to prevent radiation exposure. Who interprets the results and how do I get them? A radiologist skilled in CT scanning will review and interpret the CT findings and will send a detailed report to your primary care or referring doctor, who will give you the results. The radiologist will not discuss the results with you. UWMC Imaging Services Box N.E. Pacific St. Seattle, WA University of Washington Medical Center 05/2005 Rev. 05/2010 Reprints on Health Online:

When the exam is over, you may be asked to wait until the images are checked to find out if more images are needed. What will I feel during the scan?

UTI (Urinary Tract Infection) - Traditional Chinese

UTI (Urinary Tract Infection) Urinary tract infection, also called UTI, is an infection of the bladder or kidneys. Urethra Kidney Ureters Bladder Vagina Kidney Ureters Bladder Urethra Penis Causes UTI

第 2 頁 造 影 服 務 部 腹 部 CT 掃 描 如 何 爲 CT 掃 描 做 準 備? 做 CT 掃 描 時 要 穿 上 舒 適 寬 鬆 的 衣 服 金 屬 物 體 會 影 響 圖 像 質 量, 所 以 不 要 穿 有 拉 鏈 和 摁 扣 的 衣 服 可 能 會 要 求 您 取 下 髮 夾 首

第 2 頁造影服務部腹部 CT 掃描如何爲 CT 掃描做準備? 做 CT 掃描時要穿上舒適寬鬆的衣服金屬物體會影響圖像質量, 所以不要穿有拉鏈和摁扣的衣服可能會要求您取下髮夾首