{"id":50464,"date":"2025-04-25T21:28:07","date_gmt":"2025-04-26T01:28:07","guid":{"rendered":"https:\/\/www.hancockhealth.org\/mayo-health-library\/computerized-tomography-ct-urogram\/"},"modified":"2026-02-04T11:41:46","modified_gmt":"2026-02-04T16:41:46","slug":"computerized-tomography-ct-urogram","status":"publish","type":"mayo","link":"https:\/\/www.hancockhealth.org\/ja\/mayo-health-library\/computerized-tomography-ct-urogram\/","title":{"rendered":"Computerized tomography (CT) urogram"},"content":{"rendered":"<div class=\"container mx-auto   wordpress-block wordpress- core-\">\n<p>A computerized tomography (CT) urogram is an imaging exam used to evaluate the urinary tract. The urinary tract includes the kidneys, bladder and the tubes (ureters) that carry urine from the kidneys to the bladder.<\/p>\n<p>\u3042 <abbr title=\"Computerized tomography\">CT<\/abbr> urogram uses X-rays to generate multiple images of a slice of the area in your body being studied, including bones, soft tissues and blood vessels. These images are then sent to a computer and quickly reconstructed into detailed 2D images.<\/p>\n<p>During a <abbr title=\"Computerized tomography\">CT<\/abbr> urogram, an X-ray dye (iodine contrast material) is injected into a vein in your hand or arm. The dye flows into the kidneys, ureters and bladder, outlining each of these structures. X-ray pictures are taken at specific times during the exam, so your doctor can clearly see your urinary tract and assess how well it&#8217;s working.<\/p>\n<p>\u3042 <abbr title=\"Computerized tomography\">CT<\/abbr> urogram is used to examine the kidneys, ureters and bladder. It lets your doctor see the size and shape of these structures to determine if they&#8217;re working properly and to look for any signs of disease that may affect your urinary system.<\/p>\n<p>Your doctor may recommend a <abbr title=\"Computerized tomography\">CT<\/abbr> urogram if you have signs and symptoms &mdash; such as pain in your side or back or blood in your urine (hematuria) &mdash; that may be related to a urinary tract disorder.<\/p>\n<p>\u3042 <abbr title=\"Computerized tomography\">CT<\/abbr> urogram may be helpful in diagnosing urinary tract conditions such as:<\/p>\n<ul>\n<li>Kidney stones<\/li>\n<li>Bladder stones<\/li>\n<li>\u8907\u96d1\u306a\u611f\u67d3\u75c7<\/li>\n<li>Tumors or cysts<\/li>\n<li>\u764c<\/li>\n<li>Structural problems<\/li>\n<\/ul>\n<p>With a <abbr title=\"Computerized tomography\">CT<\/abbr> urogram, there&#8217;s a slight risk of an allergic reaction to the contrast material. Reactions are generally mild and easily managed by medication. They include:<\/p>\n<ul>\n<li>A feeling of warmth or flushing<\/li>\n<li>Nausea<\/li>\n<li>Itching<\/li>\n<li>Hives<\/li>\n<li>Pain near the injection site<\/li>\n<\/ul>\n<p>A single <abbr title=\"Computerized tomography\">CT<\/abbr> urogram carries no risk of developing cancer after radiation exposure. But, multiple tests or radiation exposures may cause a slightly increased cancer risk. Typically, the benefit of an accurate diagnosis far outweighs this risk. Work continues on ways to reduce radiation exposure during a <abbr title=\"Computerized tomography\">CT<\/abbr> urogram test.<\/p>\n<p>If you are pregnant or think that you may be pregnant, tell your doctor before having a <abbr title=\"Computerized tomography\">CT<\/abbr> urogram. Though the risk to an unborn baby is small, your doctor may consider whether it&#8217;s better to wait or to use another imaging test.<\/p>\n<p>Before a <abbr title=\"Computerized tomography\">CT<\/abbr> urogram, tell your health care team if you:<\/p>\n<ul>\n<li>Have any allergies, particularly to iodine<\/li>\n<li>Are pregnant or think you might be pregnant<\/li>\n<li>Have had a previous severe reaction to X-ray dyes<\/li>\n<li>Are taking any medications, such as metformin (Fortamet, Glucophage, others), nonsteroidal anti-inflammatory drugs (NSAIDs), anti-rejection drugs or antibiotics<\/li>\n<li>Have had a recent illness<\/li>\n<li>Have a medical condition, such as heart disease, asthma, diabetes, kidney disease or a prior organ transplantation<\/li>\n<\/ul>\n<p>You may be asked to drink water before a <abbr title=\"Computerized tomography\">CT<\/abbr> urogram and not to urinate until after the procedure. This expands your bladder. But, depending on your condition, guidelines about what to eat and drink before your <abbr title=\"Computerized tomography\">CT<\/abbr> urogram may vary.<\/p>\n<p>Before your <abbr title=\"Computerized tomography\">CT<\/abbr> urogram, a member of your health care team may:<\/p>\n<ul>\n<li>Ask you questions about your medical history<\/li>\n<li>Check your blood pressure, pulse and body temperature<\/li>\n<li>Ask you to change into a hospital gown and remove jewelry, eyeglasses and any metal objects that may obscure the X-ray images<\/li>\n<\/ul>\n<h3>During a CT urogram<\/h3>\n<p>For a typical <abbr title=\"Computerized tomography\">CT<\/abbr> urogram, you lie on your back on an exam table, though you may be asked to lie on your side or stomach. Straps and pillows may be used to help you maintain the correct position and keep still during the exam. You may be asked to change positions during the <abbr title=\"Computerized tomography\">CT<\/abbr> urogram.<\/p>\n<p>\u30a2\u30f3 <abbr title=\"Intravenous\">IV<\/abbr> line is placed into a vein in your hand or arm through which the X-ray dye is injected. You may feel a warm, flushed sensation when the dye is injected and notice a metallic taste in your mouth for a minute or two. The contrast material may briefly make you feel like you have to urinate.<\/p>\n<p>Before the exam begins, the table moves quickly through the scanner to determine the correct starting position for your scans. For the actual <abbr title=\"Computerized tomography\">CT<\/abbr> urogram, the table moves slowly through the machine while the images are taken. If needed, the machine may make several passes.<\/p>\n<p>The machine makes slight buzzing and clicking sounds while it takes pictures. To keep the images from blurring, the technician may ask you to hold your breath for a few seconds during the scanning.<\/p>\n<p>After the <abbr title=\"Computerized tomography\">CT<\/abbr> urogram is complete, the technician checks the images for quality while you wait.<\/p>\n<h3>After a CT urogram<\/h3>\n<p>When the test is done, the <abbr title=\"Intravenous\">IV<\/abbr> line is removed from your arm and the <abbr title=\"Intravenous\">IV<\/abbr> entry point is covered with a dressing. Most people return to their usual activities after the test.<\/p>\n<p>A doctor who specializes in reading X-rays (radiologist) reviews and interprets the X-ray images from your <abbr title=\"Computerized tomography\">CT<\/abbr> urogram and sends a report to your doctor. Plan to discuss the results with your doctor at a follow-up appointment.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Learn more about this imaging exam used to diagnose urinary tract disorders.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","tags":[1686,1687,1682],"class_list":["post-50464","mayo","type-mayo","status-publish","hentry","tag-anatomical-structure","tag-medical-procedure","tag-person-group-concept","content_type-tests-procedures"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Computerized tomography (CT) urogram - Hancock Health<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.hancockhealth.org\/ja\/mayo-health-library\/computerized-tomography-ct-urogram\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Computerized tomography (CT) urogram - Hancock Health\" \/>\n<meta property=\"og:description\" content=\"Learn more about this imaging exam used to diagnose urinary tract disorders.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.hancockhealth.org\/ja\/mayo-health-library\/computerized-tomography-ct-urogram\/\" \/>\n<meta property=\"og:site_name\" content=\"Hancock Health\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-04T16:41:46+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data1\" content=\"4\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.hancockhealth.org\\\/mayo-health-library\\\/computerized-tomography-ct-urogram\\\/\",\"url\":\"https:\\\/\\\/www.hancockhealth.org\\\/mayo-health-library\\\/computerized-tomography-ct-urogram\\\/\",\"name\":\"Computerized tomography (CT) urogram - Hancock Health\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.hancockhealth.org\\\/#website\"},\"datePublished\":\"2025-04-26T01:28:07+00:00\",\"dateModified\":\"2026-02-04T16:41:46+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.hancockhealth.org\\\/mayo-health-library\\\/computerized-tomography-ct-urogram\\\/#breadcrumb\"},\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.hancockhealth.org\\\/mayo-health-library\\\/computerized-tomography-ct-urogram\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.hancockhealth.org\\\/mayo-health-library\\\/computerized-tomography-ct-urogram\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.hancockhealth.org\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Mayo Articles\",\"item\":\"https:\\\/\\\/www.hancockhealth.org\\\/mayo-health-library\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Computerized tomography (CT) urogram\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.hancockhealth.org\\\/#website\",\"url\":\"https:\\\/\\\/www.hancockhealth.org\\\/\",\"name\":\"Hancock Health\",\"description\":\"Explore a health network built around you.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.hancockhealth.org\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ja\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Computerized tomography (CT) urogram - Hancock Health","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.hancockhealth.org\/ja\/mayo-health-library\/computerized-tomography-ct-urogram\/","og_locale":"ja_JP","og_type":"article","og_title":"Computerized tomography (CT) urogram - Hancock Health","og_description":"Learn more about this imaging exam used to diagnose urinary tract disorders.","og_url":"https:\/\/www.hancockhealth.org\/ja\/mayo-health-library\/computerized-tomography-ct-urogram\/","og_site_name":"Hancock Health","article_modified_time":"2026-02-04T16:41:46+00:00","twitter_card":"summary_large_image","twitter_misc":{"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593":"4\u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.hancockhealth.org\/mayo-health-library\/computerized-tomography-ct-urogram\/","url":"https:\/\/www.hancockhealth.org\/mayo-health-library\/computerized-tomography-ct-urogram\/","name":"Computerized tomography (CT) urogram - Hancock Health","isPartOf":{"@id":"https:\/\/www.hancockhealth.org\/#website"},"datePublished":"2025-04-26T01:28:07+00:00","dateModified":"2026-02-04T16:41:46+00:00","breadcrumb":{"@id":"https:\/\/www.hancockhealth.org\/mayo-health-library\/computerized-tomography-ct-urogram\/#breadcrumb"},"inLanguage":"ja","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.hancockhealth.org\/mayo-health-library\/computerized-tomography-ct-urogram\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.hancockhealth.org\/mayo-health-library\/computerized-tomography-ct-urogram\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.hancockhealth.org\/"},{"@type":"ListItem","position":2,"name":"Mayo Articles","item":"https:\/\/www.hancockhealth.org\/mayo-health-library\/"},{"@type":"ListItem","position":3,"name":"Computerized tomography (CT) urogram"}]},{"@type":"WebSite","@id":"https:\/\/www.hancockhealth.org\/#website","url":"https:\/\/www.hancockhealth.org\/","name":"\u30cf\u30f3\u30b3\u30c3\u30af\u306e\u5065\u5eb7","description":"Explore a health network built around you.","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.hancockhealth.org\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ja"}]}},"_links":{"self":[{"href":"https:\/\/www.hancockhealth.org\/ja\/wp-json\/wp\/v2\/mayo\/50464","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hancockhealth.org\/ja\/wp-json\/wp\/v2\/mayo"}],"about":[{"href":"https:\/\/www.hancockhealth.org\/ja\/wp-json\/wp\/v2\/types\/mayo"}],"author":[{"embeddable":true,"href":"https:\/\/www.hancockhealth.org\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hancockhealth.org\/ja\/wp-json\/wp\/v2\/comments?post=50464"}],"wp:attachment":[{"href":"https:\/\/www.hancockhealth.org\/ja\/wp-json\/wp\/v2\/media?parent=50464"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hancockhealth.org\/ja\/wp-json\/wp\/v2\/tags?post=50464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}