{"id":111720,"date":"2023-12-23T17:08:53","date_gmt":"2023-12-23T11:38:53","guid":{"rendered":"https:\/\/beehighmedia.com\/demo\/aarthinew\/?post_type=blogs&#038;p=111720"},"modified":"2025-12-30T03:22:41","modified_gmt":"2025-12-30T08:52:41","slug":"how-does-positron-emission-tomography-pet-scan-work","status":"publish","type":"post","link":"https:\/\/beehighmedia.com\/demo\/aarthinew\/blogs\/how-does-positron-emission-tomography-pet-scan-work\/","title":{"rendered":"How does Positron Emission Tomography work?"},"content":{"rendered":"<p><span data-contrast=\"none\">Ever wondered about the inner workings of PET scans? PET Scan is one of the vital diagnostic tests. Understanding how PET scans operate is crucial for making informed decisions regarding your health. Join us to learn about the mechanics of PET scans!\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:120,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"none\">Positron Emission Tomography (PET) is a nuclear medicine imaging method that uses radioactive tracers to observe organ function in real time. In this technique, a PET scanner emits positrons\u2014particles interacting with tissues and generating gamma rays. PET scanner captures gamma rays, constructing images that show the cellular metabolic activity. It diagnoses various conditions such as cancer, heart disease, and brain disorders effectively. It also measures essential functions like blood flow and blood sugar metabolism. <\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:120,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"none\">They are particularly effective at showing areas of increased metabolic activity. PET scans reveal small tumors which might go undetectable on other diagnostic tests such as CT or MRI.\u00a0\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:120,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<h3>Preparations required for PET Scan<\/h3>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"91\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"none\">Typically, you&#8217;ll need to fast for several hours (usually 6-8 hours) before the PET scan, especially if the scan is around abdominal area. <\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:120,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"91\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span data-contrast=\"none\">Refrain from intense physical activities for at least 12 hours before the scan to ensure accurate results.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:120,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"91\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span data-contrast=\"none\">Consult with your healthcare provider regarding any medications you are taking, as certain medications may interfere with the scan.\u00a0\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:120,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"91\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"4\" data-aria-level=\"1\"><span data-contrast=\"none\">Drink plenty of water to stay well-hydrated before the scan, unless instructed otherwise by your healthcare provider.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:120,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"91\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"5\" data-aria-level=\"1\"><span data-contrast=\"none\">Wear comfortable clothing without metal zippers or buttons, as you may be asked to change into a hospital gown.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:120,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"91\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"6\" data-aria-level=\"1\"><span data-contrast=\"none\">Notify if you are pregnant or breastfeeding, as special precautions may be necessary.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:120,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<h3>\u00a0How does the scan work?<\/h3>\n<p><span data-contrast=\"none\">A PET scan is a type of nuclear medicine imaging method utilizing minimal, safe doses of radioactive substances known as radiotracers. It is administered through an IV and introduced into the body. This radioactive glucose variant is infused into a vein, and the PET scanner captures images. Once it is injected, the patient undergoes whole-body imaging with the PET scanner. <\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:120,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"none\">The purpose of a PET scan is to detect malignant cysts and tumors that was essentially missed or challenging to characterize using conventional <a href=\"https:\/\/beehighmedia.com\/demo\/aarthinew\/chennai\/ct-scan\/\">CT scans<\/a>, X-rays, or MRIs. Unlike traditional imaging methods, PET scans visualize biological processes and molecular activity within the body, providing the potential to identify diseases in their early stages. <\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:120,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"none\">Diseased cells in our bodies have higher absorption of the radiotracer compared to healthy cells, creating areas known as &#8220;hot spots.&#8221; The PET scanner detects and captures the radiation emitted from these hot spots, generating images of the affected tissue. For a more comprehensive examination, a PET\/CT scan merges CT scan with the PET scan images. <\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:120,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<h3><b><span data-contrast=\"none\">\u00a0<\/span><\/b><br \/>\nWhat should you expect during the scan?<\/h3>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"97\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"7\" data-aria-level=\"1\"><span data-contrast=\"none\">Once you\u2019re prepped, blood sugar levels are checked and then the radioactive tracer is injected into your vein through the intravenous line. <\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:120,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"97\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"8\" data-aria-level=\"1\"><span data-contrast=\"none\">You\u2019ll be made to sit in a chair for about an hour while the radiotracer goes through the bloodstream and gets absorbed by your organs and tissues.\u00a0\u00a0\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:120,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"97\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"9\" data-aria-level=\"1\"><span data-contrast=\"none\">You must remain still during the scan. However. any movement will blur the image. <\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:120,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"97\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"10\" data-aria-level=\"1\"><span data-contrast=\"none\">The scanner makes buzzing and clicking sounds as it takes the images.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:120,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"none\">PET scans are an important tool in the field of diagnosis to detect several diseases from cancer to heart diseases. They provide more precision and enhanced diagnosis because of their usage of radiotracers. So next time you\u2019re going into a PET scan with knowledge about the procedure and working of PET scans, you can make more informed choices and ask the right questions.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:120,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ever wondered about the inner workings of PET scans? PET Scan is one of the vital diagnostic tests. Understanding how PET scans operate is crucial for making informed decisions regarding your health. Join us to learn about the mechanics of PET scans!\u00a0\u00a0 Positron Emission Tomography (PET) is a nuclear medicine imaging method that uses radioactive [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":112577,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-111720","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/beehighmedia.com\/demo\/aarthinew\/wp-json\/wp\/v2\/posts\/111720","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/beehighmedia.com\/demo\/aarthinew\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/beehighmedia.com\/demo\/aarthinew\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/beehighmedia.com\/demo\/aarthinew\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/beehighmedia.com\/demo\/aarthinew\/wp-json\/wp\/v2\/comments?post=111720"}],"version-history":[{"count":0,"href":"https:\/\/beehighmedia.com\/demo\/aarthinew\/wp-json\/wp\/v2\/posts\/111720\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/beehighmedia.com\/demo\/aarthinew\/wp-json\/wp\/v2\/media\/112577"}],"wp:attachment":[{"href":"https:\/\/beehighmedia.com\/demo\/aarthinew\/wp-json\/wp\/v2\/media?parent=111720"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/beehighmedia.com\/demo\/aarthinew\/wp-json\/wp\/v2\/categories?post=111720"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/beehighmedia.com\/demo\/aarthinew\/wp-json\/wp\/v2\/tags?post=111720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}