{"id":47707,"date":"2017-04-23T23:00:00","date_gmt":"2017-04-23T23:00:00","guid":{"rendered":"https:\/\/www.imv-imaging.com\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/"},"modified":"2024-02-01T14:51:54","modified_gmt":"2024-02-01T14:51:54","slug":"why-does-field-of-view-matter-on-veterinary-ct","status":"publish","type":"post","link":"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/","title":{"rendered":"Why does field of view matter on veterinary CT?"},"content":{"rendered":"

Written by Kat Evans, Applications Specialist<\/p>\n<\/p>\n

Why does field of view matter on CT?<\/strong><\/p>\n

When preparing for a CT scan, it is important to consider the size of your field of view (FOV). This can have a massive impact on image quality. The size of the chosen FOV will actually have a much greater impact on image quality than the resolution of your detector.<\/p>\n

Historically CT and MRI scanners were configured to export images on a 512×512 matrix, (the number of pixels on the digital image) which was set to tie in to the resolution of the monitors used for viewing images, and the capabilities of the medical laser printers used when printing images. This matrix has since been adopted as an industry standard within human medical imaging; 1024×1024 is the only other option if a higher resolution image was required. Remember, though, that increasing your matrix from 512×512 up to 1024×1024 actually quadruples the size of the file, and when you may have 300 slices within a CT scan you can very quickly have a massive file to handle, which will quickly fill space on your image storage system.<\/p>\n

You should always set the field of view to be as small as possible, whilst still covering all your required anatomy. When you later view your scan, the anatomy should fill the scan area- and thus the screen. If when you view an image you are always having to magnify it, you will have used valuable storage space to save images of \u2018fresh air\u2019, and will have reduced your image quality<\/p>\n

If you look at these basic examples you can see this (I have used a very small matrix).<\/p>\n

On the first image the scan is only covering 6×6 pixels, so when this is scaled up to 512×512 you will get a very \u2018pixelated\u2019 image.<\/p>\n

On the second example the scan is covering 15×15 pixels, so when this is scaled up to 512×512 this will give you a much better image quality.<\/p>\n

\"field<\/p>\n

\"close<\/p>\n

 <\/p>\n

Keeping the field of view as small as possible will ensure you are getting the best image quality.<\/p>\n

There is no change in radiation dose to the patient by having a larger or smaller field of view. <\/p>\n

Very often you can do retrospective reconstructions to help improve your image; this can often rescue you if you have accidentally clipped anatomy. Retrospective recontruction can also enable you to indivually reconstruct structures that have been scanned at the same time- for example stifles.<\/p>\n

But it shouldn\u2019t be used to try to disguise that extra body parts have been scanned, for example if the dogs feet had been left near its head during a brain scan.<\/p>\n

So remember, try to keep your field of view as small as possible, which will give you nice large images, and will help optimise your CT scan image quality.<\/p>\n

View our range of CT systems >><\/a><\/p>\n

\n

We hope you enjoyed this blog post!<\/span><\/h4>\n

\"Blog<\/a>   <\/span>\"Subscribe<\/a>   <\/p>\n

Don’t forget to share! \ud83d\udc47<\/p>\n","protected":false},"excerpt":{"rendered":"

Written by Kat Evans, Applications Specialist<\/p>\n","protected":false},"author":15701,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","ep_exclude_from_search":false,"footnotes":""},"categories":[1],"class_list":["post-47707","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"yoast_head":"\nWhy does field of view matter on veterinary CT?<\/title>\n<meta name=\"description\" content=\"When preparing for a CT scan, it is important to consider the size of your field of view (FOV). Read our article to find out why the field of view matters\" \/>\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.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why does field of view matter on veterinary CT?\" \/>\n<meta property=\"og:description\" content=\"When preparing for a CT scan, it is important to consider the size of your field of view (FOV). Read our article to find out why the field of view matters\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/\" \/>\n<meta property=\"og:site_name\" content=\"IMV imaging\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/imvimaging.northamerica\/\" \/>\n<meta property=\"article:published_time\" content=\"2017-04-23T23:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-02-01T14:51:54+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/f.hubspotusercontent00.net\/hubfs\/7971300\/Imported_Blog_Media\/field-of-view-1-2.jpg\" \/>\n<meta name=\"author\" content=\"Site Administrator\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@IMVimaging\" \/>\n<meta name=\"twitter:site\" content=\"@IMVimaging\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Site Administrator\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/\"},\"author\":{\"name\":\"Site Administrator\",\"@id\":\"https:\/\/www.imv-imaging.com\/en\/#\/schema\/person\/18bfd4912bc3896e0a98658c49e68e55\"},\"headline\":\"Why does field of view matter on veterinary CT?\",\"datePublished\":\"2017-04-23T23:00:00+00:00\",\"dateModified\":\"2024-02-01T14:51:54+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/\"},\"wordCount\":501,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.imv-imaging.com\/en\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/f.hubspotusercontent00.net\/hubfs\/7971300\/Imported_Blog_Media\/field-of-view-1-2.jpg\",\"articleSection\":[\"Uncategorized\"],\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/\",\"url\":\"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/\",\"name\":\"Why does field of view matter on veterinary CT?\",\"isPartOf\":{\"@id\":\"https:\/\/www.imv-imaging.com\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/f.hubspotusercontent00.net\/hubfs\/7971300\/Imported_Blog_Media\/field-of-view-1-2.jpg\",\"datePublished\":\"2017-04-23T23:00:00+00:00\",\"dateModified\":\"2024-02-01T14:51:54+00:00\",\"description\":\"When preparing for a CT scan, it is important to consider the size of your field of view (FOV). Read our article to find out why the field of view matters\",\"breadcrumb\":{\"@id\":\"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/#primaryimage\",\"url\":\"https:\/\/f.hubspotusercontent00.net\/hubfs\/7971300\/Imported_Blog_Media\/field-of-view-1-2.jpg\",\"contentUrl\":\"https:\/\/f.hubspotusercontent00.net\/hubfs\/7971300\/Imported_Blog_Media\/field-of-view-1-2.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.imv-imaging.com\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Why does field of view matter on veterinary CT?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.imv-imaging.com\/en\/#website\",\"url\":\"https:\/\/www.imv-imaging.com\/en\/\",\"name\":\"IMV Imaging\",\"description\":\"More than just imaging\",\"publisher\":{\"@id\":\"https:\/\/www.imv-imaging.com\/en\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.imv-imaging.com\/en\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.imv-imaging.com\/en\/#organization\",\"name\":\"IMV Imaging\",\"url\":\"https:\/\/www.imv-imaging.com\/en\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/www.imv-imaging.com\/en\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.imv-imaging.com\/wp-content\/uploads\/2023\/01\/viewcloud-logo-large.jpg\",\"contentUrl\":\"https:\/\/www.imv-imaging.com\/wp-content\/uploads\/2023\/01\/viewcloud-logo-large.jpg\",\"width\":770,\"height\":400,\"caption\":\"IMV Imaging\"},\"image\":{\"@id\":\"https:\/\/www.imv-imaging.com\/en\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/imvimaging.northamerica\/\",\"https:\/\/x.com\/IMVimaging\",\"https:\/\/www.linkedin.com\/company\/imv-imaging\/\",\"https:\/\/www.youtube.com\/channel\/UCM294Ky6760YOaPsiuS2-Dg\",\"https:\/\/www.instagram.com\/imv.imaging\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.imv-imaging.com\/en\/#\/schema\/person\/18bfd4912bc3896e0a98658c49e68e55\",\"name\":\"Site Administrator\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/www.imv-imaging.com\/en\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/cbf7ea2b2ad78548406283f15d7178cc?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/cbf7ea2b2ad78548406283f15d7178cc?s=96&d=mm&r=g\",\"caption\":\"Site Administrator\"}}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Why does field of view matter on veterinary CT?","description":"When preparing for a CT scan, it is important to consider the size of your field of view (FOV). Read our article to find out why the field of view matters","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.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/","og_locale":"en_GB","og_type":"article","og_title":"Why does field of view matter on veterinary CT?","og_description":"When preparing for a CT scan, it is important to consider the size of your field of view (FOV). Read our article to find out why the field of view matters","og_url":"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/","og_site_name":"IMV imaging","article_publisher":"https:\/\/www.facebook.com\/imvimaging.northamerica\/","article_published_time":"2017-04-23T23:00:00+00:00","article_modified_time":"2024-02-01T14:51:54+00:00","og_image":[{"url":"https:\/\/f.hubspotusercontent00.net\/hubfs\/7971300\/Imported_Blog_Media\/field-of-view-1-2.jpg","type":"","width":"","height":""}],"author":"Site Administrator","twitter_card":"summary_large_image","twitter_creator":"@IMVimaging","twitter_site":"@IMVimaging","twitter_misc":{"Written by":"Site Administrator","Estimated reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/#article","isPartOf":{"@id":"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/"},"author":{"name":"Site Administrator","@id":"https:\/\/www.imv-imaging.com\/en\/#\/schema\/person\/18bfd4912bc3896e0a98658c49e68e55"},"headline":"Why does field of view matter on veterinary CT?","datePublished":"2017-04-23T23:00:00+00:00","dateModified":"2024-02-01T14:51:54+00:00","mainEntityOfPage":{"@id":"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/"},"wordCount":501,"commentCount":0,"publisher":{"@id":"https:\/\/www.imv-imaging.com\/en\/#organization"},"image":{"@id":"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/#primaryimage"},"thumbnailUrl":"https:\/\/f.hubspotusercontent00.net\/hubfs\/7971300\/Imported_Blog_Media\/field-of-view-1-2.jpg","articleSection":["Uncategorized"],"inLanguage":"en-GB","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/","url":"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/","name":"Why does field of view matter on veterinary CT?","isPartOf":{"@id":"https:\/\/www.imv-imaging.com\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/#primaryimage"},"image":{"@id":"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/#primaryimage"},"thumbnailUrl":"https:\/\/f.hubspotusercontent00.net\/hubfs\/7971300\/Imported_Blog_Media\/field-of-view-1-2.jpg","datePublished":"2017-04-23T23:00:00+00:00","dateModified":"2024-02-01T14:51:54+00:00","description":"When preparing for a CT scan, it is important to consider the size of your field of view (FOV). Read our article to find out why the field of view matters","breadcrumb":{"@id":"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/#primaryimage","url":"https:\/\/f.hubspotusercontent00.net\/hubfs\/7971300\/Imported_Blog_Media\/field-of-view-1-2.jpg","contentUrl":"https:\/\/f.hubspotusercontent00.net\/hubfs\/7971300\/Imported_Blog_Media\/field-of-view-1-2.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/www.imv-imaging.com\/en\/2017\/04\/why-does-field-of-view-matter-on-veterinary-ct\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.imv-imaging.com\/en\/"},{"@type":"ListItem","position":2,"name":"Why does field of view matter on veterinary CT?"}]},{"@type":"WebSite","@id":"https:\/\/www.imv-imaging.com\/en\/#website","url":"https:\/\/www.imv-imaging.com\/en\/","name":"IMV Imaging","description":"More than just imaging","publisher":{"@id":"https:\/\/www.imv-imaging.com\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.imv-imaging.com\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/www.imv-imaging.com\/en\/#organization","name":"IMV Imaging","url":"https:\/\/www.imv-imaging.com\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.imv-imaging.com\/en\/#\/schema\/logo\/image\/","url":"https:\/\/www.imv-imaging.com\/wp-content\/uploads\/2023\/01\/viewcloud-logo-large.jpg","contentUrl":"https:\/\/www.imv-imaging.com\/wp-content\/uploads\/2023\/01\/viewcloud-logo-large.jpg","width":770,"height":400,"caption":"IMV Imaging"},"image":{"@id":"https:\/\/www.imv-imaging.com\/en\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/imvimaging.northamerica\/","https:\/\/x.com\/IMVimaging","https:\/\/www.linkedin.com\/company\/imv-imaging\/","https:\/\/www.youtube.com\/channel\/UCM294Ky6760YOaPsiuS2-Dg","https:\/\/www.instagram.com\/imv.imaging\/"]},{"@type":"Person","@id":"https:\/\/www.imv-imaging.com\/en\/#\/schema\/person\/18bfd4912bc3896e0a98658c49e68e55","name":"Site Administrator","image":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.imv-imaging.com\/en\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/cbf7ea2b2ad78548406283f15d7178cc?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/cbf7ea2b2ad78548406283f15d7178cc?s=96&d=mm&r=g","caption":"Site Administrator"}}]}},"_links":{"self":[{"href":"https:\/\/www.imv-imaging.com\/en\/wp-json\/wp\/v2\/posts\/47707","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.imv-imaging.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.imv-imaging.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.imv-imaging.com\/en\/wp-json\/wp\/v2\/users\/15701"}],"replies":[{"embeddable":true,"href":"https:\/\/www.imv-imaging.com\/en\/wp-json\/wp\/v2\/comments?post=47707"}],"version-history":[{"count":0,"href":"https:\/\/www.imv-imaging.com\/en\/wp-json\/wp\/v2\/posts\/47707\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.imv-imaging.com\/en\/wp-json\/wp\/v2\/media?parent=47707"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.imv-imaging.com\/en\/wp-json\/wp\/v2\/categories?post=47707"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}