A method of correcting for linear drift in computed tomography brain scans
Linear drift of X-ray attenuation coefficients must be corrected if quantitative comparisons are to be made between computed tomography (CT) brain scans of the same individual performed at different times. Such a correction is accomplished by comparing the low (cerebrospinal fluid) end of the attenu...
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| Veröffentlicht in: | Journal of computer assisted tomography 1979-04, Vol.3 (2), p.251-255 |
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| container_end_page | 255 |
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| container_issue | 2 |
| container_start_page | 251 |
| container_title | Journal of computer assisted tomography |
| container_volume | 3 |
| creator | Thaler, H T Rottenberg, D A Pentlow, K S Allen, J C |
| description | Linear drift of X-ray attenuation coefficients must be corrected if quantitative comparisons are to be made between computed tomography (CT) brain scans of the same individual performed at different times. Such a correction is accomplished by comparing the low (cerebrospinal fluid) end of the attenuation coefficient frequency histograms using a percentile--percentile plot. A "drift correction" permits serial quantitative assessments of the progression or regression of white matter hypodensity, such as occurs in drug induced leukoencephalopathy. |
| doi_str_mv | 10.1097/00004728-197904000-00019 |
| format | Article |
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A "drift correction" permits serial quantitative assessments of the progression or regression of white matter hypodensity, such as occurs in drug induced leukoencephalopathy.</description><subject>Adolescent</subject><subject>Brain - diagnostic imaging</subject><subject>Brain Diseases - chemically induced</subject><subject>Brain Diseases - diagnostic imaging</subject><subject>Cerebellar Neoplasms - diagnostic imaging</subject><subject>Cerebral Ventriculography</subject><subject>Cerebrospinal Fluid</subject><subject>Electronics, Medical</subject><subject>Glioma - diagnostic imaging</subject><subject>Humans</subject><subject>Methotrexate - adverse effects</subject><subject>Tomography, X-Ray Computed - methods</subject><issn>0363-8715</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1979</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo9kMtOwzAQRb3gVQp_wMI_ELDr97KqgIIqsYG15fjRBjVxZLuL_j0ugY40Gs1c3avRAQBi9IiREk-oFhUL2WAlFKJ1a2pjdQFmiHDSSIHZDbjN-bteBSH0GlwRjIWiM_C-hL0vu-hgDNDGlLwt3bCFISa47wZvEnSpCwV2Q5X78VC8gyX2cZvMuDvCNpmqZGuGfAcug9lnf_835-Dr5flztW42H69vq-WmsQSp0jAcpBTWSuZaz3E4fWLtohWOGUIcUYxxTp1RTCEVuDKBCmpxi7knC08NmQM55doUc04-6DF1vUlHjZE-AdH_QPQZiP4FUq0Pk3U8tL13Z-NEg_wAz4ddgg</recordid><startdate>197904</startdate><enddate>197904</enddate><creator>Thaler, H T</creator><creator>Rottenberg, D A</creator><creator>Pentlow, K S</creator><creator>Allen, J C</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>197904</creationdate><title>A method of correcting for linear drift in computed tomography brain scans</title><author>Thaler, H T ; Rottenberg, D A ; Pentlow, K S ; Allen, J C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c309t-51f887cc85dbe61f3117cc2b7d5a33d3955664da95909f69af474c1b16e32e4a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1979</creationdate><topic>Adolescent</topic><topic>Brain - diagnostic imaging</topic><topic>Brain Diseases - chemically induced</topic><topic>Brain Diseases - diagnostic imaging</topic><topic>Cerebellar Neoplasms - diagnostic imaging</topic><topic>Cerebral Ventriculography</topic><topic>Cerebrospinal Fluid</topic><topic>Electronics, Medical</topic><topic>Glioma - diagnostic imaging</topic><topic>Humans</topic><topic>Methotrexate - adverse effects</topic><topic>Tomography, X-Ray Computed - methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Thaler, H T</creatorcontrib><creatorcontrib>Rottenberg, D A</creatorcontrib><creatorcontrib>Pentlow, K S</creatorcontrib><creatorcontrib>Allen, J C</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><jtitle>Journal of computer assisted tomography</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Thaler, H T</au><au>Rottenberg, D A</au><au>Pentlow, K S</au><au>Allen, J C</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A method of correcting for linear drift in computed tomography brain scans</atitle><jtitle>Journal of computer assisted tomography</jtitle><addtitle>J Comput Assist Tomogr</addtitle><date>1979-04</date><risdate>1979</risdate><volume>3</volume><issue>2</issue><spage>251</spage><epage>255</epage><pages>251-255</pages><issn>0363-8715</issn><abstract>Linear drift of X-ray attenuation coefficients must be corrected if quantitative comparisons are to be made between computed tomography (CT) brain scans of the same individual performed at different times. Such a correction is accomplished by comparing the low (cerebrospinal fluid) end of the attenuation coefficient frequency histograms using a percentile--percentile plot. A "drift correction" permits serial quantitative assessments of the progression or regression of white matter hypodensity, such as occurs in drug induced leukoencephalopathy.</abstract><cop>United States</cop><pmid>311794</pmid><doi>10.1097/00004728-197904000-00019</doi><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0363-8715 |
| ispartof | Journal of computer assisted tomography, 1979-04, Vol.3 (2), p.251-255 |
| issn | 0363-8715 |
| language | eng |
| recordid | cdi_crossref_primary_10_1097_00004728_197904000_00019 |
| source | MEDLINE; Journals@Ovid Complete |
| subjects | Adolescent Brain - diagnostic imaging Brain Diseases - chemically induced Brain Diseases - diagnostic imaging Cerebellar Neoplasms - diagnostic imaging Cerebral Ventriculography Cerebrospinal Fluid Electronics, Medical Glioma - diagnostic imaging Humans Methotrexate - adverse effects Tomography, X-Ray Computed - methods |
| title | A method of correcting for linear drift in computed tomography brain scans |
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