Measurements of multidetector CT surface dose distributions using a film dosimeter and chest phantom
Purpose: This paper uses film dosimetry to investigate the relationship between multiple scan parameters of multidetector CT with automatic exposure control (AEC) and the surface dose distribution produced on a chest phantom.Methods: The characteristics of the film used in the film dosimeter were ev...
Gespeichert in:
| Veröffentlicht in: | Medical physics (Lancaster) 2011-05, Vol.38 (5), p.2467-2478 |
|---|---|
| Hauptverfasser: | , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 2478 |
|---|---|
| container_issue | 5 |
| container_start_page | 2467 |
| container_title | Medical physics (Lancaster) |
| container_volume | 38 |
| creator | Tominaga, Masahide Kawata, Yoshiki Niki, Noboru Moriyama, Noriyuki Yamada, Kenji Ueno, Junji Nishitani, Hiromu |
| description | Purpose: This paper uses film dosimetry to investigate the relationship between multiple scan parameters of multidetector CT with automatic exposure control (AEC) and the surface dose distribution produced on a chest phantom.Methods: The characteristics of the film used in the film dosimeter were evaluated with regard to linearity, relative film response, and directional dependence. Measurements with an ionization chamber dosimeter and a water phantom were used to evaluate the accuracy of the film dosimeter measurements and to validate the dose profile measurements while changing the tube current, detector dimensions and pitch. When using AEC, the surface dose distribution on the chest phantom was analyzed while changing the detector dimensions and pitch.Results: The linearity, relative film response, and directional dependence of the film were established. The measurement difference between the film dosimeter and ionization chamber dosimeter was within ±5% and the dose profile measurement results were validated. It was found that the surface dose distribution changed helically in the direction of the body axis depending on the scan parameters and the phantom.Conclusions: Using a film dosimeter, the relationship between various multidetector CT scan parameters and the surface dose distribution on a chest phantom was investigated and clarified. |
| doi_str_mv | 10.1118/1.3570769 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_pubme</sourceid><recordid>TN_cdi_pubmed_primary_21776782</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>878820787</sourcerecordid><originalsourceid>FETCH-LOGICAL-p3189-dc1b56207adcbba840b19a5cb5132237b6c6a6ae11ed4d1a1e88ee52e1faf3aa3</originalsourceid><addsrcrecordid>eNp9kM1r3DAQxUVpaDabHvoPFN0KAScaybbkY1jyBbskh-RsxtK4UfFXLDlh__t62W0IBHqZd3i_NzM8xn6AOAcAcwHnKtNC58UXtpCpVkkqRfGVLYQo0kSmIjtmJyH8EULkKhPf2LEErXNt5IK5DWGYRmqpi4H3NW-nJnpHkWzsR7565LNboyXu-jAPH-Loqyn6vgt8Cr77zZHXvml3vm_n3Mixc9w-U4h8eMYu9u0pO6qxCfT9oEv2dH31uLpN1vc3d6vLdTIoMEXiLFRZLoVGZ6sKTSoqKDCzVQZKSqWr3OaYIwGQSx0gkDFEmSSosVaIasl-7fcOY_8yzQ-UrQ-WmgY76qdQGm3MvN7omfx5IKeqJVcOo29x3Jb_ipmBZA-8-Ya27z6Ictd4CeWh8XLzsJOZP9vzwfqIu3reM6_9-IEfXP0_-NMB9RekJ5AP</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>878820787</pqid></control><display><type>article</type><title>Measurements of multidetector CT surface dose distributions using a film dosimeter and chest phantom</title><source>MEDLINE</source><source>Wiley Journals</source><source>Alma/SFX Local Collection</source><creator>Tominaga, Masahide ; Kawata, Yoshiki ; Niki, Noboru ; Moriyama, Noriyuki ; Yamada, Kenji ; Ueno, Junji ; Nishitani, Hiromu</creator><creatorcontrib>Tominaga, Masahide ; Kawata, Yoshiki ; Niki, Noboru ; Moriyama, Noriyuki ; Yamada, Kenji ; Ueno, Junji ; Nishitani, Hiromu</creatorcontrib><description>Purpose: This paper uses film dosimetry to investigate the relationship between multiple scan parameters of multidetector CT with automatic exposure control (AEC) and the surface dose distribution produced on a chest phantom.Methods: The characteristics of the film used in the film dosimeter were evaluated with regard to linearity, relative film response, and directional dependence. Measurements with an ionization chamber dosimeter and a water phantom were used to evaluate the accuracy of the film dosimeter measurements and to validate the dose profile measurements while changing the tube current, detector dimensions and pitch. When using AEC, the surface dose distribution on the chest phantom was analyzed while changing the detector dimensions and pitch.Results: The linearity, relative film response, and directional dependence of the film were established. The measurement difference between the film dosimeter and ionization chamber dosimeter was within ±5% and the dose profile measurement results were validated. It was found that the surface dose distribution changed helically in the direction of the body axis depending on the scan parameters and the phantom.Conclusions: Using a film dosimeter, the relationship between various multidetector CT scan parameters and the surface dose distribution on a chest phantom was investigated and clarified.</description><identifier>ISSN: 0094-2405</identifier><identifier>EISSN: 2473-4209</identifier><identifier>DOI: 10.1118/1.3570769</identifier><identifier>PMID: 21776782</identifier><identifier>CODEN: MPHYA6</identifier><language>eng</language><publisher>United States: American Association of Physicists in Medicine</publisher><subject>Algorithms ; Computed tomography ; computerised tomography ; dosimeters ; dosimetry ; Dosimetry/exposure assessment ; Electric measurements ; film dosimeter ; Film Dosimetry ; Humans ; Ionization chambers ; multidetector CT ; phantoms ; Phantoms, Imaging ; Position sensitive detectors ; Radiation Dosage ; radiation dosimetry ; Radiography, Thoracic - instrumentation ; Radiography, Thoracic - methods ; Rotation measurement ; Sound discrimination ; surface dose ; Surface ionization ; Surface measurements ; Tomography, X-Ray Computed - instrumentation ; Tomography, X-Ray Computed - methods ; X‐ray imaging ; X‐ray instruments</subject><ispartof>Medical physics (Lancaster), 2011-05, Vol.38 (5), p.2467-2478</ispartof><rights>American Association of Physicists in Medicine</rights><rights>2011 American Association of Physicists in Medicine</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1118%2F1.3570769$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1118%2F1.3570769$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21776782$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Tominaga, Masahide</creatorcontrib><creatorcontrib>Kawata, Yoshiki</creatorcontrib><creatorcontrib>Niki, Noboru</creatorcontrib><creatorcontrib>Moriyama, Noriyuki</creatorcontrib><creatorcontrib>Yamada, Kenji</creatorcontrib><creatorcontrib>Ueno, Junji</creatorcontrib><creatorcontrib>Nishitani, Hiromu</creatorcontrib><title>Measurements of multidetector CT surface dose distributions using a film dosimeter and chest phantom</title><title>Medical physics (Lancaster)</title><addtitle>Med Phys</addtitle><description>Purpose: This paper uses film dosimetry to investigate the relationship between multiple scan parameters of multidetector CT with automatic exposure control (AEC) and the surface dose distribution produced on a chest phantom.Methods: The characteristics of the film used in the film dosimeter were evaluated with regard to linearity, relative film response, and directional dependence. Measurements with an ionization chamber dosimeter and a water phantom were used to evaluate the accuracy of the film dosimeter measurements and to validate the dose profile measurements while changing the tube current, detector dimensions and pitch. When using AEC, the surface dose distribution on the chest phantom was analyzed while changing the detector dimensions and pitch.Results: The linearity, relative film response, and directional dependence of the film were established. The measurement difference between the film dosimeter and ionization chamber dosimeter was within ±5% and the dose profile measurement results were validated. It was found that the surface dose distribution changed helically in the direction of the body axis depending on the scan parameters and the phantom.Conclusions: Using a film dosimeter, the relationship between various multidetector CT scan parameters and the surface dose distribution on a chest phantom was investigated and clarified.</description><subject>Algorithms</subject><subject>Computed tomography</subject><subject>computerised tomography</subject><subject>dosimeters</subject><subject>dosimetry</subject><subject>Dosimetry/exposure assessment</subject><subject>Electric measurements</subject><subject>film dosimeter</subject><subject>Film Dosimetry</subject><subject>Humans</subject><subject>Ionization chambers</subject><subject>multidetector CT</subject><subject>phantoms</subject><subject>Phantoms, Imaging</subject><subject>Position sensitive detectors</subject><subject>Radiation Dosage</subject><subject>radiation dosimetry</subject><subject>Radiography, Thoracic - instrumentation</subject><subject>Radiography, Thoracic - methods</subject><subject>Rotation measurement</subject><subject>Sound discrimination</subject><subject>surface dose</subject><subject>Surface ionization</subject><subject>Surface measurements</subject><subject>Tomography, X-Ray Computed - instrumentation</subject><subject>Tomography, X-Ray Computed - methods</subject><subject>X‐ray imaging</subject><subject>X‐ray instruments</subject><issn>0094-2405</issn><issn>2473-4209</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kM1r3DAQxUVpaDabHvoPFN0KAScaybbkY1jyBbskh-RsxtK4UfFXLDlh__t62W0IBHqZd3i_NzM8xn6AOAcAcwHnKtNC58UXtpCpVkkqRfGVLYQo0kSmIjtmJyH8EULkKhPf2LEErXNt5IK5DWGYRmqpi4H3NW-nJnpHkWzsR7565LNboyXu-jAPH-Loqyn6vgt8Cr77zZHXvml3vm_n3Mixc9w-U4h8eMYu9u0pO6qxCfT9oEv2dH31uLpN1vc3d6vLdTIoMEXiLFRZLoVGZ6sKTSoqKDCzVQZKSqWr3OaYIwGQSx0gkDFEmSSosVaIasl-7fcOY_8yzQ-UrQ-WmgY76qdQGm3MvN7omfx5IKeqJVcOo29x3Jb_ipmBZA-8-Ya27z6Ictd4CeWh8XLzsJOZP9vzwfqIu3reM6_9-IEfXP0_-NMB9RekJ5AP</recordid><startdate>201105</startdate><enddate>201105</enddate><creator>Tominaga, Masahide</creator><creator>Kawata, Yoshiki</creator><creator>Niki, Noboru</creator><creator>Moriyama, Noriyuki</creator><creator>Yamada, Kenji</creator><creator>Ueno, Junji</creator><creator>Nishitani, Hiromu</creator><general>American Association of Physicists in Medicine</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>7X8</scope></search><sort><creationdate>201105</creationdate><title>Measurements of multidetector CT surface dose distributions using a film dosimeter and chest phantom</title><author>Tominaga, Masahide ; Kawata, Yoshiki ; Niki, Noboru ; Moriyama, Noriyuki ; Yamada, Kenji ; Ueno, Junji ; Nishitani, Hiromu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p3189-dc1b56207adcbba840b19a5cb5132237b6c6a6ae11ed4d1a1e88ee52e1faf3aa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Algorithms</topic><topic>Computed tomography</topic><topic>computerised tomography</topic><topic>dosimeters</topic><topic>dosimetry</topic><topic>Dosimetry/exposure assessment</topic><topic>Electric measurements</topic><topic>film dosimeter</topic><topic>Film Dosimetry</topic><topic>Humans</topic><topic>Ionization chambers</topic><topic>multidetector CT</topic><topic>phantoms</topic><topic>Phantoms, Imaging</topic><topic>Position sensitive detectors</topic><topic>Radiation Dosage</topic><topic>radiation dosimetry</topic><topic>Radiography, Thoracic - instrumentation</topic><topic>Radiography, Thoracic - methods</topic><topic>Rotation measurement</topic><topic>Sound discrimination</topic><topic>surface dose</topic><topic>Surface ionization</topic><topic>Surface measurements</topic><topic>Tomography, X-Ray Computed - instrumentation</topic><topic>Tomography, X-Ray Computed - methods</topic><topic>X‐ray imaging</topic><topic>X‐ray instruments</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tominaga, Masahide</creatorcontrib><creatorcontrib>Kawata, Yoshiki</creatorcontrib><creatorcontrib>Niki, Noboru</creatorcontrib><creatorcontrib>Moriyama, Noriyuki</creatorcontrib><creatorcontrib>Yamada, Kenji</creatorcontrib><creatorcontrib>Ueno, Junji</creatorcontrib><creatorcontrib>Nishitani, Hiromu</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>MEDLINE - Academic</collection><jtitle>Medical physics (Lancaster)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tominaga, Masahide</au><au>Kawata, Yoshiki</au><au>Niki, Noboru</au><au>Moriyama, Noriyuki</au><au>Yamada, Kenji</au><au>Ueno, Junji</au><au>Nishitani, Hiromu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measurements of multidetector CT surface dose distributions using a film dosimeter and chest phantom</atitle><jtitle>Medical physics (Lancaster)</jtitle><addtitle>Med Phys</addtitle><date>2011-05</date><risdate>2011</risdate><volume>38</volume><issue>5</issue><spage>2467</spage><epage>2478</epage><pages>2467-2478</pages><issn>0094-2405</issn><eissn>2473-4209</eissn><coden>MPHYA6</coden><abstract>Purpose: This paper uses film dosimetry to investigate the relationship between multiple scan parameters of multidetector CT with automatic exposure control (AEC) and the surface dose distribution produced on a chest phantom.Methods: The characteristics of the film used in the film dosimeter were evaluated with regard to linearity, relative film response, and directional dependence. Measurements with an ionization chamber dosimeter and a water phantom were used to evaluate the accuracy of the film dosimeter measurements and to validate the dose profile measurements while changing the tube current, detector dimensions and pitch. When using AEC, the surface dose distribution on the chest phantom was analyzed while changing the detector dimensions and pitch.Results: The linearity, relative film response, and directional dependence of the film were established. The measurement difference between the film dosimeter and ionization chamber dosimeter was within ±5% and the dose profile measurement results were validated. It was found that the surface dose distribution changed helically in the direction of the body axis depending on the scan parameters and the phantom.Conclusions: Using a film dosimeter, the relationship between various multidetector CT scan parameters and the surface dose distribution on a chest phantom was investigated and clarified.</abstract><cop>United States</cop><pub>American Association of Physicists in Medicine</pub><pmid>21776782</pmid><doi>10.1118/1.3570769</doi><tpages>12</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0094-2405 |
| ispartof | Medical physics (Lancaster), 2011-05, Vol.38 (5), p.2467-2478 |
| issn | 0094-2405 2473-4209 |
| language | eng |
| recordid | cdi_pubmed_primary_21776782 |
| source | MEDLINE; Wiley Journals; Alma/SFX Local Collection |
| subjects | Algorithms Computed tomography computerised tomography dosimeters dosimetry Dosimetry/exposure assessment Electric measurements film dosimeter Film Dosimetry Humans Ionization chambers multidetector CT phantoms Phantoms, Imaging Position sensitive detectors Radiation Dosage radiation dosimetry Radiography, Thoracic - instrumentation Radiography, Thoracic - methods Rotation measurement Sound discrimination surface dose Surface ionization Surface measurements Tomography, X-Ray Computed - instrumentation Tomography, X-Ray Computed - methods X‐ray imaging X‐ray instruments |
| title | Measurements of multidetector CT surface dose distributions using a film dosimeter and chest phantom |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-01T13%3A18%3A34IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_pubme&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Measurements%20of%20multidetector%20CT%20surface%20dose%20distributions%20using%20a%20film%20dosimeter%20and%20chest%20phantom&rft.jtitle=Medical%20physics%20(Lancaster)&rft.au=Tominaga,%20Masahide&rft.date=2011-05&rft.volume=38&rft.issue=5&rft.spage=2467&rft.epage=2478&rft.pages=2467-2478&rft.issn=0094-2405&rft.eissn=2473-4209&rft.coden=MPHYA6&rft_id=info:doi/10.1118/1.3570769&rft_dat=%3Cproquest_pubme%3E878820787%3C/proquest_pubme%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=878820787&rft_id=info:pmid/21776782&rfr_iscdi=true |