Collimator Angulation Error and Its Effect on SPECT

Collimator Angulation Error and Its Effect on SPECT

Angulation errors in collimator septa degrade tomographic resolution in SPECT due to mispositioning of events in the projection data. These errors should be small compared to other contributions to SPECT system resolution, such as intrinsic camera and collimator resolution, gantry alignment, and alg...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:The Journal of nuclear medicine (1978) 1990-05, Vol.31 (5), p.655-659
Hauptverfasser: Malmin, Ronald E, Stanley, Peggy C, Guth, William R
Format: Artikel
Sprache:eng
Schlagworte:
Biological and medical sciences
Investigative techniques, diagnostic techniques (general aspects)
Medical sciences
Tomography, Emission-Computed, Single-Photon - instrumentation
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 659
container_issue 5
container_start_page 655
container_title The Journal of nuclear medicine (1978)
container_volume 31
creator Malmin, Ronald E
Stanley, Peggy C
Guth, William R
description Angulation errors in collimator septa degrade tomographic resolution in SPECT due to mispositioning of events in the projection data. These errors should be small compared to other contributions to SPECT system resolution, such as intrinsic camera and collimator resolution, gantry alignment, and algorithmic smoothing. We describe a radioisotope technique to measure septal angulation errors over the entire collimator surface to +/- 0.05 degrees (RMS). A simple computer simulation is used to estimate a tolerance level, based on a 1% degradation in reconstructed resolution, of 0.25 degrees (RMS) and 0.6 degrees (max.) for collimator septal deviations. We also point out two methods for collimator linearity correction during SPECT reconstruction.
format Article
fullrecord <record><control><sourceid>proquest_pubme</sourceid><recordid>TN_cdi_proquest_miscellaneous_79777985</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>79777985</sourcerecordid><originalsourceid>FETCH-LOGICAL-h266t-5c5ebb03205920988de4ba82dbb8b18dce30fd5aaa075495cc6563c8f3da37293</originalsourceid><addsrcrecordid>eNpNj99LwzAcxIMoc07_BKEP4lshafpN0sdRqhsMFJzPIb-6daTtTFrE_96KRXw6uPtwx12gJQEKKTDGL9ESE0ZSAAzX6CbGE8aYCSEWaJHRnBSYLBEte--bVg19SNbdYfRqaPouqUKYDNXZZDvEpKprZ4Zk8t9eq3J_i65q5aO7m3WF3p-qfblJdy_P23K9S48ZY0MKBpzWmGYYigwXQliXayUyq7XQRFjjKK4tKKUwh7wAYxgwakRNraI8K-gKPf72nkP_Mbo4yLaJxnmvOtePUfKCc14ImMD7GRx166w8h-lR-JLzyyl_mHMVjfJ1UJ1p4h-W0xwo_bd3bA7HzyY42Y3GOxV-Ok9dS4kEyQDoN8MjZ04</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>79777985</pqid></control><display><type>article</type><title>Collimator Angulation Error and Its Effect on SPECT</title><source>MEDLINE</source><source>EZB-FREE-00999 freely available EZB journals</source><creator>Malmin, Ronald E ; Stanley, Peggy C ; Guth, William R</creator><creatorcontrib>Malmin, Ronald E ; Stanley, Peggy C ; Guth, William R</creatorcontrib><description>Angulation errors in collimator septa degrade tomographic resolution in SPECT due to mispositioning of events in the projection data. These errors should be small compared to other contributions to SPECT system resolution, such as intrinsic camera and collimator resolution, gantry alignment, and algorithmic smoothing. We describe a radioisotope technique to measure septal angulation errors over the entire collimator surface to +/- 0.05 degrees (RMS). A simple computer simulation is used to estimate a tolerance level, based on a 1% degradation in reconstructed resolution, of 0.25 degrees (RMS) and 0.6 degrees (max.) for collimator septal deviations. We also point out two methods for collimator linearity correction during SPECT reconstruction.</description><identifier>ISSN: 0161-5505</identifier><identifier>EISSN: 1535-5667</identifier><identifier>PMID: 2341901</identifier><language>eng</language><publisher>Reston, VA: Soc Nuclear Med</publisher><subject>Biological and medical sciences ; Investigative techniques, diagnostic techniques (general aspects) ; Medical sciences ; Tomography, Emission-Computed, Single-Photon - instrumentation</subject><ispartof>The Journal of nuclear medicine (1978), 1990-05, Vol.31 (5), p.655-659</ispartof><rights>1993 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=4345339$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/2341901$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Malmin, Ronald E</creatorcontrib><creatorcontrib>Stanley, Peggy C</creatorcontrib><creatorcontrib>Guth, William R</creatorcontrib><title>Collimator Angulation Error and Its Effect on SPECT</title><title>The Journal of nuclear medicine (1978)</title><addtitle>J Nucl Med</addtitle><description>Angulation errors in collimator septa degrade tomographic resolution in SPECT due to mispositioning of events in the projection data. These errors should be small compared to other contributions to SPECT system resolution, such as intrinsic camera and collimator resolution, gantry alignment, and algorithmic smoothing. We describe a radioisotope technique to measure septal angulation errors over the entire collimator surface to +/- 0.05 degrees (RMS). A simple computer simulation is used to estimate a tolerance level, based on a 1% degradation in reconstructed resolution, of 0.25 degrees (RMS) and 0.6 degrees (max.) for collimator septal deviations. We also point out two methods for collimator linearity correction during SPECT reconstruction.</description><subject>Biological and medical sciences</subject><subject>Investigative techniques, diagnostic techniques (general aspects)</subject><subject>Medical sciences</subject><subject>Tomography, Emission-Computed, Single-Photon - instrumentation</subject><issn>0161-5505</issn><issn>1535-5667</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1990</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpNj99LwzAcxIMoc07_BKEP4lshafpN0sdRqhsMFJzPIb-6daTtTFrE_96KRXw6uPtwx12gJQEKKTDGL9ESE0ZSAAzX6CbGE8aYCSEWaJHRnBSYLBEte--bVg19SNbdYfRqaPouqUKYDNXZZDvEpKprZ4Zk8t9eq3J_i65q5aO7m3WF3p-qfblJdy_P23K9S48ZY0MKBpzWmGYYigwXQliXayUyq7XQRFjjKK4tKKUwh7wAYxgwakRNraI8K-gKPf72nkP_Mbo4yLaJxnmvOtePUfKCc14ImMD7GRx166w8h-lR-JLzyyl_mHMVjfJ1UJ1p4h-W0xwo_bd3bA7HzyY42Y3GOxV-Ok9dS4kEyQDoN8MjZ04</recordid><startdate>19900501</startdate><enddate>19900501</enddate><creator>Malmin, Ronald E</creator><creator>Stanley, Peggy C</creator><creator>Guth, William R</creator><general>Soc Nuclear Med</general><general>Society of Nuclear Medicine</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>7X8</scope></search><sort><creationdate>19900501</creationdate><title>Collimator Angulation Error and Its Effect on SPECT</title><author>Malmin, Ronald E ; Stanley, Peggy C ; Guth, William R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-h266t-5c5ebb03205920988de4ba82dbb8b18dce30fd5aaa075495cc6563c8f3da37293</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1990</creationdate><topic>Biological and medical sciences</topic><topic>Investigative techniques, diagnostic techniques (general aspects)</topic><topic>Medical sciences</topic><topic>Tomography, Emission-Computed, Single-Photon - instrumentation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Malmin, Ronald E</creatorcontrib><creatorcontrib>Stanley, Peggy C</creatorcontrib><creatorcontrib>Guth, William R</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>MEDLINE - Academic</collection><jtitle>The Journal of nuclear medicine (1978)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Malmin, Ronald E</au><au>Stanley, Peggy C</au><au>Guth, William R</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Collimator Angulation Error and Its Effect on SPECT</atitle><jtitle>The Journal of nuclear medicine (1978)</jtitle><addtitle>J Nucl Med</addtitle><date>1990-05-01</date><risdate>1990</risdate><volume>31</volume><issue>5</issue><spage>655</spage><epage>659</epage><pages>655-659</pages><issn>0161-5505</issn><eissn>1535-5667</eissn><abstract>Angulation errors in collimator septa degrade tomographic resolution in SPECT due to mispositioning of events in the projection data. These errors should be small compared to other contributions to SPECT system resolution, such as intrinsic camera and collimator resolution, gantry alignment, and algorithmic smoothing. We describe a radioisotope technique to measure septal angulation errors over the entire collimator surface to +/- 0.05 degrees (RMS). A simple computer simulation is used to estimate a tolerance level, based on a 1% degradation in reconstructed resolution, of 0.25 degrees (RMS) and 0.6 degrees (max.) for collimator septal deviations. We also point out two methods for collimator linearity correction during SPECT reconstruction.</abstract><cop>Reston, VA</cop><pub>Soc Nuclear Med</pub><pmid>2341901</pmid><tpages>5</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0161-5505
ispartof The Journal of nuclear medicine (1978), 1990-05, Vol.31 (5), p.655-659
issn 0161-5505
1535-5667
language eng
recordid cdi_proquest_miscellaneous_79777985
source MEDLINE; EZB-FREE-00999 freely available EZB journals
subjects Biological and medical sciences
Investigative techniques, diagnostic techniques (general aspects)
Medical sciences
Tomography, Emission-Computed, Single-Photon - instrumentation
title Collimator Angulation Error and Its Effect on SPECT
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-25T04%3A10%3A27IST&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=Collimator%20Angulation%20Error%20and%20Its%20Effect%20on%20SPECT&rft.jtitle=The%20Journal%20of%20nuclear%20medicine%20(1978)&rft.au=Malmin,%20Ronald%20E&rft.date=1990-05-01&rft.volume=31&rft.issue=5&rft.spage=655&rft.epage=659&rft.pages=655-659&rft.issn=0161-5505&rft.eissn=1535-5667&rft_id=info:doi/&rft_dat=%3Cproquest_pubme%3E79777985%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=79777985&rft_id=info:pmid/2341901&rfr_iscdi=true