• Login
    View Item 
    •   Home
    • UMass Chan Departments, Programs and Centers
    • Radiology
    • Radiology Publications
    • View Item
    •   Home
    • UMass Chan Departments, Programs and Centers
    • Radiology
    • Radiology Publications
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of eScholarship@UMassChanCommunitiesPublication DateAuthorsUMass Chan AffiliationsTitlesDocument TypesKeywordsThis CollectionPublication DateAuthorsUMass Chan AffiliationsTitlesDocument TypesKeywords

    My Account

    LoginRegister

    Help

    AboutSubmission GuidelinesData Deposit PolicySearchingAccessibilityTerms of UseWebsite Migration FAQ

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Investigation of the physical effects of respiratory motion compensation in a large population of patients undergoing Tc-99m cardiac perfusion SPECT/CT stress imaging

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Authors
    Pretorius, P. Hendrik
    Johnson, Karen L.
    Dahlberg, Seth T.
    King, Michael A.
    UMass Chan Affiliations
    Department of Radiology
    Document Type
    Journal Article
    Publication Date
    2017-04-21
    Keywords
    Cardiac perfusion
    Motion tracking
    Respiratory motion estimation and correction
    SPECT/CT
    Cardiology
    Radiology
    
    Metadata
    Show full item record
    Link to Full Text
    https://doi.org/10.1007/s12350-017-0890-3
    Abstract
    BACKGROUND: Respiratory motion can deteriorate image fidelity in cardiac perfusion SPECT. We determined the extent of respiratory motion, assessed its impact on image fidelity, and investigated the existence of gender differences, thereby examining the influence of respiratory motion in a large population of patients. METHODS: One thousand one hundred and three SPECT/CT patients underwent visual tracking of markers on their anterior surface during stress acquisition to track respiratory motion. The extent of motion was estimated by registration. Visual indicators of changes in cardiac slices with motion correction, and the correlation between the extent of motion with changes in segmental-counts were assessed. RESULTS: Respiratory motion in the head-to-feet direction was the largest component of motion, varying between 1.1 and 37.4 mm, and was statistically significantly higher (p = 0.002) for males than females. In 33.0% of the patients, motion estimates were larger than 10 mm. Patients progressively show more distinct visual changes with an increase in the extent of motion. The increase in segmental-count differences in the anterior, antero-lateral, and inferior segments correlated with the extent of motion. CONCLUSIONS: Respiratory motion correction diminished the artefactual reduction in anterior and inferior wall counts associated with respiratory motion. The extent of improvement was strongly related to the magnitude of motion.
    Source
    J Nucl Cardiol. 2017 Apr 21. doi: 10.1007/s12350-017-0890-3. Link to article on publisher's site
    DOI
    10.1007/s12350-017-0890-3
    Permanent Link to this Item
    http://hdl.handle.net/20.500.14038/48216
    PubMed ID
    28432671
    Related Resources
    Link to Article in PubMed
    ae974a485f413a2113503eed53cd6c53
    10.1007/s12350-017-0890-3
    Scopus Count
    Collections
    Radiology Publications

    entitlement

    DSpace software (copyright © 2002 - 2023)  DuraSpace
    Lamar Soutter Library, UMass Chan Medical School | 55 Lake Avenue North | Worcester, MA 01655 USA
    Quick Guide | escholarship@umassmed.edu
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.