• Login
    View Item 
    •   Home
    • UA Faculty Research
    • UA Faculty Publications
    • View Item
    •   Home
    • UA Faculty Research
    • UA Faculty Publications
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of UA Campus RepositoryCommunitiesTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournalThis CollectionTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournal

    My Account

    LoginRegister

    About

    AboutUA Faculty PublicationsUA DissertationsUA Master's ThesesUA Honors ThesesUA PressUA YearbooksUA CatalogsUA Libraries

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Dedicated cone-beam breast CT using laterally-shifted detector geometry: Quantitative analysis of feasibility for clinical translation

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    LaterallyShiftedDetector_CBBCT ...
    Size:
    5.382Mb
    Format:
    PDF
    Description:
    Final Accepted Manuscript
    Download
    Author
    Vedantham, Srinivasan
    Tseng, Hsin-Wu
    Konate, Souleymane
    Shi, Linxi
    Karellas, Andrew
    Affiliation
    Univ Arizona, Med Imaging & Biomed Engn
    Issue Date
    2020
    Keywords
    breast
    X-Ray computed tomography (CT)
    breast CT
    cone-beam CT
    Mammography
    
    Metadata
    Show full item record
    Publisher
    IOS PRESS
    Citation
    Vedantham, S., Tseng, H. W., Konate, S., Shi, L., & Karellas, A. (2020). Dedicated cone-beam breast CT using laterally-shifted detector geometry: Quantitative analysis of feasibility for clinical translation. Journal of X-ray science and technology, 28(3), 405–426.
    Journal
    JOURNAL OF X-RAY SCIENCE AND TECHNOLOGY
    Rights
    Copyright ©2020 IOS Press. All rights reserved.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    BACKGROUND: High-resolution, low-noise detectors with minimal dead-space at chest-wall could improve posterior coverage and microcalcification visibility in the dedicated cone-beam breast CT (CBBCT). However, the smaller field-of-view necessitates laterally-shifted detector geometry to enable optimizing the air-gap for x-ray scatter rejection. OBJECTIVE: To evaluate laterally-shifted detector geometry for CBBCT with clinical projection datasets that provide for anatomical structures and lesions. METHODS: CBBCT projection datasets (n = 17 breasts) acquired with a 40×30 cm detector (1024×768-pixels, 0.388-mm pixels) were truncated along the fan-angle to emulate 20.3×30 cm, 22.2×30 cm and 24.1×30 cm detector formats and correspond to 20, 120, 220 pixels overlap in conjugate views, respectively. Feldkamp-Davis-Kress (FDK) algorithm with 3 different weighting schemes were used for reconstruction. Visual analysis for artifacts and quantitative analysis of root-mean-squared-error (RMSE), absolute difference between truncated and 40×30 cm reconstructions (Diff), and its power spectrum (PSDiff) were performed. RESULTS:Artifacts were observed for 20.3×30 cm, but not for other formats. The 24.1×30 cm provided the best quantitative results with RMSE and Diff (both in units of μ, cm-1) of 4.39×10-3±1.98×10-3 and 4.95×10-4±1.34×10-4, respectively. The PSDiff (>0.3 cycles/mm) was in the order of 10-14μ2mm3 and was spatial-frequency independent. CONCLUSIONS: Laterally-shifted detector CBBCT with at least 220 pixels overlap in conjugate views (24.1×30 cm detector format) provides quantitatively accurate and artifact-free image reconstruction.
    ISSN
    0895-3996
    EISSN
    1095-9114
    PubMed ID
    32333575
    DOI
    10.3233/XST-200651
    Version
    Final accepted manuscript
    ae974a485f413a2113503eed53cd6c53
    10.3233/XST-200651
    Scopus Count
    Collections
    UA Faculty Publications

    entitlement

    Related articles

    • Cone-beam breast computed tomography with a displaced flat panel detector array.
    • Authors: Mettivier G, Russo P, Lanconelli N, Meo SL
    • Issue date: 2012 May
    • Simulated scatter performance of an inverse-geometry dedicated breast CT system.
    • Authors: Bhagtani R, Schmidt TG
    • Issue date: 2009 Mar
    • Sparse-view, short-scan, dedicated cone-beam breast computed tomography: image quality assessment.
    • Authors: Hsin Wu T, Andrew K, Srinivasan V
    • Issue date: 2020 Sep 28
    • Stationary computed tomography with source and detector in linear symmetric geometry: Direct filtered backprojection reconstruction.
    • Authors: Zhang T, Xing Y, Zhang L, Jin X, Gao H, Chen Z
    • Issue date: 2020 Jun
    • High resolution dual detector volume-of-interest cone beam breast CT--Demonstration with a bench top system.
    • Authors: Shen Y, Yi Y, Zhong Y, Lai CJ, Liu X, You Z, Ge S, Wang T, Shaw CC
    • Issue date: 2011 Dec
    The University of Arizona Libraries | 1510 E. University Blvd. | Tucson, AZ 85721-0055
    Tel 520-621-6442 | repository@u.library.arizona.edu
    DSpace software copyright © 2002-2017  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    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.