IDEAS home Printed from https://ideas.repec.org/a/igg/jehmc0/v12y2021i1p16-33.html
   My bibliography  Save this article

Data Mining of MR Technical Parameters: A Case Study for SAR in a Large-Scale MR Repository

Author

Listed:
  • Adriana Murraças

    (University of Aveiro, Portugal)

  • Paula Maria Vaz Martins

    (School of Health Sciences, University of Aveiro, Portugal)

  • Carlos Daniel Cipriani Ferreira

    (Perspectum Diagnostics, Ltd, Oxford, UK & Institute of Nuclear Sciences Applied to Health (ICNAS), University of Coimbra, Portugal)

  • Tiago Marques Godinho

    (University of Aveiro, Portugal)

  • Augusto Marques Ferreira da Silva

    (University of Aveiro, Portugal)

Abstract

Exposure to radiofrequency (RF) energy during a magnetic resonance imaging exam is a safety concern related to biological thermal effects. Estimation of the specific absorption rate (SAR) is done by manufacturer scanner integrated tools to monitor RF energy. This work presents an exploratory approach of DICOM metadata focused in whole-body SAR values, patient dependent parameters, and pulse sequences. Previously acquired abdominopelvic and head studies were retrieved from a 3 Tesla scanner. Dicoogle tool was used for metadata indexing, mining, and extraction. Specifically weighted pulse sequences were related with weight, BMI, and gender through boxplot diagrams and effect size analysis. A decrease of SAR values with increasing body weight and BMI categories is observable for abdominopelvic studies. Head studies showed different trends regarding distinct pulse sequences; in addition, underage patients register higher SAR values compared to adults. Male individuals register marginally higher SAR values. Metadata recording practices and standardization need to be improved.

Suggested Citation

  • Adriana Murraças & Paula Maria Vaz Martins & Carlos Daniel Cipriani Ferreira & Tiago Marques Godinho & Augusto Marques Ferreira da Silva, 2021. "Data Mining of MR Technical Parameters: A Case Study for SAR in a Large-Scale MR Repository," International Journal of E-Health and Medical Communications (IJEHMC), IGI Global, vol. 12(1), pages 16-33, January.
    • Handle: RePEc:igg:jehmc0:v:12:y:2021:i:1:p:16-33
    as

    Download full text from publisher

    File URL: http://services.igi-global.com/resolvedoi/resolve.aspx?doi=10.4018/IJEHMC.2021010102
    Download Restriction: no
    ---><---

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:igg:jehmc0:v:12:y:2021:i:1:p:16-33. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Journal Editor (email available below). General contact details of provider: https://www.igi-global.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.