Skip to main content

Main menu

  • Home
  • Content
    • Current
      • JNMT Supplement
    • Ahead of print
    • Past Issues
    • SNMMI Annual Meeting Abstracts
  • Subscriptions
    • Subscribers
    • Rates
    • Journal Claims
    • Institutional and Non-member
  • Authors
    • Submit to JNMT
    • Information for Authors
    • Assignment of Copyright
  • Info
    • Permissions
    • Continuing Education
    • Advertisers
    • Corporate & Special Sales
  • About
    • About Us
    • Editorial Board
    • Editorial Contact
  • More
    • Alerts
    • Feedback
    • Help
    • SNMMI Journals
  • SNMMI
    • JNMT
    • JNM
    • SNMMI Journals
    • SNMMI

User menu

  • Subscribe
  • My alerts
  • Log in
  • My Cart

Search

  • Advanced search
Journal of Nuclear Medicine Technology
  • SNMMI
    • JNMT
    • JNM
    • SNMMI Journals
    • SNMMI
  • Subscribe
  • My alerts
  • Log in
  • My Cart
Journal of Nuclear Medicine Technology

Advanced Search

  • Home
  • Content
    • Current
    • Ahead of print
    • Past Issues
    • SNMMI Annual Meeting Abstracts
  • Subscriptions
    • Subscribers
    • Rates
    • Journal Claims
    • Institutional and Non-member
  • Authors
    • Submit to JNMT
    • Information for Authors
    • Assignment of Copyright
  • Info
    • Permissions
    • Continuing Education
    • Advertisers
    • Corporate & Special Sales
  • About
    • About Us
    • Editorial Board
    • Editorial Contact
  • More
    • Alerts
    • Feedback
    • Help
    • SNMMI Journals
  • Follow SNMMI on Twitter
  • Visit SNMMI on Facebook
Research ArticleRadiation Safety

Effective Dose to Patients from SPECT and CT During Myocardial Perfusion Imaging

Ajit Brindhaban
Journal of Nuclear Medicine Technology June 2020, 48 (2) 143-147; DOI: https://doi.org/10.2967/jnmt.119.233874
Ajit Brindhaban
Department of Radiologic Sciences, Kuwait University, Kuwait
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • Article
  • Figures & Data
  • Info & Metrics
  • PDF
Loading

Abstract

Radiation dose to patients from imaging modalities is measured or calculated to assess the risk of the procedure and compare it with the benefits. Periodic review of image acquisition methods and the radiation dose used are an essential part of optimization in medical imaging. The aim of this study was to estimate patient radiation dose from SPECT myocardial perfusion imaging (MPI) using CT images for attenuation correction. Methods: SPECT and CT image acquisition parameters such as administered activity (AA), CT dose index (CTDIvol), and dose–length product for 415 patients who had undergone SPECT MPI using CT attenuation correction were reviewed. Effective dose (ED) for the SPECT part, the CT part and the total ED for the procedure were calculated. AA, CTDIvol, and ED values were compared between the 2 sexes and between body mass indexes (BMIs), imaging scanner models, and imaging centers. Statistical analyses were performed using t tests and 1-way ANOVA at P < 0.05 level of significance. Results: The range of AAs used for MPI was found to be 1,206–1,964 MBq per patient regardless of sex. The resulting mean ED of 8.8 mSv for men was significantly lower (P = 0.002) than the 10.4 mSv for women for SPECT. The range of CTDIvol was 1.12–3.97 mGy, resulting in an mean ED of 0.8 mSv for men, significantly lower (P < 0.001) than the 1.1 mSv for women for CT. The average combined EDs for male and female patients were 9.6 and 11.5 mSv, respectively. A positive correlation was found between AA and patient BMI (r = 0.48; P < 0.001), indicating patient size–related AAs. However, CTDIvol was found to depend only on the scanner model, regardless of BMI. Conclusion: The ED from SPECT/CT MPI studies was around 11 mSv, with 10 mSv being from the SPECT part of the study. The extra risk to the patients from CT imaging for attenuation correction is small compared with the benefit incurred from accurate diagnosis.

  • myocardial perfusion imaging
  • SPECT/CT
  • administered activity
  • CT dose index
  • effective dose

Footnotes

  • Published online Dec. 6, 2019.

View Full Text

This article requires a subscription to view the full text. If you have a subscription you may use the login form below to view the article. Access to this article can also be purchased.

SNMMI members

SNMMI Member Login

Login to the site using your SNMMI member credentials

Individuals

Non-Member Login

Login as an individual user

PreviousNext
Back to top

In this issue

Journal of Nuclear Medicine Technology: 48 (2)
Journal of Nuclear Medicine Technology
Vol. 48, Issue 2
June 1, 2020
  • Table of Contents
  • About the Cover
  • Index by author
Print
Download PDF
Article Alerts
Sign In to Email Alerts with your Email Address
Email Article

Thank you for your interest in spreading the word on Journal of Nuclear Medicine Technology.

NOTE: We only request your email address so that the person you are recommending the page to knows that you wanted them to see it, and that it is not junk mail. We do not capture any email address.

Enter multiple addresses on separate lines or separate them with commas.
Effective Dose to Patients from SPECT and CT During Myocardial Perfusion Imaging
(Your Name) has sent you a message from Journal of Nuclear Medicine Technology
(Your Name) thought you would like to see the Journal of Nuclear Medicine Technology web site.
Citation Tools
Effective Dose to Patients from SPECT and CT During Myocardial Perfusion Imaging
Ajit Brindhaban
Journal of Nuclear Medicine Technology Jun 2020, 48 (2) 143-147; DOI: 10.2967/jnmt.119.233874

Citation Manager Formats

  • BibTeX
  • Bookends
  • EasyBib
  • EndNote (tagged)
  • EndNote 8 (xml)
  • Medlars
  • Mendeley
  • Papers
  • RefWorks Tagged
  • Ref Manager
  • RIS
  • Zotero
Share
Effective Dose to Patients from SPECT and CT During Myocardial Perfusion Imaging
Ajit Brindhaban
Journal of Nuclear Medicine Technology Jun 2020, 48 (2) 143-147; DOI: 10.2967/jnmt.119.233874
del.icio.us logo Digg logo Reddit logo Twitter logo CiteULike logo Facebook logo Google logo Mendeley logo
  • Tweet Widget
  • Facebook Like
  • Google Plus One

Jump to section

  • Article
    • Abstract
    • MATERIALS AND METHODS
    • RESULTS
    • DISCUSSION
    • CONCLUSION
    • DISCLOSURE
    • Footnotes
    • REFERENCES
  • Figures & Data
  • Info & Metrics
  • PDF

Related Articles

  • No related articles found.
  • PubMed
  • Google Scholar

Cited By...

  • COVID-19 and Its Impact on Nuclear Medicine
  • Google Scholar

More in this TOC Section

  • Health and Lifestyle Factors of Australian Medical Radiation Workers: A Pilot Study Using Nuclear Medicine Technologists
  • Lower Radiation Dosing in Cardiac CT Angiography: The CONVERGE Registry
Show more Radiation Safety

Similar Articles

Keywords

  • Myocardial perfusion imaging
  • SPECT/CT
  • Administered activity
  • CT dose index
  • Effective dose
SNMMI

© 2021 Journal of Nuclear Medicine Technology

Powered by HighWire