Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Optimal technique factors for magnification mammography

W Huda1, B G Steinbach, W R Geiser

  • 1Department of Radiology, University of Florida, College of Medicine, Gainesville 32610-0374, USA. hudaw@xray.ufl.edu

Investigative Radiology
|July 1, 1997
PubMed
Summary

Increasing kilovoltage peak (kVp) in magnification mammography reduces exposure time. Performing magnification mammography at 32 kVp significantly decreases exposure times while maintaining visibility of microcalcifications and fibers comparable to 28 kVp.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Chlorhexidine anaphylaxis: implications for post-resuscitation management.

Anaesthesia·2016
Same author

Review of portable CT with assessment of a dedicated head CT scanner.

AJNR. American journal of neuroradiology·2009
Same author

Effect of dose metrics and radiation risk models when optimizing CT x-ray tube voltage.

Physics in medicine and biology·2008
Same author

Comments on 'Increasing film-focus distance (FFD) reduces radiation dose for X-ray examinations' by P.C. Brennan, S. McDonnell and D. O'Leary.

Radiation protection dosimetry·2005
Same author

Assessment of the problem: pediatric doses in screen-film and digital radiography.

Pediatric radiology·2004
Same author

Acute transient sialodenopathy after the use of PAXpress.

Anesthesia and analgesia·2002

Area of Science:

  • Radiological Imaging
  • Medical Physics

Background:

  • Magnification mammography with small focal spots and low x-ray tube currents can lead to prolonged exposure times, causing motion blur.
  • Investigating the trade-off between reduced exposure time and image quality is crucial for optimizing mammographic techniques.

Purpose of the Study:

  • To evaluate the impact of increasing x-ray tube kilovoltage peak (kVp) on exposure time in magnification mammography.
  • To assess the effect of varying kVp on the perceived visibility of low-contrast objects, specifically microcalcifications and fibers, in phantom images.

Main Methods:

  • Exposure times were measured using an RMI 156 phantom under automatic exposure control across a kVp range of 28 to 34.
  • Magnification images were acquired at different kVp settings.
  • Radiology residents qualitatively assessed the visibility of borderline microcalcification specks and fibers on a 5-point scale.

Related Experiment Videos

Main Results:

  • Image density remained consistent between 28 and 34 kVp.
  • Increasing kVp from 28 to 34 kVp reduced exposure time from 1.27 to 0.66 seconds.
  • Visibility of microcalcifications and fibers was not significantly degraded at 30 or 32 kVp, but deteriorated significantly at 34 kVp.

Conclusions:

  • Performing magnification mammography at 32 kVp offers a significant reduction in exposure time.
  • Image quality, in terms of microcalcification and fiber visibility, is preserved at 32 kVp compared to 28 kVp.
  • Higher kVp settings (e.g., 34 kVp) may compromise diagnostic accuracy due to decreased visibility of subtle findings.