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 Concept Videos

X-ray Imaging01:24

X-ray Imaging

11.1K
German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
11.1K
Computed Tomography01:10

Computed Tomography

9.6K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
9.6K

You might also read

Related Articles

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

Sort by
Same author

Illustration of transfer learning from breast cancer detection to risk prediction: adaptation to local data and local objectives.

Journal of medical imaging (Bellingham, Wash.)·2026
Same author

flEXPOSE: a flexible exposure parameter optimisation engine for x-ray projection imaging.

Physics in medicine and biology·2026
Same author

Ultra-high resolution photon-counting CT of the lung after lung transplantation: should we go for optimal image quality or reduced radiation dose?

JHLT open·2026
Same author

Design, development and characterization of pregnant anthropomorphic phantoms for fetal dose measurements in proton therapy.

Physics in medicine and biology·2026
Same author

A personalized iodine delivery rate-based injection protocol in coronary angiography on photon-counting CT.

European radiology·2026
Same author

Photon-Counting CT in Musculoskeletal Radiology: Technical Principles, Clinical Applications, and Future Directions.

Journal of the Belgian Society of Radiology·2026

Related Experiment Video

Updated: Apr 7, 2026

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
08:30

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging

Published on: September 11, 2011

15.0K

Tailoring automatic exposure control toward constant detectability in digital mammography.

Elena Salvagnini1, Hilde Bosmans2, Lara Struelens3

  • 1Department of Imaging and Pathology, Medical Physics and Quality Assessment, KUL, Herestraat 49, Leuven B-3000, Belgium and SCK•CEN, Boeretang 200, Mol 2400, Belgium.

Medical Physics
|July 3, 2015
PubMed
Summary

A new automatic exposure control (AEC) mode for digital mammography improves object detectability at larger breast thicknesses. This modified AEC maintains constant detectability, ensuring better image quality without exceeding dose limits.

More Related Videos

Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification ADCI and Dose Estimation
10:33

Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification ADCI and Dose Estimation

Published on: September 4, 2017

16.8K
Clinical Imaging of Microwave Mammography
05:28

Clinical Imaging of Microwave Mammography

Published on: November 14, 2025

405

Related Experiment Videos

Last Updated: Apr 7, 2026

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
08:30

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging

Published on: September 11, 2011

15.0K
Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification ADCI and Dose Estimation
10:33

Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification ADCI and Dose Estimation

Published on: September 4, 2017

16.8K
Clinical Imaging of Microwave Mammography
05:28

Clinical Imaging of Microwave Mammography

Published on: November 14, 2025

405

Area of Science:

  • Medical Imaging
  • Radiology
  • Mammography Technology

Background:

  • Current full field digital mammography (FFDM) automatic exposure control (AEC) modes maintain constant pixel values, which can reduce image quality as breast thickness increases.
  • This limitation affects the detectability of subtle abnormalities in denser breast tissue.

Purpose of the Study:

  • To propose and evaluate a modified AEC mode for FFDM systems.
  • The goal is to maintain a consistent level of object detectability across a range of breast thicknesses, particularly improving performance for thicker breasts.

Main Methods:

  • Assessed the default AEC mode of a Siemens MAMMOMAT Inspiration system using poly(methyl methacrylate) (PMMA) phantoms of varying thicknesses.
  • Calculated the detectability index (d') and threshold gold thickness (Tt) to compare the default and modified AEC modes.
  • Evaluated performance in both homogeneous and structured (CIRS BR3D phantom) backgrounds using model observers and human observers.

Main Results:

  • The default AEC mode showed significant decreases in signal-difference-to-noise ratio (SDNR) and detectability (d') with increasing PMMA thickness.
  • The modified AEC mode successfully maintained constant threshold gold thickness (Tt) and SDNR across different thicknesses, especially above 40 mm PMMA.
  • While object detectability improved with the modified AEC, mean glandular dose (MGD) increased at greater thicknesses but remained within European guidelines.

Conclusions:

  • A modified AEC mode can achieve constant object detectability in FFDM, particularly beneficial for thicker breasts.
  • This approach enhances image quality and diagnostic performance without compromising patient safety regarding radiation dose.
  • Further clinical validation with realistic patient data is warranted.