Related Experiment Video
Updated: Aug 11, 2026

08:30
X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
Published on: September 11, 2011
Image quality and dose management in digital radiography: a new paradigm for optimisation
1Department of Radiology, Krankenhaus der Barmherzigen Brudder, Nordalle, Trier, Germany.
Radiation Protection Dosimetry
|February 8, 2006
Summary
Digital radiography offers improved imaging and lower radiation doses due to higher detective quantum efficiency (DQE). New strategies are needed for dose and quality optimization with these advanced digital systems.
Area of Science:
- Radiology
- Medical Imaging Technology
- Digital Health
Background:
- Digital imaging revolutionizes radiology, expanding diagnostic capabilities.
- Film/screen radiography is rapidly being replaced by digital systems globally.
- Computed radiography (CR) and direct digital radiography (DR) are increasingly adopted.
Purpose of the Study:
- To highlight the opportunities and challenges presented by new digital radiography systems.
- To address the need for new dose and quality optimization strategies.
- To propose a set of referral criteria based on three dose levels.
Main Methods:
- Discusses the transition from conventional film/screen to digital radiography.
- Highlights the improved detective quantum efficiency (DQE) of digital systems.
- Emphasizes the necessity of developing new optimization strategies.
Main Results:
- Digital systems enable image acquisition at potentially lower radiation doses.
- Higher detective quantum efficiency (DQE) is a key advantage of digital imaging.
- Fundamental differences necessitate revised approaches to dose and quality control.
Conclusions:
- Digital radiography presents a paradigm shift requiring new optimization strategies.
- Development of new referral criteria based on dose levels is proposed.
- Optimizing dose and quality is crucial for effective use of advanced digital imaging.
More Related Videos
Related Concept Videos
X-ray Imaging
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 X-rays, and by 1900, X-ray was widely...
Computed Tomography
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...
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...
Imaging Studies for Cardiovascular System III: X-Ray
The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
Positron Emission Tomography
Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body being...
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body being...

