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Related Concept Videos

Imaging Studies for Cardiovascular System III: X-Ray01:20

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.
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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...
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Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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Imaging Studies VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
Imaging Studies III: Computed Tomography01:27

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Related Experiment Video

Updated: May 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

Online training on the safe use of fluoroscopy can result in a significant decrease in patient dose.

Katherine C Frederick-Dyer1, Austin R Faulkner, Ted T Chang

  • 1Department of Radiology, University of Tennessee Graduate School of Medicine, Knoxville, TN.

Academic Radiology
|September 14, 2013
PubMed
Summary
This summary is machine-generated.

An online fluoroscopy training program significantly reduced patient radiation doses, including fluoroscopy time and dose-area product, for radiology residents. This essential training did not compromise the diagnostic quality of gastrointestinal and genitourinary procedures.

Keywords:
Dose reductionfluoroscopyonline training

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Area of Science:

  • Medical Imaging and Radiology
  • Medical Education
  • Radiation Safety

Background:

  • Medical radiation exposure is a growing concern, necessitating robust training for radiology residents.
  • Fluoroscopy, frequently used by inexperienced residents, poses a risk of high patient radiation doses.
  • Online training offers a scalable solution for immediate radiation safety instruction.

Purpose of the Study:

  • To evaluate the effectiveness of an online fluoroscopy training program for new radiology residents.
  • To determine if the training reduces patient radiation dose.
  • To assess if diagnostic image quality is maintained after the training.

Main Methods:

  • Retrospective review of four years of fluoroscopic procedure data.
  • Incoming residents completed an online radiation safety training module before their first rotation.
  • Patient dose (DAP, FT) and diagnostic quality metrics were compared pre- and post-training.

Main Results:

  • Statistically significant reductions in fluoroscopy time (FT) for barium enema, cystogram, defecogram, and esophagram.
  • Significant decreases in dose-area product (DAP) for esophagram and upper gastrointestinal studies.
  • Average DAP reduction of 38% and FT reduction of 25% across procedures, with no significant loss in diagnostic quality.

Conclusions:

  • An online training program effectively delivers radiation safety education prior to fluoroscopy rotations.
  • This training leads to decreased patient radiation doses without compromising diagnostic quality.
  • Online modules are a viable method for enhancing radiation safety practices in radiology residency programs.