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Biological Effects of Radiation

Biological Effects of Radiation

All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they...

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Related Experiment Video

Updated: Jan 1, 2026

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition

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Radiation exposure during videourodynamic testing: Is dose reduction possible using a standardized protocol?

Daniel Hoffman¹, Rachael D Sussman², Dominique M Pape²

¹Department of Urology, University of South Florida, Tampa, Florida.

Neurourology and Urodynamics

|December 18, 2019

Summary

This summary is machine-generated.

A standardized video urodynamics protocol significantly reduced radiation exposure by 51.2% and fluoroscopy time by 96.5%. Vesicoureteral reflux and higher BMI were linked to increased exposure.

Keywords:

quality improvement radiation exposure urodynamics

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Last Updated: Jan 1, 2026

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition

Published on: March 11, 2021

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Published on: February 20, 2021

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging

Published on: September 11, 2011

Area of Science:

Urology
Radiology
Medical Imaging

Background:

Video urodynamics (VUD) involves radiation exposure.
Standardized protocols can optimize imaging techniques.
Reducing radiation dose is a key goal in medical imaging.

Purpose of the Study:

To assess the impact of a standardized image capture protocol on radiation exposure during VUD.
To correlate radiation exposure with specific clinical conditions and patient factors.

Main Methods:

A standardized VUD protocol with low-dose, pulsed settings was implemented for 150 patients.
Radiation exposure (DAP, fluoroscopy time, image count) was measured and compared to pre-protocol data.
Clinical data, including vesicoureteral reflux (VUR) and body mass index (BMI), were analyzed.

Main Results:

Protocol implementation reduced mean radiation dose (DAP) by 51.2% (P<.0001) and fluoroscopy time by 96.5% (P<.0001).
Vesicoureteral reflux (VUR), longer fluoroscopy times, and BMI > 25 were associated with increased radiation exposure (P<.0001).

Conclusions:

A standardized VUD protocol effectively reduces radiation exposure and fluoroscopy time.
Identifying factors like VUR and BMI is crucial for managing radiation dose in VUD.