Results 281 to 290 of about 12,005,894 (331)

The effective dose of remimazolam in adult gastroscopy.

Indian J Pharmacol
Zhang R, Zhao G, Yan Z, Xuan H, Chen Y.
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Effect of variable dose rate on biologically effective dose

International Journal of Radiation Biology, 2013
To investigate the effect of variable dose rate on biologically effective dose (BED).By using the linear-quadratic (LQ) model with bi-exponential repair, we analytically determine the time-dependent dose rate [Formula: see text] which minimizes the effective protraction factor (Geff) and BED under the condition of fixed fraction time and dose per ...
Vadim Y, Kuperman, Greg S, Spradlin
openaire   +2 more sources

Effective Dose Assessment for Patients Undergoing Contemporary Fluoroscopically Guided Interventional Procedures.

AJR. American journal of roentgenology, 2019
OBJECTIVE. The purpose of this study was to establish procedure-specific air kerma-area product (KAP) and effective dose for a large number of fluoroscopically guided interventional (FGI) procedures. MATERIALS AND METHODS.
Xinhua Li, J. Hirsch, Madan M. Rehani, Kai Yang, Bob Liu   +4 more
semanticscholar   +1 more source

Neutron dose effect relationships at low doses

Radiation and Environmental Biophysics, 1988
Stimulated by recent observations of non-linearity in the dose effect relationship for the transformation of mammalian cells in vitro by fission neutron irradiation and the reverse dose rate effect in this system, the data for mutation induction in the stamen hairs of Tradescantia occidentalis has been re-examined.
J A, Dennis, L A, Dennis
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ESTIMATION OF EFFECTIVE DOSE OF DENTAL X-RAY DEVICES.

Radiation Protection Dosimetry, 2018
This study aims to estimate the effective doses of dental X-ray devices under common scanning protocols. After putting TLDs in the Alderson Radiation Therapy Phantom, we exposed the phantom under common scanning protocols of three dental X-ray devices ...
Wang Qiang, Fu Qiang, Lin Lin
semanticscholar   +1 more source

Calculation of effective dose

Medical Physics, 2000
The concept of “effective dose” was introduced in 1975 to provide a mechanism for assessing the radiation detriment from partial body irradiations in terms of data derived from whole body irradiations. The effective dose is the mean absorbed dose from a uniform whole‐body irradiation that results in the same total radiation detriment as from the ...
C H, McCollough, B A, Schueler
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Organ Doses and Effective Dose Equivalent

Radiation Protection Dosimetry, 1985
For a modified version of the anthropoid MIRD phantom the organ doses and the effective dose equivalent for external neutron irradiation have been calculated in the past by the so called CHORD method. It was anticipated from a few preliminary Monte Carlo Calculations and based upon basic physical considerations that CHORD results may be generally too ...
Wittmann, A., Morhart, A., Burger, G.T.
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Effective dose ? how effective for patients?

Radiation and Environmental Biophysics, 1993
The question discussed in this paper is whether effective dose can reflect the risk to patients from radiological procedures and can be used, for example, to optimise procedures and compare risks of various methods, to define dose constraints, and to estimate the risks to individuals or populations attributed to medical exposures.
G, Drexler, W, Panzer, N, Petoussi, M, Zankl   +3 more
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Dose Prescription and Dose-Volume Effects in Radiosurgery

Neurosurgery Clinics of North America, 1992
The optimal use of radiosurgery as a treatment technique requires thorough planning, including careful fitting of the high-dose treatment volume to the target volume, and an understanding of the effects of high-dose single-fraction irradiation on both the target volume and the surrounding normal brain.
J C, Flickinger, L D, Lunsford, D, Kondziolka   +2 more
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Dose and dose rate effectiveness of space radiation

Radiation Protection Dosimetry, 2006
Dose and dose rate effectiveness factors (DDREF), in conjunction with other weighting factors, are commonly used to scale atomic bomb survivor data in order to establish limits for occupational radiation exposure, including radiation exposure in space. We use some well-known facts about the microscopic pattern of energy deposition of high-energy heavy ...
W, Schimmerling, F A, Cucinotta
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