Results 41 to 50 of about 2,488,526 (298)

Introduction of software for patient dose assessment in computed tomography

Vietnam Journal of Science, Technology and Engineering
In recent years, there has been increasing concern about the radiation dose to patients undergoing radiological examinations, particularly computed tomography (CT), which has been reported to contribute the highest collective dose among X-ray diagnostic
Nhu Tuyen Pham, Quang Dao Nguyen, Anh Tung Hoang   +2 more
doaj   +1 more source

The effect of epoetin dose on hematocrit [PDF]

Kidney International, 2008
Nearly all dialysis patients receive epoetin therapy to treat anemia. Using the United States Renal Data System, we monitored the 14,001 patients aged 65 and older who started dialysis and epoetin treatment in 2003-2004. We estimated the dose-response relationship for the average epoetin dose and hematocrit during a 3-month initiation and subsequent 3 ...
Cotter, D., Zhang, Y., Thamer, M., Kaufman, J., Hernán, M.A.   +4 more
openaire   +2 more sources

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Biological-effective versus conventional dose volume histograms correlated with late genitourinary and gastrointestinal toxicity after external beam radiotherapy for prostate cancer: a matched pair analysis

BMC Cancer, 2003
Background To determine whether the dose-volume histograms (DVH's) for the rectum and bladder constructed using biological-effective dose (BED-DVH's) better correlate with late gastrointestinal (GI) and genitourinary (GU) toxicity after treatment with ...
Roeske John C, Pelizzari Charles A, Hand Christopher M, Jani Ashesh B, Krauz Lani, Vijayakumar Srinivasan   +5 more
doaj   +1 more source

Personalized Selumetinib Dosing in Pediatric Neurofibromatosis Type 1: Insights From a Pilot Therapeutic Drug Monitoring Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Objective To evaluate selumetinib exposure using therapeutic drug monitoring (TDM) in pediatric patients with neurofibromatosis type 1 (NF1) and plexiform neurofibromas (PN), assess interpatient pharmacokinetic variability, and explore the relationship between drug exposure, clinical response, and adverse effects.
Janka Kovács, Zoltán Köllő, Balázs Gellért Karvaly, Mahmoud Obeidat, Rita Nagy, Péter Hegyi, Brigitta Teutsch, Eszter Tuboly, Miklós Garami   +8 more
wiley   +1 more source

Optimal designs for estimating critical effective dose under model uncertainty in a dose response study [PDF]

Toxicologists have been increasingly using a class of models to describe a continuous response in the last few years. This class consists of nested nonlinear models and is used for estimating various parameters in the models or some meaningful function ...
Dette, Holger, Pepelyshev, Andrey, Shpilev, Piter, Wong, Weng Kee   +3 more
core   +3 more sources

Comparison of doses received from non-contrast enhanced brain CT examinations between two CT scanners

Heliyon
Objectives: Medical devices based on X-ray imaging, such as computed tomography, are considered notable sources of artificial radiation. The aim of this study was to compare the computed tomography dose volume index, the dose length product, and the ...
Veronika Žatkuliaková, Martin Števík, Martin Vorčák, Ján Sýkora, Zuzana Trabalková, Gabriel Broocks, Lukas Meyer, Jens Fiehler, Kamil Zeleňák   +8 more
doaj   +1 more source

Absence of a dose-rate effect in the transformation of C3H 10T1/2 cells by α-particles [PDF]

, 1987
The findings of Hill et al. (1984) on the greatly enhanced transformation frequencies at very low dose rates of fission neutrons induced us to perform an analogous study with -particles at comparable dose rates. Transformation frequencies were determined
Balcer-Kubiczek E.K., Barendsen G.W, Barendsen G.W., Borek C., Burch P.R.J., Elkind M.M., Hall E.J., Han A., Han A., Hill C.K., Hill C.K., Hill C.K., Lloyd E.L., Miller R.C., Miller R.C., Reznikoff C., Robertson J.B., Roos H., Rossi H.H., Terzaghi M., Yang T.   +20 more
core   +1 more source

Adherence to Protocol Recommendations for Children With Wilms Tumour in Two Consecutive Studies in the United Kingdom and Ireland—Does Variation Matter?

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background and Aims Wilms tumour (WT) has excellent event‐free and overall survival (OS). However, small differences exist between countries participating in the same international study. This led us to examine variation in adherence to protocol recommendations as a potential contributing factor.
Suzanne Tugnait, R. Al‐Saadi, A. Lopez‐Cortes, K. Dzhuma, M. Oostveen, J. Brok, S. Irtan, M. Weeks, J. Bate, S. Baker, R. Williams, M. Powis, D. Saunders, O. Olsen, T. Watson, S. Shelmerdine, S. Vaidya, L. Howell, C. Duncan, G. M. Vujanic, C. Stiller, G. P. Balchin, T. Chowdhury, K. Pritchard‐Jones   +23 more
wiley   +1 more source

Radionuclides as inorganic contaminants of the aquatic environment

Desalination and Water Treatment
Radioactive isotopes are an inherent component of the natural environment. They can occur naturally or result from human activities, including nuclear energy production and industrial processes.
Agnieszka Dołhańczuk-Śródka, Daniel Janecki, Alicja Gawdzik   +2 more
doaj   +1 more source