absorbed dose.
Transcriptional Response in Mouse Thyroid Tissue after 211At Administration: Effects of Absorbed Dose, Initial Dose-Rate and Time after Administration.
... with absorbed dose/dose-rate in a similar way with the lowest number of regulated tran- scripts in the groups that received the highest absorbed dose/dose-rate, but the ...
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Analysis of lenses absorbed dose in head CT scan with the use of bismuth shielding
... the dose variation deposited in the lenses and in nearby organs, such as: pharynx, hypophysis and salivary gland with and without the use of bismuth ...scanner. Dose measurements have been performed by ...
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Analysis of thyroid absorbed dose in cervical CT scan with the use of bismuth shielding
... The absorbed doses were determined during a cervical CT scans with and without bismuth shielding on neck of an Alderson Rando male anthropomorphic ...phantom. Dose values were significantly re- duced in all ...
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Braz. J. Chem. Eng. vol.30 número4
... of absorbed dose, most likely due to the protective effect of the granular architecture and the solid physical state of the starch treated, which did not allow the diffusion of the free radicals formed, so ...
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BRAZILIAN ARCHIVES OF BIOLOGY AND TECHNOLOGY
... of the rate of exposure and the absorbed dose by the population (Kannan et al., 2002). This knowledge ensures radiological control, since a predominant part of the environmental radiation is found in the ...
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Evaluation of biokinetics and dosimetry in [131I]-NaI therapies: whole-body images quantification versus lower limb region
... the absorbed dose in bone marrow and whole body based on dosimetry of this region was similar to the absorbed dose obtained by whole body dosimetry only by applying an adjustment factor that ...
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Dose Absorbed by Technologists in Positron Emission Tomography Procedures with FDG
... center. Dose equivalent Hp(10) and skin dose ...assessment dose absorbed by hands during drawing up of tracer and injection into the patient, a Polimaster wristwatch gamma dosimeter was ...
6
Radiol Bras vol.42 número4 en v42n4a12
... the absorbed dose is higher than the absorbed dose in the homogeneous phantom, and for the lung tissue simulator, it is ...of dose distribution in patients, increasing the accuracy of ...
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Patient-specific phantoms versus reference phantoms: a preliminary comparison on organs dose distribution
... The simulation was performed for brain, lungs, liver and kidneys using the EGSnrc Monte Car- lo code [6] and a parallel source algorithm [1]. The choice of the number of stories more suitable to obtain satisfactory ...
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Planar and tomographic imaging dosimetry comparing to develop a new radiopharmaceutical for melanoma therapy
... the absorbed doses in each ...the dose factors provided by the IDAC 2.1 software, the absorbed doses in the target organs irradiated by the source organs were calculated and, finally, the effective ...
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Braz. J. Phys. vol.40 número1
... products. Dose mapping must be performed in these equipments in order to establish plant operational parameters, as dose uniformity, source utilization efficiency and maximum and minimum dose ...the ...
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Radiol Bras vol.39 número3 en a10v39n3
... This study results are perfectly in compliance with international recommendations suggested for calibration of this type of chamber in relation to the total uncertainty associated with the chamber calibration factor, in ...
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Dosimetric evaluation of extremities in 18F-FDG PET/CT procedure using Monte Carlo Geant4 code
... the absorbed dose values obtained by Monte Carlo Geant4 code ...daily dose values, it was considered that a professional in nuclear medicine service manipulate the radiopharmaceutical using a syringe ...
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Comparative Study of the Use of Bismuth Shielding on Head Computed Tomography Scans Using Phantoms
... Computed Tomography (CT) has been one of the most used exam for radiologic diagnostic in medicine. The increase of CT is a global concern due to high doses of radiation. The head CT scans helps to diagnose disorders that ...
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Braz. Dent. J. vol.28 número4
... the absorbed doses related to CBCT acquisition with Standard mode and different FOV sizes (5x5 cm, 6x8 cm and 8x15 cm) for the TMJ ...(absorbed dose of one exam with 5x5 cm ...total absorbed ...
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Braz. J. Phys. vol.35 número3B
... neutron absorbed dose rate for two, four (although no figures have been presented) and eight sour- ces are ...the absorbed dose (figure 12) with the increasing of the number of neutron ...
4
Braz. J. Phys. vol.39 número4
... Wedged beam are often used in clinical radiotherapy to compensate missing tissues and dose gradients. In this work, the Fricke Xylenol Gel (FXG) dosimeter was used for 6 MV photons radiation wedge field profiles ...
4
Braz. J. Phys. vol.35 número3B
... The radiated Petri plates containing the microorganisms were cultivated during 24 hours (36 o C) the number of colo- nies formed were later determined. For each of the radiation types (UVc and protons) a survival curve ...
3
Braz. J. Pharm. Sci. vol.51 número2
... the complex was studied using Instant thin layer chromatography (ITLC) method. Stability of the complex was checked in inal formulation and human serum for 48 h. The biodistribution of the labeled compound in vital ...
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Size Effects of Gold and Iron Nanoparticles on Radiation Dose Enhancement in Brachytherapy and Teletherapy: A Monte Carlo Study
... In this study, semi-randomly distributed NPs were used. In this distribution, a new algorithm was proposed to simulate the random distribution of NPs within the tissue. To model this arrangement, a computer program was ...
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