Technical Note: Comparison of the internal target volume (ITV) contours and dose calculations on 4DCT, average CBCT, and 4DCBCT imaging for lung stereotactic body radiation therapy (SBRT)
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DOI: 10.1002/acm2.13041
Abstract: Abstract Purpose To investigate the differences between internal target volumes (ITVs) contoured on the simulation 4DCT and daily 4DCBCT images for lung cancer patients treated with stereotactic body radiotherapy (SBRT) and determine the dose delivered… read more here.
Keywords: target; stereotactic body; internal target; dose calculations ... See more keywords
Advanced Collapsed cone Engine dose calculations in tissue media for COMS eye plaques loaded with I‐125 seeds
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DOI: 10.1002/mp.12946
Abstract: Purpose To investigate the dose calculation accuracy of the Advanced Collapsed cone Engine (ACE) algorithm for ocular brachytherapy using a COMS plaque loaded with I‐125 seeds for two heterogeneous patient tissue scenarios. Methods The Oncura… read more here.
Keywords: advanced collapsed; collapsed cone; tissue; dose calculations ... See more keywords
Deep learning–based 4D‐synthetic CTs from sparse‐view CBCTs for dose calculations in adaptive proton therapy
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DOI: 10.1002/mp.15930
Abstract: Abstract Background Time‐resolved 4D cone beam–computed tomography (4D‐CBCT) allows a daily assessment of patient anatomy and respiratory motion. However, 4D‐CBCTs suffer from imaging artifacts that affect the CT number accuracy and prevent accurate proton dose… read more here.
Keywords: accuracy; sparse view; deep learning; dose calculations ... See more keywords
Abstract ID: 114 The impact of dual-energy CT tissue segmentation for low-dose rate prostate brachytherapy Monte Carlo dose calculations
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DOI: 10.1016/j.ejmp.2017.09.061
Abstract: Purpose To evaluate the impact of a novel tissue segmentation method based on dual-energy CT (DECT) for low-dose rate (LDR) brachytherapy dose calculations, by comparison with a reference single-energy CT (SECT) segmentation method. Methods A… read more here.
Keywords: energy; segmentation; tissue; geometry ... See more keywords
Clinical evaluation of a novel CT image reconstruction algorithm for direct dose calculations
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DOI: 10.1016/j.phro.2017.03.001
Abstract: Abstract Background and purpose Computed tomography (CT) imaging is frequently used in radiation oncology to calculate radiation dose distributions. In order to calculate doses, the CT numbers must be converted into densities by an energy… read more here.
Keywords: evaluation novel; image reconstruction; clinical evaluation; novel image ... See more keywords
Accuracy of radiotherapy dose calculations based on cone-beam CT: comparison of deformable registration and image correction based methods.
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DOI: 10.1088/1361-6560/aab0f0
Abstract: Radiotherapy dose calculations based on cone-beam CT (CBCT) images can be inaccurate due to unreliable Hounsfield units (HU) in the CBCT. Deformable image registration of planning CT images to CBCT, and direct correction of CBCT… read more here.
Keywords: image; correction; radiotherapy dose; registration ... See more keywords
THE MAYAK WORKER DOSIMETRY SYSTEM-2013 (MWDS-2013): PHASE II—QUALITY ASSURANCE OF ORGAN DOSE CALCULATIONS
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DOI: 10.1093/rpd/ncx085
Abstract: In order to check developed software tools, it was necessary to compare estimates of statistical characteristics of annual absorbed plutonium internal doses obtained by PANDORA and IMBA software with the same original data. The results… read more here.
Keywords: mwds 2013; dose calculations; mayak worker; worker dosimetry ... See more keywords
DEVELOPMENT OF A SET OF MESH-BASED AND AGE-DEPENDENT CHINESE PHANTOMS AND APPLICATION FOR CT DOSE CALCULATIONS
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DOI: 10.1093/rpd/ncx296
Abstract: Phantoms for organ dose calculations are essential in radiation protection dosimetry. This article describes the development of a set of mesh-based and age-dependent phantoms for Chinese populations using reference data recommended by the Chinese government… read more here.
Keywords: adult; years old; age; mesh based ... See more keywords
The accuracy of timed maximum local anaesthetic dose calculations with an electronic calculator, nomogram, and pen and paper
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DOI: 10.1111/anae.13810
Abstract: Forty anaesthetists calculated maximum permissible doses of eight local anaesthetic formulations for simulated patients three times with three methods: an electronic calculator; nomogram; and pen and paper. Correct dose calculations with the nomogram (85/120) were… read more here.
Keywords: electronic calculator; local anaesthetic; paper; pen paper ... See more keywords
Evaluation of dose calculations with inhomogeneity correction in intensity-modulated radiation therapy for esophagus cancer.
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DOI: 10.3233/xst-17364
Abstract: BACKGROUND Differences often exist in the dose calculation accuracy caused by using different dose calculation algorithms in non-uniform tissues. OBJECTIVE To evaluate the accuracy of dose calculation with inhomogeneity correction in intensity-modulated radiation therapy (IMRT)… read more here.
Keywords: esophagus cancer; dose calculations; inhomogeneity correction;