CALDose_X—a software tool for the assessment of organ and tissue absorbed doses, effective dose and cancer risks in diagnostic radiology

Kramer, Richard A.; Khoury, Helen J.; Vieira, José Wilson

doi:10.1088/0031-9155/53/22/011

Cited by 77 publications

(66 citation statements)

References 34 publications

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“…The TLD-100 chips were calibrated at the Secondary Standard Dosimetry Laboratory (SSDL) in Malaysia Nuclear Agency (Nuclear Malaysia), which they were irradiated at 8 mGy to determine the TL response of the dosimeter to a measured exposure or absorbed dose of radiation of clearly defined energy [10]. The TLDs were read-out using Harshaw Thermoluminescence Dosimetry (TLD) Reader Model 3500.…”

Section: Thermoluminescent Dosimetermentioning

confidence: 99%

128 slice computed tomography dose profile measurement using thermoluminescent dosimeter

Salehhon

Hashim²,

Karim

et al. 2017

J. Phys.: Conf. Ser.

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A preliminary study of the measurement of slice-width dose profiles (SWDP) on diagnostic x-ray CT scanners using PAGAT polymer gel dosimeters with optical CT read-out Sarvenaz Sarabipour, Stephen Bosi, Brendan Hill et al. Abstract. The increasing use of computed tomography (CT) in clinical practice marks the needs to understand the dose descriptor and dose profile. The purposes of the current study were to determine the CT dose index free-in-air (CTDIair) in 128 slice CT scanner and to evaluate the single scan dose profile (SSDP). Thermoluminescent dosimeters (TLD-100) were used to measure the dose profile of the scanner. There were three sets of CT protocols where the tube potential (kV) setting was manipulated for each protocol while the rest of parameters were kept constant. These protocols were based from routine CT abdominal examinations for male adult abdomen. It was found that the increase of kV settings made the values of CTDIair increased as well. When the kV setting was changed from 80 kV to 120 kV and from 120 kV to 140 kV, the CTDIair values were increased as much as 147.9% and 53.9% respectively. The highest kV setting (140 kV) led to the highest CTDIair value (13.585 mGy). The p-value of less than 0.05 indicated that the results were statistically different. The SSDP showed that when the kV settings were varied, the peak sharpness and height of Gaussian function profiles were affected. The full width at half maximum (FWHM) of dose profiles for all protocols were coincided with the nominal beam width set for the measurements. The findings of the study revealed much information on the characterization and performance of 128 slice CT scanner. - Recent citations

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Section: Thermoluminescent Dosimetermentioning

confidence: 99%

128 slice computed tomography dose profile measurement using thermoluminescent dosimeter

Salehhon

Hashim²,

Karim

et al. 2017

J. Phys.: Conf. Ser.

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“…Based on the X-ray irradiation parameters defined by the user, CALDose_X shows images of the phantom together with the position of the X-ray beam. By using true to nature vowel phantoms, CAL Dose_ X improves earlier software tools, which were mostly based on mathematical MIRD5-type phantoms, i.e.poor representations of human anatomy [6].…”

Section: Caldosementioning

confidence: 99%

“…Radiation dose to different dose to various organs or tissues in the body cannot measure directly undergoing x-ray examinations, but they can be estimated with reasonable accuracy if sufficient data on the x-ray examination parameters are available .CALDOSE is a software tool that provides the possibility to calculate incident air kerma (INAK) and entrance surface air kerma (ESAK), as two important quantities used in X-ray diagnosis, based on the output of the X-ray equipment. Additionally, the software uses conversion coefficients (CCs) to assess absorbed dose to organs and tissues of the human body, the effective dose as well as the patient's cancer risk for radiographic examinations [6]. [7].…”

Section: Introductionmentioning

confidence: 99%

Measurement of Kidneys

2017

IJSR

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Abstract:The study involved 60 patients; their ages were between (20_80) years, who underwent Chest and Abdominal radiographic examinations in three hospitals at Khartoum state (A, B and C). The objective of this study was to measure of the kidneys' dose in three hospitals during chest and abdominal radiographic examinations .The data were collected using a sheet for all patients in order to maintain consistency of the information the age, exposure factors and type of examination were recorded. The examinations were collected according to the availability. After treating data with Cal Dose software, the ESAK and kidneys' dose were recorded. The percentage of kidneys' dose, the average, maximum and minimum of all data group were determined. Patient who underwent abdominal radiographic examination had higher ESAK values than those who underwent chest radiographic examinations ,.Also was found that no regular quality control measurements were done to those hospitals and the output was different from one hospital to another a matter which caused variations in the values of ESAK and kidneys' dose in each hospital. Kidneys' dose during chest and abdominal radiographic examinations had no considerable effect on the patients unless; the examinations are repeated many times in short intervals. Also comparisons of doses received during the study and the reference values were shown .The study concluded that: Differences were observed between the values of ESAK and kidney's dose in each hospital for different examinations; these differences were due to differences in setup, exposure factors to the same exam in each hospital and the output of the machine.

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“…Several groups used Monte Carlo methods to simulate the patient doses under IR procedures [22][23][24] . FAX06 and MAX06 phantoms were applied by Kramer et al to calculate organ doses for the most common examinations in X-ray diagnosis [22] . Bozkurt and Bor used VIP-Man to simulate the organ doses in an interventional cardiological procedure [23] .…”

Section: Introductionmentioning

confidence: 99%

Monte Carlo calculations for reporting patient organ doses from interventional radiology

Huo

Feng

et al. 2017

EPJ Web Conf.

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CALDose_X—a software tool for the assessment of organ and tissue absorbed doses, effective dose and cancer risks in diagnostic radiology

Cited by 77 publications

References 34 publications

128 slice computed tomography dose profile measurement using thermoluminescent dosimeter

128 slice computed tomography dose profile measurement using thermoluminescent dosimeter

Measurement of Kidneys

Monte Carlo calculations for reporting patient organ doses from interventional radiology

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