Estimates of Patient Radiation Doses in Digital Radiography Using DICOM Information at a Large Teaching Hospital in Oman

Suliman, I.I.

doi:10.1007/s10278-019-00199-y

Cited by 23 publications

(17 citation statements)

References 19 publications

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“…Table 6 shows a summary of this study’s LDRL values that they were lower than those of international organisations (EC 2018 ; IAEA 2004 ) and other previously published studies (Ahmed et al 2020 ; Baş Mor et al 2018 ; Hart et al 2012 ; Hoseini Motlagh et al 2020 ; Metaxas et al 2019 ; Mohsenzadeh et al 2018 ; Nyathi et al 2009 ; Suliman 2020 ). The reason for this is that the radiographers at the research site used the high kVp and low mAs technique to produce chest X-ray radiographs.…”

Section: Resultsmentioning

confidence: 50%

Local diagnostic reference levels for routine chest X-ray examinations at a public sector hospital in central South Africa

Junda

Müller

Friedrich-Nel

2021

Health SA Gesondheid

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Background: Dose optimisation is a radiation protection guideline recommended by the International Commission on Radiological Protection (ICRP) for adherence to the ‘as low as reasonably achievable’ (ALARA) principle. Diagnostic reference levels (DRLs) are used to optimise patients’ radiation protection for diagnostic and interventional procedures and are particularly useful for frequently performed examinations such as chest X-rays.Aim: To establish the local diagnostic reference levels (LDRLs) for routine chest X-rays.Setting: Public sector hospital, Northern Cape province, South Africa.Methods: Sixty patients referred for chest X-rays fulfilling the inclusion criteria participated in this study. Patients were ≥ 18 years of age and weighed between 60 kg and 80 kg. Consent for participation was obtained. The entrance skin air kerma (ESAK) was measured by using the indirect method recommended by the International Atomic Energy Agency (IAEA). Statistical software (SAS version 9.2) was used to determine the LDRLs for chest X-rays in three different rooms. In two rooms, computed radiography (CR) was used and the other one was a digital radiography (DR) unit. The LDRL values at the research site were compared with various published international values.Results: LDRLs for chest X-rays were established. The CR LDRL value for the posteroanterior (PA) chest projection was higher than the DR (flat panel detector [FPD]) LDRL value. The LDRLs of the PA chest projections were 0.3 mGy for CR and 0.2 mGy for DR. The lateral (LAT) chest projection LDRL value was 0.8 mGy for both CR and DR (FPD) projections. The resultant LDRL between rooms at the research site was 0.3 mGy for PA 0.3 mGy and 0.8 mGy for LAT chest projections.Conclusion: The LDRLs for chest X-rays established at this research site were lower than internationally reported DRLs. We recommend that LDRLs for routine chest X-rays should be repeated every 3 years, according to the ICRP.Contribution: Currently, no established or published DRL values prescribed by the Directorate of Radiation Control (DRC) are available in South Africa. The LDRLs established for routine chest X-ray examinations at this research site can serve as a guideline for the establishment of DRL values for other anatomical regions at the research site and other radiology departments in the country.

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Section: Resultsmentioning

confidence: 50%

Local diagnostic reference levels for routine chest X-ray examinations at a public sector hospital in central South Africa

Junda

Müller

Friedrich-Nel

2021

Health SA Gesondheid

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“…1dengan t p adalah ketebalan pasien, untuk ketebalan pasien pada pemeriksaan chest PA, abdomen PA, pelvic PA dan lumbar spine AP digunakan standar 23 cm dan 30 cm untuk semua proyeksi LAT. Sedangkah x adalah jarak antara detektor dengan holder detektor bagian muka yang diperkiran pada jarak 5 cm (Suliman, 2020).…”

Section: Materials Dan Metodeunclassified

“…Sehingga pada akhirnya dinamika nilai DRL bermuara pada kaidah As Low As Achievable Reasonable (ALARA). Nilai ESD hasil studi ini, jika dibandingkan dengan studi yang sejenis (Osibote and de Azevedo, 2008), (Suliman, 2020) serta nilai DRL Nasional (iDRL) (BAPETEN, 2019), serta acuan lembaga internasional seperti IAEA (IAEA., 2018) dan Europian Commission (EC) (European Union, 2014) ditampilkan pada Tabel 3.…”

Section: Pembahasanunclassified

Estimation of Entrance Surface Dose (Esd) as a Dose Profile for Patients Undergoing Radiography Examination Based on Tube Output Measurement

et al. 2020

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Background: Radiography examinations are the most widely used and indispensable tools in medical imaging. The dose received by the patient should be known to prevent the risk of radiation exposure. Patient dose in radiography examination can be best estimated in terms of entrance surface dose (ESD). ESD value can be obtained by using the recorded dose viewer installed on the device. However, not all devices have this feature. Other methods can be conducted using thermoluminescence dosimeter (TLD) although it practically requires a high cost. Purpose: The study aims to estimate the ESD as a dose profile for patients undergoing radiography examination using tube output. Method: The patient data and exposure factors were retrospectively recorded for 263 patients. The ESD was estimated from the measurements of the X-ray tube output and recorded exposure factors. Results: The ESD value varied from 0.002 to 0.41 mGy. In the thorax PA, thorax LAT, cervical LAT, cervical AP, skull AP, skull LAT, genu LAT and waters was found (0,23±0.05) mGy, (0,09±0,05) mGy, (0,07±0,04) mGy, (0,13±0,08) mGy, (0,03±0,01) mGy, (0,06±0,02) mGy, (0,04±0,00) mGy (0,04±0,02) mGy, respectively. These results were further used to determine the Local Diagnostic Reference Level (LDRL) value. Conclusion: The results revealed that LDRL fell below the national DRL value and international reference

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“…3d dose delivery in radiology [13][14] and Radiotherapy 15 are essential to improve efficiency and avoid complications…”

Section: Iii-practical Use Of Dicom Imaging In Medicinementioning

confidence: 99%

DICOM format: definition and practical use in vascular medicine

Uhl¹

2018

JTAVR

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The imaging is essential in vascular medicine for diagnosis and treatment. New imaging techniques since the advent of the spiral CT scan, invented by Hounsfield and Mac Cormack in 1972, brought us a revolution in whole medicine. This has been possible thanks to the development of new standards for imaging, particularly DICOM format. The aim of this paper is to explain what is DICOM and how we use it in vascular medicine. DICOM (Digital Imaging and Communications in Medicine standards) is an universal worldwide format used for medical imaging for all vascular investigation techniques: sonography, CT (computed tomography) and MRI (magnetic resonance imaging). This format allows 3D reconstruction of the patient's anatomy and gives access to quantification of all anatomical structures of the body, in particular of the vessels. It is achieved with dedicated software called DICOM browsers. These new tools of tridimensional (3D) modeling of the vessels bring us more accurate data of vascular anatomy. They make us enter in an era of new endoscopic and surgical techniques fully based on the image data, and so open the way for simulation, training and augmented reality.

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Estimates of Patient Radiation Doses in Digital Radiography Using DICOM Information at a Large Teaching Hospital in Oman

Cited by 23 publications

References 19 publications

Local diagnostic reference levels for routine chest X-ray examinations at a public sector hospital in central South Africa

Local diagnostic reference levels for routine chest X-ray examinations at a public sector hospital in central South Africa

Estimation of Entrance Surface Dose (Esd) as a Dose Profile for Patients Undergoing Radiography Examination Based on Tube Output Measurement

DICOM format: definition and practical use in vascular medicine

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