Local diagnostic reference levels for digital mammography: Two hospitals study in northwest, Nigeria

Garba, Ibrahim; Bashir, H.S.; Bello, Fábio Dal; Nuhu, K.S.; Mohammed, S.; Mansur, Y.; Yusuf, Lukman

doi:10.1016/j.jmir.2021.03.035

Cited by 4 publications

(1 citation statement)

References 14 publications

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“…This makes it difficult to establish local DRLs for mammography in Dubai, which is crucial to ensure that patients receive a safe dose of radiation during mammography procedures. Although there are some studies on establishing local DRLs for mammography in other countries around the United Arab Emirates, such as Australia, Malaysia, and Nigeria [ 9 , 10 , 11 , 12 ], these studies may not be applicable due to differences in patient populations, equipment, and protocols. Therefore, there is a need for a study to determine local DRLs for mammography in Dubai to ensure that patients receive the appropriate dose of radiation during mammography procedures.…”

Section: Introductionmentioning

confidence: 99%

Estimating Local Diagnostic Reference Levels for Mammography in Dubai

Abdulwahid Noor,

Mohd Norsuddin,

Abdul Karim

et al. 2023

Diagnostics

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As the total volume of mammograms in Dubai is increasing consistently, it is crucial to focus on the process of dose optimization by determining dose reference levels for such sensitive radiographic examinations as mammography. This work aimed to determine local diagnostic reference levels (DRLs) for mammography procedures in Dubai at different ranges of breast thickness. A total of 2599 anonymized mammograms were randomly retrieved from a central dose survey database. Mammographic cases for screening women aged from 40 to 69 years were included, while cases of breast implants and breast thickness outside the range of 20–100 mm were excluded. Mean, median, and 75 percentiles were obtained for the mean glandular dose (MGD) distribution of each mammography projection for all compressed breast thickness (CBT) ranges. The local DRLs for mammography in Dubai were found to be between 0.80 mGy and 0.82 mGy for the craniocaudal (CC) projection and between 0.89 mGy and 0.971.8 mGy for the mediolateral oblique (MLO) projection. Local DRLs were proposed according to different breast thicknesses, starting from 20 to 100 mm. All groups of CBT showed a slight difference in MGD values, with higher values in MLO views rather than CC views. The local DRLs in this study were lower than some other Middle Eastern countries and lower than the standard reference levels reported by the International Atomic Energy Agency (IAEA) at 3 mGy/view.

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Section: Introductionmentioning

confidence: 99%

Estimating Local Diagnostic Reference Levels for Mammography in Dubai

Abdulwahid Noor,

Mohd Norsuddin,

Abdul Karim

et al. 2023

Diagnostics

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Establishment of national diagnostic reference levels for full field digital mammography and digital breast tomosynthesis in Lebanon

Nassar,

Rizk,

Farah

et al. 2023

Radioprotection

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This study aims to establish Lebanese national diagnostic reference levels (NDRLs) for full field digital mammography (FFDM) and digital breast tomosynthesis (DBT). Data were collected from 34% of the total number of health facilities with FFDM and/or DBT units in Lebanon. NDRLs were set as the third quartile of mammography units’ median value of average glandular dose (AGD). NDRLs for different compressed breast thickness (CBT) and age groups were also proposed. Statistical analysis were performed to test the difference of AGD between cranio caudal (CC) and medio lateral oblique (MLO) views, FFDM and DBT, and AGD across health facilities, CBT and age groups. Data from 2803 women with a total of 10462 images were included in the study. For FFDM and DBT, NDRLs for CC and MLO views were equal to 1.85 and 2.24 mGy, and 2.65 and 3.04 mGy, respectively. Lebanese NDRLs were higher than most published DRLs while remaining below the European Commission’s maximum acceptable dose level (2.5 mGy) for FFDM. AGD increased significantly (p < 0.05) with the increase in CBT for both views and techniques. This first set of mammography DRLs reveals the need for optimizing the radiation exposure in Lebanon and will serve as a national/international benchmark.

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Radiation dose to breast during digital mammography in Tanzania

Edmund,

Kamuzora,

Muhogora

et al. 2024

Radiation Protection Dosimetry

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The aim of this study was to evaluate the mean glandular dose (MGD), to assess the potential for optimization, and to propose diagnostic reference levels (DRLs). MGD was estimated from air kerma measurements and patient information collected during mammography examinations. The 75th percentile values were determined as the third quartile of the median MGD values for all hospitals, and DRLs set as 75th percentile of MGD values. The estimated median values of MGD ranged from 1.5 to 3.9 mGy for craniocaudal projection for median range of 15–59 mm compressed breast thickness (CBT). For a CBT range of 15–63 mm, the median MGD value was 1.5–5.1 mGy for medio-lateral oblique projection. Comparison with other studies showed that the MGD values obtained in this study were relatively high. The magnitude and wide variation of the exposure parameters suggest existing potential for optimization. The training of radiology staff was identified as a top priority.

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Local diagnostic reference levels for digital mammography: Two hospitals study in northwest, Nigeria

Cited by 4 publications

References 14 publications

Estimating Local Diagnostic Reference Levels for Mammography in Dubai

Estimating Local Diagnostic Reference Levels for Mammography in Dubai

Establishment of national diagnostic reference levels for full field digital mammography and digital breast tomosynthesis in Lebanon

Radiation dose to breast during digital mammography in Tanzania

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