Local Diagnostic Reference Levels for Full-Field Digital Mammography and Digital Breast Tomosynthesis in a Tertiary Hospital in Malaysia

Norsuddin, Norhashimah Mohd; Segar, Sharveeni; Ravintaran, Rathieswari; Zain, Norhayati Mohd; Karim, Muhammad Khalis Abdul

doi:10.3390/healthcare10101917

Cited by 7 publications

(7 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The national DRL in the current study was comparable with those in Malaysia [19]. However, most countries set their DRLs for a single narrow CBT range as in Malta which was set at a CBT range of 50-70mm, while Sudan [30], and Ireland [31] set their DRLs at 55-65mm CBT range The comparison of DRLs with those of other countries is therefore challenging due to the lack of a standard CBT range used for setting the DRLs.…”

Section: Discussionsupporting

confidence: 70%

“…AGD relationship with the exposure factors (kVp, mAs), ESD, CBT and Breast Compression Force (BCF) was tested using a Pearson correlation coefficient test and presented in the table form. The values of the CBT were grouped into three categories of a narrow range which were representative of CBT for the Ugandan women population as recommended by ICRP number 135 for every country to determine their women’s CBT ranges [11, 19].…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

National diagnostic reference levels for digital diagnostic and screening mammography in Uganda

Odongo,

Musisi,

Okello

et al. 2023

Preprint

View full text Add to dashboard Cite

IntroductionScreening and diagnostic mammography are associated with some risk of radiation-induced breast cancer. This study was conducted to establish the National Diagnostic Reference Levels (NDRLs) for digital diagnostic and screening mammography in Uganda to achieve breast radiation dose optimization.MethodsA cross-sectional study was conducted among female participants recruited by a consecutive sampling from three selected Hospitals with digital mammography in Uganda. The study variables extracted from the mammography machines were exposure factors, compressed breast thickness (CBT), and Average Glandular Dose (AGD) of two standard mammogram views. The stratified National DRL was derived by calculating 75thpercentile of the AGD across all the samples at various CBT ranges for both screening and diagnostic mammography in craniocaudal (CC) and mediolateral oblique (MLO) views.ResultsWe included 300 participants with mean ages of 50.28±9.32 and 47.45±13.45 years for the screening and diagnostic mammography, respectively. There were statistically significant positive correlations between AGD and exposures factors (mAs, kVp) (all p-values<0.0001). For screening mammography, mAs demonstrated a strong positive correlation (r = 0.8369 in CC, 0.8133 in MLO), whereas kVp showed positive correlation with relatively lower coefficients (r = 0.3700 in CC, 0.3080 in MLO). In diagnostic mammography, mAs exhibited an even stronger positive correlation (r = 0.8987 in CC, 0.8762 in MLO), and kVp maintained a positive correlation with somewhat lower coefficients (r = 0.4954 in CC, 0.3597 in MLO). In screening mammography, for CBT within the range of (7-39)mm, the NDRLs were (1.5mGy, 1.66mGy) in CC) and MLO views. For CBT in the range of (40-59)mm, the NDRLs were (1.78mGy, 1.87mGy), and for CBT in the range of (60-99)mm, the NDRLs were (2.18mGy, 2.22mGy). For diagnostic mammography, the NDRLs were established as (1.7mGy, 1.91mGy), (2.00mGy, 2.09mGy), and (2.63mGy, 2.81mGy) for CBT ranges of (7-39)mm, (40-59)mm, and (60-99)mm, respectively.ConclusionThe NDRLs for digital screening and diagnostic mammography in Uganda have been proposed for the first time. The NDRL values in mammography should be specific to CBT ranges and mammographic views for both diagnostic and screening mammography.

show abstract

Section: Discussionsupporting

confidence: 70%

Section: Methodsmentioning

confidence: 99%

National diagnostic reference levels for digital diagnostic and screening mammography in Uganda

Odongo,

Musisi,

Okello

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…The study found that the DRLs for mammography varied widely among countries, ranging from 1.5 to 3.5 mGy [ 17 , 27 ]. For example, in Malaysia, the local DRLs for full-field digital mammography (FFDM) and digital breast tomosynthesis (DBT) were established at different CBT ranges, with DBT having significantly higher AGD than FFDM [ 11 ]. In Thailand, the local DRLs for FFDM and DBT were found to be 1.65 mGy and 1.89 mGy, respectively, and were lower than the standard reference levels reported by the IAEA [ 28 ].…”

Section: Discussionmentioning

confidence: 99%

“…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%

See 1 more Smart Citation

Estimating Local Diagnostic Reference Levels for Mammography in Dubai

Abdulwahid Noor,

Mohd Norsuddin,

Abdul Karim

et al. 2023

Diagnostics

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Demonstration of Japanese radiographic examination codes in establishing typical values for a wide variety of general radiography examinations

Yagahara,

Ando,

Oda

2024

Sci Rep

View full text Add to dashboard Cite

The purpose of this study was to demonstrate Japanese radiographic examination codes JJ1017 in establishing typical values for a wide variety of general radiography. About 200,000 sets of examination data were collected, including exposure conditions, JJ1017 code applied, examination room numbers and patient information. Typical values for adults, children, and infants were calculated from the collected data, and the following items were examined: comparing typical values of general radiography in Japan DRLs 2015 and typical values in a facility; comparison of typical values between X-ray equipment for examinations of DRLs 2015; comparison of typical values for different procedures at the same anatomical site; identification of examination items associated with high radiation doses. The total numbers of JJ1017 codes applicable to the examinations were 45,372 for adults, 542 for children, and 2339 for infants. To calculate the typical values and compare these with the DRLs, we used a combination of JJ1017 anatomical codes, posture codes, and direction of radiation codes. The combination of these codes allowed the calculation of a typical value and comparison with DRLs 2015. Comparison between devices reveals differences in radiation doses and provides an opportunity to review the characteristics of the devices and their operation to suggest dose reductions. By calculating typical values for examination items for which the DRLs were not available, we were able to identify examination items with high doses in a facility and suggest items that should be audited in the facility.

show abstract

Local Diagnostic Reference Levels for Full-Field Digital Mammography and Digital Breast Tomosynthesis in a Tertiary Hospital in Malaysia

Cited by 7 publications

References 25 publications

National diagnostic reference levels for digital diagnostic and screening mammography in Uganda

National diagnostic reference levels for digital diagnostic and screening mammography in Uganda

Estimating Local Diagnostic Reference Levels for Mammography in Dubai

Demonstration of Japanese radiographic examination codes in establishing typical values for a wide variety of general radiography examinations

Contact Info

Product

Resources

About