Average Glandular Dose in Digital Mammography and Breast Tomosynthesis

Olğar, Turan; Kahn, Thomas; Gosch, D.

doi:10.1055/s-0032-1312877

Cited by 59 publications

(51 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It was evident that AGD from DBT was lower than that for FFDM. Which is similar to the study of Svahn TM etal but controversial to the study of Olgar T etal [3] . Further AGD was reduced by 55.3% by using DBT with compared to TAGD, using both FFDM and DBT together for same patient and AGD was reduced 19.19% by using DBT with compared to AGD from FFDM.…”

Section: Discussion:-supporting

confidence: 77%

Evaluation of Agd in Digital Breast Tomosynthesis Relative to Those in Two-View-Full-Field Digital Mammography.

Niroshani¹,

Hathurusinghe²,

Tudugala³

2017

IJAR

View full text Add to dashboard Cite

Digital Breast Tomosynthesis (DBT) is performing in high resolution limited angle tomography at radiographic dose levels. Advanced system facilitates the DBT along with 2 view Full Field Digital mammography (FFDM). The objectives of this study were to compare the Average Glandular Dose (AGD) ofDBT and FFDM and tocalculate the percentage of radiation dose reduction when using DBT with compare toFFDM. The study was carried out using data base of DBTsystem in a private hospital. In the investigation we analyzed dose of 251 patients who underwent mammographic examinations of both FFDM and DBT. All data analyses were done using IBM SPSS statistical software version 20.0.P-value 0.05 was considered as statistically significant. The explanatory variables were age, breast thickness, kVp, mAs, target/filter combination, and AGD values of DBT and FFDM. Mean values for the patient age and compressed breast thickness were 50 years and 49 mm(±11.9SD) respectively. The majority of the images were acquired using W/Rh target/filter combination and 51% patients came for the diagnostic mammograms and 49% for screening mammograms. A wide kVp range was observed for DBT than FFDM while mAs range was lower in DBT.According to the results total average glandular dose (TAGD) from FFDM and DBT for diagnostic was 4.21mGy (±1.46SD), for screening 4.04(±1.31SD) andthere was a statistically significant difference between mean values of TAGD. MeanAGD forMediolataral Oblique (MLO) view in DBT was 2.05mGy(±0.60SD), in FFDM 2.73mGy(±1.02SD).AGD for Craniocadal (CC) view in DBT was 1.63mGy(±0.36SD) and for FFDM it was 1.83mGy(±0.66SD).AGDto the breast from DBT was significantly lower than that for FFDM while range was lower in FFDM than DBT. There was a significant difference between mean values of CC and MLO views in DBT and FFDM (P<0.05). It was evident that AGD from DBT was lower than that for FFDMfurther AGD was reduced by 55.3% by using DBT with compared to TAGD,

show abstract

Section: Discussion:-supporting

confidence: 77%

Evaluation of Agd in Digital Breast Tomosynthesis Relative to Those in Two-View-Full-Field Digital Mammography.

Niroshani¹,

Hathurusinghe²,

Tudugala³

2017

IJAR

View full text Add to dashboard Cite

show abstract

“…For screening, the additional radiation associated with tomosynthesis (equivalent to 1.4 mammography films) [51] should also be considered. A dosimetric study carried out on our machine showed that the dose of one tomosynthesis incidence was identical to one standard mammography film [52].…”

Section: Discussionmentioning

confidence: 99%

The role of tomosynthesis in breast cancer staging in 75 patients

Mercier

Kwiatkowski

Abrial

et al. 2015

Diagnostic and Interventional Imaging

View full text Add to dashboard Cite

show abstract

“…Included in the research database were deidentified mammography and tomosynthesis images, imaging reports, and surgical pathology results if an image-guided biopsy and/or surgery was performed. Inclusion criteria for this study were (a) the availability of the tomosynthesis in combination with FFDM increases radiation dose above that of FFDM alone, roughly by a factor of two (21,22). Despite the improvements in accuracy found to date by using combined tomosynthesis and FFDM, the increased radiation dose to the patient is of concern.…”

Section: Case Selectionmentioning

confidence: 99%

Comparison of Two-dimensional Synthesized Mammograms versus Original Digital Mammograms Alone and in Combination with Tomosynthesis Images

Zuley¹,

Guo²,

Catullo³

et al. 2014

Radiology

180

112

View full text Add to dashboard Cite

Purpose:To assess interpretation performance and radiation dose when two-dimensional synthesized mammography (SM) images versus standard full-field digital mammography (FFDM) images are used alone or in combination with digital breast tomosynthesis images. Materials and Methods:A fully crossed, mode-balanced multicase (n = 123), multireader (n = 8), retrospective observer performance study was performed by using deidentified images acquired between 2008 and 2011 with institutional review board approved, HIPAA-compliant protocols, during which each patient signed informed consent. The cohort included 36 cases of biopsy-proven cancer, 35 cases of biopsy-proven benign lesions, and 52 normal or benign cases (Breast Imaging Reporting and Data System [BI-RADS] score of 1 or 2) with negative 1-year follow-up results. Accuracy of sequentially reported probability of malignancy ratings and seven-category forced BI-RADS ratings was evaluated by using areas under the receiver operating characteristic curve (AUCs) in the random-reader analysis. Results:Probability of malignancy-based mean AUCs for SM and FFDM images alone was 0.894 and 0.889, respectively (difference, 20.005; 95% confidence interval [CI]: 20.062, 0.054; P = .85). Mean AUC for SM with tomosynthesis and FFDM with tomosynthesis was 0.916 and 0.939, respectively (difference, 0.023; 95% CI: 20.011, 0.057; P = .19). In terms of the reader-specific AUCs, five readers performed better with SM alone versus FFDM alone, and all eight readers performed better with combined FFDM and tomosynthesis (absolute differences from 0.003 to 0.052). Similar results were obtained by using a nonparametric analysis of forced BI-RADS ratings.

show abstract

Average Glandular Dose in Digital Mammography and Breast Tomosynthesis

Abstract: In this study the mean calculated AGD per exposure in 3 D imaging mode was on average 34% higher than for 2 D imaging mode for patients examined with the same CBT.

Cited by 59 publications

References 12 publications

Evaluation of Agd in Digital Breast Tomosynthesis Relative to Those in Two-View-Full-Field Digital Mammography.

Evaluation of Agd in Digital Breast Tomosynthesis Relative to Those in Two-View-Full-Field Digital Mammography.

The role of tomosynthesis in breast cancer staging in 75 patients

Comparison of Two-dimensional Synthesized Mammograms versus Original Digital Mammograms Alone and in Combination with Tomosynthesis Images

Contact Info

Product

Resources

About