Estimates of Average Glandular Dose with Auto-modes of X-ray Exposures in Digital Breast Tomosynthesis
Objectives: The aim of this research was to examine the average glandular dose (AGD) of radiation among different breast compositions of glandular and adipose tissue with auto-modes of exposure factor selection in digital breast tomosynthesis. Methods: This experimental study was carried out in the...
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| Format: | Article |
| Language: | English |
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Sultan Qaboos University
2015-05-01
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| Series: | Sultan Qaboos University Medical Journal |
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| Online Access: | http://web.squ.edu.om/squmj/includes/tng/pub/tNG_download.asp?id=fcd4d407aa135313e33a04551beecbe8 |
| _version_ | 1818064327756742656 |
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| author | Izdihar Kamal Kanaga K. Chelliah Nawal Mustafa |
| author_facet | Izdihar Kamal Kanaga K. Chelliah Nawal Mustafa |
| author_sort | Izdihar Kamal |
| collection | DOAJ |
| description | Objectives: The aim of this research was to examine the average glandular dose (AGD) of radiation among different breast compositions of glandular and adipose tissue with auto-modes of exposure factor selection in digital breast tomosynthesis. Methods: This experimental study was carried out in the National Cancer Society, Kuala Lumpur, Malaysia, between February 2012 and February 2013 using a tomosynthesis digital mammography X-ray machine. The entrance surface air kerma and the half-value layer were determined using a 100H thermoluminescent dosimeter on 50% glandular and 50% adipose tissue (50/50) and 20% glandular and 80% adipose tissue (20/80) commercially available breast phantoms (Computerized Imaging Reference Systems, Inc., Norfolk, Virginia, USA) with auto-time, auto-filter and auto-kilovolt modes. Results: The lowest AGD for the 20/80 phantom with auto-time was 2.28 milliGray (mGy) for two dimension (2D) and 2.48 mGy for three dimensional (3D) images. The lowest AGD for the 50/50 phantom with auto-time was 0.97 mGy for 2D and 1.0 mGy for 3D. Conclusion: The AGD values for both phantoms were lower against a high kilovolt peak and the use of auto-filter mode was more practical for quick acquisition while limiting the probability of operator error. |
| first_indexed | 2024-12-10T14:34:14Z |
| format | Article |
| id | doaj.art-2d977964b21c476388a8837d7e3e0d71 |
| institution | Directory Open Access Journal |
| issn | 2075-051X 2075-0528 |
| language | English |
| last_indexed | 2024-12-10T14:34:14Z |
| publishDate | 2015-05-01 |
| publisher | Sultan Qaboos University |
| record_format | Article |
| series | Sultan Qaboos University Medical Journal |
| spelling | doaj.art-2d977964b21c476388a8837d7e3e0d712022-12-22T01:44:51ZengSultan Qaboos UniversitySultan Qaboos University Medical Journal2075-051X2075-05282015-05-01152e292e296Estimates of Average Glandular Dose with Auto-modes of X-ray Exposures in Digital Breast TomosynthesisIzdihar Kamal0Kanaga K. Chelliah1Nawal Mustafa2Diagnostic Imaging & Radiotherapy Programme, Faculty of Health Sciences, University Kebangsaan Malaysia, Kuala Lumpur, MalaysiaDiagnostic Imaging & Radiotherapy Programme, Faculty of Health Sciences, University Kebangsaan Malaysia, Kuala Lumpur, MalaysiaKPJ Healthcare University College, Nilai, MalaysiaObjectives: The aim of this research was to examine the average glandular dose (AGD) of radiation among different breast compositions of glandular and adipose tissue with auto-modes of exposure factor selection in digital breast tomosynthesis. Methods: This experimental study was carried out in the National Cancer Society, Kuala Lumpur, Malaysia, between February 2012 and February 2013 using a tomosynthesis digital mammography X-ray machine. The entrance surface air kerma and the half-value layer were determined using a 100H thermoluminescent dosimeter on 50% glandular and 50% adipose tissue (50/50) and 20% glandular and 80% adipose tissue (20/80) commercially available breast phantoms (Computerized Imaging Reference Systems, Inc., Norfolk, Virginia, USA) with auto-time, auto-filter and auto-kilovolt modes. Results: The lowest AGD for the 20/80 phantom with auto-time was 2.28 milliGray (mGy) for two dimension (2D) and 2.48 mGy for three dimensional (3D) images. The lowest AGD for the 50/50 phantom with auto-time was 0.97 mGy for 2D and 1.0 mGy for 3D. Conclusion: The AGD values for both phantoms were lower against a high kilovolt peak and the use of auto-filter mode was more practical for quick acquisition while limiting the probability of operator error.http://web.squ.edu.om/squmj/includes/tng/pub/tNG_download.asp?id=fcd4d407aa135313e33a04551beecbe8Thermoluminescent DosimetryBreastMammographyRadiation Dosage |
| spellingShingle | Izdihar Kamal Kanaga K. Chelliah Nawal Mustafa Estimates of Average Glandular Dose with Auto-modes of X-ray Exposures in Digital Breast Tomosynthesis Sultan Qaboos University Medical Journal Thermoluminescent Dosimetry Breast Mammography Radiation Dosage |
| title | Estimates of Average Glandular Dose with Auto-modes of X-ray Exposures in Digital Breast Tomosynthesis |
| title_full | Estimates of Average Glandular Dose with Auto-modes of X-ray Exposures in Digital Breast Tomosynthesis |
| title_fullStr | Estimates of Average Glandular Dose with Auto-modes of X-ray Exposures in Digital Breast Tomosynthesis |
| title_full_unstemmed | Estimates of Average Glandular Dose with Auto-modes of X-ray Exposures in Digital Breast Tomosynthesis |
| title_short | Estimates of Average Glandular Dose with Auto-modes of X-ray Exposures in Digital Breast Tomosynthesis |
| title_sort | estimates of average glandular dose with auto modes of x ray exposures in digital breast tomosynthesis |
| topic | Thermoluminescent Dosimetry Breast Mammography Radiation Dosage |
| url | http://web.squ.edu.om/squmj/includes/tng/pub/tNG_download.asp?id=fcd4d407aa135313e33a04551beecbe8 |
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