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Ebrahimi-Khankook A, Vejdani-Noghreiyan A, Khodajou-Chokami H, Abbasi-Khiabani Z. Designing an improved model of the adult female ICRP reference phantom dedicated to mammography procedure. JOURNAL OF RADIOLOGICAL PROTECTION : OFFICIAL JOURNAL OF THE SOCIETY FOR RADIOLOGICAL PROTECTION 2024; 44:021525. [PMID: 38688247 DOI: 10.1088/1361-6498/ad455e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 04/30/2024] [Indexed: 05/02/2024]
Abstract
Mammography is an x-ray-based imaging method to examine breast abnormalities. Since low-energy photons are used in mammography, doses to different organs would depend strongly on the phantom posture and anatomy. Until now, a few studies have been performed on doses delivered to different organs during mammography. However, in none of them, the correct posture of the patient has been considered. In the present study, the effect of accurate patient positioning, on doses to organs in the chest region were investigated through Monte Carlo simulations. The results show the rotation of the phantom head, may affect organ doses up to 60%. Also, ignoring the head in dosimetry calculations changes scattering effects and causes dose uncertainty of about 8% for these organs. Moreover, according to the obtained results, not compressing the breast causes serious dose misestimation. Finally, using developed phantoms dedicated for mammography, total doses received by different organs have been calculated for the tube voltages of 25, 28, 30 and 35 kVp and for craniocaudal and mediolateral oblique views.
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Affiliation(s)
| | | | - Hamidreza Khodajou-Chokami
- Department of Radiological Sciences, University of California, Irvine, CA 92697, United States of America
- Biomedical Engineering Group, Department of Electrical Engineering, Sharif University of Technology, Tehran, Iran
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Norsuddin NM, Mei Sin JG, Ravintaran R, Arasaratnam S, Abdul Karim MK. Impact of age and breast thickness on mean glandular dose of standard digital mammography and digital breast tomosynthesis. Appl Radiat Isot 2023; 192:110525. [PMID: 36436228 DOI: 10.1016/j.apradiso.2022.110525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 09/28/2022] [Accepted: 10/18/2022] [Indexed: 01/04/2023]
Abstract
This study compares the mean glandular dose (MGD) across 2D, 3D projection and Contrast-Enhanced Digital Mammography (CEDM) mammographic techniques. The important metadata were extracted from the digital mammography console. 650 subjects were clustered based on projections, age and CBT. The MGD of 2D, 3D, and CEDM was positively correlated with CBT but inversely correlated with the age factor. This study indicate MGD of CEDM was 16% and 22% lower compared to 2D and 3D techniques, respectively.
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Affiliation(s)
- Norhashimah Mohd Norsuddin
- Department of Diagnostic & Applied Health Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, 56000, Malaysia
| | - Justine Go Mei Sin
- Department of Diagnostic & Applied Health Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, 56000, Malaysia
| | - Rathieswari Ravintaran
- Department of Diagnostic & Applied Health Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, 56000, Malaysia
| | - Shantini Arasaratnam
- Department of Radiology, Hospital Kuala Lumpur, Jalan Pahang, Kuala Lumpur, 50586, Malaysia
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Lee DY, Jo YI, Yang SH. Development of breast phantoms using a 3D printer and glandular dose evaluation. J Appl Clin Med Phys 2021; 22:270-277. [PMID: 34529348 PMCID: PMC8504594 DOI: 10.1002/acm2.13408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 07/04/2021] [Accepted: 08/16/2021] [Indexed: 11/29/2022] Open
Abstract
In this study, breast phantoms were fabricated by emulating glandular and adipose tissues separately using a three‐dimensional (3D) printer. In addition, direct and quantitative glandular dose evaluations were performed. A quantitative method was developed to evaluate the glandular and adipose tissues separately when performing glandular dose evaluations. The variables used for glandular dose evaluation were breast thickness, glandular tissue ratio, and additional filter materials. The values obtained using a Monte Carlo simulation and those measured using a glass dosimeter were compared and analyzed. The analysis showed that as the glandular tissue ratio increased, the dose decreased by approximately 10%, which is not a significant variation. The comparison revealed that the simulated values of the glandular dose were approximately 15% higher than the measured values. The use of silver and rhodium filters resulted in a mean simulated dose of 1.00 mGy and 0.72 mGy, respectively, while the corresponding mean measured values were 0.89 mGy ± 0.03 mGy and 0.62 mGy ± 0.02 mGy. The mean glandular dose can be reliably evaluated by comparing the simulated and measured values.
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Affiliation(s)
- Dong-Yeon Lee
- Department of Radiological Science, College of Nursing, Health Sciences and Human Ecology, Dong-Eui University, Busan, Republic of Korea
| | - Yong-In Jo
- Dongnam Institute of Radiological and Medical Sciences, Busan, Republic of Korea
| | - Sung-Hee Yang
- Department of Radiological Science, College of Health Sciences, Catholic University of Pusan, Busan, Republic of Korea
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Vairavan R, Abdullah O, Retnasamy PB, Sauli Z, Shahimin MM, Retnasamy V. A Brief Review on Breast Carcinoma and Deliberation on Current Non Invasive Imaging Techniques for Detection. Curr Med Imaging 2020; 15:85-121. [PMID: 31975658 DOI: 10.2174/1573405613666170912115617] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 08/27/2017] [Accepted: 08/29/2017] [Indexed: 12/22/2022]
Abstract
BACKGROUND Breast carcinoma is a life threatening disease that accounts for 25.1% of all carcinoma among women worldwide. Early detection of the disease enhances the chance for survival. DISCUSSION This paper presents comprehensive report on breast carcinoma disease and its modalities available for detection and diagnosis, as it delves into the screening and detection modalities with special focus placed on the non-invasive techniques and its recent advancement work done, as well as a proposal on a novel method for the application of early breast carcinoma detection. CONCLUSION This paper aims to serve as a foundation guidance for the reader to attain bird's eye understanding on breast carcinoma disease and its current non-invasive modalities.
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Affiliation(s)
- Rajendaran Vairavan
- School of Microelectronic Engineering, Universiti Malaysia Perlis, Pauh Putra Campus, 02600 Arau, Perlis, Malaysia
| | - Othman Abdullah
- Hospital Sultan Abdul Halim, 08000 Sg. Petani, Kedah, Malaysia
| | | | - Zaliman Sauli
- School of Microelectronic Engineering, Universiti Malaysia Perlis, Pauh Putra Campus, 02600 Arau, Perlis, Malaysia
| | - Mukhzeer Mohamad Shahimin
- Department of Electrical and Electronic Engineering, Faculty of Engineering, National Defence University of Malaysia (UPNM), Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia
| | - Vithyacharan Retnasamy
- School of Microelectronic Engineering, Universiti Malaysia Perlis, Pauh Putra Campus, 02600 Arau, Perlis, Malaysia
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Liu YL, Chang SJ, Lin FY, Chang TY, Wu J. Suborgan breast dosimetry for breast nuclear medicine imaging using anthropomorphic software breast phantoms. Radiat Phys Chem Oxf Engl 1993 2020. [DOI: 10.1016/j.radphyschem.2019.108488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Normalized glandular dose coefficients in mammography, digital breast tomosynthesis and dedicated breast CT. Phys Med 2018; 55:142-148. [DOI: 10.1016/j.ejmp.2018.09.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 09/03/2018] [Accepted: 09/10/2018] [Indexed: 12/15/2022] Open
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Massera RT, Tomal A. Skin models and their impact on mean glandular dose in mammography. Phys Med 2018; 51:38-47. [DOI: 10.1016/j.ejmp.2018.04.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 03/29/2018] [Accepted: 04/08/2018] [Indexed: 12/20/2022] Open
Affiliation(s)
- Rodrigo Trevisan Massera
- Instituto de Física "Gleb Wataghin", Universidade Estadual de Campinas, 13083-859 Campinas, Brazil
| | - Alessandra Tomal
- Instituto de Física "Gleb Wataghin", Universidade Estadual de Campinas, 13083-859 Campinas, Brazil.
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Tsigginou A, Gkali C, Chalazonitis A, Feida E, Vlachos DE, Zagouri F, Rellias I, Dimitrakakis C. Adding the power of iodinated contrast media to the credibility of mammography in breast cancer diagnosis. Br J Radiol 2016; 89:20160397. [PMID: 27452266 DOI: 10.1259/bjr.20160397] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Dual-energy contrast-enhanced spectral mammography (CESM) represents a relatively new diagnostic tool adjunct to mammography. The aim of this study was to strengthen the breast imaging-reporting and data system (BIRADS) classification score in order to improve early breast cancer diagnosis. For this reason, we propose a sum score, termed malignancy potential score (MPS), incorporating the standard BIRADS score and our proposed CESM score. From September 2014 to September 2015, 216 females (age range, 26-85 years; mean age 54.6 years) underwent CESM evaluation of mammographic findings that were primarily assessed as BIRADS 2-5. 10 of these patients had bilateral findings; a total of 226 lesions were examined. High-energy image evaluation was based on the intensity of contrast enhancement of the lesion compared with background enhancement, categorized as Type -1, 0, 1 or 2 enhancement. Histopathology reports were compared with imaging assessment. 98 of 226 lesions were malignant and 128 of 226 lesions were benign. The area under the curve was 0.843, 0.888 and 0.917 for mammographic BIRADS score, CESM score and MPS, respectively, with p-value < 0.05. The sensitivity, specificity and accuracy rates were 91.83, 80.47 and 85.40%, respectively, when a best MPS cut-off point of 4 was used. The malignancy potential score (MPS) has higher diagnostic performance than digital mammography or CESM alone. MPS empowers the credibility of the digital mammography BIRADS score and our proposed type of enhancement in dual-energy CESM and is a diagnostic tool that increases the accuracy rate in early breast cancer diagnosis.
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Affiliation(s)
- Alexandra Tsigginou
- 1 Breast Unit, 1st Department of Ob/Gyn Athens University Medical School, Alexandra Hospital, Athens, Greece
| | - Christina Gkali
- 2 Department of Radiology, Alexandra Hospital, Athens, Greece
| | | | - Eleni Feida
- 2 Department of Radiology, Alexandra Hospital, Athens, Greece
| | - Dimitrios Efthymios Vlachos
- 3 Gynecological Oncology Unit, 1st Department of Ob/Gyn Athens University Medical School, Alexandra Hospital, Athens, Greece
| | - Flora Zagouri
- 4 Department of Clinical Therapeutics, Alexandra Hospital, University of Athens
| | - Ioannis Rellias
- 1 Breast Unit, 1st Department of Ob/Gyn Athens University Medical School, Alexandra Hospital, Athens, Greece
| | - Constantine Dimitrakakis
- 1 Breast Unit, 1st Department of Ob/Gyn Athens University Medical School, Alexandra Hospital, Athens, Greece
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Tsapaki V, Bayford R. Medical Physics: Forming and testing solutions to clinical problems. Phys Med 2015; 31:738-40. [PMID: 26145462 DOI: 10.1016/j.ejmp.2015.05.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 05/30/2015] [Indexed: 11/16/2022] Open
Abstract
According to the European Federation of Organizations for Medical Physics (EFOMP) policy statement No. 13, "The rapid advance in the use of highly sophisticated equipment and procedures in the medical field increasingly depends on information and communication technology. In spite of the fact that the safety and quality of such technology is vigorously tested before it is placed on the market, it often turns out that the safety and quality is not sufficient when used under hospital working conditions. To improve safety and quality for patient and users, additional safeguards and related monitoring, as well as measures to enhance quality, are required. Furthermore a large number of accidents and incidents happen every year in hospitals and as a consequence a number of patients die or are injured. Medical Physicists are well positioned to contribute towards preventing these kinds of events". The newest developments related to this increasingly important medical speciality were presented during the 8th European Conference of Medical Physics 2014 which was held in Athens, 11-13 September 2014 and hosted by the Hellenic Association of Medical Physicists (HAMP) in collaboration with the EFOMP and are summarized in this issue.
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Affiliation(s)
- Virginia Tsapaki
- Medical Physics Unit, Konstantopoulio General Hospital, Agias Olgas 3-5, 14233 Nea Ionia, Greece.
| | - Richard Bayford
- Director of Biophysics at the Middlesex University, Centre for Investigative Oncology, Middlesex University, The Burroughs, Hendon, London NW4 4BT, UK.
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