Mammography Dose Survey Using International Quality Standards

Boujemaa, Soumaya; Bosmans, Hilde; Bentayeb, Farida

doi:10.1016/j.jmir.2019.07.003

Cited by 8 publications

(5 citation statements)

References 23 publications

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“…Due to the development of mammographic equipment and technology, even if the breast thickness increased significantly in the standard MLO view including implant, the radiation dose was not significantly increased compared with ID view (0.97 mGy vs 0.95 mGy, p = 0.0954). Although the radiation dose of each view was not high, the total dose received when the patient took both views was higher than the achievable mean dose for the screening (1.1 ± 0.5 mGy) and some of them exceeded the acceptable dose level of 2.00 mGy 16 . This suggests that obtaining both ID MLO and standard MLO images in breast cancer screening may lead to increase radiation dose without any particular benefits in breast cancer detection.…”

Section: Discussionmentioning

confidence: 80%

Appropriate screening mammography method for patients with breast implants

Park

Han

et al. 2023

Sci Rep

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In this study, we aimed to evaluate the benefits and losses of mammography with and without implant displacement (ID) and propose an appropriate imaging protocol for the screening of breasts with implants. We evaluated mammograms of 162 breasts in 96 patients including 71 breasts with biopsy-proven cancers. Mammography of each breast included standard MLO and ID MLO images. We reviewed the mammograms using clinical image quality criteria, which consist of parameters that evaluate the proper positioning of the breast and the image resolution. Standard MLO images showed significantly higher scores for proper positioning but showed significantly lower scores for image resolution than the ID MLO images. Moreover, standard MLO images showed significantly higher kVp, mAs, and compressed breast thickness than the ID MLO images. The organ dose was also higher in the standard MLO images than in the ID MLO images, but the difference was not statistically significant. In mammography with proven cancer, ID MLO images showed significantly higher degree of cancer visibility than standard MLO images. For screening mammography in patients with breast implants, ID MLO view alone is sufficient for MLO projection with reducing the patient’s radiation dose without compromising the breast cancer detection capability, especially in dense breasts with subpectoral implants.

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Section: Discussionmentioning

confidence: 80%

Appropriate screening mammography method for patients with breast implants

Park

Han

et al. 2023

Sci Rep

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“…Breast cancer is one of the most aggressive tumors and brings the highest incidence of death among women. Screening by means of mammograms is the main means of early detection for the diagnosis of malignant neoplasms of the breast, one of the main causes of death in different countries (XAVIER et al, 2016;CHOI et al, 2018;BOUJEMAA et al, 2019) [11] [12] [13].…”

Section: Discussionmentioning

confidence: 99%

Classification of Mammographic Images by Openvino: A Proposal of use to Enhance More Effectivity in Cancer Diagnosis

Lucca¹,

Santos²

2021

Machine Learning, IOT and Blockchain Technologies &Amp; Trends

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Diseases that are characterized by the disordered growth of cells that, in many cases, have the property of invading tissues and organs are commonly called cancer. Such cells divide quickly and the invasion can be very aggressive and uncontrolled, resulting in formation of malignant tumors Mammographic images from libraries of the American digital database DDSM were used in this research for digital improvement and characteristic analysis using the OpenVino computer program This work has as main objective to analyze mammography images of breast nodules and to propose a method of classification by shape and texture using computer programs that can maximize the accuracy in the correct diagnosis regarding the malignancy or not of a tumor. It is a tool that it can be useful as a contribution in the interpretation of the results to mastologists who identify such nodules through the analyzed radiological images.

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“…For instance, objective IQ assessments involve physics-based assessment such as signal difference to noise ratio, threshold contrast visibility and spatial resolution [7][8][9]. Some studies searched for alternative methods, such as the detectability index to reduce variability in threshold detectability [10] or even introduced the deep learning approach enabling mammography IQ to be estimated reliably using single images [11].…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, while some authors [6,[26][27][28][29] have established national DRLs and radiation exposure levels without considering IQ disregarding the International Commission on Radiological Protection requirement for optimisation [30], others have studied the relationship between patient radiation exposure and IQ during mammography examinations [7][8][9]. However, these investigations primarily relied on objective assessments of IQ.…”

Section: Introductionmentioning

confidence: 99%

Clinical image quality assessment and mean glandular dose for full field digital mammography

Nassar,

Rizk,

Fares

et al. 2024

J. Radiol. Prot.

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This study aims to assess the image quality (IQ) of 12 mammographic units and to identify units with potential optimization needs. Data for 350 mammography examinations meeting inclusion criteria were collected retrospectively from April 2021 to April 2022. They were categorized based on the medical reports into 10 normal cases, 10 cases displaying calcifications and 10 cases presenting lesions. Two radiologists assessed the IQ of 1400 mammograms, evaluating system performance per Boita et al.’s study and positioning performance following European guidelines. To measure agreement between the two radiologists, the Cohen's Kappa coefficient (κ) was computed, quantifying the excess of agreement beyond chance. The Visual Grading Analysis Score (VGAS) was computed to compare system and positioning performance assessments across different categories and facilities. Median AGD values for cranio caudal (CC) and medio lateral oblique (MLO) views were calculated for each category and facility and compared to the national diagnostic reference levels. The health facilities were categorized by considering both IQ VGAS and AGD levels. Inter-rater agreement between radiologists ranged from poor (κ < 0.20) to moderate (0.41 < κ < 0.60), likely influenced by inherent biases and distinct IQ expectations. 50% of the facilities were classified as needing corrective actions for their system performance as they had low IQ or high AGD that could increase recall rate and radiation risk and 50% of the health facilities exhibited insufficient positioning performance that could mask tumor masses and microcalcifications. The study's findings emphasize the importance of implementing quality assurance programs to ensure optimal IQ for accurate diagnoses while adhering to radiation exposure guidelines. Additionally, comprehensive training for technologists is essential to address positioning challenges. These initiatives collectively aim to enhance the overall quality of breast imaging services, contributing to improved patient care.

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Mammography Dose Survey Using International Quality Standards

Cited by 8 publications

References 23 publications

Appropriate screening mammography method for patients with breast implants

Appropriate screening mammography method for patients with breast implants

Classification of Mammographic Images by Openvino: A Proposal of use to Enhance More Effectivity in Cancer Diagnosis

Clinical image quality assessment and mean glandular dose for full field digital mammography

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