8 results on '"3D tomosynthesis"'
Search Results
2. Do automated breast ultrasound and tomosynthesis have an effective role in dense breast evaluation?
- Author
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Engy A. Ali, Fatma Saeed, and Lamiaa Adel
- Subjects
Automated breast 3D ultrasound ,3D tomosynthesis ,Dense breast ,Medical physics. Medical radiology. Nuclear medicine ,R895-920 - Abstract
Abstract Background Mammography plays a great role in reducing breast cancer mortality as it is the standard method of breast imaging and screening. But the accuracy of mammography performance reduces in cancer detection in women with dense breast due to the summation of images and overlapping of breast tissue. ABUS and tomosynthesis both recently help to detect breast cancer in dense breasted women. This prospective study was done in the female imaging unit and approved by its research and ethical committee; all the patients did an informed consent during the period from October 2018 to March 2019. The study was conducted on 38 patients with 38 lesions subjected to digital mammography, tomosynthesis and automated breast ultrasound (ABUS), who all had dense breast in mammography. Results Automated breast ultrasound (ABUS) showed 100% in all sensitivity, specificity, negative predictive value (NPV), positive predictive value (PPV) as well as accuracy, while the digital mammography tomosynthesis showed 100% in specificity, 87.5% in sensitivity, 100% in PPV, 82.4% in NPV and 92.1% accuracy. Conclusion Automated breast ultrasound (ABUS) together with tomosynthesis makes a revolution in breast screening and detecting cancer in women with dense breasts.
- Published
- 2021
- Full Text
- View/download PDF
3. Breast Cancer Screening
- Author
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Golob, Anna, Takahashi, Traci A., Johnson, Kay M., Tilstra, Sarah A., editor, Kwolek, Deborah, editor, Mitchell, Julie L., editor, Dolan, Brigid M., editor, and Carson, Michael P., editor
- Published
- 2020
- Full Text
- View/download PDF
4. Do automated breast ultrasound and tomosynthesis have an effective role in dense breast evaluation?
- Author
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Ali, Engy A., Saeed, Fatma, and Adel, Lamiaa
- Abstract
Background: Mammography plays a great role in reducing breast cancer mortality as it is the standard method of breast imaging and screening. But the accuracy of mammography performance reduces in cancer detection in women with dense breast due to the summation of images and overlapping of breast tissue. ABUS and tomosynthesis both recently help to detect breast cancer in dense breasted women. This prospective study was done in the female imaging unit and approved by its research and ethical committee; all the patients did an informed consent during the period from October 2018 to March 2019. The study was conducted on 38 patients with 38 lesions subjected to digital mammography, tomosynthesis and automated breast ultrasound (ABUS), who all had dense breast in mammography. Results: Automated breast ultrasound (ABUS) showed 100% in all sensitivity, specificity, negative predictive value (NPV), positive predictive value (PPV) as well as accuracy, while the digital mammography tomosynthesis showed 100% in specificity, 87.5% in sensitivity, 100% in PPV, 82.4% in NPV and 92.1% accuracy. Conclusion: Automated breast ultrasound (ABUS) together with tomosynthesis makes a revolution in breast screening and detecting cancer in women with dense breasts. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
5. Revolutionizing Breast Cancer Detection With Artificial Intelligence (AI) in Radiology and Radiation Oncology: A Systematic Review.
- Author
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Rentiya ZS, Mandal S, Inban P, Vempalli H, Dabbara R, Ali S, Kaur K, Adegbite A, Intsiful TA, Jayan M, Odoma VA, and Khan A
- Abstract
The number one cause of cancer in women worldwide is breast cancer. Over the last three decades, the use of traditional screen-film mammography has increased, but in recent years, digital mammography and 3D tomosynthesis have become standard procedures for breast cancer screening. With the advancement of technology, the interpretation of images using automated algorithms has become a subject of interest. Initially, computer-aided detection (CAD) was introduced; however, it did not show any long-term benefit in clinical practice. With recent advances in artificial intelligence (AI) methods, these technologies are showing promising potential for more accurate and efficient automated breast cancer detection and treatment. While AI promises widespread integration in breast cancer detection and treatment, challenges such as data quality, regulatory, ethical implications, and algorithm validation are crucial. Addressing these is essential for fully realizing AI's potential in enhancing early diagnosis and improving patient outcomes in breast cancer management. In this review article, we aim to provide an overview of the latest developments and applications of AI in breast cancer screening and treatment. While the existing literature primarily consists of retrospective studies, ongoing and future prospective research is poised to offer deeper insights. Artificial intelligence is on the verge of widespread integration into breast cancer detection and treatment, holding the potential to enhance early diagnosis and improve patient outcomes., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2024, Rentiya et al.)
- Published
- 2024
- Full Text
- View/download PDF
6. Introductory pictorial atlas of 3D tomosynthesis.
- Author
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Cohen, Stuart L., Margolies, Laurie R., Szabo, Janet R., Patel, Neesha S., and Hermann, George
- Subjects
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MEDICAL imaging systems , *THREE-dimensional imaging , *DIGITAL mammography , *BREAST cancer diagnosis , *EARLY detection of cancer , *DIGITAL diagnostic imaging - Abstract
Mammography is an essential tool for early detection of breast cancer. Breast imaging based on three-dimensional digital breast tomosynthesis (DBT) is a new method for breast cancer screening and diagnosis that uses three-dimensional digital images to allow separation of overlapping breast structures, which may allow for improved visualization of potentially significant findings. This article will highlight the utility of DBT as a tool for the detection of breast pathology; it will demonstrate normal findings as well as breast pathology on DBT and two-dimensional conventional mammography. DBT is a very promising modality, which may decrease the false-positive rate of mammography and find additional abnormalities not seen on two-dimensional mammography. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
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7. Breast Radiation Dose With CESM Compared With 2D FFDM and 3D Tomosynthesis Mammography.
- Author
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James JR, Pavlicek W, Hanson JA, Boltz TF, and Patel BK
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- Adult, Aged, Contrast Media, Humans, Male, Mammography instrumentation, Middle Aged, Organs at Risk radiation effects, Phantoms, Imaging, Radiation Dosage, Radiation Exposure prevention & control, Radiation Exposure statistics & numerical data, Radiation Protection methods, Radiographic Image Enhancement instrumentation, Radiometry, Reproducibility of Results, Sensitivity and Specificity, Tomography, X-Ray Computed instrumentation, Tomography, X-Ray Computed methods, Breast diagnostic imaging, Breast radiation effects, Imaging, Three-Dimensional methods, Mammography methods, Radiation Exposure analysis, Radiographic Image Enhancement methods
- Abstract
Objective: We aimed to compare radiation dose received during contrast-enhanced spectral mammography (CESM) using high- and low-energy projections with radiation dose received during 2D full field digital mammography (FFDM) and 3D tomosynthesis on phantoms and patients with varying breast thickness and density., Materials and Methods: A single left craniocaudal projection was chosen to determine the doses for 6214 patients who underwent 2D FFDM, 3662 patients who underwent 3D tomosynthesis, and 173 patients who underwent CESM in this retrospective study. Dose measurements were also collected in phantoms with composition mimicking nondense and dense breast tissue., Results: Average glandular dose (AGD) ± SD was 3.0 ± 1.1 mGy for CESM exposures at a mean breast thickness of 63 mm. At this thickness, the dose was 2.1 mGy from 2D FFDM and 2.5 mGy from 3D tomosynthesis. The nondense phantom had a mean AGD of 1.0 mGy with 2D FFDM, 1.3 mGy with 3D tomosynthesis, and 1.6 mGy with CESM. The dense breast phantom had a mean AGD of 1.3 mGy with 2D FFDM, 1.4 mGy with 3D tomosynthesis, and 2.1 mGy with CESM. At a compressed thickness of 4.5 cm, radiation exposure from CESM was approximately 25% higher in dense breast phantoms than in nondense breast phantoms. The dose in the dense phantom at a compressed thickness of 6 cm was approximately 42% higher than the dose in the nondense phantom at a compressed thickness of 4.5 cm., Conclusion: CESM was found to increase AGD at a mean breast thickness of 63 mm by approximately 0.9 mGy and 0.5 mGy compared with 2D FFDM and 3D tomosynthesis, respectively. Of note, CESM provides a standard image (similar to 2D FFDM) that is obtained using the low-energy projection. Overall, the AGD from CESM falls below the dose limit of 3 mGy set by Mammography Quality Standards Act regulations.
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- 2017
- Full Text
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8. Breast Cancer Detection on Automated 3D Ultrasound with Co-localized 3D X-ray.
- Author
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Sinha, Sumedha Prashant
- Subjects
- Breast Cancer Detection, Automated 3D Ultrasound, Multi-modality Imaging, 3D Tomosynthesis
- Abstract
X-ray mammography is the gold standard for detecting breast cancer while B-mode ultrasound is employed as its diagnostic complement. This dissertation aimed at acquiring a high quality, high-resolution 3D automated ultrasound image of the entire breast at current diagnostic frequencies, in the same geometry as mammography and its 3D equivalent, digital breast tomosynthesis, and to extend and help test its utility with co-localization. The first objective of this work was to engineer solutions to overcome some challenges inherent in acquiring complete automated ultrasound of the breast and minimizing patient motion during scans. Automated whole-breast ultrasound that can be registered to X-Ray imaging eliminates the uncertainty associated with hand-held ultrasound. More than 170 subjects were imaged using superior coupling agents tested during the course of this study. At least one radiologist rated the usefulness of X-Ray and ultrasound co-localization as high in the majority of our study cases. The second objective was to accurately register tomosynthesis image volumes of the breast, making the detection of tissue growth and deformation over time a realistic possibility. It was found for the first time to our knowledge that whole breast digital tomosynthesis image volumes can be spatially registered with an error tolerance of 2 mm, which is 10% of the average size of cancers in a screening population. The third and final objective involved the registration and fusion of 3D ultrasound image volumes acquired from opposite sides of the breast in the mammographic geometry, a novel technique that improves the volumetric resolution of high frequency ultrasound but poses unique problems. To improve the accuracy and speed of registration, direction-dependent artifacts should be eliminated. Further, it is necessary to identify other regions, usually at greater depths, that contain little or misleading information. Machine learning, principal component analysis and speckle reducing anisotropic diffusion were tested in this context. We showed that machine learning classifiers can identify regions of corrupted data accurately on a custom breast-mimicking phantom, and also that they can identify specific artifacts in-vivo. Initial registrations of phantom image sets with many regions of artifacts removed provided robust results as compared to the original datasets.
- Published
- 2010
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