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Digital mammography

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https://www.readbyqxmd.com/read/28535623/-the-breast-cancer-diagnosis-accuracy-of-the-digital-breast-tomosynthesis-technique
#1
H W Zhang, J T Li, M H Lü, L Qin, L F Li, S D Cui, H Liu
Objective: To explore the Digital breast tomosynthesis technique (DBT) in breast cancer diagnosis accuracy. Methods: Choose 263 cases of patients with breast lesions, using DBT combined FFDM (Full field digital mammography) independent FFDM, evaluate the diagnostic accuracy of breast cancer. Results: The ROC curve area (AUC) of two kinds of breast cancer diagnosis methods (DBT combined FFDM and independent FFDM) were 0.954±0.014 and 0.907±0.019, with significant difference (P=0.000 3). In premenopausal patients and breast density ACR3-4 cases, DBT combined FFDM diagnosis accuracy is higher than FFDM alone group, with significant difference (P<0...
May 16, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28530138/review-and-management-of-breast-lesions-detected-with-breast-tomosynthesis-but-not-visible-on-mammography-and-ultrasonography
#2
Fusun Taskin, Yasemin Durum, Aykut Soyder, Alparslan Unsal
Background Breast tomosynthesis is more sensitive than mammography and can detect lesions that are not always visible with conventional methods such as digital mammography (MG) and ultrasonography (US). No standardized approach is available for the management of lesions that are detectable with tomosynthesis but are not visible on MG or US. Purpose To review suspicious breast lesions detected with tomosynthesis but not visible on two-dimensional (2D) MG or US and to determine the management options for these lesions...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28523569/effect-of-age-on-breast-cancer-screening-using-tomosynthesis-in-combination-with-digital-mammography
#3
Elizabeth A Rafferty, Stephen L Rose, Dave P Miller, Melissa A Durand, Emily F Conant, Debra S Copit, Sarah M Friedewald, Donna M Plecha, Ingrid L Ott, Mary K Hayes, Kara L Carlson, Thomas M Cink, Lora D Barke, Linda N Greer, Loren T Niklason
PURPOSE: To determine the effect of tomosynthesis imaging as a function of age for breast cancer screening. METHODS: Screening performance metrics from 13 institutions were examined for 12 months prior to introduction of tomosynthesis (period 1) and compared to those after introduction of tomosynthesis (period 2, range 3-22 months). Screening metrics for women ages 40-49, 50-59, 60-69, and 70+ , included rates per 1000 screens for recalls, biopsies, cancers, and invasive cancers detected...
May 18, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28516226/benefit-of-adding-digital-breast-tomosynthesis-to-digital-mammography-for-breast-cancer-screening-focused-on-cancer-characteristics-a-meta-analysis
#4
REVIEW
Seong Jong Yun, Chang-Woo Ryu, Sun Jung Rhee, Jung Kyu Ryu, Ji Young Oh
PURPOSE: We evaluated the benefit of adding digital breast tomosynthesis (DBT) to full-field digital mammography (FFDM) compared to FFDM alone for breast cancer detection, focusing on cancer characteristics. METHODS: We searched electronic databases and relevant references for published studies comparing DBT plus FFDM to FFDM alone for breast cancer screening. Pooled risk ratios (RRs) for various pathologic findings were determined using random effects models. RESULTS: Eleven eligible studies were included...
May 18, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28508724/the-impact-of-simulated-motion-blur-on-lesion-detection-performance-in-full-field-digital-mammography
#5
Ahmed K Abdullah, John D Thompson, Claire E Mercer, Rob Aspin, Judith Kelly, Peter Hogg
OBJECTIVE: Motion blur is a known phenomenon in full-field digital mammography, but the impact on lesion detection is unknown. This is the first study to investigate detection performance with varying magnitudes of simulated motion blur. METHOD: Seven observers (15±5 years' reporting experience) evaluated 248 cases (62 containing malignant masses, 62 containing malignant microcalcifications and 124 normal cases) for three conditions: no blurring (0 mm) and two magnitudes of simulated blurring (0...
May 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28508466/comparison-of-the-time-taken-for-localised-breast-surgery-pre-and-post-introduction-of-intra-operative-digital-specimen-mammography
#6
Vinicius Carraro do Nascimento, Anita G Bourke
INTRODUCTION: More than half of the patients with an impalpable malignant breast lesion have a mammographically detected and imaged-guided localisation, which can be technically challenging for the breast surgeon. Specimen imaging is used to confirm successful excision of the localised index lesion and has improved the operating list efficiency resulting in a higher number of excisions per surgical list. The aim of this study was to evaluate whether introducing IDSM (intra-operative digital specimen mammography) saved operation time for localised breast surgery...
May 16, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28504593/comparison-between-digital-and-synthetic-2d-mammograms-in-breast-density-interpretation
#7
Taghreed I Alshafeiy, Antoine Wadih, Brandi T Nicholson, Carrie M Rochman, Heather R Peppard, James T Patrie, Jennifer A Harvey
OBJECTIVE: The purpose of this study was to compare assessments of breast density on synthetic 2D images as compared with digital 2D mammograms. MATERIALS AND METHODS: This retrospective study included consecutive women undergoing screening with digital 2D mammography and tomosynthesis during May 2015 with a negative or benign outcome. In separate reading sessions, three radiologists with 5-25 years of clinical experience and 1 year of experience with synthetic 2D mammography read digital 2D and synthetic 2D images and assigned breast density categories according to the 5th edition of BI-RADS...
May 15, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28494106/closed-loop-control-of-compression-paddle-motion-to-reduce-blurring-in-mammograms
#8
Wang Kei Ma, David Howard, Peter Hogg
BACKGROUND: Since the introduction of full field digital mammography (FFDM) a large number of UK breast cancer screening centers have reported blurred images, which can be caused by movement at the compression paddle during image acquisition. PURPOSE: To propose and investigate the use of position feedback from the breast side of the compression paddle to reduce the settling time of breast side motion. METHOD: Movement at the breast side of the paddle was measured using two calibrated linear potentiometers...
May 11, 2017: Medical Physics
https://www.readbyqxmd.com/read/28477395/quantitative-comparison-of-clustered-microcalcifications-in-for-presentation-and-for-processing-mammograms-in-full-field-digital-mammography
#9
Juan Wang, Robert M Nishikawa, Yongyi Yang
PURPOSE: Mammograms acquired with full-field digital mammography (FFDM) systems are provided in both "for-processing" and "for-presentation" image formats. For-presentation images are traditionally intended for visual assessment by the radiologists. In this study, we investigate the feasibility of using for-presentation images in computerized analysis and diagnosis of microcalcification (MC) lesions. METHODS: We make use of a set of 188 matched mammogram image pairs of MC lesions from 95 cases (biopsy proven), in which both for-presentation and for-processing images are provided for each lesion...
May 6, 2017: Medical Physics
https://www.readbyqxmd.com/read/28476109/interval-breast-cancer-characteristics-before-during-and-after-the-transition-from-screen-film-to-full-field-digital-screening-mammography
#10
Rob M G van Bommel, Roy Weber, Adri C Voogd, Joost Nederend, Marieke W J Louwman, Dick Venderink, Luc J A Strobbe, Matthieu J C Rutten, Menno L Plaisier, Paul N Lohle, Marianne J H Hooijen, Vivianne C G Tjan-Heijnen, Lucien E M Duijm
BACKGROUND: To determine the proportion of "true" interval cancers and tumor characteristics of interval breast cancers prior to, during and after the transition from screen-film mammography screening (SFM) to full-field digital mammography screening (FFDM). METHODS: We included all women with interval cancers detected between January 2006 and January 2014. Breast imaging reports, biopsy results and breast surgery reports of all women recalled at screening mammography and of all women with interval breast cancers were collected...
May 5, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28473081/acr-appropriateness-criteria-%C3%A2-breast%C3%A2-pain
#11
Peter M Jokich, Lisa Bailey, Carl D'Orsi, Edward D Green, Anna I Holbrook, Su-Ju Lee, Ana P Lourenco, Martha B Mainiero, Linda Moy, Karla A Sepulveda, Priscilla J Slanetz, Sunita Trikha, Monica M Yepes, Mary S Newell
Breast pain (or tenderness) is a common symptom, experienced by up to 80% of women at some point in their lives. Fortunately, it is rarely associated with breast cancer. However, breast pain remains a common cause of referral for diagnostic breast imaging evaluation. Appropriate workup depends on the nature and focality of the pain, as well as the age of the patient. Imaging evaluation is usually not indicated if the pain is cyclic or nonfocal. For focal, noncyclic pain, imaging may be appropriate, mainly for reassurance and to identify treatable causes...
May 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28473070/acr-appropriateness-criteria-%C3%A2-evaluation-of-nipple-discharge
#12
Su-Ju Lee, Sunita Trikha, Linda Moy, Paul Baron, Roberta M diFlorio, Edward D Green, Samantha L Heller, Anna I Holbrook, Alana A Lewin, Ana P Lourenco, Bethany L Niell, Priscilla J Slanetz, Ashley R Stuckey, Nina S Vincoff, Susan P Weinstein, Monica M Yepes, Mary S Newell
Appropriate imaging evaluation of nipple discharge depends the nature of the discharge. Imaging is not indicated for women with physiologic nipple discharge. For evaluation of pathologic nipple discharge, multiple breast imaging modalities are rated for evidence-based appropriateness under various scenarios. For women age 40 or older, mammography or digital breast tomosynthesis (DBT) should be the initial examination. Ultrasound is usually added as a complementary examination, with some exceptions. For women age 30 to 39, either mammogram or ultrasound may be used as the initial examination on the basis of institutional preference...
May 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28469438/visualization-of-breast-microcalcifications-on-digital-breast-tomosynthesis-and-2-dimensional-digital-mammography-using-specimens
#13
Jieun Byun, Jee Eun Lee, Eun Suk Cha, Jin Chung, Jeoung Hyun Kim
PURPOSE: The purpose of this study is to compare the visibility of microcalcifications of digital breast tomosynthesis (DBT) and full-field digital mammography (FFDM) using breast specimens. MATERIALS AND METHODS: Thirty-one specimens' DBT and FFDM were retrospectively reviewed by four readers. RESULTS: The image quality of microcalcifications of DBT was rated as superior or equivalent in 71.0% by reader 1, 67.8% by reader 2, 64.5% by reader 3, and 80...
2017: Breast Cancer: Basic and Clinical Research
https://www.readbyqxmd.com/read/28463546/imaging-with-synthesized-2d-mammography-differences-advantages-and-pitfalls-compared-with-digital-mammography
#14
Samantha P Zuckerman, Andrew D A Maidment, Susan P Weinstein, Elizabeth S McDonald, Emily F Conant
OBJECTIVE: Synthesized 2D (s2D) mammography is rapidly replacing digital mammography in breast imaging with digital breast tomosynthesis (DBT) to reduce radiation dose and maintain screening outcomes. We illustrate variations in the appearance of s2D and digital mammograms to aid in implementation of this technology. CONCLUSION: Despite subjective differences in the appearance of s2D and digital mammograms, early outcomes of screening using s2D mammography and DBT are not inferior to those achieved with digital mammography and DBT...
May 2, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28457521/image-processing-can-cause-some-malignant-soft-tissue-lesions-to-be-missed-in-digital-mammography-images
#15
L M Warren, M D Halling-Brown, P T Looney, D R Dance, M G Wallis, R M Given-Wilson, L Wilkinson, R McAvinchey, K C Young
AIM: To investigate the effect of image processing on cancer detection in mammography. METHODS AND MATERIALS: An observer study was performed using 349 digital mammography images of women with normal breasts, calcification clusters, or soft-tissue lesions including 191 subtle cancers. Images underwent two types of processing: FlavourA (standard) and FlavourB (added enhancement). Six observers located features in the breast they suspected to be cancerous (4,188 observations)...
April 27, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28445683/impact-of-preoperative-breast-mr-imaging-and-mr-guided-surgery-on-diagnosis-and-surgical-outcome-of-women-with-invasive-breast-cancer-with-and-without-dcis-component
#16
Christiane K Kuhl, Kevin Strobel, Heribert Bieling, Eva Wardelmann, Walther Kuhn, Nikolaus Maass, Simone Schrading
Purpose To (a) compare the diagnostic accuracy of breast magnetic resonance (MR) imaging with that of conventional imaging (digital mammography and breast ultrasonography) in the identification of ductal carcinoma in situ (DCIS) components of biopsy-proven invasive breast cancer before surgery and (b) investigate the surgical outcome (positive margin rates and mastectomy rates) of women with breast cancer who underwent preoperative MR imaging combined with MR-guided needle biopsy and/or MR-guided lesion localization or bracketing where appropriate...
April 26, 2017: Radiology
https://www.readbyqxmd.com/read/28444247/exposure-parameters-of-mammograms-with-and-without-mass-lesions-from-a-south-african-breast-care-centre
#17
Sussan N Acho, Willem P E Boonzaier, Ina F Nel
In South African breast care centres, full-field digital mammography units provide breast imaging services to symptomatic and asymptomatic women simultaneously. This study evaluated the technical exposure parameters of 800 mammograms of which 100 mammograms had obvious mass lesions in the fibroglandular tissue. The average breast compression force of mammograms with mass lesions in the fibroglandular tissue was 18.4% less than the average breast compression force of mammograms without mass lesions. The average mean glandular dose (MGD), tube potential (kVp) and compressed breast thickness (CBT) values were 2...
April 24, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/28436405/a-comparison-of-methods-for-three-class-mammograms-classification
#18
Marina Milosevic, Zeljko Jovanovic, Dragan Jankovic
BACKGROUND: Mammography is considered the gold standard for early breast cancer detection but it is very difficult to interpret mammograms for many reason. Computer aided diagnosis (CAD) is an important development that may help to improve the performance in breast cancer detection. OBJECTIVE: We present a CAD system based on feature extraction techniques for detecting abnormal patterns in digital mammograms. METHODS: Computed features based on gray-level co-occurrence matrices (GLCM) are used to evaluate the effectiveness of textural information possessed by mass regions...
April 14, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28420325/usefulness-of-grayscale-inverted-images-in-addition-to-standard-images-in-digital-mammography
#19
Ayşegül Altunkeser, M Kazım Körez
BACKGROUND: Mammography is essential for early diagnosis of breast cancer, which is the most common type of cancer in females that is associated with a high mortality rate. We investigated whether evaluation of the grayscale inverted images of mammograms would aid in increasing the diagnostic sensitivity of the mammographic imaging technique. METHODS: Our study included 636 mammograms of 159 women who had undergone digital mammography. Standard, grayscale inverted, and standard plus grayscale inverted images were sequentially examined three times, at 15-day intervals, for the presence or assessment of pathological changes in the skin, calcification, asymmetric density, mass lesions, structural distortions, and intramammary and axillary lymph nodes...
April 18, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28419125/mammographic-compression-in-asian-women
#20
Susie Lau, Yang Faridah Abdul Aziz, Kwan Hoong Ng
OBJECTIVES: To investigate: (1) the variability of mammographic compression parameters amongst Asian women; and (2) the effects of reducing compression force on image quality and mean glandular dose (MGD) in Asian women based on phantom study. METHODS: We retrospectively collected 15818 raw digital mammograms from 3772 Asian women aged 35-80 years who underwent screening or diagnostic mammography between Jan 2012 and Dec 2014 at our center. The mammograms were processed using a volumetric breast density (VBD) measurement software (Volpara) to assess compression force, compression pressure, compressed breast thickness (CBT), breast volume, VBD and MGD against breast contact area...
2017: PloS One
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