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mammographic density

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https://www.readbyqxmd.com/read/28079249/fractal-analysis-of-visual-search-activity-for-mass-detection-during-mammographic-screening
#1
Folami Alamudun, Hong-Jun Yoon, Kathleen B Hudson, Garnetta Morin-Ducote, Tracy Hammond, Georgia D Tourassi
PURPOSE: The objective of this study is to assess the complexity of human visual search activity during mammographic screening using fractal analysis and to investigate its relationship with case and reader characteristics. METHODS: The study was performed for the task of mammographic screening with simultaneous viewing of four coordinated breast views as typically done in clinical practice. Eye-tracking data and diagnostic decisions collected for 100 mammographic cases (25 normal, 25 benign, 50 malignant) and 10 readers (three board certified radiologists and seven radiology residents), formed the corpus data for this study...
January 12, 2017: Medical Physics
https://www.readbyqxmd.com/read/28077158/ccl2-driven-inflammation-increases-mammary-gland-stromal-density-and-cancer-susceptibility-in-a-transgenic-mouse-model
#2
Xuan Sun, Danielle J Glynn, Leigh J Hodson, Cecilia Huo, Kara Britt, Erik W Thompson, Lucy Woolford, Andreas Evdokiou, Jeffrey W Pollard, Sarah A Robertson, Wendy V Ingman
BACKGROUND: Macrophages play diverse roles in mammary gland development and breast cancer. CC-chemokine ligand 2 (CCL2) is an inflammatory cytokine that recruits macrophages to sites of injury. Although CCL2 has been detected in human and mouse mammary epithelium, its role in regulating mammary gland development and cancer risk has not been explored. METHODS: Transgenic mice were generated wherein CCL2 is driven by the mammary epithelial cell-specific mouse mammary tumour virus 206 (MMTV) promoter...
January 11, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28068940/early-life-socioeconomic-environment-and-mammographic-breast-density
#3
Parisa Tehranifar, Barbara A Cohn, Julie D Flom, Angeline Protacio, Piera Cirillo, L H Lumey, Karin B Michels, Mary Beth Terry
BACKGROUND: Early life social environment may influence breast cancer through shaping risk factors operating in early life, adolescence and adulthood, or may be associated with breast cancer risk independent of known risk factors. We investigated the associations between early life socioeconomic status (SES) and mammographic density, a strong risk factor for breast cancer, and the extent to which these associations were independent of risk factors across the lifecourse. METHODS: We used data from an adult follow-up study of two U...
January 10, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28062399/longitudinal-study-of-mammographic-density-measures-that-predict-breast-cancer-risk
#4
Kavitha Krishnan, Laura Baglietto, Jennifer Stone, Julie A Simpson, Gianluca Severi, Christopher Evans, Robert J MacInnis, Graham G Giles, Carmel Apicella, John L Hopper
BACKGROUND: After adjusting for age and body mass index (BMI), mammographic measures - dense area (DA), percent dense area (PDA) and non-dense area (NDA) - are associated with breast cancer risk. Our aim was to use longitudinal data to estimate the extent to which these risk-predicting measures track over time. METHODS: We collected 4,320 mammograms (age range, 24-83 years) from 970 women in the Melbourne Collaborative Cohort Study and the Australian Breast Cancer Family Registry...
January 6, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28052571/classification-of-normal-screening-mammograms-is-strongly-influenced-by-perceived-mammographic-breast-density
#5
Zoey Zy Ang, Mohammad A Rawashdeh, Rob Heard, Patrick C Brennan, Warwick Lee, Sarah J Lewis
INTRODUCTION: To investigate how breast screen readers classify normal screening cases using descriptors of normal mammographic features and to assess test cases for suitability for a single reading strategy. METHODS: Fifteen breast screen readers interpreted a test set of 29 normal screening cases and classified them by firstly rating their perceived difficulty to reach a 'normal' decision, secondly identifying the cases' salient normal mammographic features and thirdly assessing the cases' suitability for a single reading strategy...
January 3, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28048364/we-fg-207a-01-introduction-to-dedicated-breast-ct-early-studies
#6
S Vedantham
: Mammography-based screening has been a valuable imaging tool for the early detection of non-palpable lesions and has contributed to significant reduction in breast cancer associated mortality. However, the breast imaging community recognizes that mammography is not ideal, and in particular is inferior for women with dense breasts. Also, the 2-D projection of a 3-D organ results in tissue superposition contributing to false-positives. The sensitivity of mammography is breast-density dependent...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047717/we-fg-207a-02-why-we-need-breast-ct-clinical-perspective
#7
A O'Connell
: Mammography-based screening has been a valuable imaging tool for the early detection of non-palpable lesions and has contributed to significant reduction in breast cancer associated mortality. However, the breast imaging community recognizes that mammography is not ideal, and in particular is inferior for women with dense breasts. Also, the 2-D projection of a 3-D organ results in tissue superposition contributing to false-positives. The sensitivity of mammography is breast-density dependent...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047520/we-fg-207a-05-dedicated-breast-ct-as-a-diagnostic-imaging-tool-physics-and-clinical-feasibility
#8
A Karellas
: Mammography-based screening has been a valuable imaging tool for the early detection of non-palpable lesions and has contributed to significant reduction in breast cancer associated mortality. However, the breast imaging community recognizes that mammography is not ideal, and in particular is inferior for women with dense breasts. Also, the 2-D projection of a 3-D organ results in tissue superposition contributing to false-positives. The sensitivity of mammography is breast-density dependent...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047068/we-fg-207a-03-low-dose-cone-beam-breast-ct-physics-and-technology-development
#9
J Boone
: Mammography-based screening has been a valuable imaging tool for the early detection of non-palpable lesions and has contributed to significant reduction in breast cancer associated mortality. However, the breast imaging community recognizes that mammography is not ideal, and in particular is inferior for women with dense breasts. Also, the 2-D projection of a 3-D organ results in tissue superposition contributing to false-positives. The sensitivity of mammography is breast-density dependent...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046408/we-fg-207a-04-performance-characteristics-of-photon-counting-breast-ct
#10
W Kalender
: Mammography-based screening has been a valuable imaging tool for the early detection of non-palpable lesions and has contributed to significant reduction in breast cancer associated mortality. However, the breast imaging community recognizes that mammography is not ideal, and in particular is inferior for women with dense breasts. Also, the 2-D projection of a 3-D organ results in tissue superposition contributing to false-positives. The sensitivity of mammography is breast-density dependent...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046291/we-fg-207a-00-advances-in-dedicated-breast-ct
#11
Srinivasan Vedantham, Sabee Molloi
: Mammography-based screening has been a valuable imaging tool for the early detection of non-palpable lesions and has contributed to significant reduction in breast cancer associated mortality. However, the breast imaging community recognizes that mammography is not ideal, and in particular is inferior for women with dense breasts. Also, the 2-D projection of a 3-D organ results in tissue superposition contributing to false-positives. The sensitivity of mammography is breast-density dependent...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045557/metabolic-syndrome-and-mammographic-density-in-premenopausal-chilean-women
#12
Angela Martínez-Arroyo, Hortensia Moreno-Macías, Ana Pereira Scalabrino, Maria Luisa Garmendia
BACKGROUND: Metabolic syndrome (MetS) has been previously associated with an increased risk of breast cancer in postmenopausal women. Mammographic density (MD) is a marker of breast cancer risk. There is little evidence of an association between MetS and MD in premenopausal women. METHODS: Through a cross-sectional study, we evaluated 364 premenopausal Chilean women in which we measured anthropometric, blood pressure, and metabolic markers. MetS and its components were defined according to the National Cholesterol Education Program Adult Treatment Plan III criteria...
January 3, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28012087/volumetric-breast-density-affects-performance-of-digital-screening-mammography
#13
Johanna O P Wanders, Katharina Holland, Wouter B Veldhuis, Ritse M Mann, Ruud M Pijnappel, Petra H M Peeters, Carla H van Gils, Nico Karssemeijer
PURPOSE: To determine to what extent automatically measured volumetric mammographic density influences screening performance when using digital mammography (DM). METHODS: We collected a consecutive series of 111,898 DM examinations (2003-2011) from one screening unit of the Dutch biennial screening program (age 50-75 years). Volumetric mammographic density was automatically assessed using Volpara. We determined screening performance measures for four density categories comparable to the American College of Radiology (ACR) breast density categories...
December 23, 2016: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28002858/is-individualizing-breast-compression-during-mammography-useful-investigations-of-pain-indications-during-mammography-relating-to-compression-force-and-surface-area-of-the-compressed-breast
#14
Katarzyna Feder, Jens-Holger Grunert
Purpose The aim of this paper is to determine how the presence of pain during mammographic compression could be reduced. To this end, we examine its relationship with compression force, surface-area of the compressed breast, breast density (ACR) and former operations. Materials and Methods In 199 women 765 mammograms were performed. Women were asked to rate the level of pain on a scale of 0 - 10 (0: no, 10: highest pain). The surface-area of the breast under compression captured by the mammograms was measured using planimetry...
January 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28002200/association-between-expression-of-inflammatory-markers-in-normal-breast-tissue-and-mammographic-density-among-premenopausal-and-postmenopausal-women
#15
Mirette Hanna, Isabelle Dumas, Michèle Orain, Simon Jacob, Bernard Têtu, François Sanschagrin, Alexandre Bureau, Brigitte Poirier, Caroline Diorio
OBJECTIVE: Inflammatory markers may be associated with breast cancer risk. We assessed the association between expression levels of proinflammatory (interleukin 6, tumor necrosis factor-α, C-reactive protein, cyclooxygenase 2, leptin, serum amyloid A1, interleukin 8, and signal transducer and activator of transcription 3) and anti-inflammatory markers (transforming growth factor-β, interleukin 10, and lactoferrin) in normal breast tissue with mammographic density, a strong breast cancer risk indicator, among 163 breast cancer patients...
December 19, 2016: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/27997380/developing-a-new-case-based-computer-aided-detection-scheme-and-an-adaptive-cueing-method-to-improve-performance-in-detecting-mammographic-lesions
#16
Maxine Tan, Faranak Aghaei, Yunzhi Wang, Bin Zheng
The purpose of this study is to evaluate a new method to improve performance of computer-aided detection (CAD) schemes of screening mammograms with two approaches. In the first approach, we developed a new case based CAD scheme using a set of optimally selected global mammographic density, texture, spiculation, and structural similarity features computed from all four full-field digital mammography images of the craniocaudal (CC) and mediolateral oblique (MLO) views by using a modified fast and accurate sequential floating forward selection feature selection algorithm...
January 21, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/27993168/mammographic-density-assessed-on-paired-raw-and-processed-digital-images-and-on-paired-screen-film-and-digital-images-across-three-mammography-systems
#17
Anya Burton, Graham Byrnes, Jennifer Stone, Rulla M Tamimi, John Heine, Celine Vachon, Vahit Ozmen, Ana Pereira, Maria Luisa Garmendia, Christopher Scott, John H Hipwell, Caroline Dickens, Joachim Schüz, Mustafa Erkin Aribal, Kimberly Bertrand, Ava Kwong, Graham G Giles, John Hopper, Beatriz Pérez Gómez, Marina Pollán, Soo-Hwang Teo, Shivaani Mariapun, Nur Aishah Mohd Taib, Martín Lajous, Ruy Lopez-Riduara, Megan Rice, Isabelle Romieu, Anath Arzee Flugelman, Giske Ursin, Samera Qureshi, Huiyan Ma, Eunjung Lee, Reza Sirous, Mehri Sirous, Jong Won Lee, Jisun Kim, Dorria Salem, Rasha Kamal, Mikael Hartman, Hui Miao, Kee-Seng Chia, Chisato Nagata, Sudhir Vinayak, Rose Ndumia, Carla H van Gils, Johanna O P Wanders, Beata Peplonska, Agnieszka Bukowska, Steve Allen, Sarah Vinnicombe, Sue Moss, Anna M Chiarelli, Linda Linton, Gertraud Maskarinec, Martin J Yaffe, Norman F Boyd, Isabel Dos-Santos-Silva, Valerie A McCormack
BACKGROUND: Inter-women and intra-women comparisons of mammographic density (MD) are needed in research, clinical and screening applications; however, MD measurements are influenced by mammography modality (screen film/digital) and digital image format (raw/processed). We aimed to examine differences in MD assessed on these image types. METHODS: We obtained 1294 pairs of images saved in both raw and processed formats from Hologic and General Electric (GE) direct digital systems and a Fuji computed radiography (CR) system, and 128 screen-film and processed CR-digital pairs from consecutive screening rounds...
December 19, 2016: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/27986574/mammography-before-and-after-bariatric-surgery
#18
Tara E Mokhtari, Ulysses S Rosas, John R Downey, Kanae K Miyake, Debra M Ikeda, John M Morton
BACKGROUND: Morbidly obese women are at increased risk for breast cancer, and the majority of surgical weight-loss patients are older than 40 years old. OBJECTIVE: The purpose of the present study was to determine the technical and interpretive changes in mammography following bariatric surgery. SETTING: Accredited Academic Hospital. METHODS: Two breast-imaging radiologists reviewed screening mammograms performed on 10 morbidly obese women undergoing bariatric surgery both pre- and postoperatively...
October 31, 2016: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/27978856/involution-of-breast-tissue-and-mammographic-density
#19
Gertraud Maskarinec, Dan Ju, David Horio, Lenora W M Loo, Brenda Y Hernandez
BACKGROUND: Mammographic density decreases and involution of breast tissue increases with age; both are thought to be risk factors for breast cancer. The current study investigated the relationship between involution or hormone treatment (HT) and breast density among multiethnic patients with breast cancer in Hawaii. METHODS: Patients with breast cancer cases were recruited from a nested case-control study within the Multiethnic Cohort. HT use was self-reported at cohort entry and at the time of the density study...
December 15, 2016: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/27940975/maternal-anthropometry-and-mammographic-density-in-adult-daughters
#20
Karin B Michels, Barbara A Cohn, Mandy Goldberg, Julie D Flom, Marcelle Dougan, Mary Beth Terry
OBJECTIVE: We examined the relation between maternal anthropometry and mammographic density in the adult daughter using prospectively collected data. METHODS: Our study included a total of 700 mother-daughter dyads participating in an adult follow-up of women born in 2 US birth cohorts: the Child Health and Development Study and the Boston, Massachusetts, and Providence, Rhode Island sites of the National Collaborative Perinatal Project. RESULTS: We observed an increased percent breast density at a mean age of 43...
November 2016: Pediatrics
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