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https://www.readbyqxmd.com/read/28821993/segmentation-of-breast-ultrasound-images-based-on-active-contours-using-neutrosophic-theory
#1
Mahsa Lotfollahi, Masoumeh Gity, Jing Yong Ye, A Mahlooji Far
PURPOSE: Ultrasound imaging is an effective approach for diagnosing breast cancer, but it is highly operator-dependent. Recent advances in computer-aided diagnosis have suggested that it can assist physicians in diagnosis. Definition of the region of interest before computer analysis is still needed. Since manual outlining of the tumor contour is tedious and time-consuming for a physician, developing an automatic segmentation method is important for clinical application. METHODS: The present paper represents a novel method to segment breast ultrasound images...
August 18, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28816987/analysis-of-background-parenchymal-echogenicity-on-breast-ultrasound-correlation-with-mammographic-breast-density-and-background-parenchymal-enhancement-on-magnetic-resonance-imaging
#2
Kyung Hee Ko, Hae Kyoung Jung, Inwha Kim
The purpose of this study was to analyze the background parenchymal echotexture (BP echo) on breast ultrasound in detail and to evaluate the relation BP echo with menopausal status. In addition, we correlated BP echo with mammographic breast density (MGD) and background parenchymal enhancement (BPE) on magnetic resonance imaging (MRI).The institutional review board of our hospital approved this retrospective study, and the requirement of informed consent was waived. We studied 138 women (mean age 51.6 years, range from 26 to 79 years) with newly diagnosed invasive breast cancer, who had performed preoperative mammography, ultrasound, and MR from June 2013 to June 2015...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28808894/breast-density-awareness-and-knowledge-and-intentions-for-breast-cancer-screening-in-a-diverse-sample-of-women-age-eligible-for-mammography
#3
Marimer Santiago-Rivas, Shayna Benjamin, Janna Z Andrews, Lina Jandorf
The objectives of this study were to assess breast density knowledge and breast density awareness, and to identify information associated with intention to complete routine and supplemental screening for breast cancer in a diverse sample of women age eligible for mammography. We quantitatively (self-report) assessed breast density awareness and knowledge (N = 264) in black (47.7%), Latina (35.2%), and white (17%) women recruited online and in the community. Most participants reported having heard about breast density (69...
August 14, 2017: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
https://www.readbyqxmd.com/read/28807202/do-acute-care-surgeons-follow-best-practices-for-breast-abscess-management-a-single-institution-analysis-of-325-consecutive-cases
#4
Alison Unzeitig Barron, Stephen Luk, Herb A Phelan, Brian H Williams
BACKGROUND: The breast surgery community has adopted needle aspiration as the standard of care for breast abscesses, which have a size less than 5 cm on ultrasound, no skin changes, and fewer than 5 days of symptoms. Our acute-care surgery (ACS) service manages all breast abscess consults at our urban safety-net hospital. We undertook this descriptive study to identify the rate of operative incisions and drainage performed by ACS surgeons which were not compatible with best practices for breast abscess management...
August 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28806573/digital-breast-tomosynthesis-vacuum-assisted-biopsy-for-tomosynthesis-detected-sonographically-occult-lesions
#5
Nikki S Ariaratnam, Sherrill T Little, Markus A Whitley, Kristy Ferguson
PURPOSE: To assess the utility and pathological results from DBT VAB for lesions occult on 2D mammography and breast ultrasound (US). MATERIALS AND METHODS: A retrospective review of 1116 consecutive stereotactic biopsies was performed over 27months. DBT VAB was performed for 38 non-calcified lesions which were solely detected using DBT. Imaging findings and pathology results were reviewed. RESULTS: Pathologic findings were malignant in 8 of 38 lesions [masses (5) and distortion (3)]...
August 5, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28804937/breast-tumor-classification-based-on-a-computerized-breast-imaging-reporting-and-data-system-feature-system
#6
Mengyun Qiao, Yuzhou Hu, Yi Guo, Yuanyuan Wang, Jinhua Yu
OBJECTIVES: This work focused on extracting novel and validated digital high-throughput features to present a detailed and comprehensive description of the American College of Radiology Breast Imaging Reporting and Data System (BI-RADS) with the goal of improving the accuracy of ultrasound breast cancer diagnosis. METHODS: First, the phase congruency approach was used to segment the tumors automatically. Second, high-throughput features were designed and extracted on the basis of each BI-RADS category...
August 14, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28802225/the-value-of-ultrasound-guided-surgery-for-breast-cancer
#7
REVIEW
Darja Arko, Nina Čas Sikošek, Nejc Kozar, Monika Sobočan, Iztok Takač
OBJECTIVE: An increasing number of breast-conserving surgeries (BCS) has lead clinicians to the dilemma how to provide patients with the best pathological, short-term and long-term outcomes, while at the same time improving the cosmetic outcome and the patients' quality of life. A proposed solution is the use of intraoperative ultrasound (IOUS) for lesion resection in palpable as well as non-palpable breast cancer. METHODS: This review identifies and compares evidence on palpation-guided/wire-guided vs...
August 2, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28801296/-efficacy-of-ultrasound-guided-vacuum-assisted-mammotome-excision-for-management-of-benign-breast-diseases-analysis-of-1267-cases
#8
Shu Liu, Jia-Li Zou, Fu-Lin Zhou, Yan-Man Fang
OBJECTIVE: To assess the clinical value of ultrasound-guided vacuum-assisted Mammotome (MMT) system for surgical resection of benign breast disease. METHODS: This retrospective study was conducted among 1267 patients who underwent minimally invasive surgery with ultrasound-guided MMT system for benign breast disease at our center between January, 2009 and January, 2014. The resection rate, incidence of complication, recurrence rate, patients' satisfaction, clinical follow-up results and risk factors were analyzed...
August 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28799962/intention-to-receive-breast-cancer-screening-and-related-factors-of-influence-among-vietnamese-women-in-transnational-marriages
#9
Fang-Hsin Lee
BACKGROUND: Breast cancer is a major global health issue. Receivingregular breast cancer screenings aids in the early detection and treatment of breast cancer. Numerous factors influence whether a Vietnamese woman receives breast cancer screening. PURPOSE: The aims of this study were to understand current rates of breast cancer screening and explore the factors that influence intention to undergo breast cancer screening among Vietnamese women in transnational marriages...
August 10, 2017: Journal of Nursing Research: JNR
https://www.readbyqxmd.com/read/28798325/virtual-touch-tissue-imaging-and-quantification-value-in-malignancy-prediction-for-complex-cystic-and-solid-breast-lesions
#10
Ying Zhang, Chong-Ke Zhao, Xiao-Long Li, Ya-Ping He, Wei-Wei Ren, Cai-Ping Zou, Yue-Wu Du, Hui-Xiong Xu
This study was aimed to evaluatethe usefulness of conventional ultrasound (US) and US elastography, including the latest virtual touch tissue imaging and quantification (VTIQ), in malignancy prediction for complex cystic and solid breast lesions. Eighty-nine complex cystic and solid breast lesions were subject to conventional US and US elastography, including strain elastography (SE), virtual touch tissue imaging (VTI) and VTIQ. Among the 89 lesions, thirty-four (38.2%) lesions were malignant and 55 (61.8%) lesions were benign...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28797220/a-review-of-ultrasound-tissue-characterization-with-mean-scatterer-spacing
#11
Zhuhuang Zhou, Weiwei Wu, Shuicai Wu, Kebin Jia, Po-Hsiang Tsui
Tissues exhibiting quasi-periodic structures can be modeled as a collection of diffuse scatterers and coherent scatterers. The mean scatterer spacing (MSS) of coherent and quasi-periodic components is directly related to tissue microstructure and has become an important quantitative ultrasound (QUS) parameter in the characterization of quasi-periodic tissues. In this paper, a review of the literature on the development of MSS as a QUS parameter was conducted. First, a unified theoretical background of MSS estimates was provided...
September 2017: Ultrasonic Imaging
https://www.readbyqxmd.com/read/28796627/automated-breast-ultrasound-lesions-detection-using-convolutional-neural-networks
#12
Moi Hoon Yap, Gerard Pons, Joan Marti, Sergi Ganau, Melcior Sentis, Reyer Zwiggelaar, Adrian K Davison, Robert Marti
Breast lesion detection using ultrasound imaging is considered an important step of Computer-Aided Diagnosis systems. Over the past decade, researchers have demonstrated the possibilities to automate the initial lesion detection. However, the lack of a common dataset impedes research when comparing the performance of such algorithms. This paper proposes the use of deep learning approaches for breast ultrasound lesion detection and investigates three different methods: a Patch-based LeNet, a U-Net, and a transfer learning approach with a pretrained FCN-AlexNet...
August 7, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28792892/eemd-domain-ar-spectral-method-for-mean-scatterer-spacing-estimation-of-breast-tumors-from-ultrasound-backscattered-rf-data
#13
Navid Ibtehaj Nizam, S Kaisar Alam, Md Kamrul Hasan
We present a novel method for estimating the mean scatterer spacing (MSS) of breast tumours using ensemble empirical mode decomposition (EEMD) domain analysis of deconvolved backscattered radio-frequency (RF) data. The autoregressive (AR) spectrum from which the MSS is estimated is obtained from the intrinsic mode functions (IMFs) due to regular scatterers embedded in RF data corrupted by the diffuse scatterers. The IMFs are chosen by giving priority to the presence of an enhanced fundamental harmonic and the presence of a greater number of higher harmonics in the AR spectrum estimated from the IMFs...
August 3, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28792802/utility-of-bi-rads-assessment-category-4-subdivisions-for-screening-breast-mri
#14
Roberta M Strigel, Elizabeth S Burnside, Mai Elezaby, Amy M Fowler, Frederick Kelcz, Lonie R Salkowski, Wendy B DeMartini
OBJECTIVE: BI-RADS for mammography and ultrasound subdivides category 4 assessments by likelihood of malignancy into categories 4A (> 2% to ≤ 10%), 4B (> 10% to ≤ 50%), and 4C (> 50% to < 95%). Category 4 is not subdivided for breast MRI because of a paucity of data. The purpose of the present study is to determine the utility of categories 4A, 4B, and 4C for MRI by calculating their positive predictive values (PPVs) and comparing them with BI-RADS-specified rates of malignancy for mammography and ultrasound...
June 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28781881/early-health-technology-assessment-of-magnetic-resonance-guided-high-intensity-focused-ultrasound-ablation-for-the-treatment-of-early-stage-breast-cancer
#15
Floortje M Knuttel, Sèvrin E M Huijsse, Talitha L Feenstra, Chrit T W Moonen, Maurice A A J van den Bosch, Erik Buskens, Marcel J W Greuter, Geertruida H de Bock
BACKGROUND: Magnetic resonance-guided high intensity focused ultrasound (MR-HIFU) ablation is in development for minimally invasive treatment of breast cancer. Cost-effectiveness has not been assessed yet. An early health technology assessment was performed to estimate costs of MR-HIFU ablation, compared to breast conserving treatment (BCT). METHODS: An MR-HIFU treatment model using the dedicated MR-HIFU breast system (Sonalleve, Philips Healthcare) was developed...
2017: Journal of Therapeutic Ultrasound
https://www.readbyqxmd.com/read/28781149/ultrasound-improves-the-delivery-and-therapeutic-effect-of%C3%A2-nanoparticle-stabilized-microbubbles-in-breast-cancer%C3%A2-xenografts
#16
Sofie Snipstad, Sigrid Berg, Ýrr Mørch, Astrid Bjørkøy, Einar Sulheim, Rune Hansen, Ingeborg Grimstad, Annemieke van Wamel, Astri F Maaland, Sverre H Torp, Catharina de Lange Davies
Compared with conventional chemotherapy, encapsulation of drugs in nanoparticles can improve efficacy and reduce toxicity. However, delivery of nanoparticles is often insufficient and heterogeneous because of various biological barriers and uneven tumor perfusion. We investigated a unique multifunctional drug delivery system consisting of microbubbles stabilized by polymeric nanoparticles (NPMBs), enabling ultrasound-mediated drug delivery. The aim was to examine mechanisms of ultrasound-mediated delivery and to determine if increased tumor uptake had a therapeutic benefit...
August 3, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28780840/-diagnostic-value-of-quantitative-pharmacokinetic-parameters-and-relative-quantitative-pharmacokinetic-parameters-in-breast-lesions-with-dynamic-contrast-enhanced-mri
#17
T T Sun, W H Liu, Y Q Zhang, L H Li, R Wang, Y Y Ye
Objective: To explore the differential between the value of dynamic contrast-enhanced MRI quantitative pharmacokinetic parameters and relative pharmacokinetic quantitative parameters in breast lesions. Methods: Retrospective analysis of 255 patients(262 breast lesions) who was obtained by clinical palpation , ultrasound or full-field digital mammography , and then all lessions were pathologically confirmed in Zhongda Hospital, Southeast University from May 2012 to May 2016. A 3.0 T MRI scanner was used to obtain the quantitative MR pharmacokinetic parameters: volume transfer constant (K(trans)), exchange rate constant (k(ep))and extravascular extracellular volume fraction (V(e))...
August 1, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28777747/breast-fibroadenoma-with-pseudoangiomatous-pash-like-stroma
#18
Josko Bezic, Jelena Srbljin
Pseudoangiomatous stromal hyperplasia (PASH) is a breast stromal change, histologically characterized by anastomosing, slit-like spaces lined by slender myofibroblasts and surrounded by dense collagenous stroma. Mass forming cases clinically and radiologically simulate fibroadenoma. A middle aged women presented with unpalpable breast nodule discovered on ultrasound examination. The ultrasound characteristics were typical for fibroadenoma, while fine-needle aspiration cytology was inconclusive. The histological examination of the lumpectomy specimen showed fibroadenoma with peculiar stromal alteration consistent with pseudoangiomatous stromal hyperplasia...
August 2, 2017: Breast Disease
https://www.readbyqxmd.com/read/28777649/clinical-value-of-mammography-in-the-evaluation-of-palpable-breast-lumps-in-women-30-years-old-and-older
#19
Ann L Brown, Jordana Phillips, Priscilla J Slanetz, Valerie Fein-Zachary, Shambhavi Venkataraman, Vandana Dialani, Tejas S Mehta
OBJECTIVE: The purpose of this study was to determine whether mammography adds clinical value in the diagnostic imaging workup of women 30 years old and older who present with palpable breast lumps. MATERIALS AND METHODS: We retrospectively identified the records of all women 30 years old and older who underwent imaging evaluation with mammography and ultrasound for a palpable lump between January 1, 2009, and December 31, 2010. Imaging reports were reviewed for findings related to the lump and for incidental nonpalpable findings...
August 4, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28774472/preoperative-sentinel-lymph-node-identification-biopsy-and-localisation-using-contrast-enhanced-ultrasound-ceus-in-patients-with-breast-cancer-a-systematic-review-and-meta-analysis
#20
REVIEW
A Nielsen Moody, J Bull, A-M Culpan, T Munyombwe, N Sharma, M Whitaker, S Wolstenhulme
AIM: To evaluate whether contrast-enhanced ultrasound (CEUS)-guided core biopsy of the sentinel lymph node (SLN) could identify metastatic nodes preoperatively and reduce the number of surgical SLN biopsies in patients with breast cancer and normal axillary B-mode ultrasound; and to establish whether CEUS SLN identification and localisation is a viable alternative to standard lymphatic mapping using isotope and blue dye. MATERIALS AND METHODS: A search of several electronic databases was performed and identified studies were assessed using QUADAS-2 for methodological quality...
August 1, 2017: Clinical Radiology
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