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Mri n breast

Harini Veeraraghavan, Brittany Z Dashevsky, Natsuko Onishi, Meredith Sadinski, Elizabeth Morris, Joseph O Deasy, Elizabeth J Sutton
We present a segmentation approach that combines GrowCut (GC) with cancer-specific multi-parametric Gaussian Mixture Model (GCGMM) to produce accurate and reproducible segmentations. We evaluated GCGMM using a retrospectively collected 75 invasive ductal carcinoma with ERPR+ HER2- (n = 15), triple negative (TN) (n = 9), and ER-HER2+ (n = 57) cancers with variable presentation (mass and non-mass enhancement) and background parenchymal enhancement (mild and marked). Expert delineated manual contours were used to assess the segmentation performance using Dice coefficient (DSC), mean surface distance (mSD), Hausdorff distance, and volume ratio (VR)...
March 19, 2018: Scientific Reports
Kenkichi Baba, Hayato Kaida, Chikayuki Hattori, Koichiro Muraki, Tomoko Kugiyama, Hiromasa Fujita, Masatoshi Ishibashi
OBJECTIVE: The purpose of this study was to investigate the palliative and tumoricidal effects of concurrent therapy of strontium-89 chloride (89 SrCl2 ) and zoledronic acid (ZA) for painful bone metastases. SUBJECTS AND METHODS: Fifty-one patients with painful bone metastases prostate cancer (n=17), lung cancer (n=13), breast cancer (n=12), other cancers (n=9) were treated. Bone metastases was confirmed in all patients by technetium-99m hydroxymethylene diphosphonate (99m Tc-HMDP) bone scintigraphy...
March 20, 2018: Hellenic Journal of Nuclear Medicine
Jennifer D Brooks, Janice S Sung, Malcolm C Pike, Irene Orlow, Frank Z Stanczyk, Jonine L Bernstein, Elizabeth A Morris
Background parenchymal enhancement (BPE) is the degree to which normal breast tissue enhances on contrast-enhanced magnetic resonance imaging (MRI). MRI-density is a volumetric measure of breast density that is highly correlated with mammographic density, an established breast cancer risk factor. Endogenous estrogen concentrations are positively associated with postmenopausal breast cancer risk and BPE has been shown to be sensitive to hormonal exposures. The objective of this study was to examine the relationship between BPE and MRI-density and serum hormone concentrations in postmenopausal women...
March 9, 2018: International Journal of Cancer. Journal International du Cancer
T Onega, W Zhu, J E Weiss, M Goodrich, A N A Tosteson, W DeMartini, B A Virnig, L M Henderson, D S M Buist, K J Wernli, K Kerlikowske, R A Hubbard
PURPOSE: The survival benefit from detecting additional breast cancers by preoperative magnetic resonance imaging (MRI) continues to be controversial. METHODS: We followed a cohort of 4454 women diagnosed with non-metastatic breast cancer (stage I-III) from 2/2005-6/2010 in five registries of the breast cancer surveillance consortium (BCSC). BCSC clinical and registry data were linked to Medicare claims and enrollment data. We estimated the cumulative probability of breast cancer-specific and all-cause mortality...
March 7, 2018: Breast Cancer Research and Treatment
Soo-Yeon Kim, Jaewook Shin, Dong-Hyun Kim, Eun-Kyung Kim, Hee Jung Moon, Jung Hyun Yoon, Jai Kyung You, Min Jung Kim
OBJECTIVES: To investigate the correlation between conductivity and ADC in invasive ductal carcinoma according to the presence of necrosis on MRI. METHODS: Eighty-one women with invasive ductal carcinoma ≥1 cm on T2-weighted fast spin echo sequence of preoperative MRI were included. Phase-based MR electric properties tomography was used to reconstruct conductivity. Mean ADC was measured. Necrosis was defined as an area with very high T2 signal intensity. The relationship between conductivity and ADC was examined using Spearman's correlation coefficient (r)...
March 6, 2018: European Radiology
Amie Y Lee, Vicky T Nguyen, Vignesh A Arasu, Heather I Greenwood, Kimberly M Ray, Bonnie N Joe, Elissa R Price
OBJECTIVE: The purpose of this study is to determine the frequency of correlation of sonographic and MRI findings after percutaneous sampling of presumed ultrasound correlates to suspicious lesions detected on breast MRI and to describe our initial experiences with limited-sequence MRI for postprocedural clip verification. MATERIALS AND METHODS: Between January 1, 2014, and March 31, 2016, a total of 1947 contrast-enhanced breast MRI examinations were performed, and 245 targeted ultrasound examinations were conducted to identify correlates to suspicious MRI findings...
February 28, 2018: AJR. American Journal of Roentgenology
Niveditha Pinnamaneni, Linda Moy, Yiming Gao, Amy N Melsaether, James S Babb, Hildegard K Toth, Samantha L Heller
RATIONALE AND OBJECTIVE: The objective of this study was to evaluate breast lesion outcomes in patients after canceled MRI-guided breast biopsy due to lesion nonvisualization. MATERIALS AND METHODS: Electronic medical records (January 2007-December 2014) were searched for patients with canceled magnetic resonance imaging (MRI)-guided breast biopsies due to lesion nonvisualization. A total of 1403 MRI-detected lesions were scheduled for MRI-guided biopsy and 89 were canceled because of nonvisualization...
February 22, 2018: Academic Radiology
Diana S M Buist, Linn Abraham, Christoph I Lee, Janie M Lee, Constance Lehman, Ellen S O'Meara, Natasha K Stout, Louise M Henderson, Deirdre Hill, Karen J Wernli, Jennifer S Haas, Anna N A Tosteson, Karla Kerlikowske, Tracy Onega
Importance: There is little evidence on population-based harms and benefits of screening breast magnetic resonance imaging (MRI) in women with and without a personal history of breast cancer (PHBC). Objective: To evaluate biopsy rates and yield in the 90 days following screening (mammography vs magnetic resonance imaging with or without mammography) among women with and without a PHBC. Design, Setting, and Participants: Observational cohort study of 6 Breast Cancer Surveillance Consortium (BCSC) registries...
February 12, 2018: JAMA Internal Medicine
Stephanie A Cohen, Courtney Lynam Scherr, Dawn M Nixon
Women with BRCA mutations, at significantly increased risk for breast and ovarian cancer, do not consistently adhere to management guidelines due to lack of awareness and challenges tracking appointments. We developed an iPhone application (app) to help BRCA carriers manage their surveillance. We explored baseline awareness and adherence to surveillance guidelines and analytic data from 21 months of app use. Descriptive statistics were calculated on responses (N = 86) to a survey about surveillance awareness and practices...
February 10, 2018: Journal of Genetic Counseling
Cuishan Liang, Zixuan Cheng, Yanqi Huang, Lan He, Xin Chen, Zelan Ma, Xiaomei Huang, Changhong Liang, Zaiyi Liu
RATIONALE AND OBJECTIVES: This study aims to investigate the value of a magnetic resonance imaging-based radiomics classifier for preoperatively predicting the Ki-67 status in patients with breast cancer. MATERIALS AND METHODS: We chronologically divided 318 patients with clinicopathologically confirmed breast cancer into a training dataset (n = 200) and a validation dataset (n = 118). Radiomics features were extracted from T2-weighted (T2W) and contrast-enhanced T1-weighted (T1+C) images of breast cancer...
February 7, 2018: Academic Radiology
Hebatallah Hassan Mamdouh Hassan, Amr Magdi El Abd, Amany Abdel Bary, Nagy N N Naguib
RATIONALE AND OBJECTIVES: This study aims to describe the magnetic resonance imaging (MRI) features of fat necrosis on magnetic resonance mammography, which may downstage a suspicious lesion to a merely benign finding. MATERIALS AND METHODS: This prospective study included 82 female patients (mean age 50 years) who were diagnosed to have suspicious lesions by mammography, ultrasonography or both. All patients underwent MRI including diffusion-weighted imaging and spectroscopy...
February 7, 2018: Academic Radiology
Christiane K Kuhl, Annika Keulers, Kevin Strobel, Hannah Schneider, Nadine Gaisa, Simone Schrading
BACKGROUND: Breast magnetic resonance imaging (MRI) has been reported to frequently result in false-positive diagnoses, limiting its positive predictive value (PPV). However, for PPV calculation, all nonmalignant tissue changes are equally considered false-positive, although the respective prognostic importance, and thus patient management implications, of different pathologies may well differ. We investigated the pathology of false-positive diagnoses made by MRI compared with radiographic (digital mammography/tomosynthesis [DM/DBT]) screening...
February 9, 2018: Breast Cancer Research: BCR
K Baxstrom, B A Peterson, C Lee, R I Vogel, A H Blaes
BACKGROUND: Women treated with chest radiation for Hodgkin lymphoma (HL) are at significantly increased risk of breast cancer and cardiovascular disease. HL survivors are recommended to have annual dual screening with mammogram (MMG) and breast magnetic resonance imaging (MRI). They are also recommended to undergo echocardiogram (echo) 5 years after completion of radiation. We performed a pilot study to characterize the women who are and are not receiving proper dual screening for breast cancer and baseline echo, and to examine the impact of a LTFU clinic consultation on screening...
February 7, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
W H van Harten, N Goedbloed, A H Boekhout, S Heintzbergen
BACKGROUND: In general, patients with a cancer suspicion visit the hospital multiple times before diagnosis is completed. Using various "operations management" techniques a few fast track diagnostic services were implemented in the Netherlands Cancer Institute (NKI) in 2006. Growing patient numbers and increasing process complexity, led to diminished service levels. To decrease the amount of patient visits and to extend these services beyond the (obvious) breast cancer services, fast track diagnostics is now implemented for all 18 cancer types that present with a frequency of minimally one per week...
February 7, 2018: BMC Health Services Research
Francesca Valdora, Nehmat Houssami, Federica Rossi, Massimo Calabrese, Alberto Stefano Tagliafico
PURPOSE: To perform a rapid review of the recent literature on radiomics and breast cancer (BC). METHODS: A rapid review, a streamlined approach to systematically identify and summarize emerging studies was done (updated 27 September 2017). Clinical studies eligible for inclusion were those that evaluated BC using a radiomics approach and provided data on BC diagnosis (detection or characterization) or BC prognosis (response to therapy, morbidity, mortality), or provided data on technical challenges (software application: open source, repeatability of results)...
February 2, 2018: Breast Cancer Research and Treatment
S Vreemann, A Gubern-Merida, S Lardenoije, P Bult, N Karssemeijer, K Pinker, R M Mann
PURPOSE: To evaluate the frequency of missed cancers on breast MRI in women participating in a high-risk screening program. METHODS: Patient files from women who participated in an increased risk mammography and MRI screening program (2003-2014) were coupled to the Dutch National Cancer Registry. For each cancer detected, we determined whether an MRI scan was available (0-24 months before cancer detection), which was reported to be negative. These negative MRI scans were in consensus re-evaluated by two dedicated breast radiologists, with knowledge of the cancer location...
January 31, 2018: Breast Cancer Research and Treatment
Bari Dane, Ankur Doshi, Soterios Gfytopoulos, Priya Bhattacharji, Michael Recht, William Moore
OBJECTIVES AND RATIONALE: Radiology-pathology correlation is time-consuming and is not feasible in most clinical settings, with the notable exception of breast imaging. The purpose of this study was to determine if an automated radiology-pathology report pairing system could accurately match radiology and pathology reports, thus creating a feedback loop allowing for more frequent and timely radiology-pathology correlation. METHODS: An experienced radiologist created a matching matrix of radiology and pathology reports...
January 17, 2018: Academic Radiology
Wei Xiong Fan, Xiao Feng Chen, Feng Yan Cheng, Ya Bao Cheng, Tai Xu, Wen Biao Zhu, Xiao Lei Zhu, Gui Jin Li, Shuai Li
We explored the utility of time-resolved angiography with interleaved stochastic trajectories dynamic contrast-enhanced magnetic resonance imaging (TWIST DCE-MRI), readout segmentation of long variable echo-trains diffusion-weighted magnetic resonance imaging- diffusion-weighted magnetic resonance imaging (RESOLVE-DWI), and echo-planar imaging- diffusion-weighted magnetic resonance imaging (EPI-DWI) for distinguishing between malignant and benign breast lesions.This retrospective analysis included female patients with breast lesions seen at a single center in China between January 2016 and April 2016...
January 2018: Medicine (Baltimore)
J J Zhang, X T Yang, X S Du, J X Zhang, L N Hou, J L Niu
Objective: To investigate the magnetic resonance imaging (MRI) findings and clinicopathological features of primary lesions in patients with occult breast cancer (OBC). Methods: The imaging reports from the Breast Imaging Reporting and Data System in 2013 were retrospectively analyzed to investigate the morphology and the time signal intensity curve (TIC) of breast lesions in patients with OBC. The clinical and pathological characteristics of these patients were also included. Results: A total of 34 patients were enrolled...
January 23, 2018: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
Randy Miles, Fei Wan, Tracy L Onega, Amanda Lenderink-Carpenter, Ellen S O'Meara, Weiwei Zhu, Louise M Henderson, Jennifer S Haas, Deirdre A Hill, Anna N A Tosteson, Karen J Wernli, Jennifer Alford-Teaster, Janie M Lee, Constance D Lehman, Christoph I Lee
BACKGROUND: Women at high lifetime breast cancer risk may benefit from supplemental breast magnetic resonance imaging (MRI) screening, in addition to routine mammography screening for earlier cancer detection. MATERIALS AND METHODS: We performed a cross-sectional study of 422,406 women undergoing routine mammography screening across 86 Breast Cancer Surveillance Consortium (BCSC) facilities during calendar year 2012. We determined availability and use of on-site screening breast MRI services based on woman-level characteristics, including >20% lifetime absolute risk using the National Cancer Institute risk assessment tool...
January 17, 2018: Journal of Women's Health
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