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Breast cancer, MRI

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https://www.readbyqxmd.com/read/28108861/in-vivo-magnetic-resonance-imaging-investigating-the-development-of-experimental-brain-metastases-due-to-triple-negative-breast-cancer
#1
Amanda M Hamilton, Paula J Foster
Triple negative breast cancer (TNBC), when associated with poor outcome, is aggressive in nature with a high incidence of brain metastasis and the shortest median overall patient survival after brain metastasis development compared to all other breast cancer subtypes. As therapies that control primary cancer and extracranial metastatic sites improve, the incidence of brain metastases is increasing and the management of patients with breast cancer brain metastases continues to be a significant clinical challenge...
January 21, 2017: Clinical & Experimental Metastasis
https://www.readbyqxmd.com/read/28107084/can-diffusion-weighted-imaging-and-related-apparent-diffusion-coefficient-be-a-prognostic-value-in-women-with-breast-cancer
#2
Paola Rabasco, Rocchina Caivano, Vittorio Simeon, Giuseppina Dinardo, Antonella Lotumolo, Matilde Gioioso, Antonio Villonio, Giancarlo Iannelli, Felice D'Antuono, Alexis Zandolino, Luca Macarini, Giuseppe Guglielmi, Aldo Cammarota
PURPOSE: To analyze diffusion-weighted imaging (DWI) and the related apparent diffusion coefficient (ADC) in women with breast cancer, correlating these values with the presence at 3 years of distant metastases, and to demonstrate that DWI-Magnetic Resonance Imaging (MRI) and related ADC values may represent a prognostic value in the study of women with breast cancer. MATERIALS AND METHODS: Sixty women (aged 45-73 years) affected with breast cancer with a follow-up in 3 years were enrolled...
January 20, 2017: Cancer Investigation
https://www.readbyqxmd.com/read/28106540/detection-of-human-breast-cancer-cells-using-a-2-deoxy-d-glucose-functionalized-superparamagnetic-iron-oxide-nanoparticles
#3
Xiu-Hong Shan, Peng Wang, Fei Xiong, Hao-Yue Lu, Hui Hu
BACKGROUND: Breast cancer is one of the most common type of female cancer worldwide and represents 14% of cancer-related deaths in women. Early detection is the most important factor for treatment and prognosis of breast cancer. In most countries, the women are currently screened with mammography only. Even though there has been considerable progress in the detection, surgical therapy, hormonal and target therapy of breast cancer, there are about ∼ 3500 000 women who die from breast cancer each year...
January 13, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28105662/preoperative-mri-of-the-breast-and-ipsilateral-breast-tumor-recurrence-long-term-follow-up
#4
Mai-Kim Gervais, Ellen Maki, Dan E Schiller, Pavel Crystal, David R McCready
BACKGROUND: Local recurrence after breast conserving surgery is reported in 5-10% of cases. This study aims to determine if preoperative MRI is associated with reduced IBTR rates in the longer term and evaluate IBTR rates of a high risk (TN and Her-2 positive) subgroup in those receiving MRI or not. METHODS: Between 1999 and 2005, patients with invasive breast cancer undergoing BCS and radiation were identified. Primary endpoint was IBTR rate. RESULTS: The cohort consisted of 470 cases: 27% underwent MRI and 73% did not...
January 20, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28104942/accuracy-of-mri-for-prediction-of-response-to-neo-adjuvant-chemotherapy-in-triple-negative-breast-cancer-compared-to-other-subtypes-of-breast-cancer
#5
Gaurav J Bansal, Divya Santosh
PURPOSE: The aim of this study was to compare the accuracy of magnetic resonance imaging (MRI) for the prediction of response to neo-adjuvant chemotherapy in triple negative (TN) breast cancer, with respect to other subtypes. MATERIALS AND METHODS: There were a total of 1610 breast cancers diagnosed between March 2009 and August 2014, out of which 82 patients underwent MRI before and after neo-adjuvant chemotherapy but just before surgery. TN cancers were analyzed with respect to others subtypes...
October 2016: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/28102529/recovery-from-chemotherapy-induced-white-matter-changes-in-young-breast-cancer-survivors
#6
Thibo Billiet, Louise Emsell, Mathieu Vandenbulcke, Ronald Peeters, Daan Christiaens, Alexander Leemans, Wim Van Hecke, Ann Smeets, Frederic Amant, Stefan Sunaert, Sabine Deprez
In a previous longitudinal diffusion tensor imaging (DTI) study, we observed cerebral white matter (WM) alterations (reduced fractional anisotropy (FA)) related to decreased cognitive performance 3-5 months after chemotherapy-treatment (t2) when compared to baseline (t1) (Deprez et al. in Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology, 30(3), 274-281. doi:10.1200/JCO.2011.36.8571, 2012). The current study investigates the evolution and the nature of these previously observed microstructural changes...
January 19, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28091804/baseline-results-from-the-uk-signify-study-a-whole-body-mri-screening-study-in-tp53-mutation-carriers-and-matched-controls
#7
Sibel Saya, Emma Killick, Sarah Thomas, Natalie Taylor, Elizabeth K Bancroft, Jeanette Rothwell, Sarah Benafif, Alexander Dias, Christos Mikropoulos, Jenny Pope, Anthony Chamberlain, Ranga Gunapala, Louise Izatt, Lucy Side, Lisa Walker, Susan Tomkins, Jackie Cook, Julian Barwell, Vicki Wiles, Lauren Limb, Diana Eccles, Martin O Leach, Susan Shanley, Fiona J Gilbert, Helen Hanson, David Gallagher, Bala Rajashanker, Richard W Whitehouse, Dow-Mu Koh, S Aslam Sohaib, D Gareth Evans, Rosalind A Eeles
In the United Kingdom, current screening guidelines for TP53 germline mutation carriers solely recommends annual breast MRI, despite the wide spectrum of malignancies typically seen in this group. This study sought to investigate the role of one-off non-contrast whole-body MRI (WB MRI) in the screening of asymptomatic TP53 mutation carriers. 44 TP53 mutation carriers and 44 population controls were recruited. Scans were read by radiologists blinded to participant carrier status. The incidence of malignancies diagnosed in TP53 mutation carriers against general population controls was calculated...
January 16, 2017: Familial Cancer
https://www.readbyqxmd.com/read/28090007/ductal-carcinoma-in-situ-detected-during-prospective-mr-imaging-screening-of-a-woman-with-a-brca2-mutation-the-first-case-report-in-japan
#8
Mitsuhiro Tozaki, Seigo Nakamura, Dai Kitagawa, Takuji Iwase, Rie Horii, Futoshi Akiyama, Masami Arai
The present case is the first report in Japan in which a breast cancer was discovered as a result of prospective magnetic resonance imaging (MRI) screening study for BRCA1/2 mutation carriers who were free of breast or ovarian cancer. This case is significant and it verifies the importance of MRI screening in breast or ovarian cancer-free BRCA1/2 mutation carriers who do not exhibit positive mammographic or ultrasonographic findings.
January 13, 2017: Magnetic Resonance in Medical Sciences: MRMS
https://www.readbyqxmd.com/read/28079816/a-comparison-study-between-gross-tumor-volumes-defined-by-preoperative-magnetic-resonance-imaging-postoperative-specimens-and-tumor-bed-for-radiotherapy-after-breast-conserving-surgery
#9
Aiping Zhang, Jianbin Li, Wei Wang, Yongsheng Wang, Dianbin Mu, Zhaoqiu Chen, Qian Shao, Fengxiang Li
BACKGROUND: The identification and contouring of target volume is important for breast-conserving therapy. The aim of the study was to compare preoperative magnetic resonance imaging (MRI), postoperative pathology, excised specimens' (ES) size, and tumor bed (TB) delineation as methods for determining the gross tumor volume (GTV) for radiotherapy after breast-conserving surgery (BCS). METHODS: Thirty-three patients with breast cancer who underwent preoperative MRI and radiotherapy after BCS were enrolled...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28075622/imaging-surveillance-after-primary-breast-cancer-treatment
#10
Diana L Lam, Nehmat Houssami, Janie M Lee
OBJECTIVE: Current clinical guidelines are consistent in supporting annual mammography for women after treatment of primary breast cancer. Surveillance imaging beyond standard digital mammography, including digital breast tomosynthesis (DBT), breast ultrasound, and MRI, may improve outcomes. This article reviews the evidence on the performance and effectiveness of breast imaging modalities available for surveillance after treatment of sporadic unilateral primary breast cancer and identifies additional factors to be considered when selecting an imaging surveillance regimen...
January 11, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28070998/successful-treatment-of-accessory-breast-cancer-with-endocrine-therapy
#11
Chun-Xi Wang, Shu-Li Guo, Li-Na Han
Accessory breast cancers in males are extremely rare, and only a few cases have been reported in the literature. In this paper, an 87-year-old male patient was diagnosed with an accessory breast cancer by means of computed tomography (CT), magnetic resonance imaging (MRI), positron emission tomography-computed tomography (PET-CT), and immunohistochemistry based on needle biopsy, and has undergone successful resection and postoperative adjuvant endocrine therapy. He was the oldest male patient with an accessory breast cancer reported in the Chinese Hospital Knowledge Database and PubMed literature from 1975 to 2015...
2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/28070828/hypofractionated-stereotactic-radiosurgery-for-pituitary-metastases
#12
Haemin Chon, KyoungJun Yoon, Do Hoon Kwon, Chang Jin Kim, Min-Seon Kim, Young Hyun Cho
Pituitary metastases (PMs) are uncommon, representing only 1% of pituitary lesions. The diagnosis of PMs can be challenging and an optimal management remains to be determined. Here, we present a pilot clinical study on the efficacy and safety of hypofractionated stereotactic radiosurgery (SRS) with an optimized dosimetric plan in treating PMs. Between June 2013 and December 2014, seven consecutive patients (4 men and 3 women; median age 62 years) had been diagnosed with PMs based on their characteristic clinical and radiological features and subsequently treated using hypofractionated SRS...
January 9, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28068382/the-impact-of-pre-operative-breast-mri-on-surgical-waiting-time
#13
Michelle Zhang, Simon Sun, Benoît Mesurolle
PURPOSE: To assess the impact of pre-operative breast MRI on surgical waiting time, and to identify factors contributing to the delay. MATERIALS AND METHODS: A retrospective cohort study involving 1274 patients was conducted after obtaining institutional ethics review. Surgical candidates for newly diagnosed breast cancer from 2007 to 2013 at a tertiary center were divided into 2 groups: those who had pre-operative MRI and those who did not. Linear regression using matched populations was used to compare the surgical waiting times, defined as time from the date of the first positive biopsy to the date of surgery...
2017: PloS One
https://www.readbyqxmd.com/read/28067435/mr-imaging-findings-in-molecular-subtypes-of-breast-cancer-according-to-birads-system
#14
Lidia Navarro Vilar, Salvador Pascual Alandete Germán, Rosana Medina García, Esther Blanc García, Natalia Camarasa Lillo, José Vilar Samper
To evaluate magnetic resonance imaging (MRI) findings, according to Breast Imaging-Reporting and Data System (BI-RADS), and to relate them with molecular subtypes of breast cancer. The MRI findings were reviewed retrospectively in 201 women diagnosed of invasive breast cancer confirmed by surgery and were compared with the molecular subtypes. Following the BI-RADS, MRI findings included disease type, size, enhancement, morphology and contrast kinetics. In mass-like lesion types were studied shape, margin and enhancement, and in nonmass-like lesion types, distribution modifiers and internal enhancement...
January 9, 2017: Breast Journal
https://www.readbyqxmd.com/read/28066808/effect-of-mr-imaging-contrast-thresholds-on-prediction-of-neoadjuvant-chemotherapy-response-in-breast-cancer-subtypes-a-subgroup-analysis-of-the-acrin-6657-i-spy-1-trial
#15
Wen Li, Vignesh Arasu, David C Newitt, Ella F Jones, Lisa Wilmes, Jessica Gibbs, John Kornak, Bonnie N Joe, Laura J Esserman, Nola M Hylton
Functional tumor volume (FTV) measurements by dynamic contrast-enhanced magnetic resonance imaging can predict treatment outcomes for women receiving neoadjuvant chemotherapy for breast cancer. Here, we explore whether the contrast thresholds used to define FTV could be adjusted by breast cancer subtype to improve predictive performance. Absolute FTV and percent change in FTV (ΔFTV) at sequential time-points during treatment were calculated and investigated as predictors of pathologic complete response at surgery...
December 2016: Tomography: a Journal for Imaging Research
https://www.readbyqxmd.com/read/28058550/do-calcifications-seen-on-mammography-after-neoadjuvant-chemotherapy-for-breast-cancer-always-need-to-be-excised
#16
Yara Feliciano, Anita Mamtani, Monica Morrow, Michelle M Stempel, Sujata Patil, Maxine S Jochelson
BACKGROUND: This study aimed to determine the relationship between mammographic calcifications and magnetic resonance imaging (MRI) tumoral enhancement before and after neoadjuvant chemotherapy (NAC) and to assess the impact of these findings on surgical management. METHODS: This Institutional Review Board-approved, Health Insurance Portability and Accountability Act (HIPAA)-compliant retrospective study involved breast cancer patients who underwent NAC between 2009 and 2015...
January 5, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28053631/preoperative-magnetic-resonance-imaging-and-survival-outcomes-in-t1-2-breast-cancer-patients-who-receive-breast-conserving-therapy
#17
Jaegyu Ryu, Hyung Seok Park, Sanghwa Kim, Jee Ye Kim, Seho Park, Seung Il Kim
PURPOSE: The purpose of the study was to evaluate the effect of preoperative magnetic resonance imaging (MRI) on survival outcomes for breast cancer. METHODS: A total of 954 patients who had T1-2 breast cancer and received breast-conserving therapy (BCT) between 2007 and 2010 were enrolled. We divided the patients according to whether they received preoperative MRI or not. Survival outcomes, including locoregional recurrence-free survival (LRRFS), recurrence-free survival (RFS), and overall survival (OS), were analyzed...
December 2016: Journal of Breast Cancer
https://www.readbyqxmd.com/read/28051026/blood-oxygenation-level-dependent-magnetic-resonance-imaging-of-breast-cancer-correlation-with-carbonic-anhydrase-ix-and-vascular-endothelial-growth-factor
#18
Ying Wang, Min Liu, Mu-Lan Jin
BACKGROUND: Blood oxygenation level-dependent magnetic resonance imaging (BOLD-MRI) is a functional MRI technique which involves using the paramagnetic properties of deoxyhemoglobin to image the local tissue oxygen concentration. The purpose of this study was to investigate whether BOLD-MRI could evaluate hypoxia and angiogenesis of breast invasive ductal carcinoma (IDC). METHODS: Ninety-eight female patients with IDC were retrospectively included in this research...
2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28050694/survival-prediction-using-temporal-muscle-thickness-measurements-on-cranial-magnetic-resonance-images-in-patients-with-newly-diagnosed-brain-metastases
#19
Julia Furtner, Anna S Berghoff, Omar M Albtoush, Ramona Woitek, Ulrika Asenbaum, Daniela Prayer, Georg Widhalm, Brigitte Gatterbauer, Karin Dieckmann, Peter Birner, Bernadette Aretin, Rupert Bartsch, Christoph C Zielinski, Veronika Schöpf, Matthias Preusser
OBJECTIVES: To evaluate the prognostic relevance of temporal muscle thickness (TMT) in brain metastasis patients. METHODS: We retrospectively analysed TMT on magnetic resonance (MR) images at diagnosis of brain metastasis in two independent cohorts of 188 breast cancer (BC) and 247 non-small cell lung cancer (NSCLC) patients (overall: 435 patients). RESULTS: Survival analysis using a Cox regression model showed a reduced risk of death by 19% with every additional millimetre of baseline TMT in the BC cohort and by 24% in the NSCLC cohort...
January 3, 2017: European Radiology
https://www.readbyqxmd.com/read/28048932/th-b-204-03-tg-199-implanted-markers-for-radiation-treatment-verification
#20
Z Wang
: Implanted markers as target surrogates have been widely used for treatment verification, as they provide safe and reliable monitoring of the inter- and intra-fractional target motion. The rapid advancement of technology requires a critical review and recommendation for the usage of implanted surrogates in current field. The symposium, also reporting an update of AAPM TG 199 - Implanted Target Surrogates for Radiation Treatment Verification, will be focusing on all clinical aspects of using the implanted target surrogates for treatment verification and related issues...
June 2016: Medical Physics
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