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Breast cancer, MRI

Sung Eun Song, Min Sun Bae, Jung Min Chang, Nariya Cho, Han Suk Ryu, Woo Kyung Moon
BACKGROUND: Human epidermal growth factor receptor 2-positive (HER2+) breast cancer has two distinct subtypes according to hormone receptor (HR) status. Survival, pattern of recurrence, and treatment response differ between HR-/HER2+ and HR+/HER2+ cancers. PURPOSE: To investigate imaging and clinicopathologic features of HER2+ cancers and their correlation with HR expression. MATERIAL AND METHODS: Between 2011 and 2013, 252 consecutive patients with 252 surgically confirmed HER2+ cancers (125 HR- and 127 HR+) were included...
October 17, 2016: Acta Radiologica
Hyejin Cheon, Hye Jung Kim, Sang-Woo Lee, Do-Hoon Kim, Chang-Hee Lee, Seung Hyun Cho, Kyung Min Shin, So Mi Lee, Gab Chul Kim, Won Hwa Kim
PURPOSE: To evaluate the prevalence of and factors associated with internal mammary node (IMN) adenopathy on MRI and PET/CT used for initial staging in patients with operable breast cancer. METHODS: A total of 1320 patients diagnosed with invasive breast carcinoma between January 2011 and December 2015 underwent MRI and PET/CT for initial staging. The patients were considered to have IMN adenopathy when MRI revealed IMNs with the longest diameter of 5 mm or greater and a standardized uptake value greater than that of the mediastinal blood pool/contralateral parasternal area on PET/CT...
October 17, 2016: Breast Cancer Research and Treatment
Marco Krengli, Carla Pisani, Letizia Deantonio
The guidelines of the European and American Societies of Radiation Oncology (GEC-ESTRO and ASTRO) defined the selection criteria to offer partial breast irradiation (PBI) after lumpectomy in patients with low risk breast cancer regardless pre-operative staging. A recent publication by Tallet et al. explored the impact of preoperative magnetic resonance imaging (MRI) on patient eligibility for PBI. From their study, an ipsilateral BC was detected in 4% of patients, excluding these patients from intraoperative radiotherapy (IORT)...
September 2016: Journal of Thoracic Disease
Julie E Weiss, Martha Goodrich, Kimberly A Harris, Rachael E Chicoine, Marie B Synnestvedt, Steve J Pyle, Jane S Chen, Sally D Herschorn, Elisabeth F Beaber, Jennifer S Haas, Anna N A Tosteson, Tracy Onega
PURPOSE: To assess indication for examination for four breast imaging modalities and describe the complexity and heterogeneity of data sources and ascertainment methods. METHODS: Indication was evaluated among the Population-based Research Optimizing Screening through Personalized Regimens (PROSPR) breast cancer research centers (PRCs). Indication data were reported overall and separately for four breast imaging modalities: digital mammography (DM), digital breast tomosynthesis (DBT), ultrasound (US), and magnetic resonance imaging (MRI)...
October 12, 2016: Journal of the American College of Radiology: JACR
Ghaith Habboub, Mayur Sharma, Gene H Barnett, Alireza M Mohammadi
BACKGROUND: Minimally-invasive approaches are attractive alternative to standard craniotomy for large intracranial tumors with potentially lesser morbidity. In this report, we describe a sequential combination of two minimally-invasive surgical techniques to treat a large intracranial tumor. CLINICAL PRESENTATION: A 49year-old woman presented with a history of breast cancer and large left parietal metastasis with significant perilesional edema. This was initially managed by whole brain radiation therapy and stereotactic radiosurgery...
October 11, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Samata Kakkad, Jiangyang Zhang, Alireza Akhbardeh, Desmond Jacob, Balaji Krishnamachary, Meiyappan Solaiyappan, Michael A Jacobs, Venu Raman, Dieter Leibfritz, Kristine Glunde, Zaver M Bhujwalla
Collagen 1 (Col1) fibers play an important role in tumor interstitial macromolecular transport and cancer cell dissemination. Our goal was to understand the influence of Col1 fibers on water diffusion, and to examine the potential of using noninvasive diffusion tensor imaging (DTI) to indirectly detect Col1 fibers in breast lesions. We previously observed, in human MDA-MB-231 breast cancer xenografts engineered to fluoresce under hypoxia, relatively low amounts of Col1 fibers in fluorescent hypoxic regions...
October 2016: Neoplasia: An International Journal for Oncology Research
A Collarino, R A Valdés Olmos, A F van der Hoeven, L M Pereira Arias-Bouda
PURPOSE: This review aims to discuss the methodological aspects of dedicated molecular breast imaging (MBI) using (99m)Tc-sestamibi as radiotracer to guide biopsy of occult or unclear breast lesions on mammography (MG) and ultrasound (US) that are suspicious on MBI (BI-RADS criteria 4 and 5), including its advantages, limitations and future clinical applications. METHODS: Literature search was performed using the PubMed/MEDLINE database and "(99m)Tc-sestamibi", "biopsy" and "breast cancer" as keywords...
2016: Clinical and Translational Imaging: Reviews in Nuclear Medicine and Molecular Imaging
Robert J Gillies, Thomas Beyer
Over the past decades, imaging in oncology has been undergoing a "quiet" revolution to treat images as data, not as pictures. This revolution has been sparked by technological advances that enable capture of images that reflect not only anatomy, but also of tissue metabolism and physiology in situ Important advances along this path have been the increasing power of MRI, which can be used to measure spatially dependent differences in cell density, tissue organization, perfusion, and metabolism. In parallel, PET imaging allows quantitative assessment of the spatial localization of positron-emitting compounds, and it has also been constantly improving in the number of imageable tracers to measure metabolism and expression of macromolecules...
October 11, 2016: Cancer Research
Haralampos Bougias, Abraham Ghiatas, Dimitrios Priovolos, Konstantia Veliou, Alexandra Christou
OBJECTIVES: To prospectively assess the role of whole-lesion apparent diffusion coefficient (ADC) metrics in the characterization of breast tumors by comparing ADC value with ADC entropy. METHODS: 49 patients with 53 breast lesions underwent phased-array breast coil 1.5T-magnetic resonance imaging (MRI). Two experienced radiologists on breast MRI, blinded to the final diagnosis, reviewed the ADC maps and placed a volume-of-interest (VOI) on all slices including each lesion on the ADC map to obtain whole-lesion mean ADC value and ADC entropy...
October 10, 2016: British Journal of Radiology
Y J Park, M J Kim, H J Moon, E-K Kim, J H Yoon
AIM: To evaluate the role of ultrasound (US) following magnetic resonance imaging (MRI) and mammography in patients with newly diagnosed breast cancers by assessing the additional cancer detection rate of US. MATERIAL AND METHODS: Two hundred and twenty-five women who had undergone 225 MRI examinations followed by US were included. An US-detected additional cancer was defined as a lesion detected using breast US that had not been detected by MRI, and which was shown to be malignant at histopathology...
October 3, 2016: Clinical Radiology
Seung Wook Ryu, Ken Ho, Sandra A O'Toole, Alison Green, Hae Won Kim
Male breast cancers (MBC) are rare, accounting for <1% of all breast cancers. The use of magnetic resonance imaging (MRI) for male breast cancer is not generally indicated. We present an unusual case where conventional imaging for a suspected MBC was equivocal and MRI was required to assist in diagnosis.
October 5, 2016: Journal of Medical Imaging and Radiation Oncology
Savannah C Partridge, Noam Nissan, Habib Rahbar, Averi E Kitsch, Eric E Sigmund
: Diffusion-weighted MRI (DWI) holds potential to improve the detection and biological characterization of breast cancer. DWI is increasingly being incorporated into breast MRI protocols to address some of the shortcomings of routine clinical breast MRI. Potential benefits include improved differentiation of benign and malignant breast lesions, assessment and prediction of therapeutic efficacy, and noncontrast detection of breast cancer. The breast presents a unique imaging environment with significant physiologic and inter-subject variations, as well as specific challenges to achieving reliable high quality diffusion-weighted MR images...
September 30, 2016: Journal of Magnetic Resonance Imaging: JMRI
L Li, R Roth, P Germaine, S Ren, M Lee, K Hunter, E Tinney, L Liao
OBJECTIVE: The purpose of this study was to retrospectively compare the diagnostic performance of contrast-enhanced spectral mammography (CESM) with that of breast magnetic resonance imaging (BMRI) in breast cancer detection using parameters, including sensitivity, positive predictive value (PPV), lesion size, morphology, lesion and background enhancement, and examination time. MATERIALS AND METHODS: A total of 48 women (mean age, 56years±10.6 [SD]) with breast lesions detected between October 2012 and March 2014 were included...
September 26, 2016: Diagnostic and Interventional Imaging
Kevin J Ray, James R Larkin, Yee K Tee, Alexandre A Khrapitchev, Gogulan Karunanithy, Michael Barber, Andrew J Baldwin, Michael A Chappell, Nicola R Sibson
The purpose of this study was to develop realistic phantom models of the intracellular environment of metastatic breast tumour and naïve brain, and using these models determine an analysis metric for quantification of CEST MRI data that is sensitive to only labile proton exchange rate and concentration. The ability of the optimal metric to quantify pH differences in the phantoms was also evaluated. Novel phantom models were produced, by adding perchloric acid extracts of either metastatic mouse breast carcinoma cells or healthy mouse brain to bovine serum albumin...
September 30, 2016: NMR in Biomedicine
Jung Kyu Ryu, Sun Jung Rhee, Jeong Yoon Song, Soo Hyun Cho, Geon-Ho Jahng
The purpose of this study was to compare the characteristics of quantitative per-fusion parameters obtained from dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) in patients with mammographically occult (MO) breast cancers and those with mammographically visible (MV) breast cancers. Quantitative parameters (AUC, Ktrans, kep, ve, vp, and wi) from 13 MO breast cancers and 16 MV breast cancers were mapped after the DCE-MRI data were acquired. Various prog-nostic factors, including axillary nodal status, estrogen receptor (ER), progesterone receptor (PR), Ki-67, p53, E-cadherin, and human epidermal growth factor receptor 2 (HER2) were obtained in each group...
2016: Journal of Applied Clinical Medical Physics
Payam Azadeh, Babak Hassanzadeh Rad, Ali Yaghobi Joybari
No abstract text is available yet for this article.
April 2016: Iranian Journal of Radiology: a Quarterly Journal Published By the Iranian Radiological Society
John S Kennedy, Patrick A Robbins
Breast MRI is being used more frequently for advanced screening for breast cancer. Patients may be at increased risk, or are symptomatic, with nonsuspicious mammograms. There is little data regarding the likelihood of a recommendation for biopsy, or for detecting a malignancy, in this population. We intended to determine the malignancy rate, number needed to treat, and positive predictive value for patients receiving adjunctive MRI at our institution. A retrospective review of all breast MRIs from 2008 to 2010 was done...
September 2016: American Surgeon
Elena Laakmann, Isabell Witzel, Verena Scriba, Ulrich Grzyska, Christine Zu Eulenburg, Nicole Burchardi, Tobias Hesse, Florian Würschmidt, Tanja Fehm, Volker Möbus, Gunter von Minckwitz, Sibylle Loibl, Tjoung-Won Park-Simon, Volkmar Mueller
Evidence about distribution patterns of brain metastases with regard to breast cancer subtypes and its influence on the prognosis of patients is insufficient. Clinical data, cranial computed tomography (CT) and magnetic resonance imaging (MRI) scans of 300 breast cancer patients with brain metastases (BMs) were collected retrospectively in four centers participating in the Brain Metastases in Breast Cancer Registry (BMBC) in Germany. Patients with positive estrogen (ER), progesterone (PR), or human epidermal growth factor receptor 2 (HER2) statuses, had a significantly lower number of BMs at diagnosis...
2016: International Journal of Molecular Sciences
Israel Barco, Carolina Chabrera, Antonio García-Fernández, Manel Fraile, MCarmen Vidal, Sonia González, Jose María Lain, Assumpta Reñé, Lidia Canales, Elena Vallejo, Jordi Deu, Antoni Pessarrodona, Nuria Giménez, Marc García-Font
OBJECTIVE: The last few years have witnessed a significant increase in the preoperative use of Magnetic Resonance Imaging (MRI) for staging purposes in breast cancer (BC) patients. Many studies have confirmed the improvement that MRI can provide in terms of diagnostic assessment, especially with regard to additional disease foci. In the present study, we address the advantages and disadvantages of MRI in the preoperative setting for BC patients. PATIENTS AND METHODS: There were 1513 consecutive breast MRI studies performed in patients with either primary or recurrent BC, who were scheduled for surgery...
October 2016: European Journal of Radiology
Can Onaygil, Handan Kaya, Mustafa Umit Ugurlu, Erkin Aribal
PURPOSE: To evaluate the diagnostic performances of the diffusion tensor imaging (DTI) parameters in the diagnosis of breast cancer and to investigate the variations in DTI parameters according to the breast cancer biomarkers. MATERIALS AND METHODS: At 3.0 Tesla (T), DTI was performed in 85 patients with 92 enhancing breast lesions. λ1 , λ2 , λ3 , mean diffusivity (MD), radial diffusivity (RD), fractional anisotropy (FA), relative anisotropy (RA), and geodesic anisotropy (GA) were studied and compared with diffusion-weighted imaging-derived apparent diffusion coefficient...
September 23, 2016: Journal of Magnetic Resonance Imaging: JMRI
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