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https://www.readbyqxmd.com/read/28187373/impact-of-selective-use-of-breast-mri-on-surgical-decision-making-in-women-with-newly-diagnosed-operable-breast-cancer
#1
Meagan E Brennan, Merran McKessar, Kylie Snook, Ian Burgess, Andrew J Spillane
BACKGROUND: This study evaluated the impact of breast MRI on surgical planning in selected cases of breast malignancy (invasive cancer or DCIS). MRI was used when there was ambiguity on clinical and/or conventional imaging assessment. METHODS: Consecutive women with breast malignancy undergoing breast MRI were included. Clinical, mammogram and ultrasound findings and surgical plan before and after MRI were recorded. MRI findings and histopathology results were documented and the impact of MRI on treatment planning was evaluated...
February 7, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28181343/apparent-diffusion-coefficient-values-may-help-predict-which-mri-detected-high-risk-breast-lesions-will-upgrade-at-surgical-excision
#2
Safia Cheeney, Habib Rahbar, Brian N Dontchos, Sara H Javid, Mara H Rendi, Savannah C Partridge
PURPOSE: To investigate whether diffusion-weighted imaging (DWI) features could assist in determining which high-risk lesions identified on dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) and diagnosed on core needle biopsy (CNB) will upgrade to malignancy on surgical excision. MATERIALS AND METHODS: This Institutional Review Board (IRB)-approved prospective study included participants with MRI-detected Breast Imaging Reporting and Data System (BI-RADS) 4 or 5 lesions with high-risk pathology on CNB who underwent surgical excision...
February 9, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28173727/differentiation-of-ductal-carcinoma-in-situ-versus-fibrocystic-changes-by-magnetic-resonance-imaging-are-there-pathognomonic-imaging-features
#3
Matthias Dietzel, Clemens G Kaiser, Evelyn Wenkel, Paola Clauser, Michael Uder, Rüdiger Schulz-Wendtland, Pascal At Baltzer
Background In breast magnetic resonance imaging (MRI), the diagnosis of ductal carcinoma in situ (DCIS) remains controversial; the most challenging cause of false-positive DCIS diagnosis is fibrocystic changes (FC). Purpose To search for typical and pathognomonic patterns of DCIS and FC using a standard clinical MRI protocol. Material and Methods Consecutive patients scheduled for breast MRI (standardized protocols @ 1.5T: dynamic-T1-GRE before/after Gd-DTPA [0.1 mmol/kg body weight (BW)]; T1-TSE), with subsequent pathological sampling, were investigated...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28170371/imaging-tests-in-staging-and-surveillance-of-non-metastatic-breast-cancer-changes-in-routine-clinical-practice-and-cost-implications
#4
S De Placido, C De Angelis, M Giuliano, C Pizzi, R Ruocco, V Perrone, D Bruzzese, G Tommasielli, M De Laurentiis, S Cammarota, G Arpino, G Arpino
BACKGROUND: Although guidelines do not recommend computerised tomography (CT), positron emission tomography (PET) or magnetic resonance imaging (MRI) for the staging or follow-up of asymptomatic patients with non-metastatic breast cancer, they are often requested in routine clinical practice. The aim of this study was to determine the staging and follow-up patterns, and relative costs in a large population of breast cancer patients living and treated in a Southern Italian region. METHODS: We analysed the clinical computerised information recorded by 567 primary-care physicians assisting about 650 000 inhabitants in the Campania region...
February 7, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28169313/visualization-of-tumor-related-blood-vessels-in-human-breast-by-photoacoustic-imaging-system-with-a-hemispherical-detector-array
#5
M Toi, Y Asao, Y Matsumoto, H Sekiguchi, A Yoshikawa, M Takada, M Kataoka, T Endo, N Kawaguchi-Sakita, M Kawashima, E Fakhrejahani, S Kanao, I Yamaga, Y Nakayama, M Tokiwa, M Torii, T Yagi, T Sakurai, K Togashi, T Shiina
Noninvasive measurement of the distribution and oxygenation state of hemoglobin (Hb) inside the tissue is strongly required to analyze the tumor-associated vasculatures. We developed a photoacoustic imaging (PAI) system with a hemispherical-shaped detector array (HDA). Here, we show that PAI system with HDA revealed finer vasculature, more detailed blood-vessel branching structures, and more detailed morphological vessel characteristics compared with MRI by the use of breast shape deformation of MRI to PAI and their fused image...
February 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28157381/informing-women-and-their-physicians-about-recommendations-for-adjunct-breast-mri-screening-a-cohort-study
#6
John T Brinton, Lora D Barke, Mary E Freivogel, Tiffany C Talley, Michelle D Lexin, Alicia L Drew, Rachel B Beam, Deborah H Glueck
It is unclear how best to communicate recommendations for breast cancer screening with MRI as an adjunct to mammography for women at high risk. This study compares the rates of breast MRI screening for two different methods of communication. The retrospective IRB-approved cohort study was conducted at Invision Sally Jobe Breast Centers (ISJBC). ISJBC provided Gail model risk assessment to all women presenting for screening mammography. Women with scores ≥ 19.6% were considered to be high risk. Over 2 years, ISJBC used two different methods to inform women at elevated lifetime risk and their physicians about recommendations for adjunct MRI screening (N = 561, mean age = 52 years, s...
February 3, 2017: Health Communication
https://www.readbyqxmd.com/read/28152879/contralateral-prophylactic-mastectomy-decision-making-in-the-population-based-icancare-study-of-early-stage-breast-cancer-patients
#7
Sarah T Hawley, Kent A Griffith, Nancy K Janz, Allison W Kurian, Kevin C Ward, Ann S Hamilton, Steven J Katz, Monica Morrow
: 177 Background: Contralateral prophylactic mastectomy (CPM) use is increasing in women who are not at increased risk of contralateral cancer development and will experience no survival benefit from the more morbid procedure. Little is known about treatment decision-making or provider interactions. METHODS: We surveyed a weighted random sample of newly diagnosed patients with early-stage breast cancer who were treated in 2013-14, identified through the population-based SEER registries of Los Angeles and Georgia about 3 months after surgical treatment, and merged with SEER data (N=2632, RR=70%), to determine receipt of diagnostic tests and factors related to the decision about surgery (including knowledge and perceived physician recommendation)...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28139203/mri-and-fdg-pet-ct-based-assessment-of-axillary-lymph-node-metastasis-in-early-breast-cancer-a-meta-analysis
#8
X Liang, J Yu, B Wen, J Xie, Q Cai, Q Yang
AIM: To evaluate the accuracy of magnetic resonance imaging (MRI) and combined 2-[(18)F]-fluoro-2-deoxy-d-glucose (FDG) positron-emission tomography/computed tomography (PET/CT) for N staging of breast cancer. MATERIALS AND METHODS: A search for relevant diagnostic studies published between January 2008 and October 2015 was conducted in the MEDLINE and EMBASE databases. The quality of the studies was assessed using Quality Assessment of Diagnostic Accuracy Studies (QUADAS) criteria...
January 27, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28138893/systematic-development-of-an-abbreviated-protocol-for-screening-breast-magnetic-resonance-imaging
#9
David A Strahle, Dorothy R Pathak, Arlene Sierra, Sukamal Saha, Catherine Strahle, Kiran Devisetty
RATIONALE & OBJECTIVES: We sought to develop an abbreviated protocol (AP) for breast MRI that maximizes lesion detection by assessing each lesion not seen on mammography by each acquisition from a full diagnostic protocol (FDP). MATERIALS & METHODS: 671 asymptomatic women (mean 55.7 years, range 40-80) with a negative mammogram were prospectively enrolled in this IRB approved study. All lesions on MRI not visualized on mammography were analyzed, reported, and suspicious lesions biopsied...
January 30, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28133745/technical-note-development-of-a-combined-molecular-breast-imaging-ultrasound-system-for-diagnostic-evaluation-of-mbi-detected-lesions
#10
Michael K O'Connor, Melissa M Morrow, Thuy Tran, Carrie B Hruska, Amy L Conners, Katie N Hunt
PURPOSE: The purpose of this study was to perform a pilot evaluation of an integrated molecular breast imaging/ultrasound (MBI/US) system designed to enable, in real-time, the registration of US to MBI and diagnostic evaluation of breast lesions detected on MBI. METHODS: The MBI/US system was constructed by modifying an existing dual-head cadmium zinc telluride (CZT)-based MBI gamma camera. The upper MBI detector head was replaced with a mesh panel, which allowed an ultrasound probe to access the breast...
December 9, 2016: Medical Physics
https://www.readbyqxmd.com/read/28130619/is-routine-axillary-imaging-necessary-in-clinically-node-negative-patients-undergoing-neoadjuvant-chemotherapy
#11
Andrea V Barrio, Anita Mamtani, Anne Eaton, Sandra Brennan, Michelle Stempel, Monica Morrow
BACKGROUND: The National Comprehensive Cancer Network guidelines recommend axillary imaging prior to neoadjuvant chemotherapy (NAC) in breast cancer patients who are clinically node negative (cN0) by physical examination. However, the benefit of this approach remains uncertain. The purpose of this study was to determine whether abnormal axillary imaging pre-NAC predicts nodal metastases post-NAC (ypN+) in cN0 patients. METHODS: cN0 patients undergoing NAC followed by axillary surgery were identified...
March 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28111130/added-value-of-breast-mri-for-preoperative-diagnosis-of-ductal-carcinoma-in-situ-diagnostic-performance-on-362-patients
#12
Antonella Petrillo, Roberta Fusco, Mario Petrillo, Flavia Triunfo, Salvatore Filice, Paolo Vallone, Sergio Venanzio Setola, Mariarosaria Rubulotta, Maurizio Di Bonito, Massimo Rinaldo, Massimiliano D'Aiuto, Arturo Brunetti
INTRODUCTION: The purpose of this study was to evaluate the added value of breast magnetic resonance imaging (MRI) in preoperative diagnosis of ductal carcinoma in situ (DCIS). We reviewed our institution database of 3499 consecutive patients treated for breast cancer. PATIENTS AND METHODS: A total of 362 patients with histologically proven DCIS were selected from the institutional database. Of these, 245 (67.7%) preoperatively underwent conventional imaging (CI) (mammography/ultrasonography) (CI group), and 117 (32...
December 29, 2016: Clinical Breast Cancer
https://www.readbyqxmd.com/read/28070828/hypofractionated-stereotactic-radiosurgery-for-pituitary-metastases
#13
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/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
#14
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/28048929/su-c-207b-04-automated-segmentation-of-pectoral-muscle-in-mr-images-of-dense-breasts
#15
E Verburg, S N de Waard, W B Veldhuis, C H van Gils, Kga Gilhuijs
PURPOSE: To develop and evaluate a fully automated method for segmentation of the pectoral muscle boundary in Magnetic Resonance Imaging (MRI) of dense breasts. METHODS: Segmentation of the pectoral muscle is an important part of automatic breast image analysis methods. Current methods for segmenting the pectoral muscle in breast MRI have difficulties delineating the muscle border correctly in breasts with a large proportion of fibroglandular tissue (i.e., dense breasts)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048384/su-d-207b-06-predicting-breast-cancer-malignancy-on-dce-mri-data-using-pre-trained-convolutional-neural-networks
#16
N Antropova, B Huynh, M Giger
PURPOSE: We investigate deep learning in the task of distinguishing between malignant and benign breast lesions on dynamic contrast-enhanced MR images (DCE-MRIs), eliminating the need for lesion segmentation and extraction of tumor features. We evaluate convolutional neural network (CNN) after transfer learning with ImageNet, a database of thousands of non-medical images. METHODS: Under a HIPAA-compliant IRB protocol, a database of 551 (357 malignant and 194 benign) breast MRI cases was collected...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048140/mo-fg-campus-jep2-05-mri-guided-single-fraction-boost-delivery-on-individual-axillary-lymph-nodes
#17
T C F van Heijst, N Hoekstra, M E P Philippens, D Eschbach, J J W Lagendijk, H J G D van den Bongard, B van Asselen
PURPOSE: The Utrecht MRI-linac (MRL) design enables new MR-guided radiotherapy (RT) approaches. This is a feasibility study for a single-fraction high dose (boost) to individual lymph nodes (LNs) in breast-cancer patients, after breast-conserving surgery (BCS) and hypofractionated whole-breast irradiation (WBI) with conventional axillary RT (AxRT). METHODS: After written informed consent, 5 breast-cancer patients (cT1-3N0) were enrolled (NL500460.041.14 trial) and underwent 1...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047704/su-g-jep2-05-dose-effects-of-a-1-5t-magnetic-field-on-air-tissue-and-lung-tissue-interfaces-in-mri-guided-radiotherapy
#18
Xinfeng Chen, Phillip Prior, Guangpei Chen, Christopher Schultz, X Allen Li
PURPOSE: The purpose of the study is to investigate the dose effects of electron-return-effect (ERE) at air-tissue and lung-tissue interfaces under a 1.5T transverse-magnetic-field (TMF). METHODS: IMRT and VMAT plans for representative pancreas, lung, breast and head & neck (H&N) cases were generated following clinical dose volume (DV) criteria. The air-cavity walls, as well as the lung wall, were delineated to examine the ERE. In each case, the original plan generated without TMF is compared with the reconstructed plan (generated by recalculating the original plan with the presence of TMF) and the optimized plan (generated by a full optimization with TMF), using a variety of DV parameters, including V100%, D95% and dose heterogeneity index for PTV, Dmax, and D1cc for OARs (organs at risk) and tissue interface...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046969/su-d-207b-04-morphological-features-of-mri-as-a-correlate-of-capsular-contracture-in-breast-cancer-patients-with-implant-based-reconstructions
#19
N Tyagi, E Sutton, M Hunt, A Apte, J Zhang, J Oh, J Mechalakos, B Mehrara, E Matros, A Ho
PURPOSE: Capsular contracture (CC) is a serious complication in patients receiving implant-based reconstruction for breast cancer. The goal of this study was to identify image-based correlates of CC using MRI imaging in breast cancer patients who received both MRI and clinical evaluation following reconstructive surgery. METHODS: We analyzed a retrospective dataset of 50 patients who had both a diagnostic MR and a plastic surgeon's evaluations of CC score (Baker's score) within a six month period following mastectomy and reconstructive surgery...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046496/tu-h-bra-09-relationship-between-b0-and-the-contrast-to-noise-ratio-cnr-of-tumour-to-background-for-mri-radiotherapy-hybrids
#20
K Wachowicz, N DeZanche, E Yip, V Volotovskyy, B Fallone
PURPOSE: To investigate the relationship in MRI between B0 and the contrast-to-noise ratio (CNR) of various tumour/normal tissue pairs. This study is motivated by the current interest in MRI/radiotherapy hybrids, for which multiple magnetic field strengths have been proposed. CNR is the single most important parameter governing the ability of a system to identify a tumour in real time for treatment guidance. The MRI community has long since recognized that the SNR of a well-designed MR system is roughly proportional to B0 , the polarizing magnetic field...
June 2016: Medical Physics
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