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https://www.readbyqxmd.com/read/28432730/assessment-of-voluntary-deep-inspiration-breath-hold-with-cine-imaging-for-breast-radiotherapy
#1
Reuben Patrick Estoesta, Lani Attwood, Diana Naehrig, Elizabeth Claridge-Mackonis, David Odgers, Darren Martin, Melissa Pham, Joanne Toohey, Susan Carroll
Deep Inspiration Breath-Hold (DIBH) techniques for breast cancer radiation therapy (RT) have reduced cardiac dose compared to Free Breathing (FB). Recently, a voluntary deep inspiration breath-hold (vDIBH) technique was established using in-room lasers and skin tattoos to monitor breath-hold. An in-house quality assessment of positional reproducibility during RT delivery with vDIBH in patients with left-sided breast cancer was evaluated. The electronic portal imaging device (EPID) was used in cinematographic (CINE) mode to capture a sequence of images during beam delivery...
April 22, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28432515/mri-predicts-pathologic-complete-response-in-her2-positive-breast-cancer-after-neoadjuvant-chemotherapy
#2
Mette S van Ramshorst, Claudette E Loo, Emilie J Groen, Gonneke H Winter-Warnars, Jelle Wesseling, Frederieke van Duijnhoven, Marie-Jeanne T Vrancken Peeters, Gabe S Sonke
BACKGROUND: Neoadjuvant treatment of HER2-positive breast cancer frequently leads to a pathologic complete response (pCR), which is associated with favourable long-term outcome. Treatment regimens typically consist of 6-9 cycles of trastuzumab-based chemotherapy, although many patients achieve early radiologic complete response (rCR). If rCR accurately predicts pCR, the number of chemotherapy cycles can possibly be reduced. METHODS: We performed a diagnostic accuracy study to determine the association between rCR and pCR in patients with stage II-III HER2-positive breast cancer treated with neoadjuvant trastuzumab-based chemotherapy at the Netherlands Cancer Institute...
April 21, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28430742/utility-of-single-photon-emission-tomography-computed-tomography-for-sentinel-lymph-node-localization-in-breast-cancer-patients
#3
Agnieszka Giżewska, Ewa Witkowska-Patena, Sebastian Osiecki, Andrzej Mazurek, Zofia Stembrowicz-Nowakowska, Mirosław Dziuk
OBJECTIVES: Sentinel lymph node (SLN) mapping is currently a routine technique in breast cancer management and preoperative scintigraphic imaging plays a crucial role in the process of SLN detection. The guidelines recommend performing planar acquisition and optional single-photon emission tomography/computed tomography (SPECT/CT) imaging. The aim of this study was to verify whether routine performing of SPECT/CT in addition to planar imaging increases the sensitivity of SLN detection in patients with early-stage breast cancer...
April 20, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28430555/beyond-wires-and-seeds-reflector-guided-breast-lesion-localization-and-excision
#4
Victoria L Mango, Ralph T Wynn, Sheldon Feldman, Lauren Friedlander, Elise Desperito, Sejal N Patel, Ameer Gomberawalla, Richard Ha
Purpose To evaluate outcomes of Savi Scout (Cianna Medical, Aliso Viejo, Calif) reflector-guided localization and excision of breast lesions by analyzing reflector placement, localization, and removal, along with target excision and rates of repeat excision (referred to as re-excision). Materials and Methods A single-institution retrospective review of 100 women who underwent breast lesion localization and excision by using the Savi Scout surgical guidance system from June 2015 to May 2016 was performed. By using image guidance 0-8 days before surgery, 123 nonradioactive, infrared-activated, electromagnetic wave reflectors were percutaneously inserted adjacent to or within 111 breast targets...
April 21, 2017: Radiology
https://www.readbyqxmd.com/read/28429207/organizational-and-welfare-mode-of-breast-centers-network-a-survey-of-sicilian-radiologists
#5
Maria Adele Marino, Orazio Pennisi, Annalisa Donia, Carmelo Sofia, Claudio Guerra, Carmelo Privitera, Placido Romeo
The European Society of Breast Cancer Specialists has created quality indicators for breast units to establish the minimum standards of care for patients. In Italy, each region differs, indeed, in terms of health care and services warranted to patients suffering from breast cancer. Since Sicilian Regional Administration today is still disregarding implementation of the provisions contained in the proposal of the Ministry of Health entitled "Guidelines on Organizational and Health Care Methods of Breast Centers Network" in November 2015 the Sicilian Regional Group of the Italian Society of Radiology (SIRM) decided to carry out a survey to see the position of the Sicilian Healthcare System and define the gap to bridge over...
April 20, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28429195/computer-assisted-diagnosis-system-for-breast-cancer-in-computed-tomography-laser-mammography-ctlm
#6
Afsaneh Jalalian, Syamsiah Mashohor, Rozi Mahmud, Babak Karasfi, M Iqbal Saripan, Abdul Rahman Ramli
Computed tomography laser mammography (Eid et al. Egyp J Radiol Nucl Med, 37(1): p. 633-643, 1) is a non-invasive imaging modality for breast cancer diagnosis, which is time-consuming and challenging for the radiologist to interpret the images. Some issues have increased the missed diagnosis of radiologists in visual manner assessment in CTLM images, such as technical reasons which are related to imaging quality and human error due to the structural complexity in appearance. The purpose of this study is to develop a computer-aided diagnosis framework to enhance the performance of radiologist in the interpretation of CTLM images...
April 20, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28428663/magnetic-resonance-imaging-in-the-preoperative-evaluation-of-breast-cancer-patients
#7
EDITORIAL
Cristine Norwig Galvão
No abstract text is available yet for this article.
March 2017: Radiologia Brasileira
https://www.readbyqxmd.com/read/28428649/role-of-magnetic-resonance-imaging-in-the-planning-of-breast-cancer-treatment-strategies-comparison-with-conventional-imaging-techniques
#8
Luciana Karla Lira França, Almir Galvão Vieira Bitencourt, Hugo Lamartine Souza Paiva, Caroline Baptista Silva, Nara Pacheco Pereira, Jociana Paludo, Luciana Graziano, Camila Souza Guatelli, Juliana Alves de Souza, Elvira Ferreira Marques
OBJECTIVE: To assess the role of magnetic resonance imaging (MRI) in the planning of breast cancer treatment strategies. MATERIALS AND METHODS: The study included 160 women diagnosed with breast cancer, who underwent breast MRI for preoperative staging. Using Pearson's correlation coefficient (r), we compared the size of the primary tumor, as determined by MRI, by conventional imaging (mammography and ultrasound), and in the pathological examination (gold standard)...
March 2017: Radiologia Brasileira
https://www.readbyqxmd.com/read/28427629/development-of-a-novel-folate-modified-nanobubbles-with-improved-targeting-ability-to-tumor-cells
#9
Sujuan Duan, Lu Guo, Dandan Shi, Mengmeng Shang, Dong Meng, Jie Li
Conjugation of folate (FOL) to nanobubbles could enhance the selective targeting to tumors expressing high levels of folate receptor (FR). To further improve the selective targeting ability of FOL-modified nanobubbles, a novel FOL-targeted nanobubble ((FOL)2-NB) with increasing FOL content (accomplished by linking two FOL molecules per DSPE-PEG2000 chain) was synthesized, through the methods of mechanical shaking and low-speed centrifugation based on lipid-stabilized perfluoropropane. The bubble size and distribution range were measured by dynamic light scattering (DLS)...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28427271/the-value-of-pre-and-post-neoadjuvant-chemotherapy-f-18-fdg-pet-ct-scans-in-breast-cancer-comparison-with-mri
#10
Eun Kyoung Choi, Ie Ryung Yoo, Sung Hun Kim, Sonya Youngju Park, Joo Hyun O, Bong Joo Kang
Background Accurate assessment of neoadjuvant chemotherapy (NAC) response with positron emission tomography/computed tomography (PET/CT) or magnetic resonance imaging (MRI) may provide appropriate operation guidelines for individual breast cancer patients. Purpose To compare the values of PET/CT and MRI for response evaluation following NAC in breast cancer patients. Material and Methods Thirty-three consecutive patients who underwent NAC were included. PET/CT and MRI were performed before and one to four weeks after NAC...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28426134/metastasis-detection-from-whole-slide-images-using-local-features-and-random-forests
#11
Mira Valkonen, Kimmo Kartasalo, Kaisa Liimatainen, Matti Nykter, Leena Latonen, Pekka Ruusuvuori
Digital pathology has led to a demand for automated detection of regions of interest, such as cancerous tissue, from scanned whole slide images. With accurate methods using image analysis and machine learning, significant speed-up, and savings in costs through increased throughput in histological assessment could be achieved. This article describes a machine learning approach for detection of cancerous tissue from scanned whole slide images. Our method is based on feature engineering and supervised learning with a random forest model...
April 20, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28425822/association-of-hepatic-vein-lipiodol-tram-track-sign-during-transcatheter-arterial-chemoembolization-with-perioperative-death
#12
Hongwei Zhao, Fuquan Liu, Zhendong Yue, Lei Wang, Zhenhua Fan, Fuliang He
Objective To assess the relationship between the hepatic vein Lipiodol tram-track sign during transcatheter arterial chemoembolization (TACE) and perioperative death. Methods Patients treated for hepatic carcinoma at the Beijing Shijitan Hospital, Capital Medical University from January 2010 to December 2015 were retrospectively evaluated. The patients underwent hepatic TACE with Lipiodol. The incidence of the hepatic vein Lipiodol tram-track sign, prognosis, and possible risk factors were analyzed. Results A total of 5372 patients underwent hepatic TACE and had complete available intraoperative imaging data...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28424464/-18-f-tetrafluoroborate-pet-ct-enables-sensitive-tumor-and-metastasis-in-vivo-imaging-in-a-sodium-iodide-symporter-expressing-tumor-model
#13
S Diocou, A Volpe, M Jauregui-Osoro, M Boudjemeline, K Chuamsaamarkkee, F Man, P J Blower, T Ng, G E D Mullen, G O Fruhwirth
Cancer cell metastasis is responsible for most cancer deaths. Non-invasive in vivo cancer cell tracking in spontaneously metastasizing tumor models still poses a challenge requiring highest sensitivity and excellent contrast. The goal of this study was to evaluate if the recently introduced PET radiotracer [(18)F]tetrafluoroborate ([(18)F]BF4(-)) is useful for sensitive and specific metastasis detection in an orthotopic xenograft breast cancer model expressing the human sodium iodide symporter (NIS) as a reporter...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28423171/identification-of-patients-with-documented-pathologic-complete-response-in-the-breast-after-neoadjuvant-chemotherapy-for-omission-of-axillary-surgery
#14
Audree B Tadros, Wei T Yang, Savitri Krishnamurthy, Gaiane M Rauch, Benjamin D Smith, Vicente Valero, Dalliah M Black, Anthony Lucci, Abigail S Caudle, Sarah M DeSnyder, Mediget Teshome, Carlos H Barcenas, Makesha Miggins, Beatriz E Adrada, Tanya Moseley, Rosa F Hwang, Kelly K Hunt, Henry M Kuerer
Importance: A pathologic complete response (pCR; no invasive or in situ cancer) occurs in 40% to 50% of patients with HER2-positive (HER2+) and triple-negative (TN) breast cancer. The need for surgery if percutaneous biopsy of the breast after neoadjuvant chemotherapy (NCT) indicates pCR in the breast (hereinafter referred to as breast pCR) has been questioned, and appropriate management of the axilla in such patients is unknown. Objective: To identify patients among exceptional responders to NCT with a low risk for axillary metastases when breast pCR is documented who may be eligible for an omission of surgery clinical trial design...
April 19, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/28421217/lighting-up-breast-cancer-cells-by-a-near-infrared-fluorescent-probe-based-on-kiaa1363-enzyme-targeting
#15
Jiangli Fan, Shigang Guo, Suzhen Wang, Yao Kang, Qichao Yao, Jia Wang, Xue Gao, Hongjiang Wang, Jianjun Du, Xiaojun Peng
The first NIR KIAA1363-targeting probe, NB-AX, specifically and instantly featured an "off-on" switch upon gradual addition of KIAA1363 over all kinds of other biomolecules, and its detection limit was initially calculated to be 0.58 μg mL(-1) (3δ/k). The probe was also able to be used in ultrafast distinguishing of breast cancer cells from normal cells in fluorescence imaging and applied in tissue imaging and tumor imaging in vivo.
April 19, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28421181/mct1-in-invasive-ductal-carcinoma-monocarboxylate-metabolism-and-aggressive-breast-cancer
#16
Jennifer M Johnson, Paolo Cotzia, Roberto Fratamico, Lekha Mikkilineni, Jason Chen, Daniele Colombo, Mehri Mollaee, Diana Whitaker-Menezes, Marina Domingo-Vidal, Zhao Lin, Tingting Zhan, Madalina Tuluc, Juan Palazzo, Ruth C Birbe, Ubaldo E Martinez-Outschoorn
Introduction: Monocarboxylate transporter 1 (MCT1) is an importer of monocarboxylates such as lactate and pyruvate and a marker of mitochondrial metabolism. MCT1 is highly expressed in a subgroup of cancer cells to allow for catabolite uptake from the tumor microenvironment to support mitochondrial metabolism. We studied the protein expression of MCT1 in a broad group of breast invasive ductal carcinoma specimens to determine its association with breast cancer subtypes and outcomes. Methods: MCT1 expression was evaluated by immunohistochemistry on tissue micro-arrays (TMA) obtained through our tumor bank...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28420325/usefulness-of-grayscale-inverted-images-in-addition-to-standard-images-in-digital-mammography
#17
Ayşegül Altunkeser, M Kazım Körez
BACKGROUND: Mammography is essential for early diagnosis of breast cancer, which is the most common type of cancer in females that is associated with a high mortality rate. We investigated whether evaluation of the grayscale inverted images of mammograms would aid in increasing the diagnostic sensitivity of the mammographic imaging technique. METHODS: Our study included 636 mammograms of 159 women who had undergone digital mammography. Standard, grayscale inverted, and standard plus grayscale inverted images were sequentially examined three times, at 15-day intervals, for the presence or assessment of pathological changes in the skin, calcification, asymmetric density, mass lesions, structural distortions, and intramammary and axillary lymph nodes...
April 18, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28419815/diagnostic-performance-of-and-breast-tissue-changes-at-early-breast-mr-imaging-surveillance-in-women-after-breast-conservation-therapy
#18
Eun Jeong Kim, Bong Joo Kang, Sung Hun Kim, In Kyung Youn, Ji Eun Baek, Hyun Sil Lee
Purpose To investigate the diagnostic performance and tissue changes in early (1 year or less) breast magnetic resonance (MR) imaging surveillance in women who underwent breast conservation therapy for breast cancer. Materials and Methods This prospective study was approved by the institutional review board, and written informed consent was obtained. Between April 2014 and June 2016, 414 women (mean age, 51.5 years; range, 21-81 years) who underwent 422 early surveillance breast MR imaging examinations (median, 6...
April 18, 2017: Radiology
https://www.readbyqxmd.com/read/28419079/predicting-breast-cancer-response-to-neoadjuvant-chemotherapy-using-pretreatment-diffuse-optical-spectroscopic-texture-analysis
#19
William T Tran, Mehrdad J Gangeh, Lakshmanan Sannachi, Lee Chin, Elyse Watkins, Silvio G Bruni, Rashin Fallah Rastegar, Belinda Curpen, Maureen Trudeau, Sonal Gandhi, Martin Yaffe, Elzbieta Slodkowska, Charmaine Childs, Ali Sadeghi-Naini, Gregory J Czarnota
BACKGROUND: Diffuse optical spectroscopy (DOS) has been demonstrated capable of monitoring response to neoadjuvant chemotherapy (NAC) in locally advanced breast cancer (LABC) patients. In this study, we evaluate texture features of pretreatment DOS functional maps for predicting LABC response to NAC. METHODS: Locally advanced breast cancer patients (n=37) underwent DOS breast imaging before starting NAC. Breast tissue parametric maps were constructed and texture analyses were performed based on grey-level co-occurrence matrices for feature extraction...
April 18, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28418819/cancer-genomics-and-important-oncologic-mutations-a-contemporary-guide-for-body-imagers
#20
REVIEW
Veronica L Cox, Priya Bhosale, Gauri R Varadhachary, Nicolaus Wagner-Bartak, Isabella C Glitza, Kathryn A Gold, Johnique T Atkins, Pamela T Soliman, David S Hong, Aliya Qayyum
The field of cancer genomics is rapidly evolving and has led to the development of new therapies. Knowledge of commonly involved cellular pathways and genetic mutations is now essential for radiologists reading oncology cases. Radiogenomics is an emerging area of research that seeks to correlate imaging features with cancer genotypes. Such knowledge may extend the utility of multiparametric imaging to yield information regarding cancer prognosis and likelihood of therapeutic response. To date, only a handful of radiogenomics studies have been performed to evaluate solid tumors of the body, and there is much to explore...
May 2017: Radiology
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