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https://www.readbyqxmd.com/read/29016551/pectoral-fascial-pecs-i-and-ii-blocks-as-rescue-analgesia-in-a-patient-undergoing-minimally-invasive-cardiac-surgery
#1
Suraj Yalamuri, Rebecca Y Klinger, W Michael Bullock, Donald D Glower, Brandi A Bottiger, Jeffrey C Gadsden
INTRODUCTION: Patients undergoing minimally invasive cardiac surgery have the potential for significant pain from the thoracotomy site. We report the successful use of pectoral nerve block types I and II (Pecs I and II) as rescue analgesia in a patient undergoing minimally invasive mitral valve repair. CASE REPORT: In this case, a 78-year-old man, with no history of chronic pain, underwent mitral valve repair via right anterior thoracotomy for severe mitral regurgitation...
October 6, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28991557/screening-for-breast-cancer
#2
REVIEW
Bethany L Niell, Phoebe E Freer, Robert Jared Weinfurtner, Elizabeth Kagan Arleo, Jennifer S Drukteinis
The goal of screening is to detect breast cancers when still curable to decrease breast cancer-specific mortality. Breast cancer screening in the United States is routinely performed with mammography, supplemental digital breast tomosynthesis, ultrasound, and/or MR imaging. This article aims to review the most commonly used breast imaging modalities for screening, discuss how often and when to begin screening with specific imaging modalities, and examine the pros and cons of screening. By the article's end, the reader will be better equipped to have informed discussions with patients and medical professionals regarding the benefits and disadvantages of breast cancer screening...
November 2017: Radiologic Clinics of North America
https://www.readbyqxmd.com/read/28987687/incidental-liver-lesions-seen-on-breast-mri-when-is-additional-imaging-warranted
#3
Mark Knox, Priscilla Slanetz, Jordana Phillips, Valerie Fein Zachary, Shambhavi Venkataraman, Vandana Dialani, Tejas Mehta
PURPOSE: Incidental hepatic lesions identified on breast MR can be a diagnostic dilemma due to concern for liver metastases or other significant hepatic lesions. The purpose of this study was to identify the incidence and nature of liver lesions seen on breast MR, and determine if additional imaging is necessary. METHODS AND MATERIALS: Imaging reports of all breast MR examinations performed at our institution from January 1, 2010 to December 31, 2011 were reviewed to identify reports with hepatic abnormalities...
October 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28987664/abbreviated-breast-magnetic-resonance-protocol-value-of-high-resolution-temporal-dynamic-sequence-to-improve-lesion-characterization
#4
Guillaume Oldrini, Benjamin Fedida, Julie Poujol, Jacques Felblinger, Isabelle Trop, Philippe Henrot, Emile Darai, Isabelle Thomassin-Naggara
PURPOSE: To evaluate the added value of ULTRAFAST-MR sequence to an abbreviated FAST protocol in comparison with FULL protocol to distinguish benign from malignant lesions in a population of women, regardless of breast MR imaging indication. MATERIALS AND METHODS: From March 10th to September 22th, 2014, we retrospectively included a total of 70 consecutive patients with 106 histologically proven lesions (58 malignant and 48 benign) who underwent breast MR imaging for preoperative breast staging (n=38), high-risk screening (n=7), problem solving (n=18), and nipple discharge (n=4) with 12 time resolved imaging of contrast kinetics (TRICKS) acquisitions during contrast inflow interleaved in a regular high-resolution dynamic MRI protocol (FULL protocol)...
October 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28980886/features-from-computerized-texture-analysis-of-breast-cancers-at-pretreatment-mr-imaging-are-associated-with-response-to-neoadjuvant-chemotherapy
#5
Foucauld Chamming's, Yoshiko Ueno, Romuald Ferré, Ellen Kao, Anne-Sophie Jannot, Jaron Chong, Atilla Omeroglu, Benoît Mesurolle, Caroline Reinhold, Benoit Gallix
Purpose To evaluate whether features from texture analysis of breast cancers were associated with pathologic complete response (pCR) after neoadjuvant chemotherapy and to explore the association between texture features and tumor subtypes at pretreatment magnetic resonance (MR) imaging. Materials and Methods Institutional review board approval was obtained. This retrospective study included 85 patients with 85 breast cancers who underwent breast MR imaging before neoadjuvant chemotherapy between April 10, 2008, and March 12, 2015...
October 4, 2017: Radiology
https://www.readbyqxmd.com/read/28977682/mri-to-predict-nipple-areola-complex-nac-involvement-an-automatic-method-to-compute-the-3d-distance-between-the-nac-and-tumor
#6
Valentina Giannini, Veronica Bianchi, Silvia Carabalona, Simone Mazzetti, Furio Maggiorotto, Franziska Kubatzki, Daniele Regge, Riccardo Ponzone, Laura Martincich
OBJECTIVES: To assess the role in predicting nipple-areola complex (NAC) involvement of a newly developed automatic method which computes the 3D tumor-NAC distance. PATIENTS AND METHODS: Ninety-nine patients scheduled to nipple sparing mastectomy (NSM) underwent magnetic resonance (MR) examination at 1.5 T, including sagittal T2w and dynamic contrast enhanced (DCE)-MR imaging. An automatic method was developed to segment the NAC and the tumor and to compute the 3D distance between them...
October 4, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28975977/mgp-is-downregulated-due-to-promoter-methylation-in-chemoresistant-er-breast-cancer-and-high-mgp-expression-predicts-better-survival-outcomes
#7
Y-L Tuo, Y-F Ye
OBJECTIVE: In this study, we aimed to investigate the underlying mechanisms of MGP downregulation in chemoresistant ER+ breast cancer cells and its association with survival outcomes in breast cancer patients. MATERIALS AND METHODS: Microarray data of dysregulated genes in chemoresistant ER+ breast cancer cells were searched in GEO datasets. MGP expression in breast cancer patients and its DNA methylation status were analyzed in TCGA database. MGP promoter methylation was assessed using Methylation-Specific PCR (MSP) assay...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28969000/magnetic-resonance-metabolic-profiling-of-estrogen-receptor-positive-breast-cancer-correlation-with-currently-used-molecular-markers
#8
Ji Soo Choi, Dahye Yoon, Ja Seung Koo, Siwon Kim, Vivian Youngjean Park, Eun-Kyung Kim, Suhkmann Kim, Min Jung Kim
Estrogen receptor (ER)-positive breast cancers overall have a good prognosis, however, some patients suffer relapses and do not respond to endocrine therapy. The purpose of this study was to determine whether there are any correlations between high-resolution magic angle spinning (HR-MAS) magnetic resonance spectroscopy (MRS) metabolic profiles of core needle biopsy (CNB) specimens and the molecular markers currently used in patients with ER-positive breast cancers. The metabolic profiling of CNB samples from 62 ER-positive cancers was performed by HR-MAS MRS...
September 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28961567/abbreviated-mri-and-accelerated-mri-for-screening-and-diagnosis-of-breast-cancer
#9
Deepa Sheth, Hiroyuki Abe
Although published studies have revealed that magnetic resonance imaging (MRI) is by far the most effective imaging modality for cancer detection, it is currently considered cost-ineffective for screening women at an intermediate risk for breast cancer. The concept of an "abbreviated MRI" protocol has recently emerged as a possible solution for reducing the cost of MRI. The abbreviated MRI is a shortened version of the standard MRI, consisting of a single early phase dynamic contrast enhanced (DCE) series. Several clinical studies have shown that this MRI protocol would not affect sensitivity or specificity for breast MRI screening purposes...
October 2017: Topics in Magnetic Resonance Imaging: TMRI
https://www.readbyqxmd.com/read/28952003/uterine-fibroids-correlations-between-mri-appearance-and-stiffness-via-magnetic-resonance-elastography
#10
Danielle E Jondal, Jin Wang, Jun Chen, Krzysztof R Gorny, Joel Felmlee, Gina Hesly, Shannon Laughlin-Tommaso, Elizabeth A Stewart, Richard Ehman, David A Woodrum
RATIONALE AND OBJECTIVES: Magnetic resonance elastography has proven to be a valuable tool in the diagnosis of liver fibrosis, breast and cervical cancer, but its application in uterine fibroids requires further characterization. The aim of the present study was to examine the relationship between uterine fibroid stiffness by MRE and MR imaging characteristics. MATERIALS AND METHODS: An IRB-approved, HIPAA compliant review was performed of prospectively collected pelvic MRI and 2D-MRE data in patients with symptomatic uterine fibroids (N = 102)...
September 26, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28944056/magnetic-resonance-guided-high-intensity-focused-ultrasound-in-the-presence-of-biopsy-markers
#11
Charles Mougenot, Chrit Moonen
BACKGROUND: Magnetic Resonance guided High Intensity Focused ultrasound (MR-HIFU) offers precise non-invasive thermotherapy for clinical applications such as the treatment of breast lesions. However, patients with a biopsy marker are usually not eligible for MR-HIFU treatment. This study investigates the interaction of some MR-compatible markers with MR-HIFU thermotherapy. METHODS: The MR-HIFU compatibility of 14 markers (6 Gold Anchor and 4 Visicoil markers in gold, 1 Visicoil marker in brass, 3 BiomarC markers in carbon coated) were tested using the Sonalleve breast MR-HIFU platform at 1...
2017: Journal of Therapeutic Ultrasound
https://www.readbyqxmd.com/read/28943165/characterization-of-invisible-breast-cancers-in-digital-mammography-and-tomosynthesis-radio-pathological-correlation
#12
P M Aguilar Angulo, C Romero Castellano, J Ruiz Martín, M P Sánchez-Camacho González-Carrato, L M Cruz Hernández
OBJECTIVE: To review the radio-pathologic features of symptomatic breast cancers not detected at digital mammography (DM) and digital breast tomosynthesis (DBT). MATERIAL AND METHODS: Retrospective analysis of 169 lesions from symptomatic patients with breast cancer that were studied with DM, DBT, ultrasound (US) and magnetic resonance (MR). We identified occult lesions (true false negatives) in DM and DBT. Clinical data, density, US and MR findings were analyzed as well as histopathological results...
September 21, 2017: Radiología
https://www.readbyqxmd.com/read/28939952/2d-and-3d-texture-analysis-to-differentiate-brain-metastases-on-mr-images-proceed-with-caution
#13
Monika Béresová, Andrés Larroza, Estanislao Arana, József Varga, László Balkay, David Moratal
OBJECTIVE: To find structural differences between brain metastases of lung and breast cancer, computing their heterogeneity parameters by means of both 2D and 3D texture analysis (TA). MATERIALS AND METHODS: Patients with 58 brain metastases from breast (26) and lung cancer (32) were examined by MR imaging. Brain lesions were manually delineated by 2D ROIs on the slices of contrast-enhanced T1-weighted (CET1) images, and local binary patterns (LBP) maps were created from each region...
September 22, 2017: Magma
https://www.readbyqxmd.com/read/28938164/multifunctional-superparamagnetic-nanoparticles-conjugated-with-fluorescein-labeled-designed-ankyrin-repeat-protein-as-an-efficient-her2-targeted-probe-in-breast-cancer
#14
Dong-Li Li, Jian-Er Tan, Ying Tian, Shun Huang, Peng-Hui Sun, Meng Wang, Yan-Jiang Han, Hong-Sheng Li, Hu-Bing Wu, Xing-Mei Zhang, Yi-Kai Xu, Quan-Shi Wang
Based on the discordance of human epidermal growth factor receptor-2 (HER2) expression between primary and metastatic/recurrent breast cancer, HER2 molecular imaging, which had potential to systemically assess and dynamically monitor HER2 expression, might improve the selection of patients for anti-HER2 therapy. In this study, designed ankyrin repeat protein (DARPin) G3, a novel binding protein with picomolar affinity for HER2, was used and multifunctional superparamagnetic nanoparticles modified with fluorescein-5-maleimide-labeled DARPin G3 (SPIO-G3-5MF) were developed for HER2 imaging...
September 8, 2017: Biomaterials
https://www.readbyqxmd.com/read/28932236/quantitative-evaluation-of-temporal-regularizers-in-compressed-sensing-dynamic-contrast-enhanced-mri-of-the-breast
#15
Dong Wang, Lori R Arlinghaus, Thomas E Yankeelov, Xiaoping Yang, David S Smith
PURPOSE: Dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) is used in cancer imaging to probe tumor vascular properties. Compressed sensing (CS) theory makes it possible to recover MR images from randomly undersampled k-space data using nonlinear recovery schemes. The purpose of this paper is to quantitatively evaluate common temporal sparsity-promoting regularizers for CS DCE-MRI of the breast. METHODS: We considered five ubiquitous temporal regularizers on 4...
2017: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/28932122/gadobutrol-in-india-a-comprehensive-review-of-safety-and-efficacy
#16
REVIEW
Jan Endrikat, Nicoletta Anzalone
Gadobutrol is a gadolinium (Gd)-based contrast agent for magnetic resonance imaging (MRI). In India, gadobutrol is approved for MRI of the central nervous system (CNS), liver, kidneys, breast and for MR angiography for patients 2 years and older. The standard dose for all age groups is 0.1 mmol/kg body weight. The safety profile has been demonstrated in 42 clinical phase 2 to 4 studies (>6800 patients), 7 observational studies, and by assessing pharmacovigilance data of 29 million applications. Furthermore, studies in children, adults, and elderly and in patients with impaired liver or kidney function did not show any increased adverse event rate...
2017: Magnetic Resonance Insights
https://www.readbyqxmd.com/read/28929243/discrimination-between-benign-and-malignant-breast-lesions-using-volumetric-quantitative-dynamic-contrast-enhanced-mr-imaging
#17
Ziliang Cheng, Zhuo Wu, Guangzi Shi, Zhilong Yi, Mingwei Xie, Weike Zeng, Chao Song, Chushan Zheng, Jun Shen
OBJECTIVE: To determine the diagnostic performance of volumetric quantitative dynamic contrast-enhanced MRI (qDCE-MRI) in differentiation between malignant and benign breast lesions. METHODS: DCE-MRI was performed in 124 patients with 136 breast lesions. Quantitative pharmacokinetic parameters K(trans), Kep, Ve, Vp and semi-quantitative parameters TTP, MaxCon, MaxSlope, AUC were obtained by using a two-compartment extended Tofts model and three-dimensional volume of interest...
September 19, 2017: European Radiology
https://www.readbyqxmd.com/read/28921580/integrating-prior-information-into-microwave-tomography-part-1-impact-of-detail-on-image-quality
#18
Douglas Kurrant, Anastasia Baran, Joe LoVetri, Elise Fear
PURPOSE: The authors investigate the impact that incremental increases in the level of detail of patient-specific prior information have on image quality and the convergence behavior of an inversion algorithm in the context of near-field microwave breast imaging. A methodology is presented that uses image quality measures to characterize the ability of the algorithm to reconstruct both internal structures and lesions embedded in fibroglandular tissue. The approach permits key aspects that impact the quality of reconstruction of these structures to be identified and quantified...
September 17, 2017: Medical Physics
https://www.readbyqxmd.com/read/28916952/air-electron-stream-interactions-during-magnetic-resonance-igrt-skin-irradiation-outside-the-treatment-field-during-accelerated-partial-breast-irradiation
#19
Jong Min Park, Kyung Hwan Shin, Jung-In Kim, So-Yeon Park, Seung Hyuck Jeon, Noorie Choi, Jin Ho Kim, Hong-Gyun Wu
PURPOSE: To investigate and to prevent irradiation outside the treatment field caused by an electron stream in the air generated by the magnetic field during magnetic resonance image-guided accelerated partial breast irradiation (APBI). MATERIALS AND METHODS: In all, 20 patients who received APBI with a magnetic resonance image-guided radiation therapy (MR-IGRT) system were prospectively studied. The prescription dose was 38.5 Gy in 10 fractions of 3.85 Gy and delivered with a tri-cobalt system (the ViewRay system)...
September 15, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28914599/ductal-carcinoma-in-situ-quantitative-preoperative-breast-mr-imaging-features-associated-with-recurrence-after-treatment
#20
Jing Luo, Brian S Johnston, Averi E Kitsch, Daniel S Hippe, Larissa A Korde, Sara Javid, Janie M Lee, Sue Peacock, Constance D Lehman, Savannah C Partridge, Habib Rahbar
Purpose To investigate whether specific imaging features on breast magnetic resonance (MR) images are associated with ductal carcinoma in situ (DCIS) recurrence risk after definitive treatment. Materials and Methods Patients with DCIS who underwent preoperative dynamic contrast material-enhanced (DCE) MR imaging between 2004 and 2014 with ipsilateral recurrence more than 6 months after definitive surgical treatment were retrospectively identified. For each patient, a control subject with DCIS that did not recur was identified and matched on the basis of clinical, histopathologic, and treatment features known to affect recurrence risk...
September 14, 2017: Radiology
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