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Breast augmentation imaging

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https://www.readbyqxmd.com/read/29764880/digital-breast-tomosynthesis-plus-synthesised-images-versus-standard-full-field-digital-mammography-in-population-based-screening-tosyma-protocol-of-a-randomised-controlled-trial
#1
Stefanie Weigel, Joachim Gerss, Hans-Werner Hense, Miriam Krischke, Alexander Sommer, Jörg Czwoydzinski, Horst Lenzen, Laura Kerschke, Karin Spieker, Stefanie Dickmaenken, Sonja Baier, Marc Urban, Gerold Hecht, Oliver Heidinger, Joachim Kieschke, Walter Heindel
INTRODUCTION: Development of digital breast tomosynthesis (DBT) provides a technology that generates three-dimensional data sets, thus reducing the pitfalls of overlapping breast tissue. Observational studies suggest that the combination of two-dimensional (2D) digital mammography and DBT increases diagnostic accuracy. However, because of duplicate exposure, this comes at the cost of an augmented radiation dose. This undesired adverse impact can be avoided by using synthesised 2D images reconstructed from the DBT data (s2D)...
May 14, 2018: BMJ Open
https://www.readbyqxmd.com/read/29762436/preoperative-analysis-of-venous-anatomy-before-deep-inferior-epigastric-perforator-free-flap-breast-reconstruction-using-ferumoxytol-enhanced-magnetic-resonance-angiography
#2
John Dortch, Antonio J Forte, Candice Bolan, Pujan Kandel, Galen Perdikis
BACKGROUND: Venous congestion after deep inferior epigastric artery perforator (DIEP) flap breast reconstruction is a complication that may be partially attributable to variations in venous abdominal wall anatomy. In previous work, we have shown that ferumoxytol may be used as a bloodpool contrast agent to perform high-resolution venous imaging. Our current aim was to use this technology to perform a detailed analysis of the venous anatomy among patients undergoing DIEP flap breast reconstruction...
May 14, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29717790/use-of-diffusion-kurtosis-imaging-and-quantitative-dynamic-contrast-enhanced-mri-for-the-differentiation-of-breast-tumors
#3
Ting Li, Tao Yu, Lyu Li, Lunbo Lu, Yaoyao Zhuo, Jingge Lian, Yun Xiong, Dexing Kong, Kangan Li
BACKGROUND: Breast MRI is a sensitive imaging technique to assess breast cancer but its effectiveness still remains to be improved. PURPOSE: To evaluate the diagnostic performance of diffusion-weighted imaging (DWI), diffusion kurtosis imaging (DKI), and quantitative dynamic contrast-enhanced (DCE)-MRI in differentiating malignant from benign breast lesions independently or jointly and to explore whether correlations exist among these parameters. STUDY TYPE: Retrospective...
May 2, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29696472/axillary-lymph-node-evaluation-utilizing-convolutional-neural-networks-using-mri-dataset
#4
Richard Ha, Peter Chang, Jenika Karcich, Simukayi Mutasa, Reza Fardanesh, Ralph T Wynn, Michael Z Liu, Sachin Jambawalikar
The aim of this study is to evaluate the role of convolutional neural network (CNN) in predicting axillary lymph node metastasis, using a breast MRI dataset. An institutional review board (IRB)-approved retrospective review of our database from 1/2013 to 6/2016 identified 275 axillary lymph nodes for this study. Biopsy-proven 133 metastatic axillary lymph nodes and 142 negative control lymph nodes were identified based on benign biopsies (100) and from healthy MRI screening patients (42) with at least 3 years of negative follow-up...
April 25, 2018: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/29616660/evolutionary-pruning-of-transfer-learned-deep-convolutional-neural-network-for-breast-cancer-diagnosis-in-digital-breast-tomosynthesis
#5
Ravi K Samala, Heang-Ping Chan, Lubomir M Hadjiiski, Mark A Helvie, Caleb Richter, Kenny Cha
Deep learning models are highly parameterized, resulting in difficulty in inference and transfer learning for image recognition tasks. In this work, we propose a layered pathway evolution method to compress a deep convolutional neural network (DCNN) for classification of masses in digital breast tomosynthesis (DBT). The objective is to prune the number of tunable parameters while preserving the classification accuracy. In the first stage transfer learning, 19,632 augmented regions-of-interest (ROIs) from 2,454 mass lesions on mammograms were used to train a pre-trained DCNN on ImageNet...
April 4, 2018: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29595718/breast-cancer-following-augmentation-mammaplasty-a-case-control-study
#6
Michael Sosin, Chaitan Devulapalli, Charles Fehring, Edward R Hammond, Shawna C Willey, Eleni A Tousimis, Scott L Spear, Maurice Y Nahabedian, Elizabeth D Feldman
BACKGROUND: The purpose of this study was to determine whether augmentation mammaplasty, implant type, and implant location affect breast cancer detection, stage, and treatment. METHODS: An institutional case-control study was performed of patients with prior breast augmentation undergoing breast cancer treatment from 2000 to 2013. Controls were propensity matched and randomized, and data were retrospectively reviewed. RESULTS: Forty-eight cases and 302 controls were analyzed...
April 2018: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29471620/augmented-reality-for-breast-imaging
#7
Alberto Rancati, Claudio Angrigiani, Maurizio B Nava, Giuseppe Catanuto, Nicola Rocco, Fernando Ventrice, Julio Dorr
BACKGROUND: Augmented reality (AR) enables the superimposition of virtual reality reconstructions onto clinical images of a real patient, in real time. This allows visualization of internal structures through overlying tissues, thereby providing a virtual transparency vision of surgical anatomy. AR has been applied to neurosurgery, which utilizes a relatively fixed space, frames, and bony references; the application of AR facilitates the relationship between virtual and real data. Augmented Breast imaging (ABI) is described...
February 21, 2018: Minerva Chirurgica
https://www.readbyqxmd.com/read/29430479/toward-quantitative-quasistatic-elastography-with-a-gravity-induced-deformation-source-for-image-guided-breast-surgery
#8
Rebekah H Griesenauer, Jared A Weis, Lori R Arlinghaus, Ingrid M Meszoely, Michael I Miga
Biomechanical breast models have been employed for applications in image registration and diagnostic analysis, breast augmentation simulation, and for surgical and biopsy guidance. Accurate applications of stress-strain relationships of tissue within the breast can improve the accuracy of biomechanical models that attempt to simulate breast deformations. Reported stiffness values for adipose, glandular, and cancerous tissue types vary greatly. Variations in reported stiffness properties have been attributed to differences in testing methodologies and assumptions, measurement errors, and natural interpatient differences in tissue elasticity...
January 2018: Journal of Medical Imaging
https://www.readbyqxmd.com/read/29403169/role-of-nuclear-morphometry-in-breast-cancer-and-its-correlation-with-cytomorphological-grading-of-breast-cancer-a-study-of-64-cases
#9
Anamika Kashyap, Manjula Jain, Shailaja Shukla, Manoj Andley
Background: Fine needle aspiration cytology (FNAC) is a simple, rapid, inexpensive, and reliable method of diagnosis of breast mass. Cytoprognostic grading in breast cancers is important to identify high-grade tumors. Computer-assisted image morphometric analysis has been developed to quantitate as well as standardize various grading systems. Aims: To apply nuclear morphometry on cytological aspirates of breast cancer and evaluate its correlation with cytomorphological grading with derivation of suitable cutoff values between various grades...
January 2018: Journal of Cytology
https://www.readbyqxmd.com/read/29362942/is-salvage-of-recently-infected-breast-implant-after-breast-augmentation-or-reconstruction-possible-an-experimental-study
#10
P Castus, O Heymans, P Melin, L Renwart, C Henrist, E Hayton, S Mordon, F M Leclère
INTRODUCTION: The reinsertion of an infected implant when peri-prosthetic infection occurs early after breast augmentation or breast reconstruction remains controversial. In this experimental study, the authors tried to remove bacteria, and their biofilm, from the colonized surface of breast prostheses, without damaging their integrity. MATERIALS AND METHODS: A total of 112 shell samples of silicone breast prostheses, smooth (SPSS) and textured (TPSS), were colonized by S...
April 2018: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/29322121/silicone-granuloma-associated-with-pectoral-muscle-involvement-after-ruptured-breast-implant-a-novel-case-report
#11
Türkan İkizceli, Gökçe Gülşen, İlker Akın
In this study, an unusual case of a patient who was previously operated on a ruptured breast implant following silicone granuloma associated with pectoral muscle involvement is reported. A 72-year-old woman had undergone breast augmentation surgery when she was 52-year-old and silicone implant rupture 10 years later. After 10 years of ruptured silicone implant, her mammography showed diffuse, multiple high-density nodules in the left breast. The pectoral muscle was significantly hypertrophic. The magnetic resonance imaging showed that the pectoral muscle was quite hypertrophic and had heterogeneous enhancement...
January 2018: European Journal of Breast Health
https://www.readbyqxmd.com/read/29302731/quantifying-dynamic-deformity-after-dual-plane-breast-augmentation
#12
Marcelo Recondo Cheffe, Jorge Diego Valentini, Marcus Vinicius Martins Collares, Pedro Salomão Piccinini, Jefferson Luis Braga da Silva
BACKGROUND: Dynamic breast deformity (DBD) is characterized by visible distortion and deformity of the breast due to contraction of the pectoralis major muscle after submuscular breast augmentation; fortunately, in most cases, this is not a clinically significant complaint from patients. The purpose of this study is to present a simple method for objectively measuring DBD in patients submitted to dual plane breast augmentation (DPBA). METHODS: We studied 32 women, between 18 and 50 years old, who underwent primary DPBA with at least 1 year of follow-up...
January 4, 2018: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/29131778/adventures-and-misadventures-in-plastic-surgery-and-soft-tissue-implants
#13
Dana J Lin, Tony T Wong, Gina A Ciavarra, Jonathan K Kazam
Soft-tissue augmentation and implants are increasingly seen by the radiologist as more techniques emerge for a variety of indications and locations. Some surgical and implant procedures are performed for purely cosmetic reasons in otherwise healthy patients seeking to improve their body image, and some are performed for reconstruction after cancer or other chronic illnesses. Abdominoplasty, liposuction, and autologous fat grafting can be performed for abdominal and gluteal contouring. Injection of liquid injectable silicone has historically been fraught with legal issues, although it continues to be used for augmentation in a variety of anatomic locations...
November 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29101436/anaplastic-large-cell-lymphoma-associated-with-breast-implants-a-case-report-of-a-transgender-female
#14
Matej Patzelt, Lucie Zarubova, Pavel Klener, Josef Barta, Kamila Benkova, Adrianna Brandejsova, Marek Trneny, Robert Gürlich, Andrej Sukop
Breast implant-associated anaplastic large-cell lymphoma (BIA-ALCL) is a rare peripheral T cell lymphoma. BIA-ALCL is a disease of the fibrous capsule surrounding the implant and occurs in patients after both breast reconstruction and augmentation. More than 300 cases have been reported so far, including two in a transgender patient. Here we describe BIA-ALCL presented with a mass in a transgender patient and the first case of BIA-ALCL in the Czech Republic. In 2007, a 33-year-old transgender male to female underwent bilateral breast augmentation as a part of his transformation to female...
April 2018: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/29083930/convolutional-neural-network-for-histopathological-analysis-of-osteosarcoma
#15
Rashika Mishra, Ovidiu Daescu, Patrick Leavey, Dinesh Rakheja, Anita Sengupta
Pathologists often deal with high complexity and sometimes disagreement over osteosarcoma tumor classification due to cellular heterogeneity in the dataset. Segmentation and classification of histology tissue in H&E stained tumor image datasets is a challenging task because of intra-class variations, inter-class similarity, crowded context, and noisy data. In recent years, deep learning approaches have led to encouraging results in breast cancer and prostate cancer analysis. In this article, we propose convolutional neural network (CNN) as a tool to improve efficiency and accuracy of osteosarcoma tumor classification into tumor classes (viable tumor, necrosis) versus nontumor...
October 30, 2017: Journal of Computational Biology: a Journal of Computational Molecular Cell Biology
https://www.readbyqxmd.com/read/29075819/augmentation-mastopexy-with-a-dermal-encapsulated-round-or-anatomic-autoprosthesis
#16
Safvet Ors
INTRODUCTION: Several factors, such as aging, pregnancy, and weight loss, reduce the elasticity of the breast tissue, and ptosis occurs. Due to aging and gravity, it is not possible to completely prevent breast ptosis. The goal is to delay the recurrence of ptosis as much as possible. PATIENTS AND METHODS: This study included 20 female patients aged 25-55 years. The patients who underwent surgery had different levels of ptosis. Although the patients wanted their breasts to be lifted and an increase in projection, they did not want implants to be used...
February 2018: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28993511/cell-cycle-dependent-tumor-engraftment-and-migration-are-enabled-by-aurora-a
#17
Tony L H Chu, Marisa Connell, Lixin Zhou, Zhengcheng He, Jennifer Won, Helen Chen, Seyed M R Rahavi, Pooja Mohan, Oksana Nemirovsky, Abbas Fotovati, Miguel Angel Pujana, Gregor S D Reid, Torsten O Nielsen, Nelly Pante, Christopher A Maxwell
Cell-cycle progression and the acquisition of a migratory phenotype are hallmarks of human carcinoma cells that are perceived as independent processes but may be interconnected by molecular pathways that control microtubule nucleation at centrosomes. Here, cell-cycle progression dramatically impacts the engraftment kinetics of 4T1-luciferase2 breast cancer cells in immunocompetent BALB/c or immunocompromised NOD-SCID gamma (NSG) mice. Multiparameter imaging of wound closure assays was used to track cell-cycle progression, cell migration, and associated phenotypes in epithelial cells or carcinoma cells expressing a fluorescence ubiquitin cell-cycle indicator...
January 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28966458/breast-implant-associated-anaplastic-large-cell-lymphoma
#18
Lindsay Keith, William Herlihy, Houston Holmes, Paul Pin
Anaplastic large cell lymphoma is a rare disease associated with breast implants. We present the case of a woman who had had breast augmentation and multiple revisions over a period of 13 years and presented with recurrent fluid collections. The cause was determined to be anaplastic large cell lymphoma, which required removal of the implants, capsulectomy, and evaluation by a medical oncologist. The patient was not found to have metastatic disease on imaging studies. Breast implant-associated anaplastic large cell lymphoma is a poorly understood disease entity, and optimal treatment is unclear...
October 2017: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/28929806/clustered-microcysts-on-breast-ultrasound-what-is-an-appropriate-management-recommendation
#19
Heather I Greenwood, Amie Y Lee, Iryna V Lobach, Bianca M Carpentier, Rita I Freimanis, Loretta M Strachowski
OBJECTIVE: The objective of our study was to determine outcomes of lesions identified as clustered microcysts on breast ultrasound to augment the existing literature and help guide appropriate management recommendations. MATERIALS AND METHODS: We retrospectively identified cases at our institution, from January 2003 through December 2013, of all lesions classified as clustered microcysts at breast ultrasound. Breast ultrasound examinations were performed by the interpreting physician...
December 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28918365/review-of-breast-augmentation-and-reconstruction-for-the-radiologist-with-emphasis-on-mri
#20
REVIEW
Lauren A Green, Jillian A Karow, Jordan E Toman, Antonella Lostumbo, Karen Xie
It is imperative to continue screening for breast cancer and/or detect tumor recurrence in patients after they have undergone breast augmentation or reconstruction. As there is an increasing role for both screening and diagnostic imaging of the post-operative breast, it is important for the radiologist to be familiar with the commonly performed surgical techniques in breast augmentation and reconstruction. Imaging of the augmented and reconstructed breast, as well as complications, will be reviewed with a focus on Magnetic Resonance Imaging (MRI)...
January 2018: Clinical Imaging
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