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https://www.readbyqxmd.com/read/28438322/water-fat-dixon-sequences-in-the-evaluation-of-breast-implants-proposal-of-a-time-effective-rapid-approach-in-the-clinical-practice
#1
M Marcon, A S Becker, E J Ulbrich, T Frauenfelder, A Boss
AIM: To evaluate the diagnostic accuracy achieved from a fat-water Dixon sequence alone compared to a combination of a silicone-specific magnetic resonance imaging (MRI) sequence and a water-specific MRI sequence in the assessment of breast implants. MATERIALS AND METHODS: In this institutional review board (IRB)-approved study the integrity of breast implants was assessed retrospectively in 27 patients undergoing breast MRI at 3 T. A qualitative evaluation of (set 1) a silicon-selective water-saturated short tau inversion recovery (STIR) sequence in combination with a water-only Dixon dataset (total acquisition time 7 minutes 17 seconds), and of (set 2) fat-only and water-only Dixon datasets (4 minutes 8 seconds) was performed by two readers independently evaluating the following features: margin definition of the implant, water suppression homogeneity, image quality, presence of artefacts and their effects on the imaging interpretation, and diagnostic confidence...
April 21, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28437235/breast-augmentation-and-reconstruction-from-a-regenerative-medicine-point-of-view-state-of-the-art-and-future-perspectives
#2
Luke Evan Visscher, Matthew Cheng, Mohit Chhaya, Madeline Louise Hintz, Jan-Thorsten Schantz, Phong Tran, Owen Ung, Clement Wong, Dietmar Werner Hutmacher
Breast reconstruction and augmentation are very common procedures, yet the prevailing current methods utilize silicone implants that may have significant local complications requiring reoperation. Lipofillling is increasingly used to contour and is considered safe, however its utility is limited by significant volume loss. A new approach could offer an alternative and increase the scope of patient choice. A small number of teams around the world are investigating a breast tissue-engineering paradigm. Conventional breast tissue engineering concepts are based on seeding a scaffold with the patients' own stem cells...
February 24, 2017: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/28383881/a-versatile-carbonic-anhydrase-ix-targeting-ligand-functionalized-porous-silicon-nanoplatform-for-dual-hypoxia-cancer-therapy-and-imaging
#3
Agne Janoniene, Zehua Liu, Lina Baranauskiene, Ermei Mäkilä, Ming Ma, Jarno Salonen, Jouni Hirvonen, Hongbo Zhang, Vilma Petrikaite, Hélder A Santos
Hypoxia occurs in most solid tumors, and it has been shown to be an independent prognostic indicator of a poor clinical outcome for patients with various cancers. Therefore, constructing a nanosystem specifically targeting cancer cells under hypoxia conditions is a promising approach for cancer therapy. Herein, we develop a porous silicon (PSi)-based nanosystem for targeted cancer therapy. VD11-4-2, a novel inhibitor for carbonic anhydrase IX (CA IX), is anchored on PSi particles (VD-PSi). As CA IX is mainly expressed on the cancer cell membrane under hypoxia condition, this nanocomplex inherits a strong affinity toward hypoxic human breast adenocarcinoma (MCF-7) cells; thus, a better killing efficiency for the hypoxia-induced drug resistance cancer cell is observed...
April 11, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28379860/silicone-breast-implants-and-autoimmune-rheumatic-diseases-myth-or-reality
#4
Jan Willem Cohen Tervaert, Maartje J Colaris, René R van der Hulst
PURPOSE OF REVIEW: In the present review, recent findings regarding silicone breast implants (SBIs) complicated by rheumatic autoimmune diseases are described. RECENT FINDINGS: Despite changes in the principal constituents of the silicone implants during the past 50 years, silicone remained an adjuvant that may 'bleed' and subsequently may be a chronic stimulus to the immune system resulting in similar clinical manifestations as 50 years ago. Silicones are spread throughout the body and can be detected in tissues and the central nervous system...
April 4, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/28376261/theoretical-investigation-of-the-noise-performance-of-active-pixel-imaging-arrays-based-on-polycrystalline-silicon-thin-film-transistors
#5
Martin Koniczek, Larry E Antonuk, Youcef El-Mohri, Albert K Liang, Qihua Zhao
PURPOSE: Active matrix flat-panel imagers, which typically incorporate a pixelated array with one a-Si:H thin-film transistor (TFT) per pixel, have become ubiquitous by virtue of many advantages, including large monolithic construction, radiation tolerance and high DQE. However, at low exposures such as those encountered in fluoroscopy, digital breast tomosynthesis and breast computed tomography, DQE is degraded due to the modest average signal generated per interacting x-ray relative to electronic additive noise levels of ~1000 e, or greater...
April 4, 2017: Medical Physics
https://www.readbyqxmd.com/read/28362737/depth-encoded-optical-coherence-elastography-for-simultaneous-volumetric-imaging-of-two-tissue-faces
#6
Qi Fang, Luke Frewer, Philip Wijesinghe, Wes M Allen, Lixin Chin, Juliana Hamzah, David D Sampson, Andrea Curatolo, Brendan F Kennedy
Depth-encoded optical coherence elastography (OCE) enables simultaneous acquisition of two three-dimensional (3D) elastograms from opposite sides of a sample. By the choice of suitable path-length differences in each of two interferometers, the detected carrier frequencies are separated, allowing depth-ranging from each interferometer to be performed simultaneously using a single spectrometer. We demonstrate depth-encoded OCE on a silicone phantom and a freshly excised sample of mouse liver. This technique minimizes the required spectral detection hardware and halves the total scan time...
April 1, 2017: Optics Letters
https://www.readbyqxmd.com/read/28347699/effect-of-adipose-derived-stem-cells-on-acellular-dermal-matrix-engraftment-in-a-rabbit-model-of-breast-reconstruction
#7
Ung Sik Jin, Ki Yong Hong, Young-Il Hwang
Acellular dermal matrix (ADM) is frequently used in implant-based breast reconstruction. Although there are several advantages, ADM implantation also increases the risk of certain complications. Recently, ADM seeded with adipose-derived stem cells (ADSCs) were shown to induce angiogenesis and improve wound healing. This study aimed to investigate the effects of ADSCs on ADM engraftment in a rabbit model of implant-based breast reconstruction. Silicone implants were inserted to submuscular pocket of 16 female New Zealand rabbits using ADM with or without seeding of fluorescent PKH26-labelled rabbit ADSCs...
February 28, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28342376/label-free-silicon-nanodots-featured-ratiometric-fluorescent-aptasensor-for-lysosomal-imaging-and-ph-measurement
#8
Yanan Zhang, Shan Guo, Shibo Cheng, Xinghu Ji, Zhike He
The homeostasis of lysosomal pH is crucial in cell physiology. Developing small fluorescent nanosensors for lysosome imaging and ratiometric measurement of pH is highly demanded yet challenging. Herein, a pH-sensitive fluorescein tagged aptamer AS1411 has been utilized to covalently modify the label-free fluorescent silicon nanodots via a crosslinker for construction of a ratiometric pH biosensor. The established aptasensor exhibits the advantages of ultrasmall size, hypotoxicity, excellent pH reversibility and good photostability, which favors its application in an intracellular environment...
March 22, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28333220/implementation-of-an-integrated-biodimensional-method-of-breast-augmentation-with-anatomic-highly-cohesive-silicone-gel-implants-short-term-results-with-the-first-620-consecutive-cases
#9
Paolo Montemurro, Mouchammed Agko, Alessandro Quattrini Li, Stefano Avvedimento, Per Hedén
Background: The previously described Akademikliniken (AK) method is a comprehensive approach to breast augmentation with form stable implants that has been shown to afford favorable outcomes when applied by experienced surgeons. Objectives: To evaluate outcomes of a surgeon newly adopting this method at the beginning of his career. Methods: A retrospective review of patients undergoing dual plane subpectoral augmentation with Style 410 implants between April 2009 and December 2014 was undertaken...
February 20, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28331364/silicone-induced-granuloma-of-breast-implant-capsule-sigbic-similarities-and-differences-with-anaplastic-large-cell-lymphoma-alcl-and-their-differential-diagnosis
#10
REVIEW
Eduardo de Faria Castro Fleury, Milena Morais Rêgo, Luciana Costa Ramalho, Veronica Jorge Ayres, Rodrigo Oliveira Seleti, Carlos Alberto Pecci Ferreira, Decio Roveda
Primary breast lymphoma is a rare disease and accounts for 0.5% of cases of breast cancer. Most primary breast lymphomas develop from B cells, and the involvement of T cells is rare. Anaplastic large cell lymphoma (ALCL) is a recently discovered T-cell lymphoma associated with breast implants. Only a few cases have been reported to date. It is believed that the incidence of ALCL is increasing because of the increasing number of breast implants. The clinical presentation is variable and can manifest as a palpable mass in the breast or armpit, breast pain, or capsular contracture...
2017: Breast Cancer: Targets and Therapy
https://www.readbyqxmd.com/read/28329506/n%C3%A3-dulos-subcut%C3%A3-neos-faciales-de-3-meses-de-evoluci%C3%A3-n
#11
Antonio Martinez-Lopez, Israel Pérez-Lopez, Daniel Sánchez-Cano, Ricardo Ruiz-Villaverde
Siliconomas are subcutaneous nodules that usuallyappear as a consequence of the migration of freesilicon implanted in other locations. They are morefrequent in women with abnormal breast implants,such as poly implant prostheses (PIP), but they may alsoappear after illegal injection of free silicone. We reporta 57-year-old woman who attended our Dermatologyclinic complaining of relapsing facial panniculitis ofunknown origin. After a thorough work-up, thesenodules were determined to be the consequence ofdermal filler made with fluid silicone, which had beeninjected 20 years prior...
February 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28303876/-ultrasonic-examination-of-the-breast-adipose-grafts-after-mammoplasty
#12
E P Fisenko, O I Startseva, D V Mel'nikov, A S Zakharenko, K A Kirillova, A G Ivanova, E D Pishchikova
AIM: To present the results of PRP-adipose grafts implanatation. MATERIAL AND METHODS: The study included 25 patients after transplantation of autologous adipose tissue. Autotransplantation was performed to correct volume defects of breast and to restore lost volume after polyacrylamide gel removal in 4 patients; after mastectomy in 6 cases; after complicated replacement using silicone endoprostheses in 11 patients; after previous reduction in 2 cases; after augmentation mammoplasty in 2 cases...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28303359/vitamin-d-deficiency-as-a-risk-factor-for-the-development-of-autoantibodies-in-patients-with-asia-and-silicone-breast-implants-a-cohort-study-and-review-of-the-literature
#13
Maartje J L Colaris, Rene R van der Hulst, Jan Willem Cohen Tervaert
The development of autoimmunity and/or autoimmune diseases is multifactorial. Vitamin D is one of the factors that might play a role. We postulated that both the presence of adjuvants and insufficient levels of vitamin D may result in the development of autoimmunity in patients with autoimmune/inflammatory syndrome induced by adjuvants (ASIA) in relation to silicone implant incompatibility. We measured vitamin D levels in 135 patients with ASIA in relation to silicone implant incompatibility and related findings to the presence of autoantibodies that are commonly used to diagnose systemic autoimmune diseases...
March 17, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28248078/receptor-mediated-surface-charge-inversion-platform-based-on-porous-silicon-nanoparticles-for-efficient-cancer-cell-recognition-and-combination-therapy
#14
Feng Zhang, Alexandra Correia, Ermei Mäkilä, Wei Li, Jarno Salonen, Jouni J Hirvonen, Hongbo Zhang, Hélder A Santos
Negatively charged surface-modified drug delivery systems are promising for in vivo applications as they have more tendency to accumulate in tumor tissues. However, the inefficient cell uptake of these systems restricts their final therapeutic performance. Here, we have fabricated a receptor-mediated surface charge inversion nanoparticle made of undecylenic acid modified, thermally hydrocarbonized porous silicon (UnTHCPSi) nanoparticles core and sequentially modified with polyethylenimine (PEI), methotrexate (MTX), and DNA aptamer AS1411 (herein termed as UnTHCPSi-PEI-MTX@AS1411) for enhancing the cell uptake of nucleolin-positive cells...
March 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28236798/adherence-and-safety-study-in-patients-on-treatment-with-capecitabine
#15
Francisca Fernández-Ribeiro, Rosario Olivera-Fernández, Carlos Crespo-Diz
BACKGROUND: The introduction of oral antineoplastic agents in therapeutics has caused a change in the treatment strategy against cancer. The objective of this study was to analyze the adherence in patients to treatment with capecitabine, their adverse events, and the overall health status of patients, as well as the relationship of these factors with adherence. METHOD: An observational, prospective study at 7 months, in a cohort of patients on capecitabine treatment, including treatment initiations and continuations, regardless of diagnosis or indication...
March 1, 2017: Farmacia Hospitalaria
https://www.readbyqxmd.com/read/28216833/silicone-breast-implants-and-echocardiographic-interactions-a-brand-new-study
#16
Roberto Cuomo, Giuseppe Nisi, Luca Grimaldi, Cesare Brandi, Carlo D'Aniello
No abstract text is available yet for this article.
September 2016: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/28186859/multimodality-imaging-based-evaluation-of-single-lumen-silicone-breast-implants-for-rupture
#17
Stephen J Seiler, Pooja B Sharma, Jody C Hayes, Ramapriya Ganti, Ann R Mootz, Emily D Eads, Sumeet S Teotia, W Phil Evans
Breast implants are frequently encountered on breast imaging studies, and it is essential for any radiologist interpreting these studies to be able to correctly assess implant integrity. Ruptures of silicone gel-filled implants often occur without becoming clinically obvious and are incidentally detected at imaging. Early diagnosis of implant rupture is important because surgical removal of extracapsular silicone in the breast parenchyma and lymphatics is difficult. Conversely, misdiagnosis of rupture may prompt a patient to undergo unnecessary additional surgery to remove the implant...
March 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28175968/augmentation-of-the-nipples-reconstructed-with-modified-top-hat-flap-using-dermal-grafts-in-implant-based-breast-reconstruction-a-comparative-study
#18
Hoon Kim, Sang Il Kim, Won Ha, Chi Sun Yoon, Taik Jong Lee, Kyu Nam Kim
BACKGROUND: Nipple reconstruction in implant-based breast reconstruction remains challenging, as the remaining thin skin envelope results in a less projected neo-nipple with a reduced volume. This study presents a modified top-hat flap technique with rolled dermal grafts from the dog-ears of lateral wings for augmenting reconstructed nipples during implant-based breast reconstruction. METHODS: Between April 2011 and December 2014, among 34 patients who underwent immediate post-mastectomy reconstruction with a direct silicone implant, nipple reconstruction was performed using the modified top-hat flap technique in only 21 patients (group A), whereas 13 patients underwent the modified top-hat flap technique with rolled dermal grafts from the dog-ears of lateral wings (group B)...
February 7, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28160072/systemic-sclerosis-with-anti-rna-polymerase-iii-positivity-following-silicone-breast-implant-rupture-possible-role-of-b-cell-depletion-and-implant-removal-in-the-treatment
#19
REVIEW
Francesca Dall'Ara, Maria-Grazia Lazzaroni, Chiara M Antonioli, Paolo Airò
Despite some case reports and small series of women with silicone breast implants (SBI) developing Systemic Sclerosis (SSc), no clear evidence of an association of SBI with SSc is available. However, SSc is characterized by clinical and immunological heterogeneity and autoantibodies are currently the best markers to stratify this heterogeneity of patients. Therefore, we have reviewed the literature for details of autoantibody characterization in reports of SSc associated with SBI. Moreover, the case of an anti-RNA polymerase III-positive SSc with rapid onset and progression, in which SBI rupture was found is described...
May 2017: Rheumatology International
https://www.readbyqxmd.com/read/28134037/destiny-rides-again-the-reappearance-of-silicone-gel-filled-breast-implant-toxicity
#20
A E Brawer
Background Twenty-five years ago attorneys representing ailing women in class action litigation against silicone breast implant manufacturers made the procedural error of defining silicone-induced toxicity in the courtroom before it was properly studied in the exam room. This aberrant methodology perverted the proper research process, rendered verification of any real disease elusive, and cemented the groundwork for a repeat public health crisis potentially affecting two million women in the USA who possess new silicone gel devices inserted over the past 10 years...
January 1, 2017: Lupus
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