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https://www.readbyqxmd.com/read/28072394/three-dimensional-cascaded-system-analysis-of-a-50-%C3%A2%C2%B5m-pixel-pitch-wafer-scale-cmos-active-pixel-sensor-x-ray-detector-for-digital-breast-tomosynthesis
#1
Chumin Zhao, Nikita Vassiljev, Anastasios Konstantinidis, Robert Speller, Jerzy Kanicki
High-resolution, low-noise x-ray detectors based on the complementary metal-oxide-semiconductor (CMOS) active pixel sensor (APS) technology have been developed and proposed for digital breast tomosynthesis (DBT). In this study, we evaluated the three-dimensional (3D) imaging performance of a 50 ��m pixel pitch CMOS APS x-ray detector named DynAMITe (Dynamic Range Adjustable for Medical Imaging Technology). The two-dimensional (2D) angle-dependent modulation transfer function (MTF), normalized noise power spectrum (NNPS), and detective quantum efficiency (DQE) were experimentally characterized and modeled using the cascaded system analysis at oblique incident angles up to 30��...
January 10, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28068732/-concept-for-a-national-implant-registry-to-improve-patient-safety
#2
L Prantl, U von Fritschen, J Liebau, J von Hassel, E M Baur, P M Vogt, R E Giunta, R E Horch
Since the introduction of silicone implants, several events have led to considerable uncertainty among the patients, public, and users. So far, however, the necessary steps to significantly improving patient safety have not been taken in any of these cases. Requiring stricter approvals for medical devices, improving monitoring by the regulatory authorities and the revision of the Medical Devices Directive are all initial steps in the right direction towards a change in policy, but are insufficient as an early warning system...
December 2016: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
https://www.readbyqxmd.com/read/28032163/transition-from-round-to-shaped-implants-in-immediate-breast-reconstruction-our-preferred-approach-and-clinical-outcomes
#3
Thomas A Imahiyerobo, Kevin H Small, Robyn Sackeyfio, Hannah Hoffman, Mia Talmor
BACKGROUND: Smooth, round, silicone implants predominate device-based breast reconstruction in the USA; despite their prevalence, complications can include bottoming out, superior contour deformity, rippling, and/or lateral malposition. This complication profile increases the need for revision surgery and subsequent patient dissatisfaction. With the resurgence of shaped, textured, silicone implants in the USA, we report the senior author's success with these devices and outline a strategy to optimize outcomes in breast reconstruction surgery...
December 28, 2016: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28027218/discussion-risk-factor-analysis-for-capsular-contracture-malposition-and-late-seroma-in-subjects-receiving-natrelle-410-form-stable-silicone-breast-implants
#4
Joseph J Disa
No abstract text is available yet for this article.
January 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27943644/quercetin-based-modified-porous-silicon-nanoparticles-for-enhanced-inhibition-of-doxorubicin-resistant-cancer-cells
#5
Zehua Liu, Vimalkumar Balasubramanian, Chinmay Bhat, Mikko Vahermo, Ermei Mäkilä, Marianna Kemell, Flavia Fontana, Agne Janoniene, Vilma Petrikaite, Jarno Salonen, Jari Yli-Kauhaluoma, Jouni Hirvonen, Hongbo Zhang, Hélder A Santos
One of the most challenging obstacles in nanoparticle's surface modification is to achieve the concept that one ligand can accomplish multiple purposes. Upon such consideration, 3-aminopropoxy-linked quercetin (AmQu), a derivative of a natural flavonoid inspired by the structure of dopamine, is designed and subsequently used to modify the surface of thermally hydrocarbonized porous silicon (PSi) nanoparticles. This nanosystem inherits several advanced properties in a single carrier, including promoted anticancer efficiency, multiple drug resistance (MDR) reversing, stimuli-responsive drug release, drug release monitoring, and enhanced particle-cell interactions...
December 12, 2016: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/27940906/unraveling-factors-influencing-early-seroma-formation-in-breast-augmentation-surgery
#6
Marcos Sforza, Rodwan Husein, Connor Atkinson, Renato Zaccheddu
BACKGROUND: It is often assumed that seroma formation trails closely behind with incidence rates reported at 1 to 2%. Seroma is highly problematic for both the surgeon and patient and results in both patient anxiety and discomfort, succeeded by frequent outpatient visits, follow-up treatment, increased costs, and potentially hampered aesthetic outcomes. Consequently, it is now more important than ever to study seroma and to assess its pathophysiology and mechanisms of prevention. OBJECTIVES: The aim of this study was to isolate and identify risk factors that may be associated with early seroma formation...
December 9, 2016: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/27894917/incidence-of-breast-implant-rupture-in-a-12-year-retrospective-cohort-evidence-of-quality-discrepancy-depending-on-the-range
#7
Frédéric Seigle-Murandi, François Lefebvre, Catherine Bruant-Rodier, Frédéric Bodin
BACKGROUND & OBJECTIVE: The majority of studies assessing the rupture rate of breast implants were performed by the breast implant manufacturing industry with questionable independence. After repetitive removals of ruptured implants from the same model, our team decided to assess the rupture rate and the estimated risk thereof for most of the silicone gel-filled implants we have used since they regained market approval in France in 2001. METHODS: Our study is a retrospective cohort of 809 patients operated in our University Hospital from 2001 to 2013 for cosmetic or reconstructive goals...
January 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27884086/predictors-of-satisfaction-in-patient-with-silicone-breast-implants-and-its-association-with-drug-intake-habits
#8
Inês Correia-Sá, M Natália D S Cordeiro, José Amarante, Marisa Marques
BACKGROUND: Satisfaction is an important outcome variable in surgical success. The purpose of this study is to evaluate predictors of satisfaction in women submitted to silicone textured breast implant surgery. METHODS: A retrospective evaluation of women receiving textured silicone breast implants was performed. Patients were divided in four groups: cosmetic cohort (n = 104), reconstructive cohort (n = 120), general population control cohort (n = 120) and aesthetic control cohort (n = 54)...
November 24, 2016: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/27873527/numerical-evaluation-of-scar-after-breast-reconstruction-with-abdominal-advancement-flap
#9
M Kovář, L Čapek, L Vítová, M Molitor
BACKGROUND: The treatment of breast cancer has developed a lot during the last decade, nevertheless it still remains a considerable social and economical problem all over the world. The choice of the surgical procedure depends on a patients protocol and the surgeons preferences. The aim of this study is to evaluate the stress on the scar after breast reconstruction. METHODS: Mathematical modeling of the sutured skin flap used for breast implant placement was divided into the following two steps...
2016: Acta Chirurgiae Plasticae
https://www.readbyqxmd.com/read/27836857/role-of-macrotextured-shaped-extra-full-projection-cohesive-gel-implants-in-primary-aesthetic-breast-augmentation
#10
Paolo Montemurro, Mubashir Cheema, Per Hedén, Massimiliano Ferri, Alessandro Quattrini Li, Stefano Avvedimento
BACKGROUND: Extra full projection implants are used in a select group of aesthetic breast surgery patients. Their use is selective enough that they have not been included in long term manufacturer studies and the indications for their use have attracted much debate. Only a handful of studies have reported the outcomes from implantation of these devices. OBJECTIVES: We review our experience of using extra full projection anatomically shaped macrotextured silicone gel implants discussing our rationale, indications, and results...
November 11, 2016: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/27826488/open-capsulotomy-an-effective-but-overlooked-treatment-for-capsular-contracture-after-breast-augmentation
#11
Eric Swanson
BACKGROUND: The prevailing theory for capsular contracture after breast augmentation is a subclinical capsular infection. A capsulectomy, site change, and implant replacement are recommended. An open capsulotomy leaves the capsule in the patient. Theoretically, such a procedure would be ineffective because it does not remove the infected tissue. Recurrences occurred frequently in women treated in the 1970s when leaky silicone gel implants were in use. Open capsulotomy has not been studied in women implanted with third-generation devices...
October 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/27826457/distant-migration-of-multiple-siliconomas-in-lower-extremities-following-breast-implant-rupture-case-report
#12
Joo Hyun Oh, Seung Yong Song, Dae Hyun Lew, Dong Won Lee
Siliconoma from ruptured breast implants has been reported in multiple body sites, including but not limited to the breast parenchyma, axillary lymph nodes, upper arm, and even lower leg. In this regard, we report a rare case of distant silicone migration to the lower extremities after traumatic breast implant rupture. A 55-year-old Asian woman who received bilateral augmentation mammoplasty 20 years ago presented with ruptured breast implants from a car accident 2 years earlier. Magnetic resonance imaging confirmed intracapsular and extracapsular rupture of the right breast implant, showing "linguine sign...
October 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/27782705/quantification-of-breast-lesion-compositions-using-low-dose-spectral-mammography-a-feasibility-study
#13
Huanjun Ding, David Sennung, Hyo-Min Cho, Sabee Molloi
PURPOSE: The positive predictive power for malignancy can potentially be improved, if the chemical compositions of suspicious breast lesions can be reliably measured in screening mammography. The purpose of this study is to investigate the feasibility of quantifying breast lesion composition, in terms of water and lipid contents, with spectral mammography. METHODS: Phantom and tissue samples were imaged with a spectral mammography system based on silicon-strip photon-counting detectors...
October 2016: Medical Physics
https://www.readbyqxmd.com/read/27776557/mammographically-dense-human-breast-tissue-stimulates-mcf10dcis-com-progression-to-invasive-lesions-and-metastasis
#14
Cecilia W Huo, Mark Waltham, Christine Khoo, Stephen B Fox, Prue Hill, Shou Chen, Grace L Chew, John T Price, Chau H Nguyen, Elizabeth D Williams, Michael Henderson, Erik W Thompson, Kara L Britt
BACKGROUND: High mammographic density (HMD) not only confers a significantly increased risk of breast cancer (BC) but also is associated with BCs of more advanced stages. However, it is unclear whether BC progression and metastasis are stimulated by HMD. We investigated whether patient-derived HMD breast tissue could stimulate the progression of MCF10DCIS.com cells compared with patient-matched low mammographic density (LMD) tissue. METHODS: Sterile breast specimens were obtained immediately after prophylactic mastectomy from high-risk women (n = 10)...
October 25, 2016: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/27769601/radiographic-evaluation-of-vessel-count-and-density-with-quantitative-magnetic-resonance-imaging-during-external-breast-expansion-in-asian-women-a-prospective-clinical-trial
#15
Yujin Myung, Heeyeon Kwon, Changsik Pak, Hobin Lee, Jae Hoon Jeong, Chan Yeong Heo
BACKGROUND: Breast augmentation with fat transfer does not bear the risks associated with silicone implantation. The method can potentially be especially useful in Asian women, who often reject augmentation mammoplasty with implants. This prospective clinical trial evaluated the effects of external breast expansion on breast density and vessel count using magnetic resonance imaging. METHODS: Thirty-four enrolled patients were instructed to apply one of two devices, the conventional BRAVA device (used in the AESTES trial) or a novel external expansion device (EVERA) designed for Asian women, continuously for 8 h per day for 12 weeks...
September 28, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27766402/management-of-implant-exposure-in-one-stage-breast-reconstruction-using-titanium-coated-polypropylene-mesh-sub-mammary-intercostal-perforator-flap
#16
Michele Antonio De Riggi, Nicola Rocco, Giulio Gherardini, Emanuela Esposito, Massimiliano D'Aiuto
INTRODUCTION: One-stage implant-based breast reconstruction using titanium-coated polypropylene mesh is a novel approach widely used in Europe. Complication rates in breast reconstruction with the use of titanium-coated meshes seem to be comparable to those in patients with implant-based breast reconstruction alone. However, the use of synthetic meshes in implant-based breast reconstructive surgery leads to new clinical scenarios with the need for the breast surgeon to face new complications...
December 2016: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/27757319/erratum-silicone-breast-implant-and-automatic-implantable-cardioverter-defibrillator-can-they-coexist-a-case-report-erratum
#17
(no author information available yet)
[This corrects the article DOI: 10.1097/GOX.0000000000000855.].
September 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/27708957/sj%C3%A3-gren-s-syndrome-after-silicone-breast-implantation
#18
Lütfi Akyol, Soner Önem, Metin Özgen, Mehmet Sayarlıoğlu
Sjögren's syndrome, an autoimmune disease characterized by lymphocytic infiltration of the lacrimal and salivary glands, leads to dryness of the mouth and eyes. Herein, we present a case of Sjögren's syndrome that developed after silicone breast implantation. A cause-effect relationship between breast implantation and Sjögren's syndrome has not been established. However, the possibility of such an association should be considered when a patient with silicone implants is admitted to the hospital for treatment of Sjögren's syndrome...
December 2015: European Journal of Rheumatology
https://www.readbyqxmd.com/read/27699393/long-term-health-outcomes-in-women-with-silicone-gel-breast-implants
#19
Ethan M Balk, Gowri Raman
No abstract text is available yet for this article.
October 4, 2016: Annals of Internal Medicine
https://www.readbyqxmd.com/read/27699392/long-term-health-outcomes-in-women-with-silicone-gel-breast-implants
#20
Tim Brown
No abstract text is available yet for this article.
October 4, 2016: Annals of Internal Medicine
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