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https://www.readbyqxmd.com/read/27914177/virtual-touch-tissue-imaging-and-quantification-in-the-evaluation-of-thyroid-nodules
#1
Hang Zhou, Xian-Li Zhou, Hui-Xiong Xu, Dan-Dan Li, Bo-Ji Liu, Yi-Feng Zhang, Jun-Mei Xu, Xiao-Wan Bo, Xiao-Long Li, Le-Hang Guo, Shen Qu
OBJECTIVES: To investigate the diagnostic performance of a 2-dimensional shear wave elastographic technique (Virtual Touch tissue imaging and quantification [VTIQ]; Siemens Medical Solutions, Mountain View, CA) for predicting thyroid malignancy. METHODS: A total of 302 thyroid nodules underwent conventional sonography and VTIQ before fine-needle aspiration examination or surgery. Compared with histopathologic or cytologic results in combination with follow-up, the diagnostic performance of various shear wave speed (SWS) indices (minimum [SWSmin ], maximum [SWSmax ], and mean [SWSmean ]) on VTIQ as well as conventional sonographic features for predicting thyroid malignancy was evaluated in all of the nodules...
December 3, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27914123/extending-the-indications-for-autologous-breast-reconstruction-using-a-two-stage-modified-goldilocks-procedure-a-case-report
#2
Jean-Claude D Schwartz, Piotr P Skowronksi
Post-mastectomy reconstruction is performed using implant-based or autologous techniques. Many women refuse or are poor candidates for implant-based reconstruction. We previously described a single-stage autologous technique that was most applicable in obese women with significant ptosis that made use of the mastectomy skin flap and subcutaneous tissue to reconstruct a breast mound. Here, we extend this technique to smaller breasted women by incorporating a second stage of skin tailoring and fat grafting. This technique does not require donor site surgery nor extended operative and recovery times...
December 3, 2016: Breast Journal
https://www.readbyqxmd.com/read/27914026/limbal-stem-cell-and-oral-mucosal-epithelial-transplantation-from-ex-vivo-cultivation-in-lscd-induced-rabbits-histology-and-immunologic-study-of-the-transplant-epithelial-sheet
#3
Napaporn Tananuvat, Kanokkan Bumroongkit, Chainarong Tocharusa, Umnat Mevatee, Aphisek Kongkaew, Somsanguan Ausayakhun
PURPOSE: To evaluate the results of cultivated limbal epithelial and oral mucosal epithelial transplantation (CLET and COMET) in limbal stem cell deficiency (LSCD)-induced rabbit model. MATERIALS AND METHODS: Six New Zealand white rabbits were divided into two groups of three rabbits each. Limbal tissue was harvested from the first group, and oral mucosal biopsy was obtained from the second group. The tissues were cultured using an explant technique with amniotic membrane as a substrate and co-culture with the 3T3 fibroblast and air-lifting method...
December 2, 2016: International Ophthalmology
https://www.readbyqxmd.com/read/27913176/rotary-ultrasonic-bone-drilling-improved-pullout-strength-and-reduced-damage
#4
Vishal Gupta, Pulak M Pandey, Vadim V Silberschmidt
Bone drilling is one of the most common operations used to repair fractured parts of bones. During a bone drilling process, microcracks are generated on the inner surface of the drilled holes that can detrimentally affect osteosynthesis and healing. This study focuses on the investigation of microcracks and pullout strength of cortical-bone screws in drilled holes. It compares conventional surgical bone drilling (CSBD) with rotary ultrasonic bone drilling (RUBD), a novel approach employing ultrasonic vibration with a diamond-coated hollow tool...
November 29, 2016: Medical Engineering & Physics
https://www.readbyqxmd.com/read/27913129/preoperative-planning-and-operative-techniques-of-the-shorter-tapered-stem-compared-to-the-metaphyseal-fit-stem-in-cementless-total-hip-arthroplasty
#5
Hiroshi Imai, Joji Miyawaki, Tomomi Kamada, Akira Maruishi, Jun Takeba, Hiromasa Miura
BACKGROUND: In order to prevent postoperative dislocation due to prosthetic impingement as a result of total hip arthroplasty (THA), the combined anteversion (CA) theory, which combines the anteversion of the femoral stem and the acetabular socket, has been revised in recent years. Particularly, it is necessary to keep CA within the target zone. METHODS: The aim of this study was to investigate whether postoperative CA can be kept within the target zone while using the operative technique which prepares the socket first in cementless THA, by estimating the anteversion of the metaphyseal fit stem or the shorter, tapered wedge stem using preoperative 3-dimensional computerized planning, and by adjusting the anteversion of the socket using a navigation system that considers CA...
November 10, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27913037/minimally-invasive-operative-techniques-is-less-always-more
#6
EDITORIAL
Kyle H Sheetz, Justin B Dimick
No abstract text is available yet for this article.
November 29, 2016: Surgery
https://www.readbyqxmd.com/read/27912973/micro-ureteroscopy-for-the-treatment-of-distal-ureteral-calculi-in-children
#7
Mehmet Mazhar Utanğaç, Ahmet Ali Sancaktutar, Abdulkadir Tepeler
OBJECTIVE: The objective of this study was to demonstrate the efficacy and safety of micro-ureteroscopy (micro-URS) in the management of distal ureteral stones in the pediatric population. MATERIALS AND METHODS: A total of 11 children, who had undergone micro-URS between September 2015 and April 2016 with the indication of distal ureteral calculi in two referral centers, were retrospectively evaluated. The procedures were performed with the patient in the lithotomy position under general anesthesia using the standard URS technique with a micro-ureteroscope that has a caliber of 4...
November 17, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27912972/fate-of-males-with-urethral-y-duplication-40-year-long-follow-up-in-8-patients
#8
Mario Lima, Francesca Destro, Neil Di Salvo, Tommaso Gargano, Giovanni Ruggeri
PURPOSE: The spectrum of male urethral duplication is heterogeneous and it includes the Y-duplication. The malformation is rare and there is only a few case series reported in the literature. The management of Y-forms remains challenging for the surgeon and the long-term follow-up is still scarcely investigated. We report our 40-year experience in the management of patients with Y-duplication. MATERIALS AND METHODS: We conducted a restrospective analysis collecting information of patients with urethral Y-duplication treated at our department from April 1975 to April 2015...
November 17, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27912820/modern-endodontic-microsurgery-concepts-a-clinical-update
#9
REVIEW
Spyros Floratos, Syngcuk Kim
Increased use of the surgical operating microscope in endodontic surgery has elucidated many shortcomings of previous techniques and along with microsurgical instruments and new more biologically acceptable root-end filling materials has started the new microsurgical era in surgical endodontics. Endodontic microsurgery is a minimally invasive technique that results in less postoperative pain and edema and faster wound healing. It offers a significantly higher success rate than traditional apical surgery technique...
January 2017: Dental Clinics of North America
https://www.readbyqxmd.com/read/27912798/bilateral-anomalous-drainage-of-the-posterior-divisions-of-renal-veins-into-the-azygos-venous-system-in-a-20-year-old-woman-a-case-report
#10
Pedro Pallangyo, Frederick Lyimo, Paulina Nicholaus, Stephano Masatu, Mohamed Janabi
BACKGROUND: Renal vein anomalies are relatively infrequent and generally asymptomatic. Preoperative knowledge of such variants is, however, of paramount importance in several angiographic and surgical procedures including renal venography, renal vein sampling, spermatic embolization, and renal transplantation. Inadequate knowledge and failure to recognize such anatomic variations may lead to several operative hazards including hemorrhage, nephrectomy, and even death. CASE PRESENTATION: We report a case of bilateral anomalous drainage of the posterior divisions of renal veins into the azygos venous system in a 20-year-old woman of African descent from Tanzania who presented to us with a 12-year history of recurrent anemia...
December 3, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27912783/exploring-levers-and-barriers-to-accessing-primary-care-for-marginalised-groups-and-identifying-their-priorities-for-primary-care-provision-a-participatory-learning-and-action-research-study
#11
Patrick O'Donnell, Edel Tierney, Austin O'Carroll, Diane Nurse, Anne MacFarlane
BACKGROUND: The involvement of patients and the public in healthcare has grown significantly in recent decades and is documented in health policy documents internationally. Many benefits of involving these groups in primary care planning have been reported. However, these benefits are rarely felt by those considered marginalised in society and they are often excluded from participating in the process of planning primary care. It has been recommended to employ suitable approaches, such as co-operative and participatory initiatives, to enable marginalised groups to highlight their priorities for care...
December 3, 2016: International Journal for Equity in Health
https://www.readbyqxmd.com/read/27912204/incremental-diagnostic-value-of-combined-quantitative-and-qualitative-parameters-of-magnetocardiography-to-detect-coronary-artery-disease
#12
Eun-Seok Shin, Yat-Yin Lam, Ae-Young Her, Johannes Brachmann, Friedrich Jung, Jai-Wun Park
BACKGROUND/OBJECTIVES: Magnetocardiography (MCG) has been proposed as a non-invasive and functional technique with high accuracy for diagnosis of myocardial ischemia. This study sought to investigate the incremental diagnostic value of combined quantitative and qualitative parameters of MCG to detect coronary artery disease (CAD). METHODS: Ninety six patients with suspected CAD who underwent coronary angiography were enrolled in the analysis to test the diagnostic accuracy of 2 MCG parameters (a quantitative parameter of the percent change of ST-segment fluctuation score and a qualitative parameter of non-dipole phenomenon)...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27911765/optical-magnetic-detection-of-single-neuron-action-potentials-using-quantum-defects-in-diamond
#13
John F Barry, Matthew J Turner, Jennifer M Schloss, David R Glenn, Yuyu Song, Mikhail D Lukin, Hongkun Park, Ronald L Walsworth
Magnetic fields from neuronal action potentials (APs) pass largely unperturbed through biological tissue, allowing magnetic measurements of AP dynamics to be performed extracellularly or even outside intact organisms. To date, however, magnetic techniques for sensing neuronal activity have either operated at the macroscale with coarse spatial and/or temporal resolution-e.g., magnetic resonance imaging methods and magnetoencephalography-or been restricted to biophysics studies of excised neurons probed with cryogenic or bulky detectors that do not provide single-neuron spatial resolution and are not scalable to functional networks or intact organisms...
November 22, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27911517/universal-signatures-of-quantum-critical-points-from-finite-size-torus-spectra-a-window-into-the-operator-content-of-higher-dimensional-conformal-field-theories
#14
Michael Schuler, Seth Whitsitt, Louis-Paul Henry, Subir Sachdev, Andreas M Läuchli
The low-energy spectra of many body systems on a torus, of finite size L, are well understood in magnetically ordered and gapped topological phases. However, the spectra at quantum critical points separating such phases are largely unexplored for (2+1)D systems. Using a combination of analytical and numerical techniques, we accurately calculate and analyze the low-energy torus spectrum at an Ising critical point which provides a universal fingerprint of the underlying quantum field theory, with the energy levels given by universal numbers times 1/L...
November 18, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27911458/spondylodiscitis-a-rare-complication-following-percutaneous-nephrostomy
#15
Francesco Chiancone, Maurizio Fedelini, Clemente Meccariello, Luigi Pucci, Marco Fabiano, Paolo Fedelini
Spondylodiscitis is an inflammation of the intervertebral disc and the adjacent vertebral bodies. The spondylodiscitis can not only be a complication of medical interventions such as an operation near spinal column but also urogenital and vascular interventions and intravenous catheter use. A 71-year-old man was admitted to our emergency department with fever and severe abdominal pain. Antibiotic therapy had been performed with intravenous administration of 2 g of ceftriaxone and the patient underwent the placement of a percutaneous nephrostomy according to Seldinger technique...
November 28, 2016: Urologia
https://www.readbyqxmd.com/read/27911262/magnetic-resonance-elastography-vs-transient-elastography-in-detection-of-fibrosis-and-noninvasive-measurement-of-steatosis-in-patients-with-biopsy-proven-nonalcoholic-fatty-liver-disease
#16
Charlie C Park, Phirum Nguyen, Carolyn Hernandez, Ricki Bettencourt, Kimberly Ramirez, Lynda Fortney, Jonathan Hooker, Ethan Sy, Mosab H Alquiraish, Mark A Valasek, Emily Rizo, Lisa Richards, David Brenner, Claude B Sirlin, Rohit Loomba
BACKGROUND & AIMS: Magnetic-resonance-imaging (MRI) techniques and ultrasound-based transient elastography (TE) can be used in noninvasive diagnosis of fibrosis and steatosis in patients with nonalcoholic fatty liver disease (NAFLD). We performed a prospective study to compare the performance of magnetic resonance elastography (MRE) vs TE for in diagnosis of fibrosis, and MRI-based proton density fat fraction (MRI-PDFF) analysis vs TE-based controlled attenuation parameter (CAP) for diagnosis of steatosis in patients undergoing biopsy to assess NAFLD...
October 27, 2016: Gastroenterology
https://www.readbyqxmd.com/read/27911089/don-t-say-that-to-me-opposition-to-targeting-in-weight-centric-intervention-messages
#17
Becky Robinson, Samantha Coveleski
Obesity is a global health issue. Despite well-intentioned efforts by public institutions, traditional health promotion techniques often lead to offending those most in need of weight loss. For example, when Bryn Mawr College targeted overweight students to offer a free fitness and nutrition program, it was met with accusations of fat-shaming, indicating that weight-centric messages operate in a more complex sociocultural system than many public health concerns. To better understand reactions to weight-centric health messages, college-aged women evaluated the Bryn Mawr College e-mail...
December 2, 2016: Health Communication
https://www.readbyqxmd.com/read/27911065/-gastric-tube-esophagoplasty-using-the-retroesternal-route-in-children
#18
L García Martínez, J A Molino Gahete, S Redecillas Ferreiro, E Bordón Cabrera, J Bueno Recio, G Guillén Burrieza, C Giné Prades, A Lara Valtueña, J Lloret Roca
INTRODUCTION: Esophageal replacement is a surgical alternative once native esophagus can't be preserved. Different organs and routes for the replacement have been described, being the retroesternal route the least used. The aim is to present our results using gastric tube esophagoplasty with a retroesternal approach. PATIENTS AND METHODS: We performed a retrospective and descriptive study of 11 patients operated from 2000 to 2015. Median age at surgery was 2.2 years (5 months-9 years) and median weight was 11...
January 25, 2016: Cirugía Pediátrica: Organo Oficial de la Sociedad Española de Cirugía Pediátrica
https://www.readbyqxmd.com/read/27910915/locating-the-quantum-critical-point-of-the-bose-hubbard-model-through-singularities-of-simple-observables
#19
Mateusz Łącki, Bogdan Damski, Jakub Zakrzewski
We show that the critical point of the two-dimensional Bose-Hubbard model can be easily found through studies of either on-site atom number fluctuations or the nearest-neighbor two-point correlation function (the expectation value of the tunnelling operator). Our strategy to locate the critical point is based on the observation that the derivatives of these observables with respect to the parameter that drives the superfluid-Mott insulator transition are singular at the critical point in the thermodynamic limit...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27910631/a-simple-approach-to-spectrally-resolved-fluorescence-and-bright-field-microscopy-over-select-regions-of-interest
#20
Peter D Dahlberg, Christopher T Boughter, Nabil F Faruk, Lu Hong, Young Hoon Koh, Matthew A Reyer, Alon Shaiber, Aiman Sherani, Jiacheng Zhang, Justin E Jureller, Adam T Hammond
A standard wide field inverted microscope was converted to a spatially selective spectrally resolved microscope through the addition of a polarizing beam splitter, a pair of polarizers, an amplitude-mode liquid crystal-spatial light modulator, and a USB spectrometer. The instrument is capable of simultaneously imaging and acquiring spectra over user defined regions of interest. The microscope can also be operated in a bright-field mode to acquire absorption spectra of micron scale objects. The utility of the instrument is demonstrated on three different samples...
November 2016: Review of Scientific Instruments
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