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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/27913961/prediction-of-postoperative-clinical-recovery-of-drop-foot-attributable-to-lumbar-degenerative-diseases-via-a-bayesian-network
#2
Shota Takenaka, Hiroyuki Aono
BACKGROUND: Drop foot resulting from degenerative lumbar diseases can impair activities of daily living. Therefore, predictors of recovery of this symptom have been investigated using univariate or/and multivariate analyses. However, the conclusions have been somewhat controversial. Bayesian network models, which are graphic and intuitive to the clinician, may facilitate understanding of the prognosis of drop foot resulting from degenerative lumbar diseases. QUESTIONS/PURPOSES: (1) To show a layered correlation among predictors of recovery from drop foot resulting from degenerative lumbar diseases; and (2) to develop support tools for clinical decisions to treat drop foot resulting from lumbar degenerative diseases...
December 2, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27911378/iridium-oxide-reduced-graphene-oxide-nanohybrid-thin-film-modified-screen-printed-electrodes-as-disposable-electrochemical-paper-microfluidic-ph-sensors
#3
Jiang Yang, Tae-Joon Kwak, Xiaodong Zhang, Robert McClain, Woo-Jin Chang, Sundaram Gunasekaran
A facile, controllable, inexpensive and green electrochemical synthesis of IrO2-graphene nanohybrid thin films is developed to fabricate an easy-to-use integrated paper microfluidic electrochemical pH sensor for resource-limited settings. Taking advantages from both pH meters and strips, the pH sensing platform is composed of hydrophobic barrier-patterned paper micropad (µPAD) using polydimethylsiloxane (PDMS), screen-printed electrode (SPE) modified with IrO2-graphene films and molded acrylonitrile butadiene styrene (ABS) plastic holder...
November 22, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27910590/electromagnetic-interference-reduction-design-of-alternating-integrator-for-east
#4
D M Liu, B N Wan, J Li, Y Wang, B Shen, X Z Gong, Y G He
An alternating integrator has been designed for the Experimental Advanced Superconducting Tokamak that is intended for long pulse operation of up to 1000 s. The electromagnetic operating environment for the device is so complex that it could affect the performance of the integrator. The new integrator system is carefully designed and actualized based on specific reduced electromagnetic interference requirements, which were formulated based on consideration of processing of the input signals, the isolation properties, and the circuit board layout and grounding...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910476/operation-results-of-the-kstar-far-infrared-interferometer
#5
June-Woo Juhn, K C Lee, H M Wi, Y S Kim, Y U Nam
The 2015 KSTAR experimental campaign was the first year of routine measurement with a far infrared interferometer (FIRI) utilizing 118.87 μm CH3OH lasers at maximum 200 mW CW beam power. By using rtEFIT reconstruction, the path lengths of interferometers can be calculated and so the line-averaged electron densities n¯e from the FIRI and a millimeter-wave interferometer were in excellent agreement. In this way, the number of successfully diagnosed discharges is counted: 1003 shots or 83.7% of sustained discharges, defined as shots of plasma current IP ≥ 0...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27909659/reliability-of-the-planned-pedicle-screw-trajectory-versus-the-actual-pedicle-screw-trajectory-using-intra-operative-3d-ct-and-image-guidance
#6
Catherine A Miller, Charles G Ledonio, Matthew A Hunt, Farhan Siddiq, David W Polly
BACKGROUND: Technological advances, including navigation, have been made to improve safety and accuracy of pedicle screw fixation. We evaluated the accuracy of the virtual screw placement (Stealth projection) compared to actual screw placement (intra-operative O-Arm) and examined for differences based on the distance from the reference frame. METHODS: A retrospective evaluation of prospectively collected data was conducted from January 2013 to September 2013. We evaluated thoracic and lumbosacral pedicle screws placed using intraoperative O-arm and Stealth navigation by obtaining virtual screw projections and intraoperative O-arm images after screw placement...
2016: International Journal of Spine Surgery
https://www.readbyqxmd.com/read/27909658/minimally-invasive-surgery-for-lumbar-synovial-cysts-with-coexisting-degenerative-spondylolisthesis
#7
Daniel R Denis, Daniel Hirt, Saumya Shah, Daniel C Lu, Langston T Holly
BACKGROUND: About one third of lumbar synovial cysts are associated with degenerative spondylolisthesis. Segmental instability is thought to contribute to the pathogenesis and recurrence of synovial cysts and lumbar fusion has been advocated as a treatment of choice in the presence of spondylolisthesis. In patients with spondylolisthesis, minimally invasive resection of lumbar synovial cysts, without fusion, could minimize surgically induced segmental instability while providing good pain relief...
2016: International Journal of Spine Surgery
https://www.readbyqxmd.com/read/27909358/sensewearmini-and-actigraph-gt3x-accelerometer-classification-of-observed-sedentary-and-light-intensity-physical-activities-in-a-laboratory-setting
#8
Lynne M Feehan, Charles H Goldsmith, April Y F Leung, Linda C Li
Purpose: To compare the ability of SenseWear Mini (SWm) and Actigraph GT3X (AG3) accelerometers to differentiate between healthy adults' observed sedentary and light activities in a laboratory setting. Methods: The 22 participants (15 women, 7 men), ages 19 to 72 years, wore SWm and AG3 monitors and performed five sedentary and four light activities for 5 minutes each while observed in a laboratory setting. Performance was examined through comparisons of accuracy, sensitivity, specificity, positive and negative predictive values, and positive and negative likelihood ratios...
2016: Physiotherapy Canada. Physiothérapie Canada
https://www.readbyqxmd.com/read/27908277/comparison-of-unilateral-and-bilateral-percutaneous-vertebroplasty-for-osteoporotic-vertebral-compression-fractures-a-systematic-review-and-meta-analysis
#9
Haolin Sun, Chunde Li
BACKGROUND: The aim of this meta-analysis is to examine the safety and effectiveness of unilateral percutaneous vertebroplasty (PVP) for treatment of osteoporotic vertebral compression fractures (OVCFs) compared with that of bilateral treatment. METHODS: The multiple databases including PubMed, Springer, EMBASE, OVID, and China Journal Full-text Database were adopted to search for relevant studies in English or Chinese, and full-text articles involving comparison of unilateral and bilateral PVP surgery were reviewed...
December 1, 2016: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/27906237/diode-pumped-laser-operation-of-pr-sup-3-sup-ba-y-sub-0-8-sub-lu-sub-0-2-sub-sub-2-sub-f-sub-8-sub-in-the-visible-region
#10
Alberto Sottile, Eugenio Damiano, Mauro Tonelli
We report on, to the best of our knowledge, the first growth, spectroscopy, and laser operation of monocrystalline Ba(Y<sub>0.8</sub>Lu<sub>0.2</sub>)<sub>2</sub>F<sub>8</sub> doped with 1.25 at.% of Pr<sup>3+</sup> ions (Pr:BYLF). We studied the spectroscopic properties of this material, particularly in comparison with its isomorph Pr<sup>3+</sup>: BaY<sub>2</sub>F<sub>8</sub> (Pr:BYF). Under diode-pumped excitation, we achieved continuous-wave laser operation in the orange, red, and deep red regions in the three possible crystal orientations...
December 1, 2016: Optics Letters
https://www.readbyqxmd.com/read/27905552/protonation-enhancement-by-dichloromethane-doping-in-low-pressure-photoionization
#11
Jinian Shu, Yao Zou, Ce Xu, Zhen Li, Wanqi Sun, Bo Yang, Haixu Zhang, Peng Zhang, Pengkun Ma
Doping has been used to enhance the ionization efficiency of analytes in atmospheric pressure photoionization, which is based on charge exchange. Compounds with excellent ionization efficiencies are usually chosen as dopants. In this paper, we report a new phenomenon observed in low-pressure photoionization: Protonation enhancement by dichloromethane (CH2Cl2) doping. CH2Cl2 is not a common dopant due to its high ionization energy (11.33 eV). The low-pressure photoionization source was built using a krypton VUV lamp that emits photons with energies of 10...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27904307/hybrid-transvaginal-notes-and-mini-laparoscopic-colectomy-benefit-through-synergy
#12
Jayson M Moloney, Philip S L Gan
BACKGROUND AND OBJECTIVES: Hybrid-natural orifice surgery combines the advantages of traditional transabdominal laparoscopic surgery, while limiting surgical trauma to the abdominal wall. Among various routes of intra-abdominal access, the transvaginal method is most appealing because of its utility and proven safety. We describe a series of 4 colonic resections performed with this approach, combined with minilaparoscopy and needlescopic approaches, and discuss the technical aspects, efficacy, and applicability of this technique...
October 2016: JSLS: Journal of the Society of Laparoendoscopic Surgeons
https://www.readbyqxmd.com/read/27904221/what-have-we-learned-from-100-success-of-press-fit-condylar-rotating-platform-posterior-stabilized-knees-a-5-10-years-followup-by-a-nondesigner
#13
Shrinand V Vaidya, Siddharth Virani, Rajendra Phunde, Abhishek Mahajan
BACKGROUND: Total joint arthroplasties of the hip and knee represent a remarkable feat of modern medicine in terms of reducing pain and restoring function to millions of patients afflicted with severe arthritis. Oftentimes, the performance and longevity of new implants and devices are based on limited data. This is the first study by a non-designer on the press fit condylar rotating platform posterior stabilized (PFC-RP-PS) design with 100' success. This has a relevance, vis-á -vis bias that one may have in terms of reproducibility of technique and funding from the manufacturer...
November 2016: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/27904213/functional-outcome-of-intraarticular-distal-humerus-fracture-fixation-using-triceps-sparing-paratricipital-approach
#14
Vishal Yadav, Pulak Sharma, Ashish Gohiya
BACKGROUND: Displaced intraarticular distal humerus fracture has been conventionally treated operatively with various triceps disrupting approaches. These approaches are associated with several complications, such as triceps weakness, nonunion or delayed union of osteotomy, implant prominence, and delayed mobilization of the elbow. We present the functional outcome of intraarticular distal humerus fracture fixation using a triceps-sparing paratricipital approach which allows early elbow mobilization and preserving triceps strength...
November 2016: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/27904211/post-operative-pain-management-in-shoulder-surgery-suprascapular-and-axillary-nerve-block-by-arthroscope-assisted-catheter-placement
#15
H Çağdaş Basat, D Hakan Uçar, Mehmet Armangil, Berk Güçlü, Mehmet Demirtaş
BACKGROUND: Postoperative pain management is the part of shoulder surgery to improve patient satisfaction, start rehabilitation process rapidly and decrease for hospital stay. Various treatment modalities have been used for pain management, but they have some limitations, side effects and risks. Throughout intraoperative and postoperative period, nerve blocks have been used more popularly than others because of efficacy. For the regional nerve block, local anesthetic should be infiltrated close to the nerve for maximum effect...
November 2016: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/27902615/the-prognostic-significance-of-the-birmingham-vasculitis-activity-score-bvas-with-systemic-vasculitis-patients-transferred-to-the-intensive-care-unit-icu
#16
Federico Biscetti, Angela Carbonella, Federico Parisi, Silvia Laura Bosello, Franco Schiavon, Roberto Padoan, Elisa Gremese, Gianfranco Ferraccioli
Systemic vasculitides represent a heterogeneous group of diseases that share clinical features including respiratory distress, renal dysfunction, and neurologic disorders. These diseases may often cause life-threatening complications requiring admission to an intensive care unit (ICU). The aim of the study was to evaluate the validity and responsiveness of Birmingham Vasculitis Activity Score (BVAS) score to predict survival in patients with systemic vasculitides admitted to ICU.A retrospective study was carried out from 2004 to 2014 in 18 patients with systemic vasculitis admitted to 2 different Rheumatology divisions and transferred to ICU due to clinical worsening, with a length of stay beyond 24 hours...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27900699/the-anconeus-triceps-lateral-flap-approach-for-total-elbow-arthroplasty-in-rheumatoid-arthritis
#17
A Celli, P Bonucci
BACKGROUND: The posterior approaches to the elbow are considered as to allow an excellent joint exposure for total elbow arthroplasty. One complication that is well recognized is the insufficiency of the extensor mechanism in particular with the patients with poor tendon quality as in the rheumatoid diseases. The purpose of this paper is to present a new triceps-splitting exposure for total elbow arthroplasty used in rheumatoid patients with their preliminary results. METHODS: Fifteen consecutive patients with rheumatoid disease at grades III to V of the Larsen grading scale underwent total elbow replacement using the new triceps-splitting exposure called anconeus-triceps lateral flap and it preserves the integrity of the medial proper triceps tendon...
December 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/27900545/functional-and-oncological-outcome-after-surgical-resection-of-the-scapula-and-clavicle-for-primary-chondrosarcoma
#18
S P F T Nota, M J A M Russchen, K A Raskin, H J Mankin, F J Hornicek, J H Schwab
PURPOSE: The scapula is a relatively common site for chondrosarcoma to develop in contrary to the clavicle, which is rarely affected by these tumors. The aim of this study is to determine the functional and oncological outcome for patients treated operatively for scapular or clavicular chondrosarcoma. METHODS: In this single-center retrospective study, we included a sample of 20 patients that received the diagnosis of a primary chondrosarcoma of the scapula or clavicle...
November 29, 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/27900509/conversion-of-hip-fusion-to-total-hip-arthroplasty-clinical-radiological-outcomes-and-complications-in-40-hips
#19
Mustafa Celiktas, Ozkan Kose, Adil Turan, Ferhat Guler, Cagri Ors, Emre Togrul
OBJECTIVE: The purpose of this retrospective study is to report the clinical and radiological outcome of total hip arthroplasty in patients with previous hip arthrodesis. PATIENTS AND METHODS: We retrospectively reviewed 28 (40 hips) prospectively followed patients in whom ankylosed hips were converted to total hip arthroplasty (THA) between 2010 and 2014 in our institution. The average age at the time of the conversion operation was 40.8 ± 9.8 years (range 24-62)...
November 29, 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27900304/clinical-outcome-of-design-modifications-to-the-cls-spotorno-stem-in-total-hip-replacement
#20
Angelo Graceffa, Pier Francesco Indelli, Leonardo Latella, Paolo Poli, Alexander Fulco, Massimiliano Marcucci
PURPOSE: historically, the original CLS Spotorno Stem has demonstrated excellent survival. The design of this stem was recently modified, resulting in the introduction of a shorter, modular version (CLS Brevius). The purpose of the current study was to evaluate the functional, radiological and survivorship outcomes of the cementless CLS Brevius Stem in a multi-surgeon, single center, consecutive series study at two years post-surgery. METHODS: the Authors performed 170 total hip arthroplasties in 155 patients using the shorter, triple-taper stem design (CLS Brevius)...
July 2016: Joints
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