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https://www.readbyqxmd.com/read/28068970/quadriplegia-caused-by-an-epidural-abscess-occurring-at-the-same-level-of-cervical-destructive-spondyloarthropathy-a-case-report
#1
Jun-Seok Lee, Ji-Hyun Ryu, Jong-Tae Park, Ki-Won Kim
BACKGROUND: Destructive spondyloarthropathy (DSA) is one of the major complications in patients undergoing long-term hemodialysis. To the best of our knowledge, an epidural abscess occurring at the level of preexisting cervical DSA has not been well described in the literature. We report a unique case of quadriplegia caused by an epidural abscess occurring at the same level of preexisting cervical DSA. CASE PRESENTATION: A 49-year-old woman was transferred to our emergency department with 5 days of sepsis, drowsy mental status, and quadriplegia below the C5 level...
January 10, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28068570/treatment-of-actual-effluents-produced-in-the-manufacturing-of-atrazine-by-a-photo-electrolytic-process
#2
José M Aquino, Douglas W Miwa, Manuel A Rodrigo, Artur J Motheo
The photo-assisted electrochemical degradation of a real effluent of the atrazine manufacturing process containing atrazine, simazine, hydroxy-triazine and propazine was carried out galvanostatically using a pilot-scale tubular flow reactor prototype containing DSA(®) and Ti as cathode. The effluent was mainly characterized by a high amount of NaCl, required in the synthesis route used, and it was used as taken in the factory. The variables for process optimization were the current density (3.0, 6.0, and 9...
January 2, 2017: Chemosphere
https://www.readbyqxmd.com/read/28068100/directed-self-assembly-of-polystyrene-b-poly-propylene-carbonate-on-chemical-patterns-via-thermal-annealing-for-next-generation-lithography
#3
Guan-Wen Yang, Guang-Peng Wu, Xuanxuan Chen, Shisheng Xiong, Christopher G Arges, Shengxiang Ji, Paul F Nealey, Xiao-Bing Lu, Donald J Darensbourg, Zhi-Kang Xu
Directed self-assembly (DSA) of block copolymers (BCPs) combines advantages of conventional photolithography and polymeric materials and shows competence in semiconductors and data storage applications. Driven by the more integrated, much smaller and higher performance of the electronics, however, the industry standard polystyrene-block-poly(methyl methacrylate) (PS-b-PMMA) in DSA strategy cannot meet the rapid development of lithography technology because its intrinsic limited Flory-Huggins interaction parameter (χ)...
January 9, 2017: Nano Letters
https://www.readbyqxmd.com/read/28065219/uterine-artery-embolization-for-management-of-primary-postpartum-hemorrhage-associated-with-placenta-accreta
#4
Wang Zhi-Wei, Li Xiao-Guang, Pan Jie, Zhang Xiao-Bo, Shi Hai-Feng, Yang Ning, Jin Zheng-Yu
Objective To evaluate the efficacy and safety of uterine artery embolization (UAE) in the management of primary postpartum hemorrhage associated with placenta accreta. Methods We retrospectively reviewed the medical records of patients with placenta accreta between January 2010 and August 2014. Totally 18 women (mean age 30.8±4.2 years) of primary massive postpartum hemorrhage with diagnosis of placenta accrete received treatment of UAE after delivery. Images of DSA and medical records were reviewed. Technical success was defined as control of bleeding after embolization...
November 20, 2016: Chinese Medical Sciences Journal, Chung-kuo i Hsüeh K'o Hsüeh Tsa Chih
https://www.readbyqxmd.com/read/28064304/evaluation-of-ophthalmic-artery-branch-retrograde-intervention-in-the-treatment-of-central-retinal-artery-occlusion-crao
#5
Runsheng Wang, Lu Qian, Yi Wang, Yi Zheng, Shanshuang Du, Tao Lei, Peilin Lv, Tan Long, Wenjun Wang
BACKGROUND Central retinal artery occlusion (CRAO) is the occlusion of the central retinal artery resulting in retinal infarction and acute vision loss. Digital subtraction angiography (DSA)-guided superselective ophthalmic artery or selective carotid thrombolysis remains the preferred treatment method for CRAO. This study aimed to evaluate the safety and clinical efficacy of the novel ophthalmic artery branch retrograde thrombolytic intervention for CRAO. MATERIAL AND METHODS Fifty patients with monocular CRAO were enrolled, including 28 males and 22 females (mean age: 55...
January 8, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28060025/antibody-mediated-rejection-what-is-the-clinical-relevance
#6
Rachel Hogen, Joseph DiNorcia, Kiran Dhanireddy
PURPOSE OF REVIEW: The review outlines the diagnosis, clinical implications, and treatment strategies for acute and chronic antibody-mediated rejection (AMR) after orthotopic liver transplantation (OLT). RECENT FINDINGS: A combination of clinical work-up, histopathology, C4d staining, and donor-specific antibody (DSA) should be used to diagnose AMR. The differential diagnosis for idiopathic fibrosis now includes chronic AMR. Characterization of pathogenic DSA continues to progress...
January 3, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28059105/a-pilot-scale-benthic-microbial-electrochemical-system-bmes-for-enhanced-organic-removal-in-sediment-restoration
#7
Henan Li, Yan Tian, Youpeng Qu, Ye Qiu, Jia Liu, Yujie Feng
A benthic microbial electrochemical systems (BMES) of 195 L (120 cm long, 25 cm wide and 65 cm height) was constructed for sediment organic removal. Sediment from a natural river (Ashi River) was used as test sediments in the present research. Three-dimensional anode (Tri-DSA) with honeycomb structure composed of carbon cloth and supporting skeleton was employed in this research for the first time. The results demonstrated that BMES performed good in organic-matter degradation and energy generation from sediment and could be considered for river sediments in situ restoration as novel method...
January 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28058223/acute-antibody-mediated-rejection-after-intestinal-transplantation
#8
Guo-Sheng Wu, Ruy J Cruz, Jun-Chao Cai
AIM: To investigate the incidence, risk factors and clinical outcomes of acute antibody-mediated rejection (ABMR) after intestinal transplantation (ITx). METHODS: A retrospective single-center analysis was performed to identify cases of acute ABMR after ITx, based on the presence of donor-specific antibody (DSA), acute tissue damage, C4d deposition, and allograft dysfunction. RESULTS: Acute ABMR was identified in 18 (10.3%) out of 175 intestinal allografts with an average occurrence of 10 d (range, 4-162) after ITx...
December 24, 2016: World Journal of Transplantation
https://www.readbyqxmd.com/read/28058219/impact-of-preformed-donor-specific-antibodies-against-hla-class-i-on-kidney-graft-outcomes-comparative-analysis-of-exclusively-anti-cw-vs-anti-a-and-or-b-antibodies
#9
Sofia Santos, Jorge Malheiro, Sandra Tafulo, Leonídio Dias, Rute Carmo, Susana Sampaio, Marta Costa, Andreia Campos, Sofia Pedroso, Manuela Almeida, La Salete Martins, Castro Henriques, António Cabrita
AIM: To analyze the clinical impact of preformed antiHLA-Cw vs antiHLA-A and/or -B donor-specific antibodies (DSA) in kidney transplantation. METHODS: Retrospective study, comparing 12 patients transplanted with DSA exclusively antiHLA-Cw with 23 patients with preformed DSA antiHLA-A and/or B. RESULTS: One year after transplantation there were no differences in terms of acute rejection between the two groups (3 and 6 cases, respectively in the DSA-Cw and the DSA-A-B groups; P = 1)...
December 24, 2016: World Journal of Transplantation
https://www.readbyqxmd.com/read/28057712/embolization-of-blood-supply-artery-followed-by-surgery-for-treatment-of-mesorectal-castleman-s-disease-case-report-and-literature-review
#10
Guanyu Yu, Fuao Cao, Haifeng Gong, Peng Liu, Ge Sun, Wei Zhang
A 23-year-old male patient was diagnosed as having a hypervascular pelvic mass by ultrasonography and magnetic resonance examination. A pathology puncture showed vitreous vascular Castleman's disease. Because of concerns about tumor blood supply, embolization under digital subtraction angiography (DSA) was performed on the artery of the pelvic tumor before resection of the mass and surrounding rectum. Castleman's disease of pelvic lymph node (mixed type, mainly hyaline vascular type) was confirmed pathologically from postoperative biopsy...
January 5, 2017: Gastroenterology Report
https://www.readbyqxmd.com/read/28048545/we-de-207a-04-advances-in-radiological-neuro-endovascular-interventional-imaging
#11
S Rudin
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048454/we-de-207a-00-advances-in-image-guided-neurointerventions-clinical-pull-and-technology-push
#12
Jeffrey Siewerdsen, Rebecca Fahrig
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047932/tu-h-campus-iep3-02-neurovascular-4d-parametric-imaging-using-co-registration-of-biplane-dsa-sequences-with-3d-vascular-geometry-obtained-from-cone-beam-ct
#13
A Balasubramoniam, D Bednarek, S Rudin, C Ionita
PURPOSE: To create 4D parametric images using biplane Digital Subtraction Angiography (DSA) sequences co-registered with the 3D vascular geometry obtained from Cone Beam-CT (CBCT). METHODS: We investigated a method to derive multiple 4D Parametric Imaging (PI) maps using only one CBCT acquisition. During this procedure a 3D-DSA geometry is stored and used subsequently for all 4D images. Each time a biplane DSA is acquired, we calculate 2D parametric maps of Bolus Arrival Time (BAT), Mean Transit Time (MTT) and Time to Peak (TTP)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047800/we-de-207a-01-parallels-in-the-evolution-of-x-ray-angiographic-systems-and-devices-used-for-minimally-invasive-endovascular-therapy
#14
C Strother
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047410/tu-ab-brc-01-spherical-harmonic-based-finite-element-method-shfem-a-new-angular-discretization-of-linear-boltzmann-transport-equation-for-accurate-dose-calculation
#15
X Hong, G Chen, H Gao
PURPOSE: As a deterministic method for dose calculation, the linear Boltzmann transport equation (LBTE) can reach the same accuracy as the Monte Carlo method (MC). In terms of speed, LBTE can be significantly accelerated through various state-of-art numerical techniques. The angular discretization is crucial since the accuracy of LBTE highly depends on it and the computational time of LBTE is quadratic with respect to number of discretized angles. This work proposes a new angular discretization scheme that synergizes spherical harmonics method and finite element method...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047269/tu-h-campus-iep1-04-combined-organ-dose-for-digital-subtraction-angiography-and-computed-tomography-using-monte-carlo-simulation
#16
D Sakabe, T Ohno, F Araki, M Hashida, Y Funama
PURPOSE: The purpose of this study was to evaluate the combined organ dose of digital subtraction angiography (DSA) and computed tomography (CT) using a Monte Carlo (MC) simulation on the abdominal intervention. METHODS: The organ doses for DSA and CT were obtained with MC simulation and actual measurements using fluorescent-glass dosimeters at 7 abdominal portions in an Alderson-Rando phantom. DSA was performed from three directions: posterior anterior (PA), right anterior oblique (RAO), and left anterior oblique (LAO)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047144/we-de-207a-02-advances-in-cone-beam-ct-anatomical-and-functional-imaging-in-angio-suite-to-enable-one-stop-shop-stroke-imaging-workflow
#17
G Chen
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046482/we-de-207a-03-recent-advances-in-devices-used-in-neuro-interventions
#18
M Gounis
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28027828/prognosis-and-adjacent-segment-disease-after-lumbar-spinal-fusion-surgery-for-destructive-spondyloarthropathy-in-long-term-hemodialysis-patients
#19
Keishi Maruo, Tokuhide Moriyama, Toshiya Tachibana, Shinichi Inoue, Fumihiro Arizumi, Kazuki Kusuyama, Shinichi Yoshiya
BACKGROUND: Lumbar destructive spondyloarthropathy (DSA) is a serious complication in long-term hemodialysis patients. There have not been many reports regarding the surgical management for lumbar DSA. In addition, the adjacent segment pathology after lumbar fusion surgery for DSA is unclear. The objective of this study was to assess the clinical outcome and occurrence of adjacent segmental disease (ASD) after lumbar instrumented fusion surgery for DSA in long-term hemodialysis patients...
December 24, 2016: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28027761/radiation-dose-reduction-during-transjugular-intrahepatic-portosystemic-shunt-implantation-using-a-new-imaging-technology
#20
C Spink, M Avanesov, T Schmidt, M Grass, G Schoen, G Adam, P Bannas, A Koops
OBJECTIVE: To compare patient radiation dose in patients undergoing transjugular intrahepatic portosystemic shunt (TIPS) implantation before and after an imaging-processing technology upgrade. METHODS: In our retrospective single-center-study, cumulative air kerma (AK), cumulative dose area product (DAP), total fluoroscopy time and contrast agent were collected from an age- and BMI-matched collective of 108 patients undergoing TIPS implantation. 54 procedures were performed before and 54 after the technology upgrade...
January 2017: European Journal of Radiology
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