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https://www.readbyqxmd.com/read/27914348/favorable-minimal-invasive-surgery-in-the-treatment-of-superior-mesenteric-artery-syndrome-case-report
#1
Leandro Cardoso Barchi, Aline Marcílio Alves, Carlos Eduardo Jacob, Claudio José Caldas Bresciani, Osmar Kenji Yagi, Tarsila Gasparotto Nogueira, Ivan Cecconello, Bruno Zilberstein
INTRODUCTION: The Superior Mesenteric Artery Syndrome (SMAS) is a rare form of intestinal obstruction. The diagnosis is based on findings from imaging studies, including vascular compression of the duodenum by the SMA and can be associated with duodenal dilatation. PRESENTATION OF CASE: We report a case of a patient with SMAS and recurrent episodes of intestinal obstruction, which was successfully treated by laparoscopic duodenojejunostomy. DISCUSSION: The initial treatment is usually conservative for patient's clinical improvement...
October 26, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27910465/accelerated-reconstruction-of-electrical-impedance-tomography-images-via-patch-based-sparse-representation
#2
Qi Wang, Zhijie Lian, Jianming Wang, Qingliang Chen, Yukuan Sun, Xiuyan Li, Xiaojie Duan, Ziqiang Cui, Huaxiang Wang
Electrical impedance tomography (EIT) reconstruction is a nonlinear and ill-posed problem. Exact reconstruction of an EIT image inverts a high dimensional mathematical model to calculate the conductivity field, which causes significant problems regarding that the computational complexity will reduce the achievable frame rate, which is considered as a major advantage of EIT imaging. The single-step method, state estimation method, and projection method were always used to accelerate reconstruction process. The basic principle of these methods is to reduce computational complexity...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27908074/shallow-water-acoustic-channel-estimation-using-two-dimensional-frequency-characterization
#3
Naushad Ansari, Anubha Gupta, Ananya Sen Gupta
Shallow water acoustic channel estimation techniques are presented at the intersection of time, frequency, and sparsity. Specifically, a mathematical framework is introduced that translates the problem of channel estimation to non-uniform sparse channel recovery in two-dimensional frequency domain. This representation facilitates disambiguation of slowly varying channel components against high-energy transients, which occupy different frequency ranges and also exhibit significantly different sparsity along their local distribution...
November 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27906279/adaptive-multifocus-image-fusion-using-block-compressed-sensing-with-smoothed-projected-landweber-integration-in-the-wavelet-domain
#4
Unni V S, Deepak Mishra, G R K S Subrahmanyam
The need for image fusion in current image processing systems is increasing mainly due to the increased number and variety of image acquisition techniques. Image fusion is the process of combining substantial information from several sensors using mathematical techniques in order to create a single composite image that will be more comprehensive and thus more useful for a human operator or other computer vision tasks. This paper presents a new approach to multifocus image fusion based on sparse signal representation...
December 1, 2016: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/27904800/cervical-contribution-to-functional-shoulder-impingement-two-case-reports
#5
Steven Pheasant
BACKGROUND: Subacromial impingement is a common condition among overhead athletes. The cause of subacromial impingement can be multifactorial and often involves impaired rotator cuff function. CASE DESCRIPTION: The following cases outline the presentation, examination and intervention of two overhead athletes, a high school football quarterback and a collegiate swimmer, each presenting with signs and symptoms of subacromial impingement. The unique feature in each case was the manifestation of the cervical spine as the apparent source of rotator cuff weakness, which contributed to functional subacromial impingement although other overt signs of cervical or associated nerve root involvement were absent...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27904716/is-anterior-bridge-plating-for-mid-shaft-humeral-fractures-a-suitable-option-for-patients-predominantly-involved-in-overhead-activities-a-functional-outcome-study-in-athletes-and-manual-laborers
#6
Abhishek S Mahajan, Young Gun Kim, Jae Hwa Kim, Prashanth D'sa, Azhar Lakhani, Hyun Soo Ok
BACKGROUND: To assess the functional and radiological outcomes of minimally invasive anterior bridge plating (ABP) for mid-shaft humerus fractures in patients predominantly involved in overhead activities (athletes and manual laborers). METHODS: Forty-eight patients fulfilling inclusion criteria were treated with ABP at a level-I trauma center using a 4.5-mm dynamic/locking compression plate and followed for a period of 1 year. Functional outcome was assessed using the Constant, Mayo elbow, and Disabilities of the Arm, Shoulder and Hand (DASH) scores...
December 2016: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/27902591/a-novel-indication-for-a-method-in-the-treatment-of-lumbar-tuberculosis-through-minimally-invasive-extreme-lateral-interbody-fusion-xlif-in-combination-with-percutaneous-pedicle-screws-fixation-in-an-elderly-patient-a-case-report
#7
Qiyou Wang, Yichun Xu, Ruiqiang Chen, Jianwen Dong, Bin Liu, Limin Rong
RATIONALE: To describe a novel indication for a method through minimally invasive extreme lateral interbody fusion (XLIF) in combination with percutaneous pedicle screwsfixation in the treatment of lumbar tuberculosis (TB) in an elderly patient, and its clinical efficacy and feasibility. Lumbar TB is a destructive form of TB. Antituberculous treatment should be started as early as possible. In some circumstances, however, surgical debridement with or without stabilization of the spine appears to be beneficial and may be recommended...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27893381/a-compressed-sensing-based-decomposition-of-electrodermal-activity-signals
#8
Swayambhoo Jain, Urvashi Oswal, Kevin Xu, Brian Eriksson, Jarvis Haupt
The measurement and analysis of Electrodermal Activity (EDA) offers applications in diverse areas ranging from market research, to seizure detection, to human stress analysis. Unfortunately, the analysis of EDA signals is made difficult by the superposition of numerous components which can obscure the signal information related to a user's response to a stimulus. We show how simple pre-processing followed by a novel compressed sensing based decomposition can mitigate the effects of the undesired noise components and help reveal the underlying physiological signal...
November 23, 2016: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/27890156/physiological-and-perceptual-effects-of-a-cooling-garment-during-simulated-industrial-work-in-the-heat
#9
Cory L Butts, Cody R Smith, Matthew S Ganio, Brendon P McDermott
OBJECTIVE: Evaluate physiological and perceptual responses using a phase change cooling (PCC) garment during simulated work in the heat. METHODS: Twenty males wearing compression undergarments, coverall suit, gloves, and hard-hat, completed two randomly assigned trials (with PCC inserts or control, CON) of simulated industrial tasks in the heat (34.2 ± 0.05 °C, 54.7 ± 0.3%RH). Trials consisted of two 20 min work bouts, a maximum performance bout, and 10 min of recovery...
March 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/27889959/fumaric-acid-esters-attenuate-secondary-degeneration-following-spinal-cord-injury
#10
Marika Cordaro, Giovanna Casili, Irene Paterniti, Salvatore Cuzzocrea, Emanuela Esposito
Spinal cord injury (SCI) causes permanent changes in motor, sensory and autonomic functions. Unfortunately, there are not a stable cures and current treatments include surgical decompression, methylprednisolone and hemodynamic control that lead to modest function recovery. Fumaric acid esters (FAEs) were firstly used in the management of an immunological skin disorder, such as psoriasis. Because of their potent anti-inflammatory effects, they have been introduced in multiple sclerosis. Investigation shown not only anti-inflammatory, but also supposed neuroprotective mechanism of action...
November 27, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27886558/optimization-of-sparse-phase-encodings-for-variable-repetition-delay-turbo-spin-echo-tse-t1-measurements-for-preclinical-applications
#11
DongKyu Lee, Sohyun Han, HyungJoon Cho
A variable repetition-delay (TR) spin echo sequence with repeated refocusing pulses, i.e., a variable TR turbo-spin echo (TSE), provides an attractive means of acquiring an accurate T1 map information that is free from gradient echo based artifacts such as magnetic field inhomogeneities particularly for ultra-high field (at 7T and above) preclinical applications. However, the applicability of multi-slice TSE sequences is often limited by signal distortion from T2 relaxation due to echo-train acquisitions for short T2 tissues, inter-slice cross talks and magnetization transfer (MT) from repetitive slice-selective 180° pulse, and extended scan times with multiple TR excitations...
November 10, 2016: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/27886243/creating-new-layered-structures-at-high-pressures-sis2
#12
Dušan Plašienka, Roman Martoňák, Erio Tosatti
Old and novel layered structures are attracting increasing attention for their physical, electronic, and frictional properties. SiS2, isoelectronic to SiO2, CO2 and CS2, is a material whose phases known experimentally up to 6 GPa exhibit 1D chain-like, 2D layered and 3D tetrahedral structures. We present highly predictive ab initio calculations combined with evolutionary structure search and molecular dynamics simulations of the structural and electronic evolution of SiS2 up to 100 GPa. A highly stable CdI2-type layered structure, which is octahedrally coordinated with space group surprisingly appears between 4 and up to at least 100 GPa...
November 25, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27879594/comparison-of-ulnar-intrinsic-function-following-supercharge-end-to-side-anterior-interosseous-to-ulnar-motor-nerve-transfer-a-matched-cohort-study-of-proximal-ulnar-nerve-injury-patients
#13
Heather Baltzer, Alice Woo, Christine Oh, Steven L Moran
BACKGROUND: There are few studies supporting supercharge end-to-side nerve transfer for high ulnar nerve injury. The current study hypothesized that patients with a supercharge end-to-side anterior interosseous nerve-to-ulnar motor nerve transfer would demonstrate superior return of intrinsic function compared with conventional treatment only. METHODS: A retrospective matched-cohort study matched supercharge end-to-side transfer patients based on age, level of injury, and mechanism to ulnar nerve injury patients who did not have the transfer...
December 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27871588/novel-resuscitation-devices-facilitate-complete-neurologic-recovery-after-prolonged-cardiac-arrest-in-postanesthesia-care-unit
#14
Elif C Cingi, Luke A McMahon, Richard C Prielipp
Cardiac arrest in the perioperative period is associated with significant morbidity and mortality. Novel resuscitation devices may afford patients improved survival and limit neurologic injury. We report a case of cardiac arrest in the postanesthesia care unit that required an extensive period of cardiopulmonary resuscitation assisted by the ResQPOD impedance threshold device to optimize coronary perfusion and a LUCAS chest compression system to maintain optimal cardiopulmonary resuscitation while transporting the patient to the cardiac catheterization laboratory...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27863133/shape-memory-silk-protein-sponges-for-minimally-invasive-tissue-regeneration
#15
Joseph E Brown, Jodie E Moreau, Alison M Berman, Heather J McSherry, Jeannine M Coburn, Daniel F Schmidt, David L Kaplan
Porous silk protein scaffolds are designed to display shape memory characteristics and volumetric recovery following compression. Two strategies are utilized to realize shape recovery: addition of hygroscopic plasticizers like glycerol, and tyrosine modifications with hydrophilic sulfonic acid chemistries. Silk sponges are evaluated for recovery following 80% compressive strain, total porosity, pore size distribution, secondary structure development, in vivo volume retention, cell infiltration, and inflammatory responses...
November 8, 2016: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/27861327/spinal-laser-interstitial-thermal-therapy-a-novel-alternative-to-surgery-for-metastatic-epidural-spinal-cord-compression
#16
Claudio E Tatsui, Sun-Ho Lee, Behrang Amini, Ganesh Rao, Dima Suki, Marilou Oro, Paul D Brown, Amol J Ghia, Shreyas Bhavsar, Keyuri Popat, Laurence D Rhines, R Jason Stafford, Jing Li
BACKGROUND: Although surgery followed by radiation effectively treats metastatic epidural compression, the ideal surgical approach should enable fast recovery and rapid institution of radiation and systemic therapy directed at the primary tumor. OBJECTIVE: To assess spinal laser interstitial thermotherapy (SLITT) as an alternative to surgery monitored in real time by thermal magnetic resonance (MR) images. METHODS: Patients referred for spinal metastasis without motor deficits underwent MR-guided SLITT, followed by stereotactic radiosurgery...
December 2016: Neurosurgery
https://www.readbyqxmd.com/read/27858382/dorsal-arachnoid-web-and-scalpel-sign-a-diagnostic-imaging-entity
#17
Leonardo Gilmone Ruschel, Guilherme José Agnoletto, Lucas Alves Aurich, Ronaldo Pereira Vosgerau
MATERIAL AND METHODS: A case of 60-year-old woman with idiopathic syringomyelia and progressive myelopathy by dorsal arachnoid web is discussed. One focal indentation along the dorsal surface of the spinal cord at the T3 vertebral body level revealed the scalpel sign, a radiologic entity diagnostic of a dorsal thoracic arachnoid web. RESULTS: T2-T3 laminectomy for the resection of dorsal arachnoid band was performed. Careful sectioning of the web resulted in visual apparent relief of the compression and good functional recovery...
October 14, 2016: Turkish Neurosurgery
https://www.readbyqxmd.com/read/27857921/appropriate-cement-volume-in-vertebroplasty-a-multivariate-analysis-with-short-term-follow-up
#18
Hyun Mook Kwon, Sang Pyung Lee, Jin Wook Baek, Seong Hwan Kim
OBJECTIVE: The optimal threshold of the infusion volume of cement has been a continuous subject in percutaneous vertebroplasty (PVP). This study verifies a causal relationship between the cement volume and the clinical outcome, and suggests the parameters of the appropriate volume of cement in PVP. METHODS: This is a retrospective study. One hundred nine patients, who underwent PVP between 2012 and 2015, were included in the study. Various factors such as patients' fracture levels, fracture types, fracture body volumes, fracture rates, bone mineral densities, and infused cement volumes were analyzed...
October 2016: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/27852621/effect-of-early-supervised-physiotherapy-on-recovery-from-acute-ankle-sprain-randomised-controlled-trial
#19
Robert J Brison, Andrew G Day, Lucie Pelland, William Pickett, Ana P Johnson, Alice Aiken, David R Pichora, Brenda Brouwer
OBJECTIVE:  To assess the efficacy of a programme of supervised physiotherapy on the recovery of simple grade 1 and 2 ankle sprains. DESIGN:  A randomised controlled trial of 503 participants followed for six months. SETTING:  Participants were recruited from two tertiary acute care settings in Kingston, ON, Canada. PARTICIPANTS:  The broad inclusion criteria were patients aged ≥16 presenting for acute medical assessment and treatment of a simple grade 1 or 2 ankle sprain...
November 16, 2016: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/27849534/random-walk-graph-laplacian-based-smoothness-prior-for-soft-decoding-of-jpeg-images
#20
Xianming Liu, Gene Cheung, Xiaolin Wu, Debin Zhao
Given the prevalence of JPEG compressed images, optimizing image reconstruction from the compressed format remains an important problem. Instead of simply reconstructing a pixel block from the centers of indexed DCT coefficient quantization bins (hard decoding), soft decoding reconstructs a block by selecting appropriate coefficient values within the indexed bins with the help of signal priors. The challenge thus lies in how to define suitable priors and apply them effectively. In this paper, we combine three image priors-Laplacian prior for DCT coefficients, sparsity prior and graph-signal smoothness prior for image patches-to construct an efficient JPEG soft decoding algorithm...
November 10, 2016: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
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