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https://www.readbyqxmd.com/read/28647902/ultrasonography-assessment-of-heel-entheses-in-patients-with-spondyloarthritis-a-comparative-study-with-magnetic-resonance-imaging-and-conventional-radiography
#1
Rodrigo Aguila Maldonado, Santiago Ruta, María Laura Valuntas, Mercedes García
The aim of the present study was to determine the agreement between ultrasonography (US), magnetic resonance imaging (MRI), and conventional radiography (CR) in the detection of findings indicative of enthesopathy in spondyloarthritis (SpA) patients. A cross-sectional study was performed in 40 SpA patients. Heel entheses (Achilles tendon and plantar fascia) were bilaterally examined by US, MRI, and CR. The three imaging modalities were carried out by three independent operators blinded to the other imaging modality data...
June 25, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28647842/excellent-healing-rates-and-patient-satisfaction-after-arthroscopic-repair-of-medium-to-large-rotator-cuff-tears-with-a-single-row-technique-augmented-with-bone-marrow-vents
#2
Brian D Dierckman, Jake J Ni, Ronald P Karzel, Mark H Getelman
PURPOSE: This study evaluated the repair integrity and patient clinical outcomes following arthroscopic rotator cuff repair of medium to large rotator cuff tears using a single-row technique consisting of medially based, triple-loaded anchors augmented with bone marrow vents in the rotator cuff footprint lateral to the repair. METHODS: This is a retrospective study of 52 patients (53 shoulders) comprising 36 males and 16 females with a median age of 62 (range 44-82) with more than 24-month follow-up, tears between 2 and 4 cm in the anterior-posterior dimension and utilizing triple-loaded anchors...
June 24, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28647831/alterations-in-regional-homogeneity-of-resting-state-brain-activity-in-fatigue-of-parkinson-s-disease
#3
Junyi Li, Yongsheng Yuan, Min Wang, Jiejin Zhang, Li Zhang, Siming Jiang, Jian Ding, Kezhong Zhang
Fatigue is a common complaint in patients with Parkinson's disease (PD). However, the neural bases of fatigue in PD remain uncertain. In this cross-sectional study, our aim was to study the change of the local brain function in PD patients with fatigue. Among 49 patients with PD, 17 of them had fatigue and the remaining 32 patients without fatigue, and 25 age- and gender-matched healthy controls were enrolled. All subjects were evaluated with Fatigue Severity Scale (FSS) and had a resting-state functional magnetic resonance imaging (rs-fMRI) scan...
June 24, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28647792/regeneration-of-hyaline-cartilage-promoted-by-xenogeneic-mesenchymal-stromal-cells-embedded-within-elastin-like-recombinamer-based-bioactive-hydrogels
#4
David Pescador, Arturo Ibáñez-Fonseca, Fermín Sánchez-Guijo, Jesús G Briñón, Francisco Javier Arias, Sandra Muntión, Cristina Hernández, Alessandra Girotti, Matilde Alonso, María Consuelo Del Cañizo, José Carlos Rodríguez-Cabello, Juan Francisco Blanco
Over the last decades, novel therapeutic tools for osteochondral regeneration have arisen from the combination of mesenchymal stromal cells (MSCs) and highly specialized smart biomaterials, such as hydrogel-forming elastin-like recombinamers (ELRs), which could serve as cell-carriers. Herein, we evaluate the delivery of xenogeneic human MSCs (hMSCs) within an injectable ELR-based hydrogel carrier for osteochondral regeneration in rabbits. First, a critical-size osteochondral defect was created in the femora of the animals and subsequently filled with the ELR-based hydrogel alone or with embedded hMSCs...
August 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28647717/a-large-choledochocystolithiasis-mimicking-mirizzi-syndrome
#5
Mustafa Belal Hafeez Chaudhry, Muhammad Azeemuddin, Muhammad Rizwan Khan, Om Parkash
An 18-year-old man presented with spontaneous severe epigastric pain, progressing and radiating to back since 3 days. It was associated with epigastric tenderness, bilious vomiting and jaundice. He had been intermittently experiencing these symptoms for the last 1 year. No known comorbid. Ultrasound showed a poorly visualised heterogeneous focus at porta hepatis; considering poor visualisation, this might represent an enlarged calcified lymph node or cystic duct calculus causing extrinsic compression or a large sludge ball within the common bile duct (CBD), leading to dilatation of common hepatic duct and intrahepatic biliary system...
June 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28647635/new-vein-compression-entities-in-patients-with-unexplained-leg-swelling
#6
Alaina Garrie, Lauren E Jones, Julia F Chen, Robert W Feldtman, Kenneth R Kollmeyer, Jasmine L Richmond, Craig A Ferrara, Pablo V Uceda, Lelesse Mocio, Samuel S Ahn
BACKGROUND: This retrospective study identifies often overlooked anatomical sites for non-thrombotic venous outflow obstruction (NTVO) in patients with unexplained lower extremity edema and pain. MATERIALS AND METHODS: We retrospectively reviewed the charts of 75 consecutive patients experiencing symptoms of unexplained lower extremity edema with pain that were unexplained by ultrasound, computed tomography angiography (CTA), and magnetic resonance imaging (MRI), who subsequently underwent venography in an outpatient medical office from 2010 to 2014...
June 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28647628/nontraumatic-proximal-ulnar-artery-pseudoaneurysm-mimicking-a-soft-tissue-tumor-in-image-modality
#7
Hiromu Kehara, Yuko Wada, Daisuke Fukui, Kunihiko Shingu, Tatsuichiro Seto, Kenji Okada
Aneurysm of the proximal ulnar artery is extremely rare. Ultrasonography, computed tomography and magnetic resonance imaging generally provide accurate diagnosis of aneurysm. A 29 year-old woman who had undergone an excision biopsy of a mass in her right arm by an orthopedic surgeon was referred to our department. We resected the mass and interposed it with a reversed great saphenous vein. Histopathological examination suggested that the mass was a pseudoaneurysm consisting of organized thrombi with recanalization...
June 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28647623/proximal-femoral-osteosarcoma-diagnostic-challenges-translate-into-delayed-and-inappropriate-management
#8
M Dahan, P Anract, A Babinet, F Larousserie, D Biau
BACKGROUND: The proximal femuris an uncommon site of osteosarcoma. The unusual manifestations at this site may lead to diagnostic and therapeutic mistakes. We therefore performed a retrospective studyto estimate the proportions of patients with imaging study findings and/or clinical manifestations typical for osteosarcoma and/or inappropriate treatment decisions. HYPOTHESIS: Proximal femoral osteosarcoma often produces atypical clinical and radiological presentations...
June 21, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28647574/a-rare-uterine-malformation-asymmetric-septate-uterus
#9
Alper Biler, Ali Akdemir, Nuri Peker, Fatih Sendag
STUDY OBJECTIVE: To demonstrate a step by step surgical hysteroscopy technique in a patient with asymmetric uterine septum and transverse uterine septum that was not previously described in the literature. DESIGN: Resection of a asymmetric uterine septum by laparoscopy and ultrasound-guided hysteroscopy (Canadian Task Force Classification III). The video was assumed exempt from official review by our institutional review board. SETTING: A septate uterus is defined as the uterus in which the uterine cavity is longitudinally divided by the septum (1)...
June 21, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28647540/reversible-swelling-of-sbmv-is-associated-with-reversible-disordering
#10
Jade Li, Carl Fricks, Donald L D Caspar, Ivan Rayment
The structures of the compact and swollen southern bean mosaic virus (SBMV) particles have been compared by X-ray diffraction and proton magnetic resonance (PMR). Small-angle X-ray scattering showed that removal of divalent cations at alkaline pH causes the particle diameter to increase from 289Å in the native SBMV by 12% in solution and by 9% in microcrystals. The swelling is fully reversible upon re-addition of Ca(2+)and Mg(2+) ions, as shown by the X-ray patterns at 6 Å resolution and by the 270 MHz PMR spectra...
June 21, 2017: Journal of Structural Biology
https://www.readbyqxmd.com/read/28647539/chemical-addressability-of-potato-virus-x-for-its-applications-in-bio-nanotechnology
#11
Duc H T Le, He Hu, Ulrich Commandeur, Nicole F Steinmetz
Potato virus X (PVX), a type member of the plant virus potexvirus group, offers a unique nanotechnology platform based on its high aspect ratio, flexible filamentous shape. The PVX platform has already been engineered and studied for its uses in imaging, drug delivery, and immunotherapies. While genetic engineering procedures are well established for PVX, there is limited information about chemical conjugation strategies for functionalizing PVX, partly due to the lack of structural information of PVX at high resolution...
June 21, 2017: Journal of Structural Biology
https://www.readbyqxmd.com/read/28647522/functional-medium-term-results-after-autologous-matrix-induced-chondrogenesis-for-osteochondral-lesions-of-the-talus-a-5-year-prospective-cohort-study
#12
Oliver Gottschalk, Sebastian Altenberger, Sebastian Baumbach, Stefanie Kriegelstein, Florian Dreyer, Alexander Mehlhorn, Hubert Hörterer, Andreas Töpfer, Anke Röser, Markus Walther
Autologous matrix-induced chondrogenesis (AMIC) has gained popularity in the treatment of osteochondral lesions of the talus. Previous studies have presented promising short-term results for AMIC talar osteochondral lesion repair, a 1-step technique using a collagen type I/III bilayer matrix. The aim of the present study was to investigate the mid-term effects. The 5-year results of a prospective cohort study are presented. All patients underwent an open AMIC procedure for a talar osteochondral lesion. Data analysis included general demographic data, preoperative magnetic resonance imaging findings, intraoperative details, and German version of the Foot Function Index (FFI-D) scores preoperatively and at 1 and 5 years after surgery...
June 21, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28647484/neural-representation-of-geometry-and-surface-properties-in-object-and-scene-perception
#13
Matthew X Lowe, Jason Rajsic, Jason P Gallivan, Susanne Ferber, Jonathan S Cant
Multiple cortical regions are crucial for perceiving the visual world, yet the processes shaping representations in these regions are unclear. To address this issue, we must elucidate how perceptual features shape representations of the environment. Here, we explore how the weighting of different visual features affects neural representations of objects and scenes, focusing on the scene-selective parahippocampal place area (PPA), but additionally including the retrosplenial complex (RSC), occipital place area (OPA), lateral occipital (LO) area, fusiform face area (FFA) and occipital face area (OFA)...
June 21, 2017: NeuroImage
https://www.readbyqxmd.com/read/28647430/determining-the-relevant-criteria-for-three-dimensional-vocal-tract-characterization
#14
Rebecca R Vos, Damian T Murphy, David M Howard, Helena Daffern
OBJECTIVE: Soprano singers face a number of specific challenges when singing vowels at high frequencies, due to the wide spacing of harmonics in the voice source. The varied and complex techniques used to overcome these are still not fully understood. Magnetic resonance imaging (MRI) has become increasingly popular in recent years for singing voice analysis. This study proposes a new protocol using three-dimensional MRI to investigate the articulatory parameters relevant to resonance tuning, a technique whereby singers alter their vocal tract to shift its resonances nearer to a voice source harmonic, increasing the amplitude of the sound produced...
June 21, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28647417/recurrent-thromboembolic-events-after-ischemic-stroke-in-patients-with-primary-brain-tumors
#15
Neal S Parikh, Jaclyn E Burch, Hooman Kamel, Lisa M DeAngelis, Babak B Navi
BACKGROUND: Stroke mechanisms and the risk of recurrent thromboembolism are incompletely understood in patients with primary brain tumors. We sought to better delineate these important clinical features. METHODS: We performed a retrospective cohort study of adults with primary brain tumors diagnosed with magnetic resonance imaging-confirmed acute ischemic stroke at the Memorial Sloan Kettering Cancer Center from 2005 to 2015. Study neurologists collected data on patients' cancer history, stroke risk factors, treatments, and outcomes...
June 21, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28647416/related-factors-of-asymmetrical-vein-sign-in-acute-middle-cerebral-artery-stroke-and-correlation-with-clinical-outcome
#16
Jinchao Yu, Liming Wang, Zhenzhi Li, Shanshan Wang, Guangbin Wang
OBJECTIVE: The aim of our study was to analyze the related factors of asymmetrical cortical vein sign (ACVS) and asymmetrical medullary vein sign (AMVS) on susceptibility-weighted imaging (SWI) in patients with acute middle cerebral artery (MCA) stroke and whether their presence can be used as an independent predictor for clinical outcome. METHODS: According to the presence of ACVS and AMVS on SWI, 124 patients with acute MCA stroke within 3 days were divided into several different groups...
June 21, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28647387/practical-considerations-for-the-use-of-breast-mri-for-breast-cancer-evaluation-in-the-preoperative-setting
#17
Debra L Monticciolo
Preoperative contrast-enhanced (CE) breast magnetic resonance imaging (MRI) remains controversial in the newly diagnosed breast cancer patient. Additional lesions are frequently discovered in these patients with CE breast MRI. As staging and treatment planning evolve to include more information on tumor biology and aggression, so should our consideration of extent of disease. Directing CE breast MRI to those patients most likely to have additional disease may be beneficial. We sought to develop practical guidance for the use of preoperative CE breast MRI in the newly diagnosed breast cancer patient based on recent scientific data...
June 21, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28647385/hunger-and-disinhibition-but-not-cognitive-restraint-are-associated-with-central-norepinephrine-transporter-availability
#18
A Bresch, M Rullmann, J Luthardt, G A Becker, M Patt, Y-S Ding, A Hilbert, O Sabri, S Hesse
The relationship between food-intake related behaviours measured by the Three-Factor Eating Questionnaire (TFEQ) and in vivo norepinephrine transporter (NET) availability has not been explored yet. We investigated ten obese individuals (body mass index (BMI) 42.4 ± 3.7 kg/m(2)) and ten normal-weight healthy controls (HC, BMI 23.9 ± 2.5 kg/m(2)) with (S,S)-[(11)C]-O-methylreboxetine ([(11)C]MRB) positron emission tomography (PET). All participants completed the TFEQ, which measures cognitive restraint, disinhibition and hunger...
June 21, 2017: Appetite
https://www.readbyqxmd.com/read/28647216/characteristics-of-prostate-cancer-found-at-fifth-screening-in-the-european-randomized-study-of-screening-for-prostate-cancer-rotterdam-can-we-selectively-detect-high-grade-prostate-cancer-with-upfront-multivariable-risk-stratification-and-magnetic-resonance
#19
Arnout R Alberts, Ivo G Schoots, Leonard P Bokhorst, Frank-Jan H Drost, Geert J van Leenders, Gabriel P Krestin, Roy S Dwarkasing, Jelle O Barentsz, Fritz H Schröder, Chris H Bangma, Monique J Roobol
BACKGROUND: The harm of screening (unnecessary biopsies and overdiagnosis) generally outweighs the benefit of reducing prostate cancer (PCa) mortality in men aged ≥70 yr. Patient selection for biopsy using risk stratification and magnetic resonance imaging (MRI) may improve this benefit-to-harm ratio. OBJECTIVE: To assess the potential of a risk-based strategy including MRI to selectively identify men aged ≥70 yr with high-grade PCa. DESIGN, SETTING, AND PARTICIPANTS: Three hundred and thirty-seven men with prostate-specific antigen ≥3...
June 21, 2017: European Urology
https://www.readbyqxmd.com/read/28647149/argentation-gas-chromatography-revisited-separation-of-light-olefin-paraffin-mixtures-using-silver-based-ionic-liquid-stationary-phases
#20
He Nan, Cheng Zhang, Amrit Venkatesh, Aaron J Rossini, Jared L Anderson
Silver ion or argentation chromatography utilizes stationary phases containing silver ions for the separation of unsaturated compounds. In this study, a mixed-ligand silver-based ionic liquid (IL) was evaluated for the first time as a gas chromatographic (GC) stationary phase for the separation of light olefin/paraffin mixtures. The selectivity of the stationary phase toward olefins can be tuned by adjusting the ratio of silver ion and the mixed ligands. The maximum allowable operating temperature of these stationary phases was determined to be between 125°C and 150°C...
June 12, 2017: Journal of Chromatography. A
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