keyword
MENU ▼
Read by QxMD icon Read
search

Magnetic imaging

keyword
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/28647635/new-vein-compression-entities-in-patients-with-unexplained-leg-swelling
#5
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
#6
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
#7
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
#8
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/28647539/chemical-addressability-of-potato-virus-x-for-its-applications-in-bio-nanotechnology
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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/28647040/synthesis-of-some-transition-metal-m-25mn-27co-28ni-29cu-30zn-47ag-48cd-sulfide-nanostructures-by-hydrothermal-method
#18
REVIEW
Hamid Emadi, Masoud Salavati-Niasari, Azam Sobhani
The design of nanostructures with favored shape, particle size and structure is one of the most important fields of nanoscience. To reach this target hydrothermal method is one of the most applicable methods which allow us to obtain favored structures by changing some parameters. This review focuses on synthesis of some transition metal sulfides by hydrothermal method because of technological importance of this group of material. The common sulfides of Mn, Co, Ni, Cu, Zn, Ag and Cd are introduced and a mechanism proposed for their synthesis...
June 16, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28647022/reprint-of-noise-contributions-to-the-fmri-signal-an-overview
#19
Thomas T Liu
The ability to discriminate signal from noise plays a key role in the analysis and interpretation of functional magnetic resonance imaging (fMRI) measures of brain activity. Over the past two decades, a number of major sources of noise have been identified, including system-related instabilities, subject motion, and physiological fluctuations. This article reviews the characteristics of the various noise sources as well as the mechanisms through which they affect the fMRI signal. Approaches for distinguishing signal from noise and the associated challenges are also reviewed...
July 1, 2017: NeuroImage
https://www.readbyqxmd.com/read/28647021/reprint-of-minimizing-noise-in-pediatric-task-based-functional-mri-adolescents-with-developmental-disabilities-and-typical-development
#20
Catherine Fassbender, Prerona Mukherjee, Julie B Schweitzer
Functional Magnetic Resonance Imaging (fMRI) represents a powerful tool with which to examine brain functioning and development in typically developing pediatric groups as well as children and adolescents with clinical disorders. However, fMRI data can be highly susceptible to misinterpretation due to the effects of excessive levels of noise, often related to head motion. Imaging children, especially with developmental disorders, requires extra considerations related to hyperactivity, anxiety and the ability to perform and maintain attention to the fMRI paradigm...
July 1, 2017: NeuroImage
keyword
keyword
66944
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"