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https://www.readbyqxmd.com/read/29236275/multidisciplinary-management-of-a-giant-cervico-mediastinal-liposarcoma-a-case-report-and-literature-review
#1
Andrea Galli, Leone Giordano, Piergiorgio Muriana, Alessandro Bandiera, Giampiero Negri, Piero Zannini, Mario Bussi
Liposarcomas are rare mesenchymal tumors that usually develop in lower extremities or retroperitoneum; cervico-mediastinal presentation is quite uncommon. These neoplasms are commonly diagnosed at a late stage because they remain asymptomatic until nearby structures are compressed. This makes radical excision particularly challenging. To date, alternative chemoradiotherapy protocols have not yet been standardized. We report a case of a 55-year-old man with a right laterocervical mass and without substantial symptoms...
December 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/29236273/prognosticating-hearing-outcome-in-patients-with-idiopathic-sudden-sensorineural-hearing-loss-by-means-of-otoacoustic-emissions-and-auditory-brainstem-response
#2
Masoud Motasaddi Zarandy, Mohammad Taghi Ashtiani, Shahin Bastaninejad, Sasan Dabiri Satri, Sevil Nasirmohtaram, Nourullah Agha Ebrahimi
This is an analytic-descriptive study, parallel with a randomized, controlled trial performed at Amir'Alam Hospital, a tertiary referral center, with the aim of evaluating the correlation between otoacoustic emission (OAE) and auditory brainstem response (ABR) findings with hearing outcome after treatment of idiopathic sudden sensorineural hearing loss (SSNHL). Sixty patients with idiopathic SSNHL who presented to the emergency services and otology clinics between 2012 and 2014, and whose symptoms had begun <10 days previously, enrolled in this study...
December 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/29236181/ultrasound-based-logistic-regression-model-lr2-versus-magnetic-resonance-imaging-for-discriminating-between-benign-and-malignant-adnexal-masses-a-prospective-study
#3
Kanane Shimada, Koji Matsumoto, Takashi Mimura, Tetsuya Ishikawa, Jiro Munechika, Yoshimitsu Ohgiya, Miki Kushima, Yusuke Hirose, Yuka Asami, Chiaki Iitsuka, Shingo Miyamoto, Mamiko Onuki, Hajime Tsunoda, Ryu Matsuoka, Kiyotake Ichizuka, Akihiko Sekizawa
BACKGROUND: The diagnostic performances of the International Ovarian Tumor Analysis (IOTA) ultrasound-based logistic regression model (LR2) and magnetic resonance imaging (MRI) in discriminating between benign and malignant adnexal masses have not been directly compared in a single study. METHODS: Using the IOTA LR2 model and subjective interpretation of MRI findings by experienced radiologists, 265 consecutive patients with adnexal masses were preoperatively evaluated in two hospitals between February 2014 and December 2015...
December 13, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29236171/uterine%C3%A2-fibroid-size-modifications-during-pregnancy-and-puerperium-evidence-from-the-first-systematic-review-of-literature
#4
REVIEW
Amerigo Vitagliano, Marco Noventa, Attilio Di Spiezio Sardo, Gabriele Saccone, Salvatore Gizzo, Shara Borgato, Salvatore Giovannni Vitale, Antonio Simone Laganà, Giovanni Battista Nardelli, Pietro Salvatore Litta, Carlo Saccardi
PURPOSE: The influence of pregnancy on uterine fibroid size still remains an unsolved dilemma. Basing on current knowledge, physicians are not able to inform patients about the likelihood of uterine fibroids to modify their size during pregnancy. Study aim was to summarize available evidence concerning the size modifications of uterine fibroids during each trimester of pregnancy and during puerperium. METHODS: The review was reported following the PRISMA guidelines and registered in PROSPERO (registration number: CRD42017071117)...
December 13, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29236169/current-treatment-of-central-retinal-artery-occlusion-a-national-survey
#5
Teddy S Youn, Patrick Lavin, Morgan Patrylo, Joseph Schindler, Howard Kirshner, David M Greer, Matthew Schrag
BACKGROUND: Central retinal artery occlusion (CRAO) is an ophthalmological emergency, the retinal analog of a stroke. To date there is no consensus or national guidelines on how this disorder should be managed. As academic neurologists and ophthalmologists treat CRAO frequently, we set out to understand how these clinicians approach patients with CRAO with a national survey. METHODS: We identified university-associated teaching hospitals offering vascular neurology, neuro-ophthalmology and/or retina fellowships in the US and asked the directors of the programs to respond to questions in an open response format to profile the acute management of CRAO at their institution...
December 13, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/29236168/clinical-and-magnetic-resonance-imaging-features-of-elderly-onset-dentatorubral-pallidoluysian-atrophy
#6
Atsuhiko Sugiyama, Noriko Sato, Yasuhiro Nakata, Yukio Kimura, Mikako Enokizono, Tomoko Maekawa, Madoka Kondo, Yuji Takahashi, Satoshi Kuwabara, Hiroshi Matsuda
Dentatorubral-pallidoluysian atrophy (DRPLA) is an autosomal dominant spinocerebellar ataxia caused by CAG triplet expansion in atrophin 1 and is frequently associated with cerebral white matter lesions. To elucidate the clinical features of elderly onset DRPLA and the key radiological findings for differentiating DRPLA from physiological white matter lesions in healthy elderly subjects, we reviewed the clinical and magnetic resonance imaging (MRI) features of ten patients with elderly onset genetically confirmed DRPLA (> 60 years) and compared their MRI findings with those of age- and sex-matched ten healthy subjects with asymptomatic cerebral white matter lesions...
December 13, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/29235879/experimental-studies-on-artifacts-and-tumor-enhancement-on-gadoxetic-acid-enhanced-arterial-phase-liver-mri-in-a-rabbit-vx2-tumor-model
#7
Takahiro Tsuboyama, Gregor Jost, Tonsok Kim, Masatoshi Hori, Hiromitsu Onishi, Hubertus Pietsch, Noriyuki Tomiyama
Background Rapid injection of gadoxetic acid is reported to produce more frequent artifacts and lower vascular enhancement on arterial phase liver magnetic resonance imaging (MRI). However, its effect on tumor enhancement and the mechanism of the artifacts remain unclear. Purpose To evaluate the effect of rapid injection of gadoxetic acid on artifacts and tumor enhancement during arterial phase liver MRI, and on arterial blood gases (ABGs) which may explain the cause of the artifacts. Material and Methods ABG analysis was performed in 13 free-breathing rabbits after rapid injection (1 mL/s; injection time = 0...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/29235846/cu-ii-doped-polydopamine-coated-gold-nanorods-for-tumor-theranostics
#8
Shuwei Liu, Lu Wang, Min Lin, Dandan Wang, Ziqi Song, Shuyao Li, Rui Ge, Xue Zhang, Yi Liu, Zhimin Li, Hongchen Sun, Bai Yang, Hao Zhang
Gold nanorods (AuNRs) are potentially useful in tumor theranostics, but the poor stability, high toxicity, and rapid removal by the immune system seriously limit their theranostic applications. In our study, we demonstrate the fabrication of Cu(II)-doped polydopamine-coated AuNR (AuNR@CuPDA), which significantly improves the potentials in tumor theranostics. Besides the improvement of physiological stability and biocompatibility, the PDA shell increases the photothermal performance and prolongs the blood circulation time of AuNRs...
December 13, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29235722/alterations-in-ventricular-pumping-in-patients-with-atrial-septal-defect-at-rest-during-dobutamine-stress-and-after-defect-closure
#9
Sigurdur S Stephensen, Ellen Ostenfeld, Katarina Steding-Ehrenborg, Ulf Thilén, Einar Heiberg, Hakan Arheden, Marcus Carlsson
BACKGROUND: Regional ventricular pumping mechanisms in patients with volume-loaded right ventricles (RV) are altered, but the cause is unknown. The aim was to determine whether these changes in ventricular pumping mechanisms are influenced by the RV dilatation itself or the aetiology behind it. METHODS: Seventeen patients with atrial septal defects (ASD) and 10 healthy controls underwent cardiovascular magnetic resonance (CMR) at rest and during dobutamine/atropine stress...
December 13, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/29235446/optimized-programming-algorithm-for-cylindrical-and-directional-deep-brain-stimulation-electrodes
#10
Daria Nesterovich Anderson, Braxton Osting, Johannes Vorwerk, Alan Chuck Dorval, Christopher R Butson
 Deep brain stimulation (DBS) is a growing treatment option for movement and psychiatric disorders. As DBS technology moves toward directional leads with increased numbers of smaller electrode contacts, trial-and-error methods of manual DBS programming are becoming too time-consuming for clinical feasibility. We propose an algorithm to automate DBS programming in near real-time for a wide range of DBS lead designs. Approach: Magnetic resonance imaging and diffusion tensor imaging are used to build finite element models that include anisotropic conductivity...
December 13, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/29235394/follow-up-magnetic-resonance-imaging-in-spine-infection-details-which-matter-most
#11
Genevieve L McKew, Craig A Buchan, Elizabeth Thompson, Colin Macleod
No abstract text is available yet for this article.
December 13, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/29235194/dual-sensitivity-multiple-sclerosis-lesion-and-csf-segmentation-for-multichannel-3t-brain-mri
#12
Dominik S Meier, Charles R G Guttmann, Subhash Tummala, Nicola Moscufo, Michele Cavallari, Shahamat Tauhid, Rohit Bakshi, Howard L Weiner
BACKGROUND AND PURPOSE: A pipeline for fully automated segmentation of 3T brain MRI scans in multiple sclerosis (MS) is presented. This 3T morphometry (3TM) pipeline provides indicators of MS disease progression from multichannel datasets with high-resolution 3-dimensional T1-weighted, T2-weighted, and fluid-attenuated inversion-recovery (FLAIR) contrast. 3TM segments white (WM) and gray matter (GM) and cerebrospinal fluid (CSF) to assess atrophy and provides WM lesion (WML) volume. METHODS: To address nonuniform distribution of noise/contrast (eg, posterior fossa in 3D-FLAIR) of 3T magnetic resonance imaging, the method employs dual sensitivity (different sensitivities for lesion detection in predefined regions)...
December 13, 2017: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/29235162/iron-chelating-effect-of-silymarin-in-patients-with-%C3%AE-thalassemia-major-a-crossover-randomised-control-trial
#13
Hadi Darvishi-Khezri, Ebrahim Salehifar, Mehrnoush Kosaryan, Hossein Karami, Mohammadreza Mahdavi, Abbas Alipour, Aily Aliasgharian
This study aimed to determine the potential iron-chelating effects of silymarin in patients with β-thalassemia major receiving standard iron-chelation therapy. We evaluated whether addition of silymarin to standard iron-chelation therapy could improve iron burden markers and liver and cardiac function in these patients, via a placebo-controlled, crossover clinical study. Silymarin (140 mg) or placebo were administered thrice daily to all patients (n = 82) for 12 weeks, and after a 2-week washout period, patients were crossed over to the other groups...
December 13, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29235055/a-finite-element-model-to-assess-transtibial-prosthetic-sockets-with-elastomeric-liners
#14
John C Cagle, Per G Reinhall, Kate J Allyn, Jake McLean, Paul Hinrichs, Brian J Hafner, Joan E Sanders
People with transtibial amputation often experience skin breakdown due to the pressures and shear stresses that occur at the limb-socket interface. The purpose of this research was to create a transtibial finite element model (FEM) of a contemporary prosthesis that included complete socket geometry, two frictional interactions (limb-liner and liner-socket), and an elastomeric liner. Magnetic resonance imaging scans from three people with characteristic transtibial limb shapes (i.e., short-conical, long-conical, and cylindrical) were acquired and used to develop the models...
December 13, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29234959/olfactory-cortex-and-olfactory-bulb-volume-alterations-in-patients-with-post-infectious-olfactory-loss
#15
Linyin Yao, Xiaoli Yi, Jayant Marian Pinto, Xiandao Yuan, Yichen Guo, Yifan Liu, Yongxiang Wei
Upper respiratory tract infection (URI) is one of the most common etiology of olfactory loss. Previous studies demonstrated that both olfactory bulb (OB) volume and sulcus (OS) depth decreased in patients with post-infectious olfactory loss (PIOL) compared to normal controls. The aim of our study was to observe alterations of central olfactory pathways in patients with PIOL. T1 weighted magnetic resonance images were acquired in 19 PIOL patients and 19 age- and sex-matched control subjects on a 3 T scanner...
December 13, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/29234850/normal-magnetic-resonance-appearances-of-the-temporomandibular-joints-in-children-and-young-adults-aged-2-18%C3%A2-years
#16
Oskar W Angenete, Thomas A Augdal, Stig Jellestad, Marite Rygg, Karen Rosendahl
BACKGROUND: Knowledge of normal appearances of the temporomandibular joint (TMJ) is paramount when assessing the joint for disease in juvenile idiopathic arthritis. Reliable features defining normal TMJs in children are limited. OBJECTIVE: To establish reliable normal standards for the TMJ at magnetic resonance imaging (MRI). MATERIALS AND METHODS: We included children and young adults aged 2-18 years undergoing a head MRI for reasons not believed to affect the TMJs...
December 12, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/29234822/-acute-vestibular-syndrome-clinical-examination-outperforms-mri-in-the-detection-of-central-lesions
#17
REVIEW
F Thömke
A significant number of patients who seek medical treatment in an emergency department because of vertigo or dizziness, suffer from acute vestibular syndrome. This is characterized by sustained vertigo, horizontal or horizontal rotatory jerk nystagmus, and unsteady stance and gait. In the acute situation it is crucial to differentiate patients with a peripheral vestibular disorder from those with a central disease. A number of recent studies have shown that a structured clinical examination enables a reliable differential diagnosis of central or peripheral disorders...
December 12, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/29234821/-neuroendocrine-tumors-of-the-abdomen
#18
REVIEW
M Juchems
CLINICAL/METHODICAL ISSUE: Gastroenteropancreatic neuroendocrine neoplasia (GEP-NEN) are a heterogeneous group of complex tumors, which is often difficult to classify due to heterogeneity and varying locations. STANDARD RADIOLOGICAL METHODS: Ultrasound, computed tomography (CT), magnetic resonance imaging (MRI) and positron-emission tomography computed tomography (PET/CT) are available for the localization of NEN as well as for the staging. METHODOLOGICAL INNOVATIONS: In particular, nuclear medical examination methods with somatostatin analogues are of great importance since radioactively labeled receptor ligands make tumors visible with high sensitivity...
December 12, 2017: Der Radiologe
https://www.readbyqxmd.com/read/29234724/lower-cerebral-blood-flow-in-subjects-with-alzheimer-s-dementia-mild-cognitive-impairment-and-subjective-cognitive-decline-using-two-dimensional-phase-contrast-magnetic-resonance-imaging
#19
Jolien F Leijenaar, Ingrid S van Maurik, Joost P A Kuijer, Wiesje M van der Flier, Philip Scheltens, Frederik Barkhof, Niels D Prins
Introduction: In this cross-sectional study, we aimed to detect differences in cerebral blood flow (CBF) between subjects with Alzheimer's disease (AD), mild cognitive impairment (MCI), and subjective cognitive decline (SCD), using two-dimensional phase-contrast magnetic resonance imaging. Methods: We included 74 AD patients (67 years, 51% female), 36 MCI patients (66 years, 33% female), and 62 patients with SCD (60 years, 32% female) from the Amsterdam Dementia Cohort...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/29234638/prospective-comparison-of-gd-eob-dtpa-enhanced-mri-with-dynamic-ct-for-detecting-recurrence-of-hcc-after-radiofrequency-ablation
#20
Yasuharu Imai, Kazuhiro Katayama, Masatoshi Hori, Takayuki Yakushijin, Kenji Fujimoto, Toshifumi Itoh, Takumi Igura, Mitsuru Sakakibara, Manabu Takamura, Masakatsu Tsurusaki, Hiroto Takahashi, Katsuyuki Nakanishi, Noriaki Usuki, Koh Tsuji, Hiroshi Ohashi, Tonsok Kim, Tetsuo Takehara, Takamichi Murakami
Background: We prospectively compared the efficacy of gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance imaging (MRI) with that of dynamic multidetector computed tomography (MDCT) for detection of recurrent hypervascular hepatocellular carcinoma (HCC) after radiofrequency ablation (RFA). Methods: Institutional review board approval and written informed consent were obtained for this multicenter study. Ninety-seven HCC patients treated with curative RFA underwent both Gd-EOB-DTPA-enhanced MRI and dynamic MDCT every 3-4 months...
November 2017: Liver Cancer
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