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https://www.readbyqxmd.com/read/29786925/computed-tomographic-and-radiographic-bronchial-collapse-may-be-a-normal-characteristic-of-forced-expiration-in-dogs
#1
Hyunryung Kim, Young Joo Kim, Hanbin Lee, Taegeon An, Jin Yu, Hyounglok Yoon, Gayeon An, Jaihyun Jung, Jinhwa Chang, Dongwoo Chang
Tracheobronchomalacia has been diagnosed using radiography or bronchoscopy to confirm bronchial changes in luminal diameter during the respiratory cycle. However, studies in healthy humans suggest that some degree of bronchial collapse may be observed during the normal respiratory cycle. In this analytical study, the luminal diameter of the bronchus to each of the six pulmonary lobes and the mean percentage of expiratory collapse from end inspiratory, end expiratory, and two forced expiratory phases (10 and 15 ml/kg) were determined via computed tomography (CT) and radiography in 22 healthy Beagle dogs...
May 22, 2018: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29786893/primary-cystic-duct-carcinoma-diagnosed-by-targeted-biopsy-with-digital-cholangioscopy
#2
Masaki Miyazawa, Shogo Matsuda, Uichiro Fuchizaki
A 79-year-old man was introduced to our hospital for obstructive jaundice. Computed tomography (CT) showed the stricture of the common bile duct (CBD) and the cystic duct (CD) (Fig. 1). Suspicious diagnosis was cholangiocarcinoma. Endoscopic retrograde cholangiography (ERC) showed the stricture of the CBD and the CD dilatation. This article is protected by copyright. All rights reserved.
May 22, 2018: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/29786877/morphomic-malnutrition-score-a-standardized-screening-tool-for-severe-malnutrition-in-adults
#3
Christopher Lee, Erica Raymond, Brian A Derstine, Joshua M Glazer, Rebecca Goulson, Avinash Rajasekaran, Jill Cherry-Bukowiec, Grace L Su, Stewart C Wang
BACKGROUND: Granular diagnostic criteria for adult malnutrition are lacking. OBJECTIVE: This study uses analytic morphomics to define the Morphomic Malnutrition Score (MMS), a robust screening tool for severe malnutrition. METHODS: The study population (n = 643) consisted of 2 cohorts: 1) 124 emergency department patients diagnosed with severe malnutrition by a registered dietitian (RD) and an available computed tomography (CT) scan within 2 days of RD evaluation, and 2) 519 adult kidney donor candidates to represent a healthy cohort...
May 22, 2018: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29786862/experimental-fluence-modulated-proton-computed-tomography-by-pencil-beam-scanning
#4
George Dedes, Robert P Johnson, Mark Pankuch, Nick Detrich, Willemijn M A Pols, Simon Rit, Reinhard W Schulte, Katia Parodi, Guillaume Landry
PURPOSE: This experimental study is aimed at demonstrating, using a simple cylindrical water phantom, the feasibility of fluence modulated proton computed tomography (FMpCT) by pencil beam scanning (PBS) proton computed tomography (pCT). METHODS: The phase II pCT prototype of the Loma Linda U. and U. C. Santa Cruz was operated using the PBS beam line of the Northwestern Medicine Chicago Proton Center. A 20x10 grid of 1.37 cm full width half maximum pencil beams (PB) equally spaced by 1 cm was used to acquire 45 projections in step and shoot mode...
May 22, 2018: Medical Physics
https://www.readbyqxmd.com/read/29786835/bilateral-asymmetry-of-the-humerus-in-neandertals-australian-aborigines-and-medieval-humans
#5
Anna Maria Kubicka, Wioletta Nowaczewska, Antoine Balzeau, Janusz Piontek
OBJECTIVES: Bilateral asymmetry of diaphyseal shape and size may be a reflection of relative activity levels and patterns of habitual biomechanical stress in the upper arms of Neandertals and Homo sapiens. The main purpose of our study was to assess the level of directional asymmetry of humeral cross sections in Neandertals, recent Australian aborigines, and medieval farmers. MATERIALS AND METHODS: Indices of directional and absolute asymmetry (%DA and %AA) of humeral cross-sectional properties in Neandertals and recent Homo sapiens were calculated...
May 22, 2018: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/29786826/rare-case-of-bilateral-incarcerated-obturator-hernia-a-case-report
#6
Engin Hatipoğlu, Fatih Dal, Veysel Umman, Süleyman Demiryas, Oktay Demirkıran, Metin Ertem, Sabri Ergüney, Salih Pekmezci
Here, we report the case of an 84-year-old woman with acute mechanical intestinal obstruction (AMIO) who was admitted to our Emergency Department. Computed tomography (CT) scan revealed an incarcerated bilateral obturator hernia, and the defect was resolved using transabdominal preperitoneal (TAPP) technique with polypropylene mesh. The patient was administered an oral regimen two days after the operation. The patient stayed in the intensive care unit for 4 days and was uneventfully discharged on the 9th postoperative day...
May 2018: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29786819/evaluation-of-pterygoid-plate-fractures-unrelated-to-le-fort-fractures-using-maxillofacial-computed-tomography
#7
Serra Özbal Güneş, Yeliz Aktürk, Esra Soyer Güldoğan
BACKGROUND: This study aims to describe the major pterygoid plate fractures (PPFs) patterns unrelated to Le Fort fractures (LFFs) using maxillofacial computed tomography (CT). METHODS: After obtaining our hospital ethics committee approval (37-05), data for PPF were acquired from the medical records of all the trauma patients who were diagnosed using CT at our hospital from April 2014 to April 2017. RESULTS: Of the 178 patients, 135 (male/female = 86/49; mean age = 37...
May 2018: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29786774/computational-fluid-dynamics-modeling-of-the-human-pulmonary-arteries-with-experimental-validation
#8
Alifer D Bordones, Matthew Leroux, Vitaly O Kheyfets, Yu-An Wu, Chia-Yuan Chen, Ender A Finol
Pulmonary hypertension (PH) is a chronic progressive disease characterized by elevated pulmonary arterial pressure, caused by an increase in pulmonary arterial impedance. Computational fluid dynamics (CFD) can be used to identify metrics representative of the stage of PH disease. However, experimental validation of CFD models is often not pursued due to the geometric complexity of the model or uncertainties in the reproduction of the required flow conditions. The goal of this work is to validate experimentally a CFD model of a pulmonary artery phantom using a particle image velocimetry (PIV) technique...
May 21, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29786616/derivation-of-new-diagnostic-reference-levels-for-neuro-paediatric-computed-tomography-examinations-in-switzerland
#9
Franca Wagner, Julie Bize, Damien Racine, Regis Le Coultre, Verdun Francis, Philipp Trueb, Reto Treier
Definition of new national diagnostic reference levels (DRLs) for volume computed tomography dose index (CTDIvol) and dose length product (DLP) for neuro-paediatric CT examinations depending on the medical indication.
 Methods: Paediatric cranial CT data sets acquired between January 2013 and December 2016 were retrospectively collected between July 2016 and March 2017 from the eight largest university and cantonal hospitals that perform most of the neuro-paediatric CTs in Switzerland. A consensus review of CTDIvol and DLP was undertaken for the three defined anatomical regions: brain, facial bone and petrous bone; each with and without contrast medium application...
May 22, 2018: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/29786483/immediate-mild-reactions-to-ct-with-iodinated-contrast-media-strategy-of-contrast-readministration-without-corticosteroids
#10
Sae-Jin Park, Dong-Yoon Kang, Kyoung-Hee Sohn, Soon-Ho Yoon, Whal Lee, Young-Hun Choi, Sang Heon Cho, Hye-Ryun Kang
Purpose To evaluate premedication protocols involving administration of antihistamine and multidose corticosteroid that have been widely used in prevention of recurrent hypersensitivity reactions (HSRs) to iodinated contrast media (ICM); an evidence-based optimal preventive strategy customized for patients with mild cases has not yet been established. Materials and Methods The outcomes of patients with mild HSR who subsequently underwent contrast material-enhanced computed tomography (CT) between January 2012 and December 2015 were analyzed...
May 16, 2018: Radiology
https://www.readbyqxmd.com/read/29786455/estimation-of-bone-mineral-density-and-breaking-strength-on-laying-hens-based-on-scans-of-computed-tomography-for-body-composition-analysis
#11
T Donkó, A Tischler, Á Csóka, G Kovács, M Emri, Ö Petneházy, A Szabó, V Halas, J Tossenberger, R Garamvölgyi, G Bajzik
1. The objective of this study was to evaluate the prediction potential of a computer tomography (CT) data collection protocol for determining total body composition used for analysis onwards the tibiotarsal bone quality features. 2. The CT image acquisition was performed on 54 healthy TETRA SL aying hens at 90 weeks of age as well as in the 69th week of the egg production period in vivo and their tibiotarsal bones, ex vivo. 3. Breaking strengths and ash content of the tibiotarsal bones were estimated based on the calculated mineral density of skeletal and tibiotarsal bones by means of CT with an estimation accuracy R2 0...
May 22, 2018: British Poultry Science
https://www.readbyqxmd.com/read/29786189/-renal-infarction-multicentric-cases-in-piedmont
#12
Daria Motta, Andrea Airoldi, Serena Bainotti, Manuel Burdese, Andrea Campo, Luigia Costantini, Raffaella Cravero, Paola Mesiano, Giorgina B Piccoli, Olga Randone, Andrea Serra, Patrizia Vio, Roberto Boero
We describe factors associated to renal infarction, clinical, instrumental and laboratoristic features, and therapeutic strategies too. This is an observational, review and polycentric study of cases in Nephrologic Units in Piedmont during 2013-2015, with diagnosis of renal infarction by Computed Tomography Angiography (CTA). We collected 48 cases (25 M, age 57±16i; 23 F age 70±18, p = 0.007), subdivided in 3 groups based on etiology: group 1: cardio-embolic (n=19) ; group 2: coagulation abnormalities (n= 9); group 3: other causes or idiopathic (n=20)...
May 2018: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/29786151/time-dependent-loss-of-trabecular-bone-in-human-tibial-plateau-fractures
#13
Lucian Bogdan Solomon, David Kitchen, Paul Hamill Anderson, Dongqing Yang, Yolandi Starczak, Masakazu Kogawa, Egon Perilli, Peter Jonathan Smitham, Mark Sean Rickman, Dominic Thewlis, Gerald James Atkins
We investigated if time between injury and surgery affects cancellous bone properties in patients suffering tibial plateau fractures (TPF), in terms of structural integrity and gene expression controlling bone loss. A cohort of 29 TPF, operated 1-17 days post-injury, had biopsies from the fracture and an equivalent contralateral limb site, at surgery. Samples were assessed using micro-computed tomography and real-time RT-PCR analysis for the expression of genes known to be involved in bone remodeling and fracture healing...
May 22, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29785934/imaging-modalities-in-the-etiologic-evaluation-of-unilateral-vocal-fold-paralysis
#14
Suat Bilici, Muhammet Yildiz, Ozgur Yigit, Esra Misir
OBJECTIVE: This study aimed to investigate the roles of computed tomography (CT) and neck ultrasonography (US) in evaluating unilateral vocal fold paralysis (UVFP) of unknown etiology and to compare our results with those of other studies to assess the differences in etiology of UVFP. METHODS: We investigated the medical records of 202 eligible patients with UVFP. In total, 168 underwent chest CT, 118 underwent neck CT, and 108 underwent head CT. One hundred and three patients were also evaluated with high-resolution neck US...
May 18, 2018: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/29785933/a-comparison-of-peripheral-imaging-technologies-for-bone-and-muscle-quantification-a-review-of-segmentation-techniques
#15
REVIEW
Andy Kin On Wong, Sarah Lynn Manske
Musculoskeletal science has developed many overlapping branches, necessitating specialists from 1 area of focus to often require the expertise in others. In terms of imaging, this means obtaining a comprehensive illustration of bone, muscle, and fat tissues. There is currently a lack of a reliable resource for end users to learn about these tissues' imaging and quantification techniques together. An improved understanding of these tissues has been an important progression toward better prediction of disease outcomes and better elucidation of their interaction with frailty, aging, and metabolic disorders...
April 17, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29785859/apposition-and-positioning-of-the-nellix-endovascular-aneurysm-sealing-system-in-the-infrarenal-aortic-neck
#16
Kim van Noort, Simon P Overeem, Ruben van Veen, Jan M M Heyligers, Michel M P J Reijnen, Richte C L Schuurmann, Cornelis H Slump, Rogier Kropman, Jean-Paul P M de Vries
PURPOSE: To investigate the initial proximal position and seal of the Nellix EndoVascular Aneurysm Sealing (EVAS) system in the aortic neck using a novel methodology. METHODS: Forty-six consecutive patients who underwent elective EVAS for an abdominal aortic aneurysm were retrospectively selected and dichotomized into an early (n = 23) and a late (n = 23) group. The aortic neck morphology and aortic neck surface (ANS) were determined on preoperative computed tomography (CT) scans; the endograft position and nonapposition surface (NAS) were determined on the 1-month CT scans...
May 1, 2018: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/29785677/analysis-of-the-frequency-of-visualization-of-morphological-variations-in-anatomical-bone-features-in-the-mandibular-interforaminal-region-through-cone-beam-computed-tomography
#17
Marilza do Carmo Oliveira, Tamara Kerber Tedesco, Thais Gimenez, Sergio Allegrini
PURPOSE: The purpose of this study was to analyze the frequency of visualization of anatomical bone features and their possible variations in the mandibular interforaminal region through cone-beam computed tomography (CBCT). METHODS: This is a cross-sectional study that evaluated CBCT scans of the mandible of 141 women and 61 men, obtained by imaging archives from two private clinics of dental radiology. The study analyzed the frequency of visualization of: lingual symphyseal foramen (LSF), additional mental foramen (AdMF), absence of mental foramen (AbMF), mandibular incisive canal (MIC), and anterior loop (AL)...
May 21, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29785666/evaluation-of-ostarine-as-a-selective-androgen-receptor-modulator-in-a-rat-model-of-postmenopausal-osteoporosis
#18
D B Hoffmann, M Komrakova, S Pflug, M von Oertzen, D Saul, L Weiser, T A Walde, M Wassmann, A F Schilling, W Lehmann, S Sehmisch
Selective androgen receptor modulators (SARMs) have shown beneficial effects on muscle wasting, general physical function and bone properties in male mammals. However, data on the effects of SARMs in postmenopausal osteoporotic bone are scarce. We evaluated the effects of the SARM drug ostarine on postmenopausal osteoporotic bone in a rat osteoporosis model. Ovariectomy was performed on 46 of 56 3-month-old female Sprague-Dawley rats. Eight weeks after ovariectomy, ostarine was orally administered daily for 5 weeks in dosages of 0...
May 21, 2018: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29785570/phase-1b-investigation-of-the-mek-inhibitor-binimetinib-in-patients-with-advanced-or-metastatic-biliary-tract-cancer
#19
R S Finn, D H Ahn, M M Javle, B R Tan, C D Weekes, J C Bendell, A Patnaik, G N Khan, D Laheru, R Chavira, J Christy-Bittel, E Barrett, M B Sawyer, Tanios S Bekaii-Saab
Background The MAPK pathway plays a central role in regulation of several cellular processes, and its dysregulation is a hallmark of biliary tract cancer (BTC). Binimetinib (MEK162), a potent, selective oral MEK1/2 inhibitor, was assessed in patients with advanced BTC. Patients and Methods An expansion cohort study in patients who received ≤1 line of therapy for advanced BTC was conducted after determination of the maximum tolerated dose in this Phase 1 trial. Patients received binimetinib 60 mg twice daily...
May 22, 2018: Investigational New Drugs
https://www.readbyqxmd.com/read/29785455/robotic-assisted-laparoscopic-median-arcuate-ligament-release-7-year-experience-from-a-single-tertiary-care-center
#20
Usah Khrucharoen, Yen-Yi Juo, Yas Sanaiha, Yijun Chen, Juan C Jimenez, Erik P Dutson
BACKGROUND: Despite previous reports of robotic-assisted laparoscopic release for median arcuate ligament syndrome (MALS), the safety and efficacy profile of this approach has been difficult to establish due to the rarity of this diagnostic entity. We aim to present our experience from a tertiary minimally invasive surgery referral center. METHODS: A case series was performed whereby all patients who underwent robotic-assisted MAL release from July 2010 to July 2017 at our institution were included...
May 21, 2018: Surgical Endoscopy
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