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https://www.readbyqxmd.com/read/29351262/imu-to-segment-assignment-and-orientation-alignment-for-the-lower-body-using-deep-learning
#1
Tobias Zimmermann, Bertram Taetz, Gabriele Bleser
Human body motion analysis based on wearable inertial measurement units (IMUs) receives a lot of attention from both the research community and the and industrial community. This is due to the significant role in, for instance, mobile health systems, sports and human computer interaction. In sensor based activity recognition, one of the major issues for obtaining reliable results is the sensor placement/assignment on the body. For inertial motion capture (joint kinematics estimation) and analysis, the IMU-to-segment (I2S) assignment and alignment are central issues to obtain biomechanical joint angles...
January 19, 2018: Sensors
https://www.readbyqxmd.com/read/29350271/development-of-unstable-hips-after-treatment-with-the-t%C3%A3-bingen-splint-mid-term-follow-up-of-83-hip-joints
#2
Hannes Kubo, Hakan Pilge, Karoline Nepp, Bettina Westhoff, Ruediger Krauspe
INTRODUCTION: Early diagnosis and treatment of hip dysplasia are widely accepted as major factors for beneficial outcome. However, modalities for reduction and retention as well as for imaging are currently under clinical investigation. Local and general risk factors, e.g., breech presentation and the family's desire to avoid in-hospital treatment are major concerns in the decision-making process and consultation. For treatment of unstable hips in newborns the treatment with the Tübingen splint has proven good results in recent studies...
January 19, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29337113/volta-phase-plate-data-collection-facilitates-image-processing-and-cryo-em-structure-determination
#3
Ottilie von Loeffelholz, Gabor Papai, Radostin Danev, Alexander G Myasnikov, S Kundhavai Natchiar, Isabelle Hazemann, Jean-François Ménétret, Bruno P Klaholz
A current bottleneck in structure determination of macromolecular complexes by cryo electron microscopy (cryo-EM) is the large amount of data needed to obtain high-resolution 3D reconstructions, including through sorting into different conformations and compositions with advanced image processing. Additionally, it may be difficult to visualize small ligands that bind in sub-stoichiometric levels. Volta phase plates (VPP) introduce a phase shift in the contrast transfer and drastically increase the contrast of the recorded low-dose cryo-EM images while preserving high frequency information...
January 11, 2018: Journal of Structural Biology
https://www.readbyqxmd.com/read/29336598/quantitative-mr-evaluation-of-chronic-pancreatitis-extracellular-volume-fraction-and-mr-relaxometry
#4
Temel Tirkes, Chen Lin, Enming Cui, Yu Deng, Paul R Territo, Kumaresan Sandrasegaran, Fatih Akisik
OBJECTIVE: The purpose of this study was to determine if extracellular volume fraction and T1 mapping can be used to diagnose chronic pancreatitis (CP). MATERIALS AND METHODS: This HIPAA-compliant study analyzed 143 consecutive patients with and without CP who underwent MR imaging between May 2016 and February 2017. Patients were selected for the study according to inclusion and exclusion criteria that considered history and clinical and laboratory findings. Eligible patients (n = 119) were grouped as normal (n = 60) or with mild (n = 22), moderate (n = 27), or severe (n = 10) CP on the basis of MRCP findings using the Cambridge classification as the reference standard...
January 16, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29334821/development-and-validation-of-a-facial-expression-database-based-on-the-dimensional-and-categorical-model-of-emotions
#5
Tomomi Fujimura, Hiroyuki Umemura
The present study describes the development and validation of a facial expression database comprising five different horizontal face angles in dynamic and static presentations. The database includes twelve expression types portrayed by eight Japanese models. This database was inspired by the dimensional and categorical model of emotions: surprise, fear, sadness, anger with open mouth, anger with closed mouth, disgust with open mouth, disgust with closed mouth, excitement, happiness, relaxation, sleepiness, and neutral (static only)...
January 15, 2018: Cognition & Emotion
https://www.readbyqxmd.com/read/29333100/assessment-of-the-temporomandibular-joint-function-in-young-adults-without-complaints-from-the-masticatory-system
#6
Wojciech Kondrat, Teresa Sierpińska, John Radke
Objective of the study was to evaluate the clinical status of the masticatory system in young adults with full permanent dentition and no stomatognathic system complaints. The study involved 186 randomly selected people with full dental arches with normal occlusal conditions corresponding to Angle's Class I aged 18 - 21 years with an average age of 19 years. Subjects were clinically examined and temporomandibular joint (TMJ) vibrations were recorded during open-wide and close movements using BioJVA. Then, patients were categorized into groups according to Piper's classification system...
2018: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/29330426/glucose-independent-segmental-phase-angles-from-multi-frequency-bioimpedance-analysis-to-discriminate-diabetes-mellitus
#7
Min-Ho Jun, Soochan Kim, Boncho Ku, JungHee Cho, Kahye Kim, Ho-Ryong Yoo, Jaeuk U Kim
We investigated segmental phase angles (PAs) in the four limbs using a multi-frequency bioimpedance analysis (MF-BIA) technique for noninvasively diagnosing diabetes mellitus. We conducted a meal tolerance test (MTT) for 45 diabetic and 45 control subjects stratified by age, sex and body mass index (BMI). HbA1c and the waist-to-hip-circumference ratio (WHR) were measured before meal intake, and we measured the glucose levels and MF-BIA PAs 5 times for 2 hours after meal intake. We employed a t-test to examine the statistical significance and the area under the curve (AUC) of the receiver operating characteristics (ROC) to test the classification accuracy using segmental PAs at 5, 50, and 250 kHz...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29327559/-combined-surgical-approaches-in-the-treatment-of-complex-tibial-plateau-fractures
#8
Guang-Hua Yuan, Xiao Zheng, Kang Chen
OBJECTIVE: To explore the early clinical efficacy of a posteromedial inverted "L" shape approach combined an assisted antero lateral assisted approach for the treatment of complex fractures of tibial plateau. METHODS: From March 2011 to June 2014, the posteromedial inverted "L" shape approach combined with the antero lateral assisted approach in the treatment of Schatzker type IV, V, VI tibial plateau fracture were performed in 34 cases. There were 23 males and 11 females, ranging in age from18 to 67 years old, averaged 34...
January 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29326514/modified-angle-s-classification-for-primary-dentition
#9
Kaushik Narendra Chandranee, Narendra Jayantilal Chandranee, Devendra Nagpal, Gagandeep Lamba, Purva Choudhari, Kavita Hotwani
Aim: This study aims to propose a modification of Angle's classification for primary dentition and to assess its applicability in children from Central India, Nagpur. Methods: Modification in Angle's classification has been proposed for application in primary dentition. Small roman numbers i/ii/iii are used for primary dentition notation to represent Angle's Class I/II/III molar relationships as in permanent dentition, respectively. To assess applicability of modified Angle's classification a cross-sectional preschool 2000 children population from central India; 3-6 years of age residing in Nagpur metropolitan city of Maharashtra state were selected randomly as per the inclusion and exclusion criteria...
October 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29325939/liponeurocytoma-of-the-cerebello-pontine-angle
#10
Carmela Chiaramonte, Sylvain Rabaste, Timothee Jacquesson, David Meyronet, François Cotton, Emmanuel Jouanneau, Moncef Berhouma
Liponeurocytoma is a very rare tumor classified as grade II (neuronal and mixed neuronal-glial tumors) according to 2016 WHO classification of Tumors of the Central Nervous System. The median age is 50-years-old and the most frequent location is the posterior cranial fossa especially within the cerebellar hemispheres; those arising in the cerebellopontine angle are exceptional. We herein report the clinical, radiological and pathological characteristics of a cerebellopontine angle liponeurocytoma in a 35-year-old woman...
January 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29325189/comparison-of-three-methods-to-quantify-laxity-in-the-canine-hip-joint
#11
Bart J G Broeckx, Aldo Vezzoni, Evelien Bogaerts, Mileva Bertal, Tim Bosmans, Emmelie Stock, Dieter Deforce, Luc Peelman, Jimmy H Saunders
OBJECTIVES:  Comparison of PennHIP and a novel method to diagnose hip laxity, called the Vezzoni modified Badertscher distension device technique. METHODS:  In a total of 10 dogs, it was first assessed whether the distraction index (DI) from the PennHIP evaluation center could be reproduced by two individual observers. In the next two steps, the DI measurements made by the individual observers and the PennHIP evaluation center were compared with the laxity index (LI) measured on the Vezzoni modified Badertscher distension device view...
January 2018: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/29324061/the-prediction-of-deterioration-of-nutritional-status-during-chemoradiation-therapy-in-patients-with-esophageal-cancer
#12
Sofia C M Rietveld, Jill E Witvliet-van Nierop, Karen Ottens-Oussoren, Donald L van der Peet, Marian A E de van der Schueren
Patients with esophageal cancer are at high risk of developing malnutrition during neoadjuvant chemoradiation therapy (CRT), which in turn is associated with postoperative morbidity. The aim of the study is to explore whether parameters of a complete pre-treatment nutritional status may predict deterioration of nutritional status during CRT in patients with esophageal cancer. In this prospective cohort study, 101 patients with esophageal cancer treated with CRT were included. Data of patient characteristics, tumor classification, performance score, %weight change, body mass index, fat (free) mass index, phase angle, handgrip strength, energy- and protein intake, and use of (additional) dietary supplements were collected...
January 11, 2018: Nutrition and Cancer
https://www.readbyqxmd.com/read/29320593/injection-depth-in-intradermal-therapy-update-and-correction-of-published-data
#13
Patrick Micheels, Lisa Goodman
BACKGROUND: This paper sought to compare calculated injection depth data with published report claims concerning intradermal therapy and skin rejuvenation of the face, hands, neck, and décolleté. OBJECTIVE: A mathematical formula was employed to assess the injection depth, and data from literature were retrieved and compared with the calculated figures to determine whether the claims about the injection depth proved correct. METHODS: Based on a study by Della Volpe et al...
January 1, 2018: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/29318414/accuracy-of-pedicle-screw-insertion-by-airo%C3%A2-intraoperative-ct-in-complex-spinal-deformity-assessed-by-a-new-classification-based-on-technical-complexity-of-screw-insertion
#14
S Rajasekaran, Manindra Bhushan, Siddharth Aiyer, Rishi Kanna, Ajoy Prasad Shetty
PURPOSE: To develop a classification based on the technical complexity encountered during pedicle screw insertion and to evaluate the performance of AIRO® CT navigation system based on this classification, in the clinical scenario of complex spinal deformity. MATERIALS AND METHODS: 31 complex spinal deformity correction surgeries were prospectively analyzed for performance of AIRO® mobile CT-based navigation system. Pedicles were classified according to complexity of insertion into five types...
January 9, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29315192/long-term-hearing-preservation-outcomes-for-small-vestibular-schwannomas-retrosigmoid-removal-versus-observation
#15
Weidong Zhu, Hongsai Chen, Huan Jia, Yongchuan Chai, Jie Yang, Zhaoyan Wang, Hao Wu
OBJECTIVE: Management of small vestibular schwannomas (VSs) consists of three options: serial observation, radiosurgery, and microsurgery. The authors reported the long-term hearing outcomes after retrosigmoid tumor removal in 110 patients and hearing follow-up outcomes in 160 serial observation patients with small VSs to explore the appropriate management strategy and predictive factors of hearing preservation for small VSs. STUDY DESIGN: Retrospective study. SETTING: Tertiary referral center...
February 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29301780/multiparametric-analysis-of-permeability-and-adc-histogram-metrics-for-classification-of-pediatric-brain-tumors-by-tumor-grade
#16
S Vajapeyam, D Brown, P R Johnston, K I Ricci, M W Kieran, H G W Lidov, T Y Poussaint
BACKGROUND AND PURPOSE: Accurate tumor grading is essential for treatment planning of pediatric brain tumors. We hypothesized that multiparametric analyses of a combination of permeability metrics and ADC histogram metrics would differentiate high- and low-grade tumors with high accuracy. MATERIALS AND METHODS: DTI and dynamic contrast-enhanced MR imaging using T1-mapping with flip angles of 2°, 5°, 10°, and 15°, followed by a 0.1-mmol/kg body weight gadolinium-based bolus was performed on all patients in addition to standard MR imaging...
January 4, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29299654/comparative-study-of-open-and-arthroscopic-coracoid-transfer-for-shoulder-anterior-instability-latarjet-computed-tomography-evaluation-at-a-short-term-follow-up-part-ii
#17
Bartłomiej Kordasiewicz, Maciej Kicinski, Konrad Małachowski, Janusz Wieczorek, Sławomir Chaberek, Stanisław Pomianowski
PURPOSE AND HYPOTHESIS: The aim of this study was to evaluate and to compare the radiological parameters after arthroscopic and open Latarjet technique via evaluation of computed tomography (CT) scans. Our hypothesis was that the radiological results after arthroscopic stabilisation remained in the proximity of those results achieved after open stabilisation. MATERIAL AND METHODS: CT scan evaluation results of patients after primary Latarjet procedure were analysed...
January 4, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29287662/the-influence-of-local-bone-quality-on-fracture-pattern-in-proximal-humerus-fractures
#18
Ruben A Mazzucchelli, Katharina Jenny, Vilijam Zdravkovic, Johannes B Erhardt, Bernhard Jost, Christian Spross
INTRODUCTION: Bone mineral density and fracture morphology are widely discussed and relevant factors when considering the different treatment options for proximal humerus fractures. It was the aim of this study to investigate the influence of local bone quality on fracture patterns of the Neer classification as well as on fracture impaction angle in these injuries. MATERIALS AND METHODS: All acute, isolated and non-pathological proximal humerus fractures admitted to our emergency department were included...
December 26, 2017: Injury
https://www.readbyqxmd.com/read/29285073/the-significance-of-magnetic-resonance-imaging-in-severe-femoral-trochlear-dysplasia-assessment
#19
Ji Shen, Le Qin, Wei-Wu Yao, Mei Li
The clinical diagnosis of femoral trochlear dysplasia primarily relies on imaging. In the past, plain imaging was the major source of diagnosis. The present study investigated the application of magnetic resonance imaging (MRI) in the objective assessment of severe femoral trochlear dysplasia. A retrospective analysis was performed on knee MRIs from 30 normal subjects (30 knees) and 59 patients (61 knees) with severe femoral trochlear dysplasia based on the Dejour morphological classification. Cartilage and subchondral bone landmarks were used to compare a series of measurements between patient and control groups...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29261773/classification-of-optic-disc-shape-in-glaucoma-using-machine-learning-based-on-quantified-ocular-parameters
#20
Kazuko Omodaka, Guangzhou An, Satoru Tsuda, Yukihiro Shiga, Naoko Takada, Tsutomu Kikawa, Hidetoshi Takahashi, Hideo Yokota, Masahiro Akiba, Toru Nakazawa
PURPOSE: This study aimed to develop a machine learning-based algorithm for objective classification of the optic disc in patients with open-angle glaucoma (OAG), using quantitative parameters obtained from ophthalmic examination instruments. METHODS: This study enrolled 163 eyes of 105 OAG patients (age: 62.3 ± 12.6, mean deviation of Humphrey field analyzer: -8.9 ± 7.5 dB). The eyes were classified into Nicolela's 4 optic disc types by 3 glaucoma specialists...
2017: PloS One
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