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https://www.readbyqxmd.com/read/28328064/a-bibliometric-analysis-of-pediatric-liver-transplantation-publications
#1
Dermot T McDowell, Alexandre Darani, Albert Shun, Gordon Thomas, Andrew J A Holland
Citation counts can identify landmark papers. The aim of this study was to identify and characterize the top-cited articles in the pediatric liver transplantation literature. A search strategy for the Scopus(®) database was designed for pediatric liver transplantation publications from 1945 to 2014. The 50 top-cited articles were analyzed. Author co-citation analysis was performed using VOSviewer techniques. There were 2896 articles published between 1969 and 2015. The mean citation count of the top 50 cited articles was 166 (range 95-635)...
March 22, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28320671/an-indoor-wayfinding-system-based-on-geometric-features-aided-graph-slam-for-the-visually-impaired
#2
He Zhang, Cang Ye
This paper presents a 6-DOF pose estimation (PE) method and an indoor wayfinding system based on the method for the visually impaired. The PE method involves two graph SLAM processes to reduce the accumulative pose error of the device. In the first step, the floor plane is extracted from the 3D camera's point cloud and added as a landmark node into the graph for 6-DOF SLAM to reduce roll, pitch and Z errors. In the second step, the wall lines are extracted and incorporated into the graph for 3-DOF SLAM to reduce X, Y and yaw errors...
March 15, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28316979/a-registration-method-based-on-contour-point-cloud-for-3d-whole-body-pet-and-ct-images
#3
Zhiying Song, Huiyan Jiang, Qiyao Yang, Zhiguo Wang, Guoxu Zhang
The PET and CT fusion image, combining the anatomical and functional information, has important clinical meaning. An effective registration of PET and CT images is the basis of image fusion. This paper presents a multithread registration method based on contour point cloud for 3D whole-body PET and CT images. Firstly, a geometric feature-based segmentation (GFS) method and a dynamic threshold denoising (DTD) method are creatively proposed to preprocess CT and PET images, respectively. Next, a new automated trunk slices extraction method is presented for extracting feature point clouds...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28287567/experimental-design-for-laser-microdissection-rna-seq-lessons-from-an-analysis-of-maize-leaf-development
#4
Robyn M Johnston, Anne W Sylvester, Michael J Scanlon
Genes with important roles in development frequently have spatially and/or temporally restricted expression patterns. Often these gene transcripts are not detected or are not identified as differentially expressed (DE) in transcriptomic analyses of whole plant organs. Laser Microdissection RNA-Seq (LM RNA-Seq) is a powerful tool to identify genes that are DE in specific developmental domains. However, the choice of cellular domains to microdissect and compare, and the accuracy of the microdissections are crucial to the success of the experiments...
March 5, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28273512/multi-resolution-multi-object-statistical-shape-models-based-on-the-locality-assumption
#5
Matthias Wilms, Heinz Handels, Jan Ehrhardt
Statistical shape models learned from a population of previously observed training shapes are nowadays widely used in medical image analysis to aid segmentation or classification. However, providing an appropriate and representative training population of preferably manual segmentations is typically either very labor-intensive or even impossible. Therefore, statistical shape models in practice frequently suffer from the high-dimension-low-sample-size (HDLSS) problem resulting in models with insufficient expressiveness...
February 17, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/28271959/anthropometry-of-brazilian-air-force-pilots
#6
Gilvan V da Silva, Manny Halpern, Claire C Gordon
Anthropometric data are essential for the design of military equipment including sizing of aircraft cockpits and personal gear. Currently, there are no anthropometric databases specific to Brazilian military personnel. The aim of this study was to create a Brazilian anthropometric database of Air Force pilots. The methods, protocols, descriptions, definitions, landmarks, tools and measurements procedures followed the instructions outlined in Measurer's Handbook: US Army and Marine Corps Anthropometric Surveys, 2010-2011 - NATICK/TR-11/017...
March 14, 2017: Ergonomics
https://www.readbyqxmd.com/read/28268998/mapping-the-retinas-of-a-patient-using-a-mixed-set-of-fundus-photographs-from-both-eyes
#7
Gwenole Quellec, Mathieu Lamard, Guy Cazuguel, Ali Erginay, Beatrice Cochener
With the increased prevalence of retinal pathologies, automating the detection and progression measurement of these pathologies is becoming more and more relevant. Color fundus photography is the leading modality for assessing retinal pathologies. Because eye fundus cameras have a limited field of view, multiple photographs are taken from each retina during an eye fundus examination. However, operators usually don't indicate which photographs are from the left retina and which ones are from the right retina...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268561/automatic-anterior-chamber-angle-structure-segmentation-in-as-oct-image-based-on-label-transfer
#8
Huazhu Fu, Yanwu Xu, Damon Wing Kee Wong, Jiang Liu, Mani Baskaran, Shamira A Perera, Tin Aung
The anterior chamber angle (ACA) plays an important role for diagnosis and treatment of angle-closure glaucoma. Anterior Segment Optical Coherence Tomography (AS-OCT) imaging is qualitative and quantitative assessment for the ACA structure. In this paper, we propose a novel fully automatic segmentation method for anterior chamber angle structure in AS-OCT. In our method, the initial labels are obtained by using label transfer from the AS-OCT reference dataset. Then, these labels are refined and utilized as the landmarks to support the structure segmentation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268532/slice-correspondence-estimation-using-surf-descriptors-and-context-based-search-for-prostate-whole-mount-histology-mri-registration
#9
Lina Guzman, Frederic Commandeur, Oscar Acosta, Antoine Simon, Alain Fautrel, Nathalie Rioux-Leclercq, Eduardo Romero, Romain Mathieu, Renaud de Crevoisier
Registration of histopathology volumes to Magnetic Resonance Images(MRI) is a crucial step for finding correlations in Prostate Cancer (PCa) and assessing tumor agressivity. This paper proposes a two-stage framework aimed at registering both modalities. Firstly, Speeded-Up Robust Features (SURF) algorithm and a context-based search is used to automatically determine slice correspondences between MRI and histology volumes. This step initializes a multimodal nonrigid registration strategy, which allows to propagate histology slices to MRI...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268531/non-rigid-mri-ct-registration-for-effective-planning-of-prostate-brachytherapy
#10
I Hamdan, G Dardenne, J Bert, D Visvikis
Prostate brachytherapy is an intraoperative radiotherapy technique for irradiating prostate tumors by placing radioactive sources inside the prostate. CT image is used to calculate a personalized dose distribution (PDD) while the MRI is used to visualize the tumor and the organs at risk. Therefore, a registration of preoperative MRI and CT is essential since it could improve the overall precision of the treatment planning, the placement of radioactive sources inside the prostate as well as the visualization of the dose distribution with respect to the tumor...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28264728/the-posterior-auricular-muscle-a-useful-anatomical-landmark-for-otoplasty
#11
C Stephen, A G Lowrie
BACKGROUND: The correct anatomical placement of conchomastoid sutures during suture otoplasty can sometimes prove challenging. If the suture vector is inaccurate, reduction can be difficult and this may lead to malrotation of the pinna. METHODS: This paper describes the adoption of the auricularis posterior muscle, which runs from the mastoid to the concha and whose function is to adduct the pinna, as a marker for conchomastoid suture placement. RESULTS AND CONCLUSION: The muscle is easily identified and dissected, providing a landmark for the placement of sutures onto the adjacent concha and mastoid fascia...
March 7, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28256162/application-of-off-the-shelf-stereo-cameras-for-the-3d-assessment-of-morphometric-variations-caused-by-rhinoplasty
#12
Luigi Maria Galantucci, Fulvio Lavecchia, Patrizia Pastore, Gianluca Percoco
The present paper shows how a non-invasive and low-cost photogrammetric stereo device allows the assessment of morphometric variations of the nose following rhinoplasty. Six female patients, aged between 24 and 37 years, underwent 3D stereo-photogrammetric scanning. Three-dimensional computerised models were generated, extracting also information related to the coordinates of facial landmarks, distances between landmarks, angles, in pre- and postoperative situation. Two kinds of analysis were carried out: (i) statistical correlation between size variations and (ii) morphometric analysis, including General Procrustes Analysis (GPA), Principal Components Analysis (PCA) and Warping...
April 2017: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/28250713/identification-and-visualization-of-the-intellectual-structure-and-the-main-research-lines-in-nanoscience-and-nanotechnology-at-the-worldwide-level
#13
Teresa Muñoz-Écija, Benjamín Vargas-Quesada, Zaida Chinchilla-Rodríguez
The aim of this paper is to make manifest the intellectual and cognitive structure of nanoscience and nanotechnology (NST) by means of visualization techniques. To this end, we used data from the Web of Science (WoS), delimiting the data to the category NST during the period of 2000-2013, retrieving a total of 198,275 documents. Through direct author citation of these works, we identified their origins and the seminal papers, and through word co-occurrence extracted from the titles and abstracts, the main lines of research were identified...
2017: Journal of Nanoparticle Research: An Interdisciplinary Forum for Nanoscale Science and Technology
https://www.readbyqxmd.com/read/28246895/mastoidectomy-dimensions-for-direct-acoustic-cochlear-implantation-a-human-cadaveric-temporal-bone-study
#14
Francesco Fiorino, Maurizio Amadori
The objective of the present paper was to acquire information about the mastoidectomy size necessary to obtain an optimal placement of the direct acoustic cochlear implant actuator and fixation system. Ten human cadaveric temporal bones were dissected and implanted with direct acoustic cochlear implant. Mastoidectomy size was determined after implantation in each temporal bone. A bone bed for the receiver/stimulator, mastoidectomy and a large posterior tympanotomy were drilled out. The mastoidectomy was progressively enlarged posteriorly in small steps until the actuator template was judged adequately oriented to enable passage of the rod through the posterior tympanotomy without any contact with the bony walls...
February 28, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28242066/insertion-of-psoas-minor-tendon-at-pelvic-brim-a-novel-anatomic-landmark-for-extra-articular-screw-placement-through-stoppa-approach
#15
Ruipeng Zhang, Zhiyong Hou, Liping Zhang, Yingchao Yin, Wei Chen, Yingze Zhang
BACKGROUND: The psoas minor partially inserted to the superior pelvic brim. And the plate used to fix the acetabular fracture has always been positioned at the pelvic brim after reduction through the Stoppa approach. However, there are few studies depicting the clinical significance of the psoas minor. The purpose of this paper was to explore the relationship between the insertion of the psoas minor tendon at the pelvic brim (IPMTPB) and screw placement through the Stoppa approach. MATERIALS AND METHODS: Fifteen cadavers were dissected for adequate exposure to IPMTPB in our study...
February 21, 2017: Injury
https://www.readbyqxmd.com/read/28227208/mapping-the-retinas-of-a-patient-using-a-mixed-set-of-fundus-photographs-from-both-eyes
#16
Gwenole Quellec, Mathieu Lamard, Guy Cazuguel, Ali Erginay, Beatrice Cochener, Gwenole Quellec, Mathieu Lamard, Guy Cazuguel, Ali Erginay, Beatrice Cochener, Gwenole Quellec, Guy Cazuguel, Mathieu Lamard, Ali Erginay, Beatrice Cochener
With the increased prevalence of retinal pathologies, automating the detection and progression measurement of these pathologies is becoming more and more relevant. Color fundus photography is the leading modality for assessing retinal pathologies. Because eye fundus cameras have a limited field of view, multiple photographs are taken from each retina during an eye fundus examination. However, operators usually don't indicate which photographs are from the left retina and which ones are from the right retina...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226738/automatic-anterior-chamber-angle-structure-segmentation-in-as-oct-image-based-on-label-transfer
#17
Huazhu Fu, Yanwu Xu, Damon Wing Kee Wong, Jiang Liu, Mani Baskaran, Shamira A Perera, Tin Aung, Huazhu Fu, Yanwu Xu, Damon Wing Kee Wong, Jiang Liu, Mani Baskaran, Shamira A Perera, Tin Aung, Mani Baskaran, Tin Aung, Huazhu Fu, Yanwu Xu, Damon Wing Kee Wong, Jiang Liu, Shamira A Perera
The anterior chamber angle (ACA) plays an important role for diagnosis and treatment of angle-closure glaucoma. Anterior Segment Optical Coherence Tomography (AS-OCT) imaging is qualitative and quantitative assessment for the ACA structure. In this paper, we propose a novel fully automatic segmentation method for anterior chamber angle structure in AS-OCT. In our method, the initial labels are obtained by using label transfer from the AS-OCT reference dataset. Then, these labels are refined and utilized as the landmarks to support the structure segmentation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226707/slice-correspondence-estimation-using-surf-descriptors-and-context-based-search-for-prostate-whole-mount-histology-mri-registration
#18
Lina Guzman, Frederic Commandeur, Oscar Acosta, Antoine Simon, Alain Fautrel, Nathalie Rioux-Leclercq, Eduardo Romero, Romain Mathieu, Renaud de Crevoisier, Lina Guzman, Frederic Commandeur, Oscar Acosta, Antoine Simon, Alain Fautrel, Nathalie Rioux-Leclercq, Eduardo Romero, Romain Mathieu, Renaud de Crevoisier, Frederic Commandeur, Romain Mathieu, Antoine Simon, Alain Fautrel, Eduardo Romero, Renaud De Crevoisier, Oscar Acosta, Nathalie Rioux-Leclercq, Lina Guzman
Registration of histopathology volumes to Magnetic Resonance Images(MRI) is a crucial step for finding correlations in Prostate Cancer (PCa) and assessing tumor agressivity. This paper proposes a two-stage framework aimed at registering both modalities. Firstly, Speeded-Up Robust Features (SURF) algorithm and a context-based search is used to automatically determine slice correspondences between MRI and histology volumes. This step initializes a multimodal nonrigid registration strategy, which allows to propagate histology slices to MRI...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226705/non-rigid-mri-ct-registration-for-effective-planning-of-prostate-brachytherapy
#19
I Hamdan, G Dardenne, J Bert, D Visvikis, I Hamdan, G Dardenne, J Bert, D Visvikis, I Hamdan, G Dardenne, J Bert, D Visvikis
Prostate brachytherapy is an intraoperative radiotherapy technique for irradiating prostate tumors by placing radioactive sources inside the prostate. CT image is used to calculate a personalized dose distribution (PDD) while the MRI is used to visualize the tumor and the organs at risk. Therefore, a registration of preoperative MRI and CT is essential since it could improve the overall precision of the treatment planning, the placement of radioactive sources inside the prostate as well as the visualization of the dose distribution with respect to the tumor...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28220268/anterolateral-ligament-expert-group-consensus-paper-on-the-management-of-internal-rotation-and-instability-of-the-anterior-cruciate-ligament-deficient-knee
#20
REVIEW
Bertrand Sonnery-Cottet, Matthew Daggett, Jean-Marie Fayard, Andrea Ferretti, Camilo Partezani Helito, Martin Lind, Edoardo Monaco, Vitor Barion Castro de Pádua, Mathieu Thaunat, Adrian Wilson, Stefano Zaffagnini, Jacco Zijl, Steven Claes
Purpose of this paper is to provide an overview of the latest research on the anterolateral ligament (ALL) and present the consensus of the ALL Expert Group on the anatomy, radiographic landmarks, biomechanics, clinical and radiographic diagnosis, lesion classification, surgical technique and clinical outcomes. A consensus on controversial subjects surrounding the ALL and anterolateral knee instability has been established based on the opinion of experts, the latest publications on the subject and an exchange of experiences during the ALL Experts Meeting (November 2015, Lyon, France)...
February 20, 2017: Journal of Orthopaedics and Traumatology: Official Journal of the Italian Society of Orthopaedics and Traumatology
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