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https://www.readbyqxmd.com/read/28213868/elliptical-fourier-analysis-fundamentals-applications-and-value-for-forensic-anthropology
#1
REVIEW
Jodi Caple, John Byrd, Carl N Stephan
The numerical description of skeletal morphology enables forensic anthropologists to conduct objective, reproducible, and structured tests, with the added capability of verifying morphoscopic-based analyses. One technique that permits comprehensive quantification of outline shape is elliptical Fourier analysis. This curve fitting technique allows a form's outline to be approximated via the sum of multiple sine and cosine waves, permitting the profile perimeter of an object to be described in a dense (continuous) manner at a user-defined level of precision...
February 17, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28207388/segmentation-of-pathological-structures-by-landmark-assisted-deformable-models
#2
Bulat Ibragimov, Robert Korez, Bostjan Likar, Franjo Pernus, Lei Xing, Tomaz Vrtovec
Computerized segmentation of pathological structures in medical images is challenging, as, in addition to unclear image boundaries, image artifacts and traces of surgical activities, the shape of pathological structures may be very different from the shape of normal structures. Even if a sufficient number of pathological training samples are collected, statistical shape modeling cannot always capture shape features of pathological samples as they may be suppressed by shape features of a considerably larger number of healthy samples...
February 13, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28195536/patient-autonomy-within-real-or-valid-consent-samira-kohli-s-case
#3
Supriya Subramani
In bioethics literature, the primary justification for the requirement of informed consent has been the protection of autonomous choices. To allow patients to be autonomous decision-makers, physicians are supposed to disclose and share information related to all treatment, procedures and risks. Advocates of the autonomy-based informed consent model argue that in informed consent cases, the disclosure of information should be according to the reasonable person standard or reasonable patient standard, rather than the average competent physician standard...
January 18, 2017: Indian Journal of Medical Ethics
https://www.readbyqxmd.com/read/28141829/vehicle-autonomous-localization-in-local-area-of-coal-mine-tunnel-based-on-vision-sensors-and-ultrasonic-sensors
#4
Zirui Xu, Wei Yang, Kaiming You, Wei Li, Young-Il Kim
This paper presents a vehicle autonomous localization method in local area of coal mine tunnel based on vision sensors and ultrasonic sensors. Barcode tags are deployed in pairs on both sides of the tunnel walls at certain intervals as artificial landmarks. The barcode coding is designed based on UPC-A code. The global coordinates of the upper left inner corner point of the feature frame of each barcode tag deployed in the tunnel are uniquely represented by the barcode. Two on-board vision sensors are used to recognize each pair of barcode tags on both sides of the tunnel walls...
2017: PloS One
https://www.readbyqxmd.com/read/28129155/learning-deep-sharable-and-structural-detectors-for-face-alignment
#5
Hao Liu, Jiwen Lu, Jianjiang Feng, Jie Zhou
Face alignment aims at localizing multiple facial landmarks for a given facial image, which usually suffers from large variances of diverse facial expressions, aspect ratios and partial occlusions, especially when face images were captured in wild conditions. To address this problem, conventional face alignment methods extract local features and then directly concatenate these features for global shape regression. Unlike these methods which cannot explicitly model the correlation of neighbouring landmarks and motivated by the fact that individual landmarks are usually correlated, in this paper, we propose a deep structural and sharable detectors (DSSD) method for facial landmark localization...
January 23, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28113308/webly-supervised-fine-grained-visual-categorization-via-deep-domain-adaptation
#6
Zhe Xu, Shaoli Huang, Ya Zhang, Dacheng Tao
Learning visual representations from web data has recently attracted attention for object recognition. Previous studies have mainly focused on overcoming label noise and data bias and have shown promising results by learning directly from web data. However, we argue that it might be better to transfer knowledge from existing human labeling resources to improve performance at nearly no additional cost. In this paper, we propose a new semi-supervised method for learning via web data. Our method has the unique design of exploiting strong supervision, i...
December 8, 2016: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/28113236/accurate-physics-based-registration-for-the-outcome-validation-of-minimal-invasive-interventions-and-open-liver-surgeries
#7
Cristina Laura, Klaus Drechsler, Stefan Wesarg, Reto Bale
OBJECTIVE: The purpose of this paper is to present an outcome validation tool for tumor radio frequency ablation and resection. METHODS: Intervention assessment tools require an accurate registration of both pre- and postoperative computed tomographies able to handle big deformations. Therefore, a physics based method is proposed with that purpose. To increase the accuracy both automatically detected internal and surface physical landmarks are incorporated in the registration process...
April 27, 2016: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28113190/accurate-physics-based-registration-for-the-outcome-validation-of-minimal-invasive-interventions-and-open-liver-surgeries
#8
Cristina Oyarzun Laura, Klaus Drechsler, Stefan Wesarg, Reto Bale
OBJECTIVE: The purpose of this paper is to present an outcome validation tool for tumor radiofrequency (RF) ablation and resection. METHODS: Intervention assessment tools require an accurate registration of both pre- and postoperative computed tomographies able to handle big deformations. Therefore, a physics-based method is proposed with that purpose. To increase the accuracy both automatically detected internal and surface physical landmarks are incorporated in the registration process...
February 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28108406/berry-s-ligament-and-the-inferior-thyroid-artery-as-reliable-anatomical-landmarks-for-the-recurrent-laryngeal-nerve-rln-a-fresh-cadaveric-study-of-the-cervical-spine-the-rln-relevant-to-spine
#9
Ali Rajabian, Michael Walsh, Nasir A Quraishi
BACKGROUND CONTEXT: Although most cadaveric studies of the Recurrent Laryngeal Nerve (RLN) have focused on course variations, they have usually been done on preserved (fixed and embalmed) cadavers, which renders the RLN immobile and of less surgical landmark value. PURPOSE: Our aim was to perform a thorough exposure in fresh cadavers, with the intention of investigating the Inferior Thyroid Artery (ITA) and Berry's ligament as reliable landmarks for the identification of the RLN in anterior cervical spine surgery...
March 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28103558/effective-multi-query-expansions-collaborative-deep-networks-for-robust-landmark-retrieval
#10
Yang Wang, Xuemin Lin, Lin Wu, Wenjie Zhang
Given a query photo issued by a user (q-user), the landmark retrieval is to return a set of photos with their landmarks similar to those of the query, while the existing studies on the landmark retrieval focus on exploiting geometries of landmarks for similarity matches between candidate photos and a query photo. We observe that the same landmarks provided by different users over social media community may convey different geometry information depending on the viewpoints and/or angles, and may, subsequently, yield very different results...
March 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28093049/efficient-variational-approach-to-multimodal-registration-of%C3%A2-anatomical%C3%A2-and%C3%A2-functional-intra-patient-tumorous-brain-data
#11
Alvar-Ginés Legaz-Aparicio, Rafael Verdú-Monedero, Jorge Larrey-Ruiz, Juan Morales-Sánchez, Fernando López-Mir, Valery Naranjo, Ángela Bernabéu
This paper addresses the functional localization of intra-patient images of the brain. Functional images of the brain (fMRI and PET) provide information about brain function and metabolism whereas anatomical images (MRI and CT) supply the localization of structures with high spatial resolution. The goal is to find the geometric correspondence between functional and anatomical images in order to complement and fuse the information provided by each imaging modality. The proposed approach is based on a variational formulation of the image registration problem in the frequency domain...
November 29, 2016: International Journal of Neural Systems
https://www.readbyqxmd.com/read/28066627/survival-analyses-in-lung-cancer
#12
EDITORIAL
Kari Chansky, Dragan Subotic, Nathan R Foster, Torsten Blum
BACKGROUND: Although survival analyses represent one of the cornerstones in oncology in general, some aspects of the reported survival data in lung cancer patients are still not fully elucidated. METHODS: After having defined several open questions, an evidence based approach was applied in order to answer these questions. Areas of interest were: (I) possible uncertainties in reported survival data; (II) survival surrogates; (III) recommended methods for evaluating progression free survival (PFS) as a surrogate endpoint in future datasets; (IV) postoperative lung cancer recurrence and survival...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28058863/what-should-clinicians-know-about-the-use-of-glucocorticoids-in-systemic-sclerosis
#13
Michele Iudici
Glucocorticoids (GC) are drugs largely used by rheumatologists, but their utilization in systemic sclerosis (SSc) is still controversial for both the lack of evidence of their usefulness and the physicians and patients' concern about their related adverse events. Due to the rarity and the complexity of the disease, few studies investigating the role of GC in SSc have been performed. Thus, a huge variability in corticosteroid prescriptive practice among physicians involved in the care of SSc patients still exists worldwide...
January 6, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28027916/vitamin-d-in-saudi-arabia-prevalence-distribution-and-disease-associations
#14
REVIEW
Nasser M Al-Daghri
More than 33 years have passed since the first paper highlighting vitamin D deficiency as a public health concern in Saudi Arabia was published in 1983. Despite "early" detection,it wasn't until the year 2010 where the interest in vitamin D research grew exponentially worldwide and was finally visible in Saudi clinical and academic areas. Since then,many landmark studies have been generated with regards to the physiologic functions of vitamin D,both skeletal and extra-skeletal. This review is limited to the prevalence,distribution A systematic review on the prevalence studies done in KSA from 2011 to 2016 was done and revealed that the prevalence of vitamin D deficiency (<50nmol/l) in Saudi Arabia among different populations (adults,children and adolescents,newborns and pregnant/lactating women) is 81...
December 24, 2016: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28018895/regional-differences-in-end-diastolic-volumes-between-3d-echo-and-cmr-in-hlhs-patients
#15
Alberto Gomez, Ozan Oktay, Daniel Rueckert, Graeme P Penney, Julia A Schnabel, John M Simpson, Kuberan Pushparajah
Ultrasound is commonly thought to underestimate ventricular volumes compared to magnetic resonance imaging (MRI), although the reason for this and the spatial distribution of the volume difference is not well understood. In this paper, we use landmark-based image registration to spatially align MRI and ultrasound images from patients with hypoplastic left heart syndrome and carry out a qualitative and quantitative spatial comparison of manual segmentations of the ventricular volume obtained from the respective modalities...
2016: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/27999403/monitoring-building-deformation-with-insar-experiments-and-validation
#16
Kui Yang, Li Yan, Guoman Huang, Chu Chen, Zhengpeng Wu
Synthetic Aperture Radar Interferometry (InSAR) techniques are increasingly applied for monitoring land subsidence. The advantages of InSAR include high accuracy and the ability to cover large areas; nevertheless, research validating the use of InSAR on building deformation is limited. In this paper, we test the monitoring capability of the InSAR in experiments using two landmark buildings; the Bohai Building and the China Theater, located in Tianjin, China. They were selected as real examples to compare InSAR and leveling approaches for building deformation...
December 20, 2016: Sensors
https://www.readbyqxmd.com/read/27995390/the-three-decade-long-journey-in-heart-failure-drug-development
#17
Kelly S Lewis, Javed Butler, Johann Bauersachs, Peter Sandner
Heart failure is a global disease with increasing prevalence due to an aging worldwide population with increasing co-morbidities. Despite several therapeutic options available to treat HFrEF, morbidity and mortality remain high. Importantly, no approved therapies are available to treat HFpEF. This paper will briefly summarize the burden of disease, HF classification and definitions and the landmark clinical trials in both HFrEF and HFpEF. Given the increasing incidence and prevalence of HF and the high morbidity and mortality associated with this disease, continued development efforts are essential to address the unmet needs of these patients...
December 20, 2016: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/27993606/classification-of-navigation-impairment-a-systematic-review-of-neuropsychological-case-studies
#18
REVIEW
Michiel H G Claessen, Ineke J M van der Ham
The neurocognitive architecture of navigation ability has been investigated by extensively studying the navigation problems of individual neurological patients. These neuropsychological case reports have applied highly variable approaches to establish navigation impairment in their patients. This review provides a systematic and up-to-date inventory of all relevant case studies and presents an analysis of the types of navigation impairments that have been described. The systematic literature search revealed 58 relevant papers reporting on 67 neurological patients...
February 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/27993480/bokhman-redux-endometrial-cancer-types-in-the-21st-century
#19
Adrian A Suarez, Ashley S Felix, David E Cohn
In 1983 Jan V. Bokhman, M.D. published a landmark paper entitled "Two Pathogenetic Types of Endometrial Carcinoma" in which an enduring dualistic view of endometrial cancer was first proposed. "Type I" cancers are thought to represent estrogen driven mostly low grade endometrioid tumors strongly associated with obesity and other components of the metabolic syndrome. "Type II" cancers represent higher grade non-endometrioid tumors for which the latter associations are less significant. Basic tenets of this dichotomy including significant prognostic differences have been abundantly confirmed by later literature...
December 16, 2016: Gynecologic Oncology
https://www.readbyqxmd.com/read/27981065/art-3-5d-an-algorithm-to-label-arteries-and-veins-from-three-dimensional-angiography
#20
Beatrice Barra, Elena De Momi, Giancarlo Ferrigno, Guglielmo Pero, Francesco Cardinale, Giuseppe Baselli
Preoperative three-dimensional (3-D) visualization of brain vasculature by digital subtraction angiography from computerized tomography (CT) in neurosurgery is gaining more and more importance, since vessels are the primary landmarks both for organs at risk and for navigation. Surgical embolization of cerebral aneurysms and arteriovenous malformations, epilepsy surgery, and stereoelectroencephalography are a few examples. Contrast-enhanced cone-beam computed tomography (CE-CBCT) represents a powerful facility, since it is capable of acquiring images in the operation room, shortly before surgery...
October 2016: Journal of Medical Imaging
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