11,741 results match your criteria data augmentation


A 'Giving way' captured during walking by gyroscopes and plantar force sensors.

J Biomech 2021 Sep 17;129:110754. Epub 2021 Sep 17.

Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan. Electronic address:

'Giving way' is a rapid inversion of the rear part of the foot, which does not result in an acute lateral ankle sprain. It is a specific event for patients with chronic ankle instability (CAI). This report described a 'giving way' in an 18-year-old female with CAI, which was biomechanically captured during walking on the flat surface. Read More

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September 2021

Simultaneous use of high volume Foley catheter (60 ml) and misoprostol for labor induction in nulliparous women: A randomized controlled trial.

Int J Gynaecol Obstet 2021 Sep 24. Epub 2021 Sep 24.

Department of Obstetrics & Gynecology, Dr Rajendra Prasad Government Medical College, Kangra at Tanda (HP), India.

Objective: To examine the simultaneous effect of high-volume Foley catheter [HVFC] (60 ml) & vaginal misoprostol, on labor induction in nulliparous women.

Methods: A randomized, double blind, controlled trial was conducted among nulliparous post date (>40 weeks POG) pregnant women between June to December 2019. At enrolment 100 women were randomized into each group [either HVFC & vaginal misoprostol or low volume Foley catheter [LVFC] (30 ml) & vaginal misoprostol], for labor induction. Read More

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September 2021

Risk factors for obstetric anal sphincter injuries recurrence: a systematic review and meta-analysis.

Int J Gynaecol Obstet 2021 Sep 24. Epub 2021 Sep 24.

ASST Monza, San Gerardo Hospital, Monza, Italy.

Background: Women with previous obstetric anal sphincter injuries (OASIs) are at higher risk to suffer from a recurrence in the subsequent pregnancy which may lead to the development or worsening of anal incontinence. Due to lack of evidence, few recommendations can be made about the factors that may affect the risk of OASIs recurrence.

Objective: We sought to conduct a systematic review and meta-analysis to investigate potential risk factors for recurrent OASIs. Read More

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September 2021

Radiomics for detecting prostate cancer bone metastases invisible in CT: a proof-of-concept study.

Eur Radiol 2021 Sep 24. Epub 2021 Sep 24.

Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, University of Zurich, Raemistr. 100, CH-8091, Zurich, Switzerland.

Objectives: To investigate, in patients with metastatic prostate cancer, whether radiomics of computed tomography (CT) image data enables the differentiation of bone metastases not visible on CT from unaffected bone using  Ga-PSMA PET imaging as reference standard.

Methods: In this IRB-approved retrospective study, 67 patients (mean age 71 ± 7 years; range: 55-84 years) showing a total of 205  Ga-PSMA-positive prostate cancer bone metastases in the thoraco-lumbar spine and pelvic bone being invisible in CT were included. Metastases and 86  Ga-PSMA-negative bone volumes in the same body region were segmented and further post-processed. Read More

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September 2021

TGSA: Protein-Protein Association-Based Twin Graph Neural Networks for Drug Response Prediction with Similarity Augmentation.

Bioinformatics 2021 Sep 24. Epub 2021 Sep 24.

Department of Ophthalmology of the Second Affiliated Hospital School of Medicine and School of Public Health, Zhejiang University, Hangzhou, 310000, China.

Motivation: Drug response prediction (DRP) plays an important role in precision medicine (e.g., for cancer analysis and treatment). Read More

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September 2021

Scapholunate and lunotriquetral interosseous ligament augmentation with internal bracing in perilunate dislocation: Case reports.

Medicine (Baltimore) 2021 Sep;100(38):e26827

Department of Orthopaedic Surgery, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.

Rationale: The goals of surgical treatment of the perilunate dislocation (PLD) are confirmation of reduction, ligament repair, and supplemental fixation of the bony architecture. Open reduction and direct repair of the torn ligament are recommended for acute PLD. However, repair of the scapholunate interosseous ligament (SLIL) and lunotriquetral interosseous ligament (LTIL) is often unreliable, and secure repair is challenging. Read More

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September 2021

Management of sinus graft infection-a systematic review.

Int J Oral Maxillofac Surg 2021 Sep 20. Epub 2021 Sep 20.

Université de Lille, CHU Lille, INSERM, Service de Chirurgie Maxillo-Faciale et Stomatologie, U1008 - Controlled Drug Delivery Systems and Biomaterial, Lille, France.

Sinus graft infections are rare but serious complications, as they are associated with significant morbidity and sinus graft loss. The aim of this study was to systematically review the management of sinus graft infection in order to define which protocols should be implemented. The terms searched in each database were "sinus graft infection management", "maxillary sinus lift infection", "maxillary sinus graft infection", "maxillary sinus elevation infection", and "maxillary sinus augmentation infection". Read More

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September 2021

An Intelligent Method for Predicting the Pressure Coefficient Curve of Airfoil-Based Conditional Generative Adversarial Networks.

IEEE Trans Neural Netw Learn Syst 2021 Sep 23;PP. Epub 2021 Sep 23.

Recently, extensive studies have focused on analyzing aerodynamic performance due to its important impact on aircraft design. Most of these works compute the aerodynamic coefficient of the airfoil through computational fluid dynamics (CFD) simulation, which is too time-consuming. To reduce the computational time required, some intelligence-based methods have been presented. Read More

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September 2021

Utilization and Expenditures of Vertebral Augmentation Continue to Decline: An Analysis in Fee-For-Service (FFS) Recipients from 2009 to 2018.

Pain Physician 2021 Sep;24(6):401-415

Massachusetts General Hospital and Harvard Medical School, Boston, MA.

Background: Despite the high prevalence of vertebral compression fractures (VCFs) associated with refractory pain, deformity, or progressive neurological symptoms, minimally invasive vertebral augmentation procedures, including vertebroplasty and kyphoplasty, have been declining in their relative utilization, along with expenditures.

Objectives: This investigation was undertaken to assess utilization and expenditures for vertebral augmentation procedures, including vertebroplasty and kyphoplasty, in the fee-for-service (FFS) Medicare population from 2009 to 2018.

Study Design: The present study was designed to assess utilization and expenditures in all settings, for all providers in the FFS Medicare population from 2009 to 2018 in the United States. Read More

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September 2021

A virtual clinical feasibility study for the indication of one-piece ceramic implants in the anterior maxilla.

Int J Comput Dent 2021 Sep;24(3):263-273

Aim: One-piece ceramic implants (O-PCIs) have proven to be clinically useful, with high survival rates. The biocompatibility and bio-inert characteristics of ceramics in addition to the fact that minimal plaque deposits occur on these materials provide esthetic advantages and justification for their use in the anterior maxilla. The objective of the present study was to investigate the suitability of O-PCI use in the anterior maxilla. Read More

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September 2021

Evaluating Deep Neural Network Architectures with Transfer Learning for Pneumonitis Diagnosis.

Comput Math Methods Med 2021 12;2021:8036304. Epub 2021 Sep 12.

Department of Computer Science and Information Engineering, National Yunlin University of Science and Technology, Yunlin 64002, Taiwan.

Pneumonitis is an infectious disease that causes the inflammation of the air sac. It can be life-threatening to the very young and elderly. Detection of pneumonitis from X-ray images is a significant challenge. Read More

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September 2021

Paradoxical Augmentation of Experimental Spondyloarthritis by RORC Inhibition in HLA-B27 Transgenic Rats.

Front Immunol 2021 6;12:699987. Epub 2021 Sep 6.

Department of Clinical Immunology and Rheumatology, Amsterdam Rheumatology & Immunology Center (ARC), Amsterdam University Medical Centers (UMC), Location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands.

Objective: IL-17A plays a major role in the pathogenesis of spondyloarthritis (SpA). Here we assessed the impact of inhibition of RAR related orphan receptor-γ (RORC), the key transcription factor controlling IL-17 production, on experimental SpA in HLA-B27 transgenic (tg) rats.

Methods: Experimental SpA was induced by immunization of HLA-B27 tg rats with heat-inactivated . Read More

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September 2021

Role of Fracture Liaison Service Program in Reducing Refracture Rate in the Elderly Osteoporotic Trauma Patients Presenting With Vertebral Compression Fracture: A Six-Year Study.

Am Surg 2021 Sep 22:31348211047512. Epub 2021 Sep 22.

Michigan Neurosurgical Institute, Grand Blanc, MI, USA.

Introduction: As the elderly population of the United States and the world increases, so does the incidence of osteoporotic fragility fractures from a fall or minor injury. This results in a large cost to the health care system. This cost is further increased as more than 50% of individuals will have refractures within the first year. Read More

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September 2021

Vertical and horizontal ridge augmentation using customized CAD/CAM titanium mesh with versus without resorbable membranes. A randomized clinical trial.

Clin Oral Implants Res 2021 Sep 22. Epub 2021 Sep 22.

Department of Biomedical and Neuromotor Science (DIBINEM), University of Bologna, Bologna, Italy.

Objectives: The aim was to evaluate the role of resorbable membranes applied over customized titanium meshes related to soft tissue healing and bone regeneration after vertical/horizontal bone augmentation.

Materials And Methods: Thirty patients with partial edentulism of the maxilla/mandible, with vertical/horizontal reabsorption of the alveolar bone, and needing implant-supported restorations, were randomly divided into two groups: Group A was treated using only custom-made meshes (Mesh-); Group B using custom-made meshes with cross-linked collagen membranes (Mesh+). Data collection included: surgical and healing complications, "pseudo-periosteum" thickness, bone density, planned bone volume (PBV), regenerated bone volume (RBV), regeneration rate (RR), vertical bone gain (VBG), and implant survival in regenerated areas. Read More

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September 2021

Modern Fat Grafting Techniques to the Face and Neck.

Plast Reconstr Surg 2021 Oct;148(4):620e-633e

From the Division of Plastic Surgery, Department of Surgery, University of Pennsylvania.

Learning Objectives: After studying this article, the participant should be able to: 1. Understand age-related changes to the face and neck and pertinent anatomy and discuss important aspects of fat graft harvesting, processing, and infiltration. 2. Read More

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October 2021

Pragmatic Precision Psychiatry-A New Direction for Optimizing Treatment Selection.

JAMA Psychiatry 2021 Sep 22. Epub 2021 Sep 22.

Department of Statistics, University of Washington, Seattle, Washington.

Importance: Clinical trials have identified numerous prescriptive predictors of mental disorder treatment response, ie, predictors of which treatments are best for which patients. However, none of these prescriptive predictors is strong enough alone to guide precision treatment planning. This has prompted growing interest in developing precision treatment rules (PTRs) that combine information across multiple prescriptive predictors, but this work has been much less successful in psychiatry than some other areas of medicine. Read More

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September 2021

[Vasoprotective effects hypotensive therapy in patients with coronary heart disease combined with chronic kidney disease stage 2-3 after coronary stenting].

Kardiologiia 2021 Aug 31;61(8):14-22. Epub 2021 Aug 31.

Kursk State Medical University, Kursk.

Aim      To study the condition of coronary vasculature by data of coronarography (CG) in patients with chronic ischemic heart disease (IHD) and arterial hypertension (AH) associated with stage 2-4 chronic kidney disease (CKD) and to evaluate the effect of a 12-week complex treatment with perindopril or with a combination of perindopril/amlodipine on changes in vascular wall stiffness, endothelial function, and structure and function parameters in this patient category after coronary stenting.Material and methodsr This study included 87 patients with chronic IHD and AH associated with stage 2-3 CKD for whom CG was performed due to ineffectiveness of the antianginal therapy. The patients were divided into three subgroups: subgroup 1 included 28 patients who received a conservative treatment with perindopril 10 mg/day; subgroup 2 consisted of 25 patients who underwent coronary stenting and were prescribed perindopril; subgroup 3 consisted of 34 patients who underwent stenting and were prescribed the perindopril/amlodipine combination. Read More

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Essential jobs, remote work and digital surveillance: addressing the COVID-19 pandemic panopticon.

Int Labour Rev 2021 Jun 19. Epub 2021 Jun 19.

KU Leuven the University of Leuven.

COVID-19-induced digital surveillance has ballooned in an unprecedented fashion, causing a reconfiguration of power relationships in professional settings. This article critically concentrates on the interplay between technology-enabled intrusive monitoring and the managerial prerogatives augmentation in physical and digital workplaces. It portrays excessive control as the common denominator for "essential" and "remotable" activities, besides discussing the various drawbacks of the two categories of workers during the pandemic. Read More

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NAD augmentation with nicotinamide riboside improves lymphoid potential of Atm and old mice HSCs.

NPJ Aging Mech Dis 2021 Sep 21;7(1):25. Epub 2021 Sep 21.

Epigenetics and Stem Cell Unit, Translational Gerontology Branch, National Institute on Aging, NIH, Baltimore, MD, 21224, USA.

NAD supplementation has significant benefits in compromised settings, acting largely through improved mitochondrial function and DNA repair. Elevating NAD to physiological levels has been shown to improve the function of some adult stem cells, with implications that these changes will lead to sustained improvement of the tissue or system. Here, we examined the effect of elevating NAD levels in models with reduced hematopoietic stem cell (HSC) potential, ATM-deficient and aged WT mice, and showed that supplementation of nicotinamide riboside (NR), a NAD precursor, improved lymphoid lineage potential during supplementation. Read More

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September 2021

Histologic Findings 8 Weeks After Customized Alveolar Ridge-Splitting Technique.

Int J Periodontics Restorative Dent 2021 Sep-Oct;41(5):e191-e198

Different techniques have been introduced when replacement with an implant is planned after tooth extraction. The conventional approach consists of waiting 3 to 4 months before implant placement. However, many other options are available for implant placement, including immediate implant placement (IIP), IIP and immediate provisionalization (IIPIP), and early implant placement (EIP). Read More

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September 2021

SCONES: Self-Consistent Neural Network for Protein Stability Prediction Upon Mutation.

J Phys Chem B 2021 Sep 21. Epub 2021 Sep 21.

Center for Computational Natural Sciences and Bioinformatics, International Institute of Information Technology, Hyderabad 500 032, India.

Engineering proteins to have desired properties by mutating amino acids at specific sites is commonplace. Such engineered proteins must be stable to function. Experimental methods used to determine stability at throughputs required to scan the protein sequence space thoroughly are laborious. Read More

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September 2021

Multi-Disease Detection in Retinal Imaging Based on Ensembling Heterogeneous Deep Learning Models.

Stud Health Technol Inform 2021 Sep;283:23-31

IT-Infrastructure for Translational Medical Research, University of Augsburg, Augsburg, Germany.

Preventable or undiagnosed visual impairment and blindness affect billion of people worldwide. Automated multi-disease detection models offer great potential to address this problem via clinical decision support in diagnosis. In this work, we proposed an innovative multi-disease detection pipeline for retinal imaging which utilizes ensemble learning to combine the predictive capabilities of several heterogeneous deep convolutional neural network models. Read More

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September 2021

Robustness of deep learning segmentation of cardiac substructures in non-contrast computed tomography for breast cancer radiotherapy.

Med Phys 2021 Sep 20. Epub 2021 Sep 20.

Department of Radiation Oncology, Washington University in St Louis School of Medicine, St. Louis, Missouri.

Purpose: To develop and evaluate deep learning based auto-segmentation of cardiac substructures from non-contrast planning computed tomography (CT) images in patients undergoing breast cancer radiotherapy and to investigate the algorithm sensitivity to out-of-distribution data such as CT image artifacts.

Methods: Nine substructures including Aortic Valve (AV), Left Anterior Descending (LAD), Tricuspid Valve (TV), Mitral Valve (MV), Pulmonic Valve (PV), Right Atrium (RA), Right Ventricle (RV), Left Atrium (LA) and Left Ventricle (LV) were manually delineated by a radiation oncologist on non-contrast CT images of 129 patients with breast cancer; among them 90 were considered in-distribution data, also named 'clean' data. The image/label pairs of 60 subjects were used to train a 3D deep neural network while the remaining 30 were used for testing. Read More

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September 2021

Robustifying Deep Networks for Medical Image Segmentation.

J Digit Imaging 2021 Sep 20. Epub 2021 Sep 20.

Department of Statistics, University of Wisconsin, Madison, WI, USA.

The purpose of this study is to investigate the robustness of a commonly used convolutional neural network for image segmentation with respect to nearly unnoticeable adversarial perturbations, and suggest new methods to make these networks more robust to such perturbations. In this retrospective study, the accuracy of brain tumor segmentation was studied in subjects with low- and high-grade gliomas. Two representative UNets were implemented to segment four different MR series (T1-weighted, post-contrast T1-weighted, T2-weighted, and T2-weighted FLAIR) into four pixelwise labels (Gd-enhancing tumor, peritumoral edema, necrotic and non-enhancing tumor, and background). Read More

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September 2021

Gastrointestinal Tract Disease Classification from Wireless Endoscopy Images Using Pretrained Deep Learning Model.

Comput Math Methods Med 2021 11;2021:5940433. Epub 2021 Sep 11.

Department of Computer Science, Ambo University, Ambo University, Ambo, Post Box No.: 19, Ethiopia.

Wireless capsule endoscopy is a noninvasive wireless imaging technology that becomes increasingly popular in recent years. One of the major drawbacks of this technology is that it generates a large number of photos that must be analyzed by medical personnel, which takes time. Various research groups have proposed different image processing and machine learning techniques to classify gastrointestinal tract diseases in recent years. Read More

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September 2021

Deep Learning and Its Application to Function Approximation for MR in Medicine: An Overview.

Magn Reson Med Sci 2021 Sep 17. Epub 2021 Sep 17.

Advanced Technology Research Department, Research and Development Center, Canon Medical Systems Corporation.

This article presents an overview of deep learning (DL) and its applications to function approximation for MR in medicine. The aim of this article is to help readers develop various applications of DL. DL has made a large impact on the literature of many medical sciences, including MR. Read More

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September 2021

It's a worm-eat-worm world: Consumption of parasite free-living stages protects hosts and benefits predators.

J Anim Ecol 2021 Sep 20. Epub 2021 Sep 20.

Department of Ecology and Evolutionary Biology, University of Colorado at Boulder, Boulder, CO, USA.

Predation on parasites is a common interaction with multiple, concurrent outcomes. Free-living stages of parasites can comprise a large portion of some predators' diets and may be important resources for population growth. Predation can also reduce the density of infectious agents in an ecosystem, with resultant decreases in infection rates. Read More

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September 2021

The utility of color normalization for AI-based diagnosis of hematoxylin and eosin-stained pathology images.

J Pathol 2021 Sep 20. Epub 2021 Sep 20.

School of Biomedical Engineering, University of British Columbia, Vancouver, British Columbia, Canada.

The color variation of hematoxylin and eosin (H&E)-stained tissues has presented a challenge for applications of artificial intelligence (AI) in digital pathology. Many color normalization algorithms have been developed in recent years in order to reduce the color variation between H&E images. However, previous efforts in benchmarking these algorithms have produced conflicting results and none have sufficiently assessed the efficacy of the various color normalization methods for improving diagnostic performance of AI systems. Read More

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September 2021

Assessment of Silicone Particle Migration Among Women Undergoing Removal or Revision of Silicone Breast Implants in the Netherlands.

JAMA Netw Open 2021 Sep 1;4(9):e2125381. Epub 2021 Sep 1.

Department of Pathology, Radboud University Medical Center, Nijmegen, the Netherlands.

Importance: Silicone breast implants have been on the market for breast augmentation or breast reconstruction for approximately 60 years but may lead to medical complications, also called breast implant illness.

Objective: To evaluate the existence of silicone gel bleed and migration over a long time period, including the period in which the newer cohesive silicone gel breast implants were used.

Design, Setting, And Participants: In this single-center case series, capsule tissue and lymph node samples were collected from women who underwent removal or revision of silicone breast implants from January 1, 1986, to August 18, 2020, and data were extracted from the pathological reports and revision of the histology if data were missing. Read More

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September 2021

Software system to predict the infection in COVID-19 patients using deep learning and web of things.

Softw Pract Exp 2021 Jun 24. Epub 2021 Jun 24.

ECED Thapar Institute of Engineering and Technology Patiala India.

Since the end of 2019, computed tomography (CT) images have been used as an important substitute for the time-consuming Reverse Transcriptase polymerase chain reaction (RT-PCR) test; a new coronavirus 2019 (COVID-19) disease has been detected and has quickly spread through many countries across the world. Medical imaging such as computed tomography provides great potential due to growing skepticism toward the sensitivity of RT-PCR as a screening tool. For this purpose, automated image segmentation is highly desired for a clinical decision aid and disease monitoring. Read More

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