Advances in the Application of the Dual Fluoroscopic Imaging System in Sports Medicine: A Literature Review

2021 ◽  
Vol 11 (8) ◽  
pp. 2067-2076
Author(s):  
Cui Zhang ◽  
Xiaole Sun ◽  
Yunqi Tang ◽  
Shaobai Wang ◽  
Dongqiang Ye ◽  
...  
Keyword(s):  
Sports Medicine ◽  
Soft Tissues ◽  
Imaging System ◽  
Relevant Literature ◽  
Test Results ◽  
Non Invasive ◽  
Ligament Strain ◽  
Fluoroscopic Imaging ◽  
Analysis System ◽  
Six Degree Of Freedom

The dual fluoroscopic imaging system (DFIS) is a new non-invasive motion analysis system that does not interfere with movement, has high precision and repeatability and is not affected by the errors caused by the relative movement of skin and soft tissues. DFIS has been recently used in the field of sports medicine. This narrative review focuses on relevant literature on the origin, development and mechanism of action of DFIS and summarises the application of DFIS in injury and rehabilitation treatment, such as the reliability of test results; the position relationships of bony structures in the shoulder, lumbar spine, knee joint and ankle joint during exercise and its six degree-of-freedom (6DOF) movement to calculate cartilage deformation, contact area/trajectory and ligament strain. This article puts forward the problems encountered in practice that need to be solved and looks forward to the future applications of DFIS in the field of sports, especially in injury prevention and treatment.

SIGN IN Welcome!Log into your account your username your password Forgot your password Privacy policy PASSWORD RECOVERY Recover your password your email Struktol Home New fast measuring method for process optimization of sucrose crystallization New fast measuring method for process optimization of sucrose crystallization

2020 ◽  
pp. 49-52
Author(s):  
Trine Aabo Andersen
Keyword(s):  
Image Analysis ◽  
Process Optimization ◽  
Crystal Size ◽  
Measuring Method ◽  
Sieve Analysis ◽  
Image Analysis System ◽  
Line System ◽  
Non Invasive ◽  
Analysis System ◽  
User Friendly

A new fast measuring method for process optimization of sucrose crystallization using image analysis based on high quality images and algorithms is introduced. With the mobile, non-invasive at-line system all steps of the sucrose crystallization can be measured to determine the crystal size distribution. The image analysis system is easy to operate and is as well an efficient laboratory solution with user-friendly and customized software. In comparison to sieve analysis, image analyses performed with the ParticleTech Solution have been proven to be reliable.

scholarly journals Simultaneous Feulgen densitometry and autoradiographic grain counting with the Quantimet 720D image-analysis system. III. Improvements in Feulgen densitometry.

1983 ◽  
Vol 31 (10) ◽  
pp. 1224-1232 ◽  
Author(s):  
R J Sklarew
Keyword(s):  
Image Analysis ◽  
Imaging System ◽  
Rat Kidney ◽  
Light Sources ◽  
Kidney Cells ◽  
Image Analysis System ◽  
Replication Error ◽  
Feulgen Densitometry ◽  
Optical Configuration ◽  
Analysis System

A method has been developed for densitometric estimation of the Feulgen-stained DNA content of 3H-labeled nuclei in autoradiographs in conjunction with automated grain counting using a Quantimet Imaging System. Refinements in the methodology are reported which include 1) the incorporation of an Image-Editor Module into the Quantimet module configuration; 2) the optimization of incident illumination based upon evaluation of various light sources; 3) changes in the optical configuration which reduce glare and minimize the level of monitor shading correction; 4) the optimization of scanner sensitivity; and 5) the evaluation of cell-flattening and staining with respect to densitometry resolution and sensitivity. These refinements resulted in a CV of less than 6.4% in the G-1 and G-2 DNA peaks of rat kidney cells in autoradiographs compared to the previous CV of 10.5%, and a G-2 to G-1 ratio of 2.025. For a fixed field position the CV was 5.1% and the replication error less than 1.0%.

A Technique for Measuring Absolute Toe Pressures: Evaluation of Pressure-Sensitive Film Techniques

Foot & Ankle ◽  
1992 ◽  
Vol 13 (4) ◽  
pp. 220-223 ◽  
Author(s):  
Alan S. Tuckman ◽  
Frederick W. Werner ◽  
Maria D. Fortino ◽  
Joseph A. Spadaro
Keyword(s):  
Soft Tissues ◽  
Flat Surface ◽  
Imaging System ◽  
Accurate Method ◽  
Total Force ◽  
Confined Space ◽  
Pressure Sensitive ◽  
Sensitive Film ◽  
Pressure Sensitive Film ◽  
Deforming Forces

Although a number of pathologies of the forefoot in ballet dancers on pointe have been described, pressures and deforming forces have not been adequately measured. To evaluate the possible use of pressure-sensitive film (PSF) in measuring the pressures on the external soft tissues in such a confined space as the dancer's toe shoe, it was tested and calibrated with 20 cadaver toes. Each cadaver toe was internally stabilized and loaded longitudinally against PSF on a flat surface. The resultant films were analyzed with a video imaging system and the pressures and total forces were determined. Results showed that the linearity of the PSF to pressure had a regression value of 0.98. By using two sensitivity ranges of films, the total force measured by the PSF was found to be within 10% of the known applied force on each toe. The PSF, therefore, may very well be a useful and accurate method of measuring external soft tissue pressures on the forefoot.

scholarly journals Retinal functional imager (RFI): Non-invasive functional imaging of the retina

2013 ◽  
Vol 5 (2) ◽  
pp. 250-257 ◽  
Author(s):  
Sunil Ganekal
Keyword(s):  
Functional Imaging ◽  
Structural Changes ◽  
Imaging System ◽  
Retinal Blood Flow ◽  
Capillary Perfusion ◽  
Functional Changes ◽  
Non Invasive ◽  
Retinal Disorders ◽  
Retinal Blood Flow Velocity ◽  
Perfusion Maps

Retinal functional imager (RFI) is a unique non-invasive functional imaging system with novel capabilities for visualizing the retina. The objective of this review was to show the utility of non-invasive functional imaging in various disorders. Electronic literature search was carried out using the websites www.pubmed.gov and www.google.com. The search words were retinal functional imager and non-invasive retinal imaging used in combination. The articles published or translated into English were studied. The RFI directly measures hemodynamic parameters such as retinal blood-flow velocity, oximetric state, metabolic responses to photic activation and generates capillary perfusion maps (CPM) that provides retinal vasculature detail similar to flourescein angiography. All of these parameters stand in a direct relationship to the function and therefore the health of the retina, and are known to be degraded in the course of retinal diseases. Detecting changes in retinal function aid early diagnosis and treatment as functional changes often precede structural changes in many retinal disorders. Nepal J Ophthalmol 2013; 5(10): 250-257 DOI: http://dx.doi.org/10.3126/nepjoph.v5i2.8738

scholarly journals Pyelonephritis can be a source of a life threatening necrotizing myofasciitis

2014 ◽  
Vol 8 (5-6) ◽  
pp. 462
Author(s):  
Haytham Kamel ◽  
Mohamed Soliman Edris Awed ◽  
Ahmed Fouad Kotb
Keyword(s):  
Necrotizing Fasciitis ◽  
Adult Male ◽  
Soft Tissues ◽  
Subcutaneous Tissue ◽  
Relevant Literature ◽  
Deep Fascia ◽  
Necrotizing Myositis ◽  
Life Threatening

Necrotizing fasciitis is a progressive, rapidly spreading, inflammatory infection located in deep fascia. It may cause necrosis of skin and subcutaneous tissue and can even result in involvement of adjacent soft tissues such as muscles resulting in necrotizing myositis. We report the case of an adult male presenting with necrotizing myofasciitis secondary to left pyelonephritis. We also review the relevant literature.

scholarly journals Secretion management in patients with ineffective airway clearance with non-invasive mechanical ventilation use: Expert guidance for clinical practice

2021 ◽  
Author(s):  
Vijay Hadda ◽  
Tejas Menon Suri ◽  
Sourabh Pahuja ◽  
Mohamad El-Khatib ◽  
Laura D. Ciobanu ◽  
...  
Keyword(s):  
Electronic Mail ◽  
Neuromuscular Disorders ◽  
Relevant Literature ◽  
Invasive Mechanical Ventilation ◽  
Non Invasive ◽  
Airway Clearance ◽  
Non Invasive Ventilation ◽  
Airway Secretion ◽  
Secretion Clearance

Non-invasive ventilation (NIV) is a mainstay of management of chronic respiratory failure in many disorders which are known to cause abnormal airway secretion clearance. Currently, there is no guidance regarding either the secretion handling during NIV use or the role of NIV in secretion management in these patients. The aim of this document was to provide an overview of the various techniques available in the management of respiratory secretions and their use in conjunction with NIV. Literature search was performed using the keywords, “(secretion OR secretions) AND (noninvasive ventilation OR NIV)” on PubMed and EMBASE. The search yielded 1681 and 509 titles from PubMed and EMBASE, respectively. After screening, 19 articles were included in this review. Suggestions of the expert panel were formulated by mutual consensus after reviewing the relevant literature. The draft of the expert panel’s suggestions was circulated among all authors via electronic mail for comments. Any conflicts were resolved by mutual discussion to achieve agreement. The final document was approved by all. This document by the International Network for Airway Secretions Management in NIV describes various airway secretion clearance techniques. It provides the expert panel’s suggestions for the use of these techniques in conjunction with NIV for patients with muco-obstructive and neuromuscular disorders. 

Human Birth Imaging Using MRI: Prospective cohort study (Preprint)

2021 ◽  
Author(s):  
Olivier Ami ◽  
Jean Christophe Maran ◽  
Dominique Musset ◽  
Claude Dubray ◽  
Gérard Mage ◽  
...  
Keyword(s):  
Soft Tissues ◽  
Neurological Impairment ◽  
Invasive Technique ◽  
Resonance Imaging ◽  
Effective Utilization ◽  
Medical Risk ◽  
Non Invasive ◽  
Bony Pelvis ◽  
Magnetic Resonance Imaging Mri ◽  
Human Birth

UNSTRUCTURED Childbirth is a physiologic process with significant medical risk, as neurological impairment due to the birthing process can occur at any time. Improvements in risk assessment and anticipatory interventions are constantly needed; however, the birthing process is difficult to assess using simple imaging technology since the maternal bony pelvis and fetal skeleton interfere with visualizing the soft tissues. Magnetic resonance imaging (MRI) is a non-invasive technique with no ionizing radiation that can monitor the biomechanics of the birthing process. Effective utilization of this modality, however, requires teamwork and implementation of the appropriate safeguards to achieve appropriate safety levels. This article describes a clinically effective and safe method to perform real-time MRI during the birthing process. We report the experience of our team as part of the IMAGINAITRE research protocol (France), which aimed better understand of the biomechanics of childbirth. 

Design and Development of Capacitance Sensor Array for Analyzing the Non-Homogeneity in Biological Materials

2018 ◽  
pp. 70-96 ◽  
Author(s):  
Sahana Apparsamy ◽  
Kamalanand Krishnamurthy
Keyword(s):  
Sensor Array ◽  
Soft Tissues ◽  
Imaging System ◽  
Learning Algorithm ◽  
Automated Analysis ◽  
Biological Materials ◽  
Jaccard Index ◽  
Capacitance Sensor ◽  
Laser Imaging ◽  
Morphological Variations

Soft tissues are non-homogeneous deformable structures having varied structural arrangements, constituents, and composition. This chapter explains the design of a capacitance sensor array for analyzing and imaging the non-homogeneity in biological materials. Further, tissue mimicking phantoms are developed using Agar-Agar and Polyacrylamide gels for testing the developed sensor. Also, the sensor employs an unsupervised learning algorithm for automated analysis of non-homogeneity. The reconstructed capacitance image can also be sensitive to topographical and morphological variations in the sample. The proposed method is further validated using a fiberoptic-based laser imaging system and the Jaccard index. In this chapter, the design of the sensor array for smart analysis of non-homogeneity along with significant results are presented in detail.

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