scholarly journals The Value of CT 3D Reconstruction in the Classification and Nursing Effect Evaluation of Ankle Fracture

2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Pan Xue ◽  
Xue Chen ◽  
Si Chen ◽  
Yuanyuan Shi
Keyword(s):  
3D Reconstruction ◽  
Ankle Fracture ◽  
Spiral Ct ◽  
Fracture Classification ◽  
Effect Evaluation ◽  
X Ray ◽  
Early Classification ◽  
First Choice ◽  
Different Types

Aim. To study the application value of ankle fracture classification and diagnosis. In this paper, the clinical data of 100 cases of ankle fracture patients admitted from May 2020 to May 2021 were analyzed by CT 3D reconstruction. All patients received surgical treatment and underwent spiral CT 3D reconstruction and X-ray examination before surgery. The results showed that 20 cases (20.00%) of the 100 cases were PER, 24 cases (24%) of the 100 cases were PAB, 31 cases (31%) of the 100 cases were SER, and 25 cases (25%) of the 100 cases were SAB, respectively. Conclusion. The diagnostic accuracy of CT 3D reconstruction for different types of ankle fracture is higher than that of X-ray, and the differences are statistically significant ( P < 0.05 ). CT 3D reconstruction is applied in the early diagnosis of ankle fracture, which can accurately detect the classification of patients. It has important clinical application value and can be used as the first choice for the early classification diagnosis of ankle fracture.

Ankle Fracture Classification: A Comparison of Reliability of Three X-ray Views Versus Two

1998 ◽  
Vol 19 (8) ◽  
pp. 555-562 ◽  
Author(s):  
Michael E. Brage ◽  
Matthew Rockett ◽  
Robert Vraney ◽  
Robert Anderson ◽  
Alicia Toledano
Keyword(s):  
Ankle Fracture ◽  
Ankle Injury ◽  
Ankle Fractures ◽  
Kappa Statistics ◽  
Fracture Classification ◽  
X Ray ◽  
Good Accord ◽  
Interexaminer Reliability ◽  
Intraexaminer Reliability ◽  
Good Agreement

Our hypothesis was that malleolar ankle fractures could be classified with two radiographic views as reliably as with three views. Four different observers independently evaluated 99 sets of ankle radiographs. The examiners classified the ankle fractures by using both the Lauge-Hansen and Danis-Weber systems. The interobserver and intraobserver variations were analyzed by kappa statistics. With regard to intraexaminer reliability, the examiners demonstrated excellent accord in classifying the fractures in the Danis-Weber system with either three views or two views. The kappa values were comparable. In the Lauge-Hansen system, three examiners demonstrated excellent accord and one examiner demonstrated good accord in classifying the fractures. Similar kappa values were generated when examiners classified fractures with either three views or two views. With regard to interexaminer reliability, good to excellent accord was demonstrated overall among the four examiners when they used the Danis-Weber system with either three views or two views. The examiners were in good agreement when they used the Lauge-Hansen system. Similar kappa values were generated whether the examiners used three views or two views. Three radiographic views are usually ordered for evaluation of an acute ankle injury. Previous studies have shown that only two views are needed for diagnosis of a malleolar ankle fracture. This study demonstrates that malleolar ankle fractures can be classified with two views, lateral or mortise, with a reliability as good as that achieved with three views. The best agreement is achieved with lateral and mortise views.

Application of CT Image in Diagnosis of Pulmonary Tuberculosis

2020 ◽  
Vol 10 (4) ◽  
pp. 868-872
Author(s):  
Yulei Wan ◽  
Jiwei Xiao ◽  
Dawei Wang ◽  
Xiaoyan Wang ◽  
Ying Liu ◽  
...  
Keyword(s):  
Pulmonary Tuberculosis ◽  
Detection Rate ◽  
Lower Lobe ◽  
Spiral Ct ◽  
Clinical Classification ◽  
Basal Segment ◽  
X Ray ◽  
Ct Examination ◽  
The Difference

In order to study the diagnosis of computed tomography (CT) image-assisted pulmonary tuberculosis patients, patients who are diagnosed as tuberculosis in Wuhan No. 6 Hospital Affiliated to Jianghan University are selected as a research object, and multi-slice spiral CT and routine X-ray examination are performed. By analyzing and comparing multi-slice spiral CT and routine X-ray examination, the diagnostic value of tuberculosis is evaluated and the detection rate of lesions in the lung and clinical classification of tuberculosis are also evaluated (including the anterior segment of the upper lobe, the posterior segment of the superior lobe, the dorsal segment of the lower lobe, the basal segment of the lower lobe, and concealment). The results show that compared with conventional X-ray examination, the sensitivity and accuracy of multi-slice spiral CT examination for diagnosis of pulmonary tuberculosis are higher, and the difference is statistically significant. In the upper part of the upper lobe, the posterior part of the upper lobe, the lower part of the lower lobe, and the tuberculosis lesions in the basal segment and hidden part of the lower lobe, the detection rate of multi-slice spiral CT examination is significantly higher than the X-ray examination, and the difference is statistically significant. In the diagnosis of tuberculosis classification, the misdiagnosis rate of multi-slice spiral CT examination is significantly lower than the conventional X-ray examination, and the difference is statistically significant. Therefore, CT images have important reference value in the diagnosis of tuberculosis, the examination of lesions, and the clinical classification of tuberculosis. Although there are still some shortcomings in the research process, it still provides some basis and ideas for more precise research.

Classification of stacking faults and their stepwise elimination during the disorder → order transformation of nickel hydroxide

2006 ◽  
Vol 62 (4) ◽  
pp. 530-536 ◽  
Author(s):  
T. N. Ramesh ◽  
P. Vishnu Kamath ◽  
C. Shivakumara
Keyword(s):  
Diffraction Pattern ◽  
Powder Diffraction ◽  
Nickel Hydroxide ◽  
Stacking Faults ◽  
X Ray ◽  
Local Structures ◽  
Different Types ◽  
Different Temperatures ◽  
Stacking Patterns

Nickel hydroxide samples obtained by strong alkali precipitation are replete with stacking faults. The local structures of the stacking faults resemble the stacking patterns of different polytypic modifications that are theoretically possible among the layered hydroxides. This resemblance becomes a basis for the classification of stacking faults into different types. Each type of stacking fault produces a characteristic non-uniform broadening of peaks in the X-ray powder diffraction pattern of nickel hydroxide. DIFFaX simulations aid the classification and quantification of stacking faults. Hydrothermal treatment of a poorly ordered nickel hydroxide slurry at different temperatures (338–473 K) and different durations (5–48 h) shows that the stacking faults are removed in a stepwise manner. The as-precipitated sample has 17–20% stacking faults of the 3R 2 variety, which evolve into the 2H 2 type at 413 K. The 2H 2 stacking faults persist up to 443 K. The stacking faults are completely removed only at 473 K. At this temperature an ordered β-Ni(OH)2 phase is observed.

Medical Image Analysis and Correlation Between Ankle Fracture Classification and Ankle Computed Tomography

2020 ◽  
Vol 10 (12) ◽  
pp. 2935-2939
Author(s):  
Yugang Teng ◽  
Yuanzhen Zhang ◽  
Zhenyu Wang
Keyword(s):  
Computed Tomography ◽  
Cross Section ◽  
Ankle Fracture ◽  
Medical Image Analysis ◽  
Ct Images ◽  
Ankle Fractures ◽  
Fracture Classification ◽  
Horizontal Cross Section ◽  
X Ray ◽  
The Relationship

Objective: In this paper, we summarize computed tomography (CT) manifestations and characteristics of ankle fractures, and analyze the relationship between CT images and common ankle fracture classifications. Methods: A retrospective survey of 369 adult ankle fractures was performed. CT images of 1 cm horizontal cross-section above the ankle points and their characteristics were analyzed. Ankle fracture X-ray classification was performed, and the relationship between CT images and fracture X-ray classification was analyzed. Results: There is a correlation between CT images and Danis-Weber classification. The incidence of IOL fractures varies with the severity of Danis-Weber classification. After rank correlation test, the difference is statistically significant (Spearman R = 0.781,P < 0.001). CT images can detect IOL fractures that cannot be judged by X-ray fracture classification, and the incidence rate is 5.9%. Conclusions: The 1 cm horizontal cross-section CT image on the ankle point can clearly determine the combined tibiofibular IOL injury before surgery, and it has a good correlation with the Danis-Weber fracture classification, and can detect unexplainable IOL fractures in some radiographs.

scholarly journals Characterization of different types of petroleum refinery spent catalyst followed by microbial mediated leaching of metal values

2021 ◽  
Vol 3 (1) ◽  
pp. 177-187
Author(s):  
Neha Nagar ◽  
◽  
Himanshi Garg ◽  
Chandra Sekhar Gahan ◽  
◽  
...  
Keyword(s):  
Chemical Composition ◽  
Petroleum Refinery ◽  
Metal Recovery ◽  
X Ray Diffraction ◽  
Spent Catalyst ◽  
X Ray ◽  
Different Types ◽  
Spent Catalysts

The present study aims for characterization and classification of five different spent petroleum refinery catalysts followed by metal recovery via bioleaching. The nomenclature given to the different spent catalyst (SC) is SC1, SC2, SC3, SC4 and SC5 collected from an Indian petroleum refinery. All spent catalysts were crushed and ground prior to their characterization by X-Ray Fluorescence for chemical composition followed by X-Ray Diffraction and Scanning Electron Microscopy-Energy Dispersive X-Ray Spectroscopy for their mineralogy. Further, all five spent catalysts were classified based upon their chemical composition and mineralogy. Metal recovery from the spent catalysts was carried out by bioleaching by a mixed microbial consortium of iron and Sulphur oxidizing microorganisms. Most of the spent catalysts showed very significant metal recovery with respect to Ni, Cu, Cr, Mo, Zn, Sr and Ti. The study provides a possible metal recovery route via bioleaching for further testing and scaling up.

Analysis of Industrial Glass by Portable µ-EDXRF

2008 ◽  
Vol 39-40 ◽  
pp. 559-562
Author(s):  
Angelo Agostino ◽  
R. Falcone ◽  
M. Vallotto ◽  
M. Verità
Keyword(s):  
Production Quality ◽  
Industrial Applications ◽  
Industrial Glass ◽  
Production Quality Control ◽  
X Ray ◽  
Critical Elements ◽  
Different Types ◽  
Glass Analysis ◽  
Non Destructive

Portable energy-dispersive micro X-ray fluorescence spectrometry (-EDXRF) is a useful device for non-destructive chemical analysis of different materials. Despite its evident potential in the fields of glass analysis, only few archaeometric studies have been performed yet. In this work preliminary results on the analysis of different types of industrial glass by -XRF are presented in view to apply this method in industrial applications (monitoring of glass cullet, production quality control, classification of end products, etc.). The experimental results show a reliable qualitative recognition of detectable elements in the glass. A good correlation line intensity/concentration was verified for several important elements. Furthermore very low limits of detection were estimated for critical elements such as Fe, Cr and Pb.

Hierarchical fracture classification of proximal femur X-Ray images using a multistage Deep Learning approach

2020 ◽  
Vol 133 ◽  
pp. 109373 ◽  
Author(s):  
Leonardo Tanzi ◽  
Enrico Vezzetti ◽  
Rodrigo Moreno ◽  
Alessandro Aprato ◽  
Andrea Audisio ◽  
...  
Keyword(s):  
Deep Learning ◽  
Proximal Femur ◽  
Learning Approach ◽  
Fracture Classification ◽  
X Ray

Identification of Asbestos Fibres in a Water Sample by X-Ray Microanalysis

1975 ◽  
Vol 33 ◽  
pp. 274-275
Author(s):  
K. A. Brookes ◽  
D. Finbow ◽  
Madeleine Samuel
Keyword(s):  
Water Sample ◽  
Background Radiation ◽  
X Ray ◽  
Left Hand ◽  
Transmission Imaging ◽  
Different Types ◽  
Normal Specimen ◽  
Liquid Nitrogen Cooling ◽  
Normal Transmission ◽  
Additional Port

Investigation of the particulate matter contained in the water sample, revealed the presence of a number of different types and certain of these were selected for analysis.An A.E.I. Corinth electron microscope was modified to accept a Kevex Si (Li) detector. To allow for existing instruments to be readily modified, this was kept to a minimum. An additional port is machined in the specimen region to accept the detector, with the liquid nitrogen cooling dewar conveniently housed in the left hand cupboard adjacent to the microscope column. Since background radiation leads to loss in the sensitivity of the instrument, great care has been taken to reduce this effect by screening and manufacturing components that are near the specimen from material of low atomic number. To change from normal transmission imaging to X-ray analysis, the special 4-position specimen rod is inserted through the normal specimen airlock.

Dual stain kit for the microscopic gram classification of ocular infection bacteria

1993 ◽  
Vol 51 ◽  
pp. 248-249
Author(s):  
Jacob S. Hanker ◽  
Dale N. Holdren ◽  
Kenneth L. Cohen ◽  
Beverly L. Giammara
Keyword(s):  
Contact Lenses ◽  
Ocular Infection ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
Gram Staining ◽  
Ocular Infections ◽  
Different Types ◽  
Culture Positive ◽  
Increased Susceptibility

Keratitis and conjunctivitis (infections of the cornea or conjunctiva) are ocular infections caused by various bacteria, fungi, viruses or parasites; bacteria, however, are usually prominent. Systemic conditions such as alcoholism, diabetes, debilitating disease, AIDS and immunosuppressive therapy can lead to increased susceptibility but trauma and contact lens use are very important factors. Gram-negative bacteria are most frequently cultured in these situations and Pseudomonas aeruginosa is most usually isolated from culture-positive ulcers of patients using contact lenses. Smears for staining can be obtained with a special swab or spatula and Gram staining frequently guides choice of a therapeutic rinse prior to the report of the culture results upon which specific antibiotic therapy is based. In some cases staining of the direct smear may be diagnostic in situations where the culture will not grow. In these cases different types of stains occasionally assist in guiding therapy.

Explanatory Power for Medical Expert Systems: Studies in the Representation of Causal Relationships for Clinical Consultations

1982 ◽  
Vol 21 (03) ◽  
pp. 127-136 ◽  
Author(s):  
J. W. Wallis ◽  
E. H. Shortliffe
Keyword(s):  
Explanatory Power ◽  
Prototype System ◽  
Inference Rules ◽  
Medical Expert ◽  
Comprehensive Knowledge ◽  
Different Types ◽  
Medical Expert Systems ◽  
Explanation System ◽  
Systems Studies

This paper reports on experiments designed to identify and implement mechanisms for enhancing the explanation capabilities of reasoning programs for medical consultation. The goals of an explanation system are discussed, as is the additional knowledge needed to meet these goals in a medical domain. We have focussed on the generation of explanations that are appropriate for different types of system users. This task requires a knowledge of what is complex and what is important; it is further strengthened by a classification of the associations or causal mechanisms inherent in the inference rules. A causal representation can also be used to aid in refining a comprehensive knowledge base so that the reasoning and explanations are more adequate. We describe a prototype system which reasons from causal inference rules and generates explanations that are appropriate for the user.

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