A CASE STUDY OF A PATIENT WITH COMPRESSION FRACTURES OF THE LUMBAR AND THORACIC SPINE SEGMENTS: UTILIZING 3D PRINTING, 3D SIMULATION, X-RAY AND MRI

2021 ◽  
Author(s):  
Lori Lioce ◽  
Gary Maddux ◽  
Ishella Fogle ◽  
Makenzie Fogle ◽  
Cooper Gunter ◽  
...  
Keyword(s):  
3D Printing ◽  
Thoracic Spine ◽  
3D Simulation ◽  
X Ray ◽  
Compression Fractures

scholarly journals FEATURES OF THE DIAGNOSIS OF UNCOMPLICATED COMPRESSION FRACTURE OF THE THORACIC SPINE IN CHILDREN

2019 ◽  
Vol 20 (5) ◽  
pp. 307-311
Author(s):  
Yakhya M. Yakhyaev ◽  
M. I. Izrailov ◽  
V. N. Merkulov ◽  
A. M. Aliskandiev ◽  
T. Ya. Yakhyaeva
Keyword(s):  
Thoracic Spine ◽  
Compression Fracture ◽  
Diagnostic Process ◽  
Vertebral Compression Fractures ◽  
Thoracic Vertebrae ◽  
Healthy Children ◽  
X Ray ◽  
Compression Fractures ◽  
Fractures In Children ◽  
Ct And Mri

X-ray diagnostics of compression fractures of bodies of the thoracic vertebrae in children not seldom causes great difficulties due to the fact that even in healthy children vertebrae have a number of features, particularly, the wedge shape. For the purpose of differential diagnosis there was performed chest X-ray examination of the thoracic vertebrae in healthy children and cases after the compression damage. The wedge index and the disk coefficient for various segments of the thoracic spine were calculated. The diagnostic efficiency of radionuclide studies was estimated to reaches 79%. The useof highly informative modern medical techniques (CT and MRI) in the diagnosis of vertebral compression fractures in children allows accurately and timely make the diagnosis and determine the condition of the surrounding tissues. Based on the analysis of medical records, radiographs, identification of options of radionuclide, CT and MRI studies, there was elaborated an algorithm for the diagnosis of compression fractures of vertebrae, which allowed optimize the diagnostic process. There are determined advantages of this algorithm.

scholarly journals Roentgenography of normal thoracic vertebrae in children by age aspect

1996 ◽  
Vol 3 (1) ◽  
pp. 34-37
Author(s):  
Ya. M. Yakh’yaev ◽  
O. L. Nechvolodova ◽  
V. N. Merkulov
Keyword(s):  
Vertebral Body ◽  
Thoracic Spine ◽  
Thoracic Vertebrae ◽  
X Ray ◽  
Compression Fractures ◽  
Fractures In Children ◽  
Vertebral Bodies

With the purpose of the improvement of the x-ray diagnosis of the thoracic vertebral body compression fractures in children the roentgenometry of the thoracic vertebral bodies was performed in children in norm by age aspect. The main criteria, i.e. wedge-shaped index and discoid coefficient, were calculated for the different segments of the thoracic spine in children from 3 to 15 years.

Vertebroplasty for the Treatment of Compression Fractures in the Upper and Middle Thoracic Spine

2005 ◽  
Vol 18 (2) ◽  
pp. 142
Author(s):  
Seok Won Kim ◽  
Seung Myung Lee ◽  
Ho Shin ◽  
Kyung Joon Lim
Keyword(s):  
Thoracic Spine ◽  
Compression Fractures

Bone density and bone health alteration in boys with Duchenne Muscular Dystrophy: a prospective observational study

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Renu Suthar ◽  
B. V. Chaithanya Reddy ◽  
Manisha Malviya ◽  
Titiksha Sirari ◽  
Savita Verma Attri ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
Bone Health ◽  
Prospective Observational Study ◽  
Bone Fractures ◽  
Long Bone ◽  
Vertebral Compression Fractures ◽  
Serum Osteocalcin ◽  
Z Score ◽  
X Ray ◽  
Compression Fractures

Abstract Objectives Boys with Duchenne Muscular Dystrophy (DMD) are at increased risk for compromised bone health, manifesting as low-impact trauma long bone fractures and vertebral compression fractures. Methods In a prospective observational study, we studied bone health parameters in North Indian boys with DMD. We consecutively enrolled ambulatory boys with DMD on glucocorticoid therapy. Bone health was evaluated with X-ray spine, Dual-energy X-ray absorptiometry (DXA), serum calcium, vitamin D3 (25[OH]D), 1,25-dihyroxyvitamin D3 (1,25[OH]2D3), serum osteocalcin, osteopontin, and N terminal telopeptide of type 1 collagen (Ntx) levels. Results A total of 76 boys with DMD were enrolled. The median age was 8.5 (interquartile range [IQR] 7.04–10.77) years. Among these, seven (9.2%) boys had long bone fractures, and four (5.3%) had vertebral compression fractures. Fifty-four (71%) boys underwent DXA scan, and among these 31 (57%) had low bone mineral density (BMD, ≤−2 z-score) at the lumbar spine. The mean BMD z-score at the lumbar spine was −2.3 (95% confidence interval [CI] = −1.8, −2.8), and at the femoral neck was −2.5 (95% CI = −2, −2.9). 25(OH)D levels were deficient in 68 (89.5%, n=76) boys, and 1,25(OH)2D3 levels were deficient in all. Mean serum osteocalcin levels were 0.68 ± 0.38 ng/mL (n=54), serum osteopontin levels were 8.6 ± 4.6 pg/mL (n=54) and serum Ntx levels were 891 ± 476 nmol/L (n=54). Boys with low BMD received glucocorticoids for longer duration, in comparison to those with normal BMD (median, IQR [16.9 (6–34) months vs. 7.8 (4.8–13.4) months]; p=0.04). Conclusions Bone health is compromised in North Indian boys with DMD. BMD at the lumbar spine is reduced in more than half of boys with DMD and nearly all had vitamin D deficiency on regular vitamin D supplements. Longer duration of glucocorticoid therapy is a risk factor for low BMD in our cohort.

scholarly journals Characterization and mapping of hematite ore mineral classes using hyperspectral remote sensing technique: a case study from Bailadila iron ore mining region

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Ibrahim Shaik ◽  
S. K. Begum ◽  
P. V. Nagamani ◽  
Narayan Kayet
Keyword(s):  
Infrared Absorption ◽  
Near Infrared ◽  
Spectral Feature ◽  
Absorption Feature ◽  
X Ray ◽  
Remote Sensing Technique ◽  
Ore Minerals ◽  
Feature Fitting ◽  
Hematite Ore

AbstractThe study demonstrates a methodology for mapping various hematite ore classes based on their reflectance and absorption spectra, using Hyperion satellite imagery. Substantial validation is carried out, using the spectral feature fitting technique, with the field spectra measured over the Bailadila hill range in Chhattisgarh State in India. The results of the study showed a good correlation between the concentration of iron oxide with the depth of the near-infrared absorption feature (R2 = 0.843) and the width of the near-infrared absorption feature (R2 = 0.812) through different empirical models, with a root-mean-square error (RMSE) between < 0.317 and < 0.409. The overall accuracy of the study is 88.2% with a Kappa coefficient value of 0.81. Geochemical analysis and X-ray fluorescence (XRF) of field ore samples are performed to ensure different classes of hematite ore minerals. Results showed a high content of Fe > 60 wt% in most of the hematite ore samples, except banded hematite quartzite (BHQ) (< 47 wt%).

Study on attenuation of 3D printing commercial filaments on standard X-ray beams for dosimetry and tissue equivalence

2021 ◽  
Vol 182 ◽  
pp. 109365
Author(s):  
M. Savi ◽  
D. Villani ◽  
M.A.B. Andrade ◽  
O. Rodrigues ◽  
M.P.A. Potiens
Keyword(s):  
3D Printing ◽  
X Ray

scholarly journals 3D printing system for earth-based construction: Case study of cob

2021 ◽  
Vol 124 ◽  
pp. 103577
Author(s):  
Mohamed Gomaa ◽  
Wassim Jabi ◽  
Alejandro Veliz Reyes ◽  
Veronica Soebarto
Keyword(s):  
3D Printing ◽  
Printing System

scholarly journals Non-destructive handheld XRF study of archaeological composite silver objects—the case study of the late Roman Seuso Treasure

2021 ◽  
Vol 13 (5) ◽  
Author(s):  
Viktória Mozgai ◽  
Bernadett Bajnóczi ◽  
Zoltán May ◽  
Zsolt Mráv
Keyword(s):  
Fluorescence Analysis ◽  
The Body ◽  
High Quality ◽  
X Ray ◽  
Composite Objects ◽  
Mechanical Attachment ◽  
Non Destructive ◽  
Made In ◽  
Late Roman

AbstractThis study details the non-destructive chemical analysis of composite silver objects (ewers, situlas, amphora and casket) from one of the most significant late Roman finds, the Seuso Treasure. The Seuso Treasure consists of fourteen large silver vessels that were made in the fourth–early fifth centuries AD and used for dining during festive banquets and for washing and beautification. The measurements were systematically performed along a pre-designed grid at several points using handheld X-ray fluorescence analysis. The results demonstrate that all the objects were made from high-quality silver (above 90 wt% Ag), with the exception of the base of the Geometric Ewer B. Copper was added intentionally to improve the mechanical properties of soft silver. The gold and lead content of the objects shows constant values (less than 1 wt% Au and Pb). The chemical composition as well as the Bi/Pb ratio suggests that the parts of the composite objects were manufactured from different silver ingots. The ewers were constructed in two ways: (i) the base and the body were made separately, or (ii) the ewer was raised from a single silver sheet. The composite objects were assembled using three methods: (i) mechanical attachment; (ii) low-temperature, lead-tin soft solders; or (iii) high-temperature, copper-silver hard solders. Additionally, two types of gilding were revealed by the XRF analysis, one with remnants of mercury, i.e. fire-gilding, and another type without remnants of mercury, presumably diffusion bonding.

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