The Wrightington classification of rheumatoid wrist x-rays: A guide to surgical, management

1989 ◽  
Vol 14 (4) ◽  
pp. 451-455 ◽  
Author(s):  
S HODGSON ◽  
J STANLEY ◽  
A MUIRHEAD
Keyword(s):  
Surgical Management ◽  
X Rays ◽  
Rheumatoid Wrist

The Wrightington Classification of Rheumatoid Wrist X-Rays: A Guide to Surgical Management

1989 ◽  
Vol 14 (4) ◽  
pp. 451-455
Author(s):  
S. P. HODGSON ◽  
J. K. STANLEY ◽  
A. MUIRHEAD
Keyword(s):  
Rheumatoid Arthritis ◽  
Surgical Management ◽  
X Rays ◽  
Rheumatoid Disease ◽  
Rheumatoid Wrist ◽  
Practical Guidance ◽  
Surgical Choices ◽  
Results Of Surgery

We have reviewed the pre-operative radiological appearances, the type of operation performed and the results of surgery of 234 wrists in 179 patients with rheumatoid arthritis. Based on this, a classification of X-rays of the rheumatoid wrist is described. It is designed to provide practical guidance to the surgeon who is planning surgery in a patient with rheumatoid disease. The surgical choices at each stage of the disease are briefly discussed.

scholarly journals Spectral Tomography for 3D Element Detection and Mineral Analysis

Minerals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 598
Author(s):  
Jose R. A. Godinho ◽  
Gabriel Westaway-Heaven ◽  
Marijn A. Boone ◽  
Axel D. Renno
Keyword(s):  
Energy Spectrum ◽  
3D Imaging ◽  
X Rays ◽  
3D Images ◽  
Characterization Methods ◽  
X Ray ◽  
Additional Information ◽  
Mineral Phases ◽  
Spectral Computed Tomography

This paper demonstrates the potential of a new 3D imaging technique, Spectral Computed Tomography (sp-CT), to identify heavy elements inside materials, which can be used to classify mineral phases. The method combines the total X-ray transmission measured by a normal polychromatic X-ray detector, and the transmitted X-ray energy spectrum measured by a detector that discriminates between X-rays with energies of about 1.1 keV resolution. An analysis of the energy spectrum allows to identify sudden changes of transmission at K-edge energies that are specific of each element. The additional information about the elements in a phase improves the classification of mineral phases from grey-scale 3D images that would be otherwise difficult due to artefacts or the lack of contrast between phases. The ability to identify the elements inside the minerals that compose ore particles and rocks is crucial to broaden the application of 3D imaging in Earth sciences research and mineral process engineering, which will represent an important complement to traditional 2D imaging mineral characterization methods. In this paper, the first applications of sp-CT to classify mineral phases are showcased and the limitations and further developments are discussed.

Classification of Fresh Fractures of the Lunate

1988 ◽  
Vol 13 (4) ◽  
pp. 458-462
Author(s):  
H. TEISEN ◽  
J. HJARBAEK
Keyword(s):  
Vascular Anatomy ◽  
X Rays ◽  
Lunate Bone ◽  
X Ray

The X-rays of 17 patients with fresh fractures of the lunate bone have been reviewed. The fractures were classified according to their radiological appearances and according to the vascular anatomy of the lunate. A long term X-ray follow-up examination was performed.

Classifications of acute pancreatitis: to Atlanta and beyond

Open Medicine ◽  
2014 ◽  
Vol 9 (4) ◽  
pp. 543-549
Author(s):  
Anna Pallisera ◽  
Farah Adel ◽  
Jose Ramia
Keyword(s):  
Acute Pancreatitis ◽  
Minimally Invasive ◽  
Surgical Management ◽  
Historical Review ◽  
Diagnostic Methods ◽  
Local Complications ◽  
Made In

AbstractUntil Atlanta Classification (AC) made in 1992, there was not any classification of acute pancreatitis (AP). Last twenty years AC let us compare results and papers. But the increasing understanding of the pathophysiology of AP, improvements in diagnostic methods and the development of minimally invasive tools for radiological, endoscopic and surgical management of local complications, several authors have called for the AC to be reviewed. Last months, two new classifications of AP have been published. We made a historical review of AC, the two new classifications and a comparison between them.

scholarly journals NuSTAR reveals that the heavily obscured nucleus of NGC 2785 was the contaminant of IRAS 09104+4109 in the BeppoSAX/PDS hard X-rays

2018 ◽  
Vol 619 ◽  
pp. A16
Author(s):  
C. Vignali ◽  
P. Severgnini ◽  
E. Piconcelli ◽  
G. Lanzuisi ◽  
R. Gilli ◽  
...  
Keyword(s):  
X Rays ◽  
X Ray ◽  
Star Forming ◽  
Physical Description ◽  
Enhanced Sensitivity ◽  
X Ray Imaging ◽  
First Time ◽  
In Virtue Of

Context. The search for heavily obscured active galactic nuclei has been revitalized in the last five years by NuSTAR, which has provided a good census and spectral characterization of a population of such objects, mostly at low redshift, thanks to its enhanced sensitivity above 10 keV compared to previous X-ray facilities, and its hard X-ray imaging capabilities. Aims. We aim at demonstrating how NGC 2785, a local (z = 0.009) star-forming galaxy, is responsible, in virtue of its heavily obscured active nucleus, for significant contamination in the non-imaging BeppoSAX/PDS data of the relatively nearby (≈17′) quasar IRAS 09104+4109 (z = 0.44), which was originally mis-classified as Compton thick. Methods. We analyzed ≈71 ks NuSTAR data of NGC 2785 using the MYTorus model and provided a physical description of the X-ray properties of the source for the first time. Results. We found that NGC 2785 hosts a heavily obscured (NH ≈ 3 × 1024 cm−2) nucleus. The intrinsic X-ray luminosity of the source, once corrected for the measured obscuration (L2−10keV ≈ 1042 erg s−1), is consistent within a factor of a few with predictions based on the source mid-infrared flux using widely adopted correlations from the literature. Conclusions. Based on NuSTAR data and previous indications from the Neil Gehrels Swift Observatory (BAT instrument), we confirm that NGC 2785, because of its hard X-ray emission and spectral shape, was responsible for at least one third of the 20–100 keV emission observed using the PDS instrument onboard BeppoSAX, originally completely associated with IRAS 09104+4109. Such emission led to the erroneous classification of this source as a Compton-thick quasar, while it is now recognized as Compton thin.

scholarly journals Heritability of 2D:4D finger length ratio

2021 ◽  
pp. 55-63
Author(s):  
Leonid Kalichman ◽  
◽  
Valery A. Batsevich ◽  
Eugene Kobyliansky ◽  
◽  
...  
Keyword(s):  
Familial Aggregation ◽  
Population Based ◽  
X Rays ◽  
Biological Mechanisms ◽  
Visual Classification ◽  
Sibling Correlations ◽  
Significant Heritability ◽  
The Right ◽  
The Relationship

A Chuvashian population-based sample included 802 males and 738 females (mean age 46.98±17.10 and 48.65±16.62 years, correspondingly). Age, basic demographics, anthropometric data, reproductive indices, and x-rays of both hands were collected. Results and discussion. Familial correlations of FLR traits showed no significant correlation for spouses, however, parent-offspring (0.15-0.28, p<0.001) and sibling correlations (0.13-0.38, p<0.009) were found significant. Heritability (H2) of visual classification of FLR was 0.36 for the left and 0.28 for the right hand; finger ratio was 0.55 and 0.66, respectively; the ray ratio was 0.49 and 0.59, respectively, thus indicating the existence of a clear familial aggregation of FLR variation in the Chuvashian pedigrees, which cannot be explained by pure common environmental effects. Conclusion. Results of our study suggest the familial aggregations of finger ratio variation (for all traits) in Chuvashian pedigrees. Further research should focus on the biological mechanisms of the relationship between FLR and aging.

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