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Lack of radioprotection knowledge and compliance in Norwegian equine ambulatory practice.

https://arctichealth.org/en/permalink/ahliterature301592
Source
Vet Radiol Ultrasound. 2019 May; 60(3):265-272
Publication Type
Journal Article
Date
May-2019
Author
Marthe Aamodt Mikkelsen
Nina Ottesen
Bjørn Helge Knutsen
Åste Søvik
Author Affiliation
Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Science, Oslo, Norway.
Source
Vet Radiol Ultrasound. 2019 May; 60(3):265-272
Date
May-2019
Language
English
Publication Type
Journal Article
Keywords
Animals
Cross-Sectional Studies
Guideline Adherence - legislation & jurisprudence - statistics & numerical data
Health Knowledge, Attitudes, Practice
Horses
Norway
Radiation Protection - standards
Radiography - psychology
Veterinarians - psychology
Abstract
There is an increasing use of mobile radiographic units in equine ambulatory practices in Norway. Horse owners or handlers often participate in the radiographic examination in a non-controlled area. The aim of this descriptive, cross-sectional, survey study was to evaluate the radiation safety and protection in use of mobile radiography, and to identify areas where special attention from the regulatory authorities as well as veterinary educators would be required. A questionnaire was distributed to all equine veterinarians assumed to have access to mobile radiographic units, as part of a formal inspection in cooperation with the Norwegian Radiation Protection Authority. Few practices met the regulatory requirements of notifying the authorities of their radiographic units and designation of a radiation protection officer. The minority of the practices performed periodic quality assurance of their equipment. Many of the practices performed all of their radiographic examinations off-site. The examinations were most often performed in the aisle outside the horses' stalls, and few practices established an operating zone. The horse owner or handler participated in the radiographic examination in almost all of the practices. Few practices used dosimeters for determination of the radiation exposure. The study shows that there are major deficits in regulatory compliance in ambulatory equine radiography practices in Norway. The study also suggests that less stringent regulations and supervision may translate into less stringent radioprotection practices.
PubMed ID
30604431 View in PubMed
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Vertebral column deformity with curved cross-stitch vertebrae in Norwegian seawater-farmed Atlantic salmon, Salmo salar L.

https://arctichealth.org/en/permalink/ahliterature307203
Source
J Fish Dis. 2020 Mar; 43(3):379-389
Publication Type
Journal Article
Date
Mar-2020
Author
Cathrine Trangerud
Håvard Bjørgen
Erling Olaf Koppang
Randi Nygaard Grøntvedt
Hege Kippenes Skogmo
Nina Ottesen
Agnar Kvellestad
Author Affiliation
Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Oslo, Norway.
Source
J Fish Dis. 2020 Mar; 43(3):379-389
Date
Mar-2020
Language
English
Publication Type
Journal Article
Keywords
Animals
Fish Diseases - epidemiology - pathology
Norway - epidemiology
Prevalence
Salmo salar - abnormalities
Spinal Diseases - epidemiology - pathology - veterinary
Spine - abnormalities
Abstract
Pathological changes in the vertebral column of farmed Atlantic salmon in Norway have been reported since the 1990s. Based on the characteristic radiographic findings, we here present a vertebral column deformity named "curved cross-stitch vertebrae" that mainly affects the middle aspect of the vertebral column. Sixty fish, from the west/northwest coast of mid-Norway, were sampled at slaughter and examined by radiography, computed tomography (CT), necropsy, macrophotography, and histology. The vertebral deformities were radiographically graded as mild, moderate, or marked. The main differences between these grades of changes were defined by increased curving of the peripheries of endplates, reduced intervertebral spaces, and vertical displacement of the vertebrae. The curved rims of endplates were located peripheral to a continuous and approximately circular borderline. The CT studies revealed small, multifocal, hypo-attenuating, round to crescent-shaped areas in the notochord, compatible with the presence of gas. Additionally, histology revealed that the axial parts of endplates had circular zones with perforations, through which either notochordal tissue prolapsed into the vertebrae or vascularized fibrochondroid proliferations extended from the vertebrae into the notochord. Inflammation was present in many vertebral bodies. To the best of our knowledge, this is the first report of gas in the notochord of fish.
PubMed ID
31970816 View in PubMed
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