Die Genauigkeit von radiologischen Messungen an Fazettengelenken der Halswirbelsäule beim Pferd

Lischer, C J; Withers, J M; Parkin, T

doi:10.21836/pem20100409

Cited by 5 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While enlarged articular facets correlated better with age than with clinical findings, reported and commonly used measurements on radiographic images are regarded as being too inaccurate for a definitive antemortal diagnosis of compressive cervical spinal cord disease (Engel 2010, Down andHenson 2009). Inter-and intraobserver variability was greater than the difference between pathological and non-pathological findings (Lischer et al 2010). Therefore, radiographic findings should be interpreted with caution.…”

Section: Discussionmentioning

confidence: 98%

Nuclear scintigraphic retrospective study of the C6/7 articular facets of the equine cervical spine

Gerlach¹,

Winter²,

Zeller³

et al. 2018

PHK

View full text Add to dashboard Cite

The objectives of this study were firstly, to determine an objective grading system of radiopharmaceutical uptake in the C6/7 articular facets of the cervical spine as a predictor of clinical signs in warmblood sporthorses; and secondly to establish an objective absorption coefficient (AC) value that could possibly differentiate between presence or absence of clinical signs in this region. 308 scintigraphic views of the cervical spine in 154 German warmblood horses were evaluated. Scintigrams were divided into clinically normal (60) and clinically abnormal (94) groups of horses. Horses were grouped according to performance type and age. Uptake coefficients using C3/4 as a reference point were established. Sensitivity and specificity for detection of neck pain and radiographic abnormalities were assessed. Receiver operating characteristic (ROC) analysis was used to determine a cutoff point for distinguishing between clinically normal and abnormal horses. An AC value of 1.243 at the C6/7 cervical vertebral facets separated clinically normal from clinically abnormal horses. Values decreased slightly with increasing age of the horses, and were highest in the middle age. There was a significant difference in AC values between clinically normal and abnormal horses in the dressage and show jumping groups. The best predictive values were established for horses in the show jumping category where scintigraphic findings correlated with clinical signs. An AC value of 1.235 at the C6/7 cervical vertebral facets reliably separates pathological from physiological uptake. However, age and performance type of the horses should be taken into account when interpreting these findings.

show abstract

Section: Discussionmentioning

confidence: 98%

Nuclear scintigraphic retrospective study of the C6/7 articular facets of the equine cervical spine

Gerlach¹,

Winter²,

Zeller³

et al. 2018

PHK

View full text Add to dashboard Cite

show abstract

“…Despite published scoring systems, the interpretation of radiography and ultrasonography remains challenging because of possibly irrelevant natural anatomic variations, the subtlety of lesions, their progressive and degenerative nature, the superimposition of neighboring structures, possible incidental projectional obliquity as well as technical limitations (Clayton and Stubbs 2016, Erichsen 2003, Erichsen et al 2004, Veraa et al 2020). Moreover, imaging findings have been found to not perfectly correlate with the clinical findings, which add to the difficulty of interpretation (Haussler et al 1999, Gundel et al 1997, Gerlach et al 2018, Lischer et al 2010, Geiger and Gerhards 2015, Holmer et al 2007.…”

Section: Introductionmentioning

confidence: 99%

Findings and interobserver agreement in radiography and ultrasonography of the vertebral column of a large population of normally performing horses

Donati¹,

Coudry²,

Denoix³

et al. 2022

PHK

View full text Add to dashboard Cite

Diagnostic imaging is a mainstay in the investigation of equine neck and back pain, but interpretation of radiographic and ultrasonographic findings in the spinal column of horses is not straightforward for a variety of reasons including individual anatomical variations, progressive degenerative nature of most pathologies and superimposition as well as technical limits. These issues are even more relevant in the context of examinations of apparently sound horses with absent, mild or unclear complaints, like it is often the case in pre-purchase examinations or cases of failure to meet expected performance. The first aim was to report on the spectrum, degree and location of first-line imaging findings in the spine of a large population of normally performing horses. Limited data is available about agreement of interpretation of equine vertebral column imaging by radiologists. The second aim of this prospective study was to determine interobserver agreement on radiographic and ultrasonographic diagnostic imaging findings in the vertebral column of the same population between multiple observers with longstanding experience in equine diagnostic imaging at two different institutions. Seventy-one horses randomly selected from a larger population of 250 normally performing horses participating in a swiss project on equine back health were examined at one referral center. Radiographic and ultrasonographic examinations were performed in a standardized fashion and images graded separately by two experienced radiologists at two different institutions. Focus was placed on osteoarthrosis of the synovial intervertebral articulations (SIVAs), impinging and overriding of the spinous processes (SPs) and spondylosis. Cohen's weighted kappa was calculated for each pathology, location and segment in each modality. Interobserver agreement was calculated for findings at specific locations, single pathologies and single grades. Most horses showed no changes and were allocated grades 0 at most locations. Few abnormalities were found throughout the vertebral column, with clusters of abnormalities of the SIVAs in the caudal cervical segment and cranial lumbar segment as well as a cumulation of changes at the dorsal spinous processes in the caudal thoracic segment. These coincide with previously reported predilection sites of imaging findings in symptomatic populations. Overall mean value of agreement for imaging findings was moderate (k= 0.7). Agreement was moderate for imaging findings regarding the synovial intervertebral articulations of the thoracolumbar spine in radiography (k=0.66) but weak in ultrasonography (k=0.58). There was moderate agreement in the imaging findings of the cervical spine in ultrasonography (k=0.61) as well as radiography (k=0.62). Strong agreement was found in the radiographic assessment of changes of the thoracolumbar spinous processes (k=0.80). Almost perfect agreement was found in the radiographic assessment of thoracolumbar spondylosis (k=0.95). Agreement between radiologists in detection and grading of path...

show abstract

Multifactorial and idiopathic disorders

2022

Large Animal Neurology

View full text Add to dashboard Cite

Die Genauigkeit von radiologischen Messungen an Fazettengelenken der Halswirbelsäule beim Pferd

Cited by 5 publications

References 2 publications

Nuclear scintigraphic retrospective study of the C6/7 articular facets of the equine cervical spine

Nuclear scintigraphic retrospective study of the C6/7 articular facets of the equine cervical spine

Findings and interobserver agreement in radiography and ultrasonography of the vertebral column of a large population of normally performing horses

Multifactorial and idiopathic disorders

Contact Info

Product

Resources

About