Can glenoid wear be accurately assessed using x-ray imaging? Evaluating agreement of x-ray and magnetic resonance imaging (MRI) Walch classification

2017 ◽  
Vol 26 (9) ◽  
pp. 1527-1532 ◽  
Author(s):  
Michaela Kopka ◽  
Mitchell Fourman ◽  
Ashish Soni ◽  
Andrew C. Cordle ◽  
Albert Lin
2022 ◽  
Author(s):  
Aleksey V. Smirnov ◽  
Dmitriy S. Semenov ◽  
Ekaterina S. Ahkmad ◽  
Anna N. Khoruzhaya ◽  
Sergey Aleksandrovich Kruchinin

Diagnostic studies carried out using any medical equipment require comprehensive control, which is provided by a number of regulatory documents. Particular attention is paid to X-ray imaging methods, but in the field of magnetic resonance imaging (MRI), one can notice both the lack of this attention and the multidirectional efforts to normalize. This is understandable - this diagnostic method is not based on the use of ionizing radiation, and although magnetic fields have some effect on human health, especially on personnel who work in MRI rooms all the time, they are safe for patients who come to the diagnostic procedure from time to time. time and do not have in their body foreign metal (steel implants) or electronic (pacemakers, neurostimulators) objects. However, ignorance and non-compliance with both advisory and mandatory requirements can significantly increase the risk of harm to patients or staff, as well as lead to a decrease in the quality of imaging and diagnostics. A separate feature of the field of MRI regulation is that over the past decades, more than a dozen different standards, sanitary norms, rules, letters and recommendations have been published or revised, a significant part of which complement or duplicate each other, or completely contradict each other. As a result, the need to ensure compliance of the MRI room / department with the requirements of regulatory documents is greatly complicated. This paper provides an overview of the regulatory documentation in force in Russia related to the organization and functioning of an MRI room / department, highlights the aspects that are most important from the point of view of safe and high-quality operation, and formulates the steps necessary to modernize the system, both from the point of view of the quality of diagnostics. and the safety of MRI studies.


2017 ◽  
Vol 2017 ◽  
pp. 1-5 ◽  
Author(s):  
Atsushi Terakado ◽  
Sumihisa Orita ◽  
Kazuhide Inage ◽  
Go Kubota ◽  
Tomohiro Kanzaki ◽  
...  

Background.Elderly female patients complaints of acute low back pain (LBP) may involve vertebral fracture (VF), among which occult VF (OVF: early-stage VF without any morphological change) is often missed to be detected by primary X-ray examination. The current study aimed to investigate the prevalence of VF and OVF and the diagnostic accuracy of the initial X-ray in detecting OVF.Method.Subjects were elderly women (>70 years old) complaining of acute LBP with an accurate onset date. Subjects underwent lumbar X-ray, magnetic resonance imaging (MRI), and bone mineral density (BMD) measurement at their first visit. The distribution of radiological findings from X-ray and magnetic resonance imaging (MRI) as well as the calculation of the prevalence of VF and OVF are investigated.Results. The prevalence of VF among elderly women with LBP was 76.5% and L1 was the most commonly injured level. Among VF cases, the prevalence of OVF was 33.3%. Furthermore, osteoporotic patients tend to show increased prevalence of VF (87.5%). The predictive values in detecting VF on the initial plain X-ray were as follows: sensitivity, 51.3%; specificity, 75.0%; and accuracy rate, 56.7%.Conclusions.Acute LBP patients may suffer vertebral injury with almost no morphologic change in X-ray, which can be detected using MRI.


Author(s):  
Murray Longmore ◽  
Ian B. Wilkinson ◽  
Andrew Baldwin ◽  
Elizabeth Wallin

Principles in radiology:Typical effective dosesJustifying exposure to ionizing radiationThe art of the requestInterpreting an imagePresenting an imageModalities:Chest x-ray (cxr) –740Plain abdominal x-rayComputed tomography (ct) –746Magnetic resonance imaging (mri...


2005 ◽  
Vol 46 (7) ◽  
pp. 708-715 ◽  
Author(s):  
K. Kanberoglu ◽  
F. Kantarci ◽  
M. H. Yilmaz

Osteosclerosis is defined as increased density of bone on X-ray imaging studies. It is known that osteosclerosis appears hypointense on both T1- and T2-weighted magnetic resonance imaging sequences. In this review, we present our experience in various sclerotic skeletal pathologies that appear hyperintense on T2-weighted magnetic resonance imaging. We emphasize the possible pathophysiological mechanisms that may cause this appearance, such as bone marrow edema and/or composition of newly formed bone.


2021 ◽  
Vol 8 (04) ◽  
pp. 5338-5340
Author(s):  
Yuri Haiga

 Background: Spondylitis TB is an infection of Mycobacterium TB involving the spine. The course of spondylitis TB is relatively indolent. This study was conducted to evaluate the clinical presentation and a goal of surgery in two patients who had been operated for spondylitis tuberculosis (TB) in Siti Rahmah Hospital during Covid-19 pandemic. Case Report: Case 1, A 24-year-old woman, presented to the emergency department with a complaint of nausea, vomiting, weight loss, and severe back pain. On admission she was febrile and had leukocytosis. Initial spinal x-ray was performed and revealed osteolytic changes in the vertebral body of T10 and T11. Magnetic resonance imaging (MRI) of the spine illustrated spondylitis of T8 until T12, with paravertebral abscesses, which was suggestive spondylitis. Case 2, A 19-year-old woman, presented to policlinic with complain of paraplegi inferior and hipoestesi since 7 month ago. Magnetic resonance imaging (MRI) of the spine illustrated spondylitis of C7 until T4, with paravertebral abscesses, which was suggestive spondylitis. Both patients were operated on by an orthopedic doctor. Anatomical Pathology examination showed tuberculosis spodylitis. The patient treat surgical intervention and anti-tuberculosis drug. After surgical intervention, patient had improvement of sensoric and motoric. Conclusions: In a covid-19 pandemic situation, diagnosis and management of spondylitis TB must be carried out because it is related to the prognosis of the disease.   Keywords: Mycobacterium tuberculosis; Spondylitis, Covid-19 Pandemic


2008 ◽  
Vol 1 ◽  
pp. CMAMD.S917 ◽  
Author(s):  
Reijo Luukkainen ◽  
Kimmo O.J. Virtanen ◽  
Pekka Luukkainen

Objective To compare the radiological (X-ray) and magnetic resonance imaging (MRI) findings in the sacroiliac (SI) joints in patients with early spondylarthropathy (SpA). Methods Forty consecutive HLA B27 antigen positive patients with early SpA and inflammatory low back pain (LBP) were studied. Their SI joints were investigated by posterior anterior plain X-ray and MRI. Results The X-ray and MRI examinations gave similar results in the SI joints in 24 patients, whereas they differed in 16, this difference being significant (p = 0.007). In those 16 patients, in whom the findings differed, the X-ray findings were normal but MRI showed sacroiliitis which was bilateral in 13 and unilateral in 3 patients. The kappa coefficient between these investigations was 0.346, showing poor agreement. Conclusion These results indicate that MRI may considerably improve the diagnosis of sacroiliitis in HLA B27 antigen positive patients with early SpA and inflammatory LBP.


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