Comparison of standard radiography and magnetic resonance imaging in hand osteoarthritis

Standard radiography in direct projection is the “gold standard” in the diagnosis of hand osteoarthritis (HOA). However, the currently clinically most severe “erosive” or “inflammatory” phenotype of HOA is characterized by the presence of inflammatory symptoms such as bone marrow lession (BML), synovitis and tenosinovitis, which are not visible on the radiograph by the nature of the study due to the low optical density. In addition, X-ray examination is planar and has no possibility of multiplanar visualization. This dictated the need to search for a more informative visualization technique in HOA.Aim – to compare the sensitivity and specificity of standard radiography and magnetic resonance imaging (MRI) techniques in determining the symptoms of osteoarthritis (OA) of the distal interphalangeal (DIP), proximal interphalangeal (PIP) and metacarpophalangeal (MCP) joints of the right hand; to determine the indications for the appointment of MRI in patients with HOA.Materials and methods. The study included 64 women with clinically verified diagnosis of HOA according to ask criteria. For the first time, X-rays of the joints of the right hand in the anterior-posterior projection and MRI were performed for each of them. Each patient completed the AUSCAN questionnaire. X-rays were described according to the Kellgren and Lawrence systems, magnetic resonance imaging was analyzed according to the modified OHOA system. The sensitivity and specificity of the methods were compared based on the detection of 4 symptoms detected by radiography and MRI: joint space narrowing (JSN), osteophytes (OP), erosions and subluxations. The average age of the patients was 65.28±6.82 years, the age of onset was 48.81±7.73 years, the duration of the disease was 15.0 (10.0–19.5) years.Results. Both methods showed approximately equal identification JSN symptom in DIP and PIP, 95% definition JSN in MCP. OP were detected in 88% of patients in DIP according to radiography and in 95% – using MRI (p>0.05). In PIP OP were observed in 70% of patients on radiographs and in 86% on magnetic resonance imaging, in MCP – in 45% and 66% of cases, respectively. Erosion in DIP were found in 41% of patients according to MRI and 34% as a result of X-ray examination, in PIP – in 27% and 13% of cases, in MCP – in 60% and 8% of cases, respectively. Subluxations were determined in DIP 23% on radiographs in 31% of cases by MRI, in PIP – in 8% and 6% (p>0.05), in MCP subluxations almost never met – in 3% of cases by conventional radiography.Conclusions. MRI in HOA can be used in the detection of erosive process, differential diagnosis with other diseases of the joints, determination of inflammatory changes in the hands and assessment of their severity, but has no significant advantages over standard radiography in determining the symptoms of degenerative-dystrophic nature (JSN and OP). Subluxations of the MCP joints are not typical for the HOA.

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Magnetic resonance imaging for aspirated peanut in the bronchus

The Journal of Laryngology & Otology ◽

10.1017/s002221510012818x ◽

1994 ◽

Vol 108 (9) ◽

pp. 804-805 ◽

Cited By ~ 4

Author(s):

Yasuo Hisa ◽

Keigo Tatemoto ◽

Kenji Dejima ◽

Yasuyuki Nishiyama ◽

Yukari Masuda ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Lipid Content ◽

Main Bronchus ◽

Resonance Imaging ◽

High Fat ◽

X Ray ◽

High Lipid ◽

The Right ◽

Mri Image

AbstractPeanut inhalation in the right main bronchus of a 15-month-old boy was diagnosed using a T1-weighted image produced by magnetic reasonance imaging (MRI) because of the high fat content of the peanut. The T1-weighted MRI image may also be useful in diagnosing other kinds of aspirated nuts with high lipid content as well as peanuts. This method does not involve any X-ray exposure.

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The accuracy of different imaging techniques in diagnosis of acute hematogenous osteomyelitis

Medicina ◽

10.3390/medicina45080081 ◽

2009 ◽

Vol 45 (8) ◽

pp. 624 ◽

Cited By ~ 36

Author(s):

Dalius Malcius ◽

Martynas Jonkus ◽

Gintaras Kuprionis ◽

Almantas Maleckas ◽

Eglė Monastyreckienė ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Bone Scintigraphy ◽

Odds Ratio ◽

Diagnostic Odds Ratio ◽

X Rays ◽

Resonance Imaging ◽

X Ray ◽

Hematogenous Osteomyelitis ◽

Acute Hematogenous Osteomyelitis

Objective. The aim of this study was to establish and compare diagnostic accuracy (sensitivity, specificity, and diagnostic odds ratio) of plain x-ray, ultrasonography, bone scintigraphy, computed tomography (CT), and magnetic resonance imaging (MRI) in pediatric acute hematogenous osteomyelitis. Material and methods. Analysis of patients’ data, hospitalized at the Department of Pediatric Surgery with suspected acute hematogenous osteomyelitis in the period of 2002–2008, was carried out prospectively. Inclusion criteria were age of 1–18 years, pain in bone area, fever, functional disorder, and (or) signs of infection. Plain x-ray, ultrasonography, bone scintigraphy, computed tomography, and magnetic resonance imaging were performed. The recommendations of Standards for Reporting of Diagnostic Accuracy were used in study design. Results. A total of 183 patients were included into the study. Acute hematogenous osteomyelitis was diagnosed in 156 (85%) patients, and 27 (15%) had other diseases. A total of 169 early plain x-rays (median on the first day of hospital stay), 142 late x-rays (15th day of hospital stay), 82 ultrasonographies (second day), 76 bone scintigraphy (third day), 38 MRI scans (seventh day), and 17 CT (15th day) were performed. The sensitivity of ultrasonography was 0.55 (95% CI, 0.43–0.67); specificity, 0.47 (95% CI, 0.24–0.7); and diagnostic odds ratio, 1.08 (95% CI, 0.3–3.84). The sensitivity of CT was 0.67 (95% CI, 0.38–0.88); specificity, 0.5 (95% CI, 0.01– 0.98); and diagnostic odds ratio, 2.0 (95% CI, 0.02–172.4). The sensitivity of early x-ray was 0.16 (95% CI 0.1–0.23); specificity, 0.96 (95% CI, 0.78–1.0); and diagnostic odds ratio, 4.34 (95% CI, 0.63–186.3). The sensitivity of MRI was 0.81 (95% CI, 0.64–0.93); specificity, 0.67 (95% CI, 0.22–0.96); and diagnostic odds ratio, 8.67 (95% CI, 0.91–108.5). The sensitivity of late x-ray was 0.82 (95% CI, 0.75–0.88); specificity, 0.92 (95% CI, 0.62–1.0); and diagnostic odds ratio, 51.17 (95% CI, 6.61–2222.0). The sensitivity of bone scintigraphy was 0.81 (95% CI, 0.68–0.90); specificity, 0.84 (95% CI, 0.60–0.97); and diagnostic odds ratio, 22.30 (95% CI, 4.9–132.7). Conclusions. Our analysis showed that late x-ray is the most valuable radiologic method in the diagnosis of acute hematogenous osteomyelitis, but bone scintigraphy and magnetic resonance imaging are the most valuable tests at the onset of the disease.

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Acute knee trauma – Does a normal X-ray rule out significant injury? The sensitivity and specificity of X-rays in comparison to magnetic resonance imaging (MRI)

International Journal of Surgery ◽

10.1016/j.ijsu.2018.05.397 ◽

2018 ◽

Vol 55 ◽

pp. S84

Author(s):

A.D.F. Ang ◽

J. Fultang ◽

S.G.F. Abram ◽

L.E. Smythe ◽

S.J. Spencer

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

X Rays ◽

Resonance Imaging ◽

X Ray ◽

Knee Trauma ◽

Magnetic Resonance Imaging Mri ◽

Acute Knee ◽

Significant Injury ◽

Rule Out

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Imaging and classification of osteochondritis dissecans of the capitellum: X-ray, magnetic resonance imaging or computed tomography?

Shoulder & Elbow ◽

10.1177/1758573218756866 ◽

2018 ◽

Vol 11 (2) ◽

pp. 129-136 ◽

Cited By ~ 8

Author(s):

Kimberly I. M. van den Ende ◽

Renée Keijsers ◽

Michel P. J. van den Bekerom ◽

Denise Eygendaal

Keyword(s):

Magnetic Resonance Imaging ◽

Computed Tomography ◽

Magnetic Resonance ◽

Osteochondritis Dissecans ◽

Ct Scans ◽

Diagnostic Study ◽

X Rays ◽

Resonance Imaging ◽

Loose Bodies ◽

X Ray

Background Diagnosing capitellar osteochondritis dissecans (OCD) can be difficult, causing delay in treating young athletes. The main aim of this retrospective diagnostic study was to determine which radiological technique is preferred to identify and classify elbow OCD. Methods We identified young patients who underwent elbow arthroscopy because of symptomatic OCD. We included all patients who had pre-operative radiographs, a computed tomography (CT) scan and magnetic resonance imaging (MRI) available. We assessed whether the osteochondral lesion could be identified using the various imaging modalities. All lesions were classified according to previous classifications for X-ray, CT and MRI, respectively. These results were compared with findings at arthroscopy. Results Twenty-five patients had pre-operative radiographs as well as CT scans and MRI. In six patients, the lesion was not visible on standard X-ray. In 20 patients, one or two loose bodies were found during surgery, consistent with an unstable lesion. Pre-operatively, this was seen on 11 X-rays, 13 MRIs and 18 CT scans. Conclusions Capitellar OCD lesions are not always visible on standard X-rays. A CT appears to be the preferred imaging technique to confirm diagnosis of OCD. Loose bodies are often missed, especially on standard X-rays and MRIs.

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COMBINED X-RAY AND MAGNETIC RESONANCE IMAGING FACILITY

Operative Neurosurgery ◽

10.1227/01.neu.0000255423.24173.42 ◽

2007 ◽

Vol 60 ◽

pp. 352-361 ◽

Cited By ~ 3

Author(s):

Stefan Hunsche ◽

Dieter Sauner ◽

Mohammad Maarouf ◽

Klaus Lackner ◽

Volker Sturm ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Resonance Imaging ◽

X Ray

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Alteration within the Hippocampal Volume in Patients with LHON Disease—7 Tesla MRI Study

Journal of Clinical Medicine ◽

10.3390/jcm10010014 ◽

2020 ◽

Vol 10 (1) ◽

pp. 14

Author(s):

Cezary Grochowski ◽

Kamil Jonak ◽

Marcin Maciejewski ◽

Andrzej Stępniewski ◽

Mansur Rahnama-Hezavah

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Molecular Layer ◽

Three Dimensional ◽

Hippocampal Volume ◽

7 Tesla ◽

Diagnostic Process ◽

Resonance Imaging ◽

The Right

Purpose: The aim of this study was to assess the volumetry of the hippocampus in the Leber’s hereditary optic neuropathy (LHON) of blind patients. Methods: A total of 25 patients with LHON were randomly included into the study from the national health database. A total of 15 patients were selected according to the inclusion criteria. The submillimeter segmentation of the hippocampus was based on three-dimensional spoiled gradient recalled acquisition in steady state (3D-SPGR) BRAVO 7T magnetic resonance imaging (MRI) protocol. Results: Statistical analysis revealed that compared to healthy controls (HC), LHON subjects had multiple significant differences only in the right hippocampus, including a significantly higher volume of hippocampal tail (p = 0.009), subiculum body (p = 0.018), CA1 body (p = 0.002), hippocampal fissure (p = 0.046), molecular layer hippocampus (HP) body (p = 0.014), CA3 body (p = 0.006), Granule Cell (GC) and Molecular Layer (ML) of the Dentate Gyrus (DG)–GC ML DG body (p = 0.003), CA4 body (p = 0.001), whole hippocampal body (p = 0.018), and the whole hippocampus volume (p = 0.023). Discussion: The ultra-high-field magnetic resonance imaging allowed hippocampus quality visualization and analysis, serving as a powerful in vivo diagnostic tool in the diagnostic process and LHON disease course assessment. The study confirmed previous reports regarding volumetry of hippocampus in blind individuals.

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