scholarly journals Application Value of Magnetic Resonance Arthrography of the Shoulder in Nursing and Diagnosis of Patients with Shoulder Joint Injury

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Si Chen ◽  
Yuanyuan Shi ◽  
Pan Xue ◽  
Xue Chen
Keyword(s):  
Magnetic Resonance ◽  
Mr Imaging ◽  
Shoulder Joint ◽  
Supraspinatus Tendon ◽  
Tendon Injury ◽  
Joint Disease ◽  
Full Thickness ◽  
Joint Injury ◽  
Significant Difference ◽  
Articular Cartilage Injury

Supraspinatus tendon injury is a common clinical shoulder joint disease and is one of the most common causes of shoulder pain and dysfunction. Supraspinatus tendon injury will lead to articular cartilage injury and degeneration, then cause joint disease, seriously affect the quality of life of patients, and bring a huge burden to the family and society. This paper mainly studies and evaluates the application value of special signs of shoulder joint and indirect MR imaging in the diagnosis of supraspinatus tendon injury. Through a series of special examinations for the diagnosis of supraspinatus tendon injury in 90 patients, including zero degree abduction resistance test, arm drop test, Jobe test, Neer sign, and Hawkins sign, all patients in the study underwent indirect magnetic resonance imaging of the shoulder joint. Finally, arthroscopic examination results were used as the “gold standard” to evaluate and analyze the diagnosis. The results showed that among the special signs, the specificity of the falling-arm test was the highest (72.2%) in the diagnosis of full-thickness supraspinatus tendon injury. Hawkins sign had the highest sensitivity (84.0%). In the diagnosis of partial supraspinatus tendon injury, the specificity of the Jobe test was the highest, which was 66.6%. The Neer sign had the highest sensitivity of 50.0%. In the diagnosis of full-thickness supraspinatus tendon injury, there was no significant difference in sensitivity between indirect MRI and Hawkins sign, but the diagnostic specificity of indirect MRI was higher than that of special sign examination. In the diagnosis of partial supraspinatus tendon injury, the sensitivity and specificity of indirect MR imaging are higher than those of special sign examination.

scholarly journals Evaluation of white matter in patients with multiple sclerosis through diffusion tensor magnetic resonance imaging

2007 ◽  
Vol 65 (3a) ◽  
pp. 561-564 ◽  
Author(s):  
Rachel E. Maia de Andrade ◽  
Emerson L. Gasparetto ◽  
Luiz Celso Hygino Cruz Jr. ◽  
Fabiana Brito Ferreira ◽  
Roberto Cortês Domingues ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
White Matter ◽  
Magnetic Resonance ◽  
Mr Imaging ◽  
Diffusion Tensor ◽  
Statistical Treatment ◽  
Control Group ◽  
Normal Appearing White Matter ◽  
Significant Difference ◽  
Normal White Matter

OBJECTIVE: To study the white matter of patients with multiple sclerosis (MS) with diffusion tensor magnetic resonance (MR) imaging (DTI). METHOD: Forty patients with clinical-laboratorial diagnosis of relapsing-remitting MS and 40 age- and sex-matched controls, who underwent conventional and functional (DTI) MR imaging, were included in the study. The DTI sequences resulted in maps of fractional anisotropy (FA) and regions of interest were placed on the plaques, peri-plaque regions, normal-appearing white matter (NAWM) around the plaques, contralateral normal white matter (CNWM) and normal white matter of the controls (WMC). The FA values were compared and the statistical treatment was performed with the Mann-Whitney U test. RESULTS: The mean FA in plaques was 0.268, in peri-plaque regions 0.365, in NAWM 0.509, in CNWM 0.552 and in WMC 0.573. Statistical significant differences in FA values were observed in plaques, peri-plaque regions and in NAWM around the plaques when compared to the white matter in the control group. There was no significant difference between the FA values of the CNWM of patients with MS and normal white matter of controls. CONCLUSION: Patients with MS show difference in the FA values of the plaques, peri-plaques and NAWM around the plaques when compared to the normal white matter of controls. As a result, DTI may be considered more efficient than conventional MR imaging for the study of patients with MS.

scholarly journals ROTATOR CUFF TENDON INJURY - AN AYURVEDA MANAGEMENT WITH JALOUKAVACARANA

2021 ◽  
Vol 9 (6) ◽  
pp. 1293-1298
Author(s):  
Bhavya K.G ◽  
George M.J
Keyword(s):  
Rotator Cuff ◽  
Shoulder Joint ◽  
Frozen Shoulder ◽  
Tendon Injury ◽  
Vascular Supply ◽  
Shoulder Injury ◽  
Joint Injury ◽  
Rotator Cuff Tendon ◽  
Strenuous Activity ◽  
Tendon Strain

Most shoulder pain is related to muscle or tendon strain. Chronic pain is often triggered by prior injuries, especially if original injury was severe or was not allowed to heal completely. Shoulder injury can cause weakness, tenderness and loss of full joint mobility. More common and less traumatic causes include lifting, reaching and pulling move- ments that strain the muscles and tendons or sprain ligaments surrounding the shoulder joint. Injury may or may not be realized during the activity. Various conditions like shoulder joint impingement, frozen shoulder, and rotator cuff tendinitis have resembling symptoms under the umbrella of disease Avabahuka described in Ayurveda. Leech application was carried out in first stage where there is reduced vascular supply. Here a case report of a female aged 31years old, who had an acute on chronic rotator cuff strain from strenuous activity underwent three sittings of Jaloukavacarana. Keywords: Rotator cuff tendon injury, Avabahuka, Jaloukavacarana.

Feasibility of the acromion index as a reference of severity of stratified supraspinatus tendon injury: a secondary analysis

2020 ◽  
Vol 61 (12) ◽  
pp. 1661-1667
Author(s):  
Hyoung Seop Kim ◽  
Seung Ho Joo ◽  
Hyun Sun Lim ◽  
Hye Won Kim
Keyword(s):  
Intraclass Correlation ◽  
Secondary Analysis ◽  
Correlation Coefficients ◽  
Supraspinatus Tendon ◽  
Tendon Injury ◽  
Statistical Correlation ◽  
Full Thickness ◽  
X Ray ◽  
Magnetic Resonance Imaging Mri ◽  
Acromion Index

Background The acromion index (AI) is the acromial lateral extension above the head of the humerus. Some researchers have advocated that the AI indicates the severity of the tear size of the full-thickness supraspinatus tendon. Purpose To validate the reproducibility of the AI between shoulder magnetic resonance imaging (MRI) and standard X-ray and to verify whether the AI is a useful index for stratifying the severity of supraspinatus tendon injuries, as well as full-thickness tears. Material and Methods We enrolled 200 patients with impingement syndrome who were subsequently evaluated with standard X-ray of the shoulder in the anteroposterior view, as well as an MRI. We performed a pilot study to validate the reproducibility of the AI using standard X-ray and MRI, and to compare the AI between these imaging modalities. The severity of supraspinatus tendon injury was classified into four groups (0 = no evidence of injury, 1 = partial tear, 2 = full-thickness tear, and 3 = complete rupture) based on an official reading of the shoulder MRI. We compared the AIs of both modalities between the groups. Results Intraclass correlation coefficients of the AIs between the two examiners were 0.819 for MRI and 0.808 for plain X-ray. The mean AI from standard X-ray was greater than that from MRI ( P<0.0001). There was no statistical correlation between the AI and the severity of supraspinatus tendon injury. Conclusion Our findings indicate that the AI cannot be generally used as a predictive reference for the stratified severities of supraspinatus tendon injury.

scholarly journals Chronic non-traumatic shoulder pain: evaluation with ultrasonography and conventional mr imaging

QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
M M N Elaassar ◽  
A Emadeldin ◽  
D Z Zidan ◽  
H M Sakr ◽  
H Abdelazim
Keyword(s):  
Rotator Cuff ◽  
Shoulder Pain ◽  
Shoulder Joint ◽  
Supraspinatus Tendon ◽  
Radiology Department ◽  
Dominant Hand ◽  
Full Thickness ◽  
Duration Of Symptoms ◽  
Partial Thickness ◽  
Chronic Shoulder Pain

Abstract Background Shoulder pain is a common and disabling complaint. It is responsible for approximately 16 % of all musculoskeletal disorders1 Shoulder pain is defined as chronic when it has been present for longer than six months, regardless of whether the patient has previously sought treatment2. The most common causes of chronic shoulder pain are reported to be rotator cuff disorders, acromioclavicular joint (ACJ) disease and glenohumeral joint (GHJ) disorders3 Aim of the Work The aim of this study is to evaluate the role of both ultrasonography and conventional MRI imaging in diagnosing various causes of chronic shoulder pain not caused by trauma. Patients and Methods 101 patients were evaluated for chronic shoulder pain ranging in age from 20 to 70-years-old. They were referred to the radiology department (Ultrasound unit and MRI unit) at Ain Shams University hospitals during the period between September 2016 and June 2018, from orthopaedic, rheumatology and physical medicine departments. Once a patient satisfied the inclusion and exclusion criteria for this study, an elaborate history was taken from all the patients which was followed by a thorough clinical evaluation, in which duration of symptoms, affected side, dominant hand, range of movement was checked. Patients were subjected to sonographic evaluation of the shoulder joint followed by MRI of the affected shoulder with mean interval between sonography and MRI about 10 days (range, 5-15 days). Results Total of 101 patients with chronic shoulder joint pain were enrolled in our study. 58 % of the patients were in the age group of 41-55 years with mean age of 48 years. Majority (42 %) of patients had chronic shoulder pain over 6-9 months. Complaints mainly resided in the form of tenderness (65 %) and night pain (25 %). Females constituted most of the patients around 68% of the cases. Majority (72%) patients in our study had right hand dominance. 57 % of the sampled patients gave positive history of heavy use of the affected shoulder. 78 % of patients demonstrated acromion morphological changes that had a direct impact on the rotator cuff findings. Amongst the rotator cuff tendons, Supraspinatus tendon was the most common tendon to be involved in our study in both USG and MRI. USG detected 92 patients and MRI detected 96 patients with supraspinatus tendon pathologies which included tendinosis, tears and calcifications and other non-rotator-cuff related findings. Total of 53 were diagnosed as rotator cuff-tear, followed by subacromial-subdeltoid bursitis (n = 32), supraspinatus impingement (n = 14), calcific tendinitis (n = 7) respectively. Supraspinatus tendinopathy was the most common diagnoses (n = 51) followed by Partial thickness tear of supraspinatus (n = 19) then full thickness of supraspinatus (n = 17). USG showed a sensitivity of 52.6% and specificity of 87.8 %, NPV of 88.9 % and PPV of 50 % with 78.8 % MRI agreement for partial thickness tears. USG showed 88 % sensitive, 97% specific, had 97 % PPV, 100% NPV, and was 96 % accurate in diagnosing complete tendon tear. MRI had a higher efficacy for both full thickness as well as partial thickness tears, whereas USG had a higher efficacy for full thickness tears only. Our study shows MRI to be a highly sensitive as well as specific technique for differentiation among different shoulder pathologies.

Identifying vulnerable carotid plaques in vivo using high resolution magnetic resonance imaging–based finite element analysis

2007 ◽  
Vol 107 (3) ◽  
pp. 536-542 ◽  
Author(s):  
Rikin A. Trivedi ◽  
Zhi-Yong Li ◽  
Jean U-King-Im ◽  
Martin J. Graves ◽  
Peter J. Kirkpatrick ◽  
...  
Keyword(s):  
Finite Element ◽  
Magnetic Resonance ◽  
Mr Imaging ◽  
Computational Analysis ◽  
Element Analysis ◽  
Vulnerable Plaques ◽  
Significant Difference ◽  
Asymptomatic Individuals ◽  
Carotid Plaque Imaging

Object Individuals with carotid atherosclerosis develop symptoms following rupture of vulnerable plaques. Biomechanical stresses within this plaque may increase vulnerability to rupture. In this report the authors describe the use of in vivo carotid plaque imaging and computational mechanics to document the magnitude and distribution of intrinsic plaque stresses. Methods Ten (five symptomatic and five asymptomatic) individuals underwent plaque characterization magnetic resonance (MR) imaging. Plaque geometry and composition were determined by multisequence review. Intrinsic plaque stress profiles were generated from 3D meshes by using finite element computational analysis. Differences in principal (shear) stress between normal and diseased sections of the carotid artery and between symptomatic and asymptomatic plaques were noted. Results There was a significant difference in peak principal stress between diseased and nondiseased segments of the artery (mean difference 537.65 kPa, p < 0.05). Symptomatic plaques had higher mean stresses than asymptomatic plaques (627.6 kPa compared with 370.2 kPa, p = 0.05), which were independent of luminal stenosis and plaque composition. Conclusions Significant differences in plaque stress exist between plaques from symptomatic individuals and those from asymptomatic individuals. The MR imaging–based computational analysis may therefore be a useful aid to identification of vulnerable plaques in vivo.

Measurement of left ventricular mass in rats using electrocardiogram-gated magnetic resonance imaging

1990 ◽  
Vol 258 (4) ◽  
pp. H1181-H1186 ◽  
Author(s):  
W. J. Manning ◽  
J. Y. Wei ◽  
E. T. Fossel ◽  
D. Burstein
Keyword(s):  
Magnetic Resonance ◽  
Left Ventricle ◽  
Mr Imaging ◽  
Linear Regression Analysis ◽  
Left Ventricular ◽  
Sprague Dawley ◽  
Lv Mass ◽  
Significant Difference ◽  
Aortic Leaflet

To evaluate the ability of electrocardiogram (ECG)-gated magnetic resonance (MR) imaging to assess in vivo left ventricular (LV) mass in the rat, we studied 20 healthy adult Sprague-Dawley and Fischer 344 rats and 8 additional rats that underwent scanning after induction of volume overload by aortic leaflet disruption. ECG-gated spin-echo pulse sequences were used to acquire a series of 1-mm thick modified short-axis images of the left ventricle. The area enclosed by the endocardial and epicardial borders of the left ventricle was multiplied by the interslice distance and specific gravity of myocardium to obtain calculated slice mass. Total LV mass was obtained by summing the individual slices. The calculated value for LV mass was then compared with the LV mass as determined at postmortem examination. Linear regression analysis showed an excellent correlation of MR-estimated mass (x) with autopsy-measured LV mass (y) (y = 0.90x + 65, r = 0.98). For this method intraobserved and interobserver slice correlations were 0.97 and 0.96, respectively. There was no significant difference in LV mass as determined from a series of diastolic vs. systolic images in a subset of six animals. Over a mean of 6.5 wk of observation, LV mass increased by 40% in the animals subjected to aortic leaflet disruption. These results demonstrate that MR imaging is highly accurate for the non-invasive in vivo assessment of LV mass in the adult rat.

scholarly journals A Comparative Evaluation of Rotator Cuff Injuries of the Shoulder Joint using High Resolution Ultrasound and Magnetic Resonance Imaging

2012 ◽  
Vol 10 (1) ◽  
pp. 9-14 ◽  
Author(s):  
MS Shrestha ◽  
A Alam
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Rotator Cuff ◽  
Diagnostic Accuracy ◽  
Shoulder Joint ◽  
Rotator Cuff Tears ◽  
Full Thickness ◽  
Resonance Imaging ◽  
Rotator Cuff Injuries

Introduction: Pathology of the rotator cuff is the cause of most common problems at the shoulder joint and accurate diagnosis is essential for appropriate management. High-resolution real-time ultrasonography and MRI are successful imaging modalities for both rotator cuff and non–rotator cuff disorders and have important implications in the management of rotator cuff pathologies. This study was conducted to Compare the results obtained after the evaluation of rotator cuff injuries of shoulder joint by high resolution Ultrasonography and Magnetic Resonance Imaging. Methods: 50 patients with suspected rotator cuff injuries of the shoulder joint were included in this study over a period of 2years. Patients had presented with various complaints like prolonged pain in the shoulder joint with stiffness, restriction and difficulty in movement of the shoulder joint, traumatic injuries and recurrent dislocations of the shoulder joints. Results: Mean age was 41.6years ( range 15-80 ).Maximum patients were between 41-50 years (24%). 29 were males and 21 were females. In our study diagnostic accuracy of ultrasound in rotator cuff tears was 57. 14% for full thickness tears and 58.33 for partial thickness tears. The diagnostic accuracy of ultrasound in detection of complete tear of the supraspinatus muscle was 57.14% while that of MRI was 100%. Conclusion: High resolution Ultrasound being a dynamic study can be used as the first-line investigation for rotator cuff tear. Full-thickness rotator cuff tears can be identified using ultrasound and MRI with comparable accuracy. DOI: http://dx.doi.org/10.3126/mjsbh.v10i1.6443 Medical Journal of Shree Birendra Hospital Jan-June 2011 10(1) 9-14

All-in-one magnetic resonance arthrography of the shoulder in a vertically open magnetic resonance unit

2008 ◽  
Vol 49 (8) ◽  
pp. 918-927 ◽  
Author(s):  
J. E. Vandevenne ◽  
F. Vanhoenacker ◽  
C. F. Beaulieu ◽  
A. G. Bergman ◽  
K. Butts Pauly ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Mr Imaging ◽  
Shoulder Joint ◽  
Glenohumeral Joint ◽  
Mr Arthrography ◽  
Small Sample ◽  
Dynamic Motion ◽  
Dixon Method ◽  
Resonance Unit ◽  
Injection Procedure

Background: Magnetic resonance (MR) arthrography frequently involves joint injection under imaging guidance followed by MR imaging in static positions. Purpose: To evaluate if MR arthrography of the shoulder joint can be performed in a comprehensive fashion combining the MR-guided injection procedure, static MR imaging, and dynamic motion MR imaging in a single test. Material and Methods: Twenty-three shoulder joints were injected with Gd-DTPA2- under MR guidance. Static MR imaging was performed and included a three-point Dixon method to achieve water-selective images. Dynamic motion MR imaging with and without applying pressure to the upper arm was used to evaluate glenohumeral joint instability. In 10 cases, surgical correlation was available. Results: The all-in-one MR arthrography technique was successful in all patients, and took an average time of 65 min. All but one glenohumeral injection procedure were performed with a single needle pass, and no complications were observed. Out of eight labrum tears seen with static MR imaging, seven were confirmed at surgery. In 10 cases, dynamic motion MR imaging correlated well with the surgeon's intraoperative evaluation for presence and direction of instability. Conclusion: MR arthrography of the shoulder joint using a vertically open magnet can be performed as a single comprehensive test, including the injection and the static and dynamic motion MR imaging. Good diagnostic accuracy for intraarticular lesions and glenohumeral instability was found in a small sample.

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