scholarly journals MR arthrography of the shoulder; correlation with arthroscopy

2021 ◽  
Vol 10 (11) ◽  
pp. 205846012110620
Author(s):  
Janni Jensen ◽  
Maja T Kristensen ◽  
Lene Bak ◽  
Søren S Kristensen ◽  
Ole Graumann
Keyword(s):  
Sensitivity And Specificity ◽  
Gold Standard ◽  
Shoulder Dislocation ◽  
Correct Diagnosis ◽  
Mr Arthrography ◽  
Diagnostic Value ◽  
Rotator Cuff Tears ◽  
Common Finding ◽  
Labral Tears ◽  
Shoulder Arthritis

Background Shoulder dislocation is a common injury, particularly in the younger population. Common long-term sequelae include pain, recurrence, and shoulder arthritis. Immediate and correct diagnosis following shoulder dislocation is key to achieving optimum outcomes. Although magnetic resonance arthrography (MRA) is frequently used for diagnosing shoulder instabilities, arthroscopy is still considered the gold standard. Purpose This study aims to compare the diagnostic value of arthroscopy and MRA of the shoulder joint. Materials and methods This retrospective study estimates the sensitivity and specificity of MRA of the shoulder. Data from patients who had undergone shoulder MRA and subsequent arthroscopy during a 5-year period were retrospectively collected. Sensitivity and specificity were calculated using the arthroscopic findings as the gold standard. Moreover, diagnostic accuracy was estimated using McNemar’s test. Results In total, 205 cases were included from which 372 pathological findings were uncovered during the arthroscopic procedures as opposed to 360 findings diagnosed from the MRA images. The glenoid labral tear was the most common finding reported by MRA and arthroscopy. For the detection of glenoid labral tears on MRA, the sensitivity was 0.955 but with eight missed lesions; the specificity was 0.679. Capsular tears, rotator cuff tears, and cartilage lesions proved the most difficult to correctly diagnose using MRA with sensitivities of 0.2, 0.346, and 0.366, respectively. Conclusions With a sensitivity of 95%, MRA is a valuable diagnostic tool for assessing shoulder instabilities, particularly when diagnosing labral lesions, including bony and soft-tissue Bankart lesions. Sensitivities and specificities for other glenohumeral lesions are less convincing, however.

Accuracy of MRI in the Differential Diagnosis of Wilms Tumor

2021 ◽  
Vol 15 (8) ◽  
pp. 2057-2059
Author(s):  
Maham Ashraf ◽  
Aysha Anjum ◽  
Eisha Tahir ◽  
Amber Goraya ◽  
Rabia Aqeel
Keyword(s):  
Differential Diagnosis ◽  
Diagnostic Accuracy ◽  
Gold Standard ◽  
Wilms Tumor ◽  
Correct Diagnosis ◽  
Renal Tumors ◽  
Common Finding ◽  
Predictive Values ◽  
Female Ratio ◽  
Male Predominance

Background & Objective: Renal tumors are a common finding in diagnostic imaging; these lesions usually are solid or cystic, benign or malignant, and the correct diagnosis may be difficult. The current study aims at to determine the diagnostic accuracy of magnetic resonance imaging for the diagnosis of Wilms tumor taking histopathology as gold standard. Methodology: This cross-sectional study was carried at the Department of Radiology, The Children’s Hospital & Institute of Child Health Lahore over 6 months from March 2019 to September 2019. The study involved 125 children of both genders aged between 2 years to 14 years presenting with a neoplastic mass in the retroperitoneum on ultrasound abdomen during initial workup. These children were assessed on MRI for the diagnosis of Wilms tumor. Later the diagnosis was confirmed on histopathology which was taken as gold standard and the diagnosis of MRI was judged accordingly as true/false and positive/negative. A written informed consent was obtained from every patient. Results: The mean age of the children was 5.8±3.9 years having a male predominance with male to female ratio of 1.8:1. Wilms tumor was suspected in 13 (10.4%) children on MRI. The diagnosis of Wilms tumor was confirmed in 13 (10.4%) children on histopathology. MRI was found to be 76.9% sensitive, 97.3% specific and 95.2% accurate with positive and negative predictive values of 76.9% and 97.3% respectively. Conclusion: In the present study, MRI was found to be 95.2% accurate in the differential diagnosis of Wilms tumor in children presenting with retroperitoneal mass which along with its non-invasive and radiation free nature advocates the preferred use of MRI in the diagnostic evaluation of such children in future oncologic practice. Keywords: Retroperitoneal Tumor, Wilms Tumor, MRI, Diagnostic Accuracy

scholarly journals Diagnostic accuracy of MRA and MRI for the bursal-sided partial-thickness rotator cuff tears: a meta-analysis

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Tao Huang ◽  
Jian Liu ◽  
Yupeng Ma ◽  
Dongsheng Zhou ◽  
Liang Chen ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Meta Analysis ◽  
Characteristic Curve ◽  
Mr Arthrography ◽  
Diagnostic Value ◽  
Rotator Cuff Tears ◽  
Cochrane Library ◽  
Predictive Values ◽  
Partial Thickness ◽  
Sensitivity Specificity

Abstract Background Numerous quantitatively studies have focused on the diagnosis of bursal-sided partial-thickness rotator cuff tears (RCTs); however, the accuracy of magnetic resonance imaging (MRI) and MR arthrography (MRA) remains inconclusive. This study was performed systematically to compare the diagnostic value of MRA and MRI for the bursal-sided partial-thickness RCTs. Methods Three electronic databases, PubMed, Embase, and Cochrane Library, were utilized to retrieve articles comparing the diagnostic value of MRA and MRI for detecting bursal-sided partial-thickness RCTs. After screening and diluting out the articles that met the inclusion criteria to be used for statistical analysis, the pooled evaluation indexes include sensitivity, specificity, positive and negative predictive values, diagnostic odds ratio (DOR), and the area under the receiver operating characteristic curve (AUC). Results Twelve studies involving 1740 patients and 1741 shoulders were identified. The pooled sensitivity, specificity, DOR, and AUC of MRA to diagnose bursal-sided partial-thickness RCTs were 0.77 (95% CI, 0.67–0.85), 0.98 (95% CI, 0.95–0.99), 73.01 (95% CI, 35.01–152.26), and 0.88 (95% CI, 0.85–0.91), respectively. The pooled sensitivity, specificity, DOR, and AUC of MRI were 0.77 (95% CI, 0.66–0.86) and 0.96 (95% CI, 0.81–0.99), and 37.12 (95% CI, 8.08–170.64) and 0.82 (95% CI, 0.78–0.85), respectively. Conclusions This meta-analysis reveals that MRA and MRI have similar diagnostic value for the diagnosis of bursal-sided partial-thickness rotator cuff tears.

scholarly journals Diagnostic Value of MRA and MRI for The Articular-Sided Partial-Thickness Rotator Cuff Tears: A Meta-Analysis

2020 ◽  
Author(s):  
Lianxin Li ◽  
Jinlei Dong ◽  
Qinghu Li ◽  
Jinye Dong ◽  
Dongsheng Zhou ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Meta Analysis ◽  
Characteristic Curve ◽  
Mr Arthrography ◽  
Diagnostic Value ◽  
Rotator Cuff Tears ◽  
Cochrane Library ◽  
Initial Examination ◽  
Partial Thickness ◽  
Sensitivity Specificity

Abstract Background: This study aims to compare the diagnostic accuracy of magnetic resonance imaging (MRI) and MR arthrography (MRA) for the articular-sided partial-thickness rotator cuff tear (PTRCT).Methods: Three electronic databases, PubMed/Medline, Embase and Cochrane Library, were utilized to retrieve articles comparing the diagnostic value of MRA and MRI for detecting articular-sided PTRCTs. The pooled statistical indexes included sensitivity, specificity, positive/negative predictive value, diagnostic odds ratio (DOR) and the area under receiver operating characteristic curve (AUC). Results: Eleven studies involving 1703 patients and 1704 shoulders were included. The pooled sensitivity, specificity, DOR and AUC and their 95% CIs of MRA to diagnose articular-sided PTRCTs were 0.81 (95% CI, 0.65-0.90), 0.96 (95% CI, 0.91-0.98), 68.14 (95% CI, 33.20-139.84) and 0.96 (95% CI, 0.94-0.97), respectively. The pooled sensitivity, specificity, DOR and AUC and their 95% CIs of MRI were 0.78 (95% CI, 0.65-0.87) and 0.97 (95% CI, 0.84-0.99), 47.82 (95% CI, 8.29-275.89) and 0.89 (95% CI, 0.86-0.92), respectively.Conclusions: This meta-analysis reveals that MRA has a better diagnostic value than that of MRI for the diagnosis of articular-sided partial-thickness rotator cuff tears, but only small improvement of sensitivity. Considering the price and invasion of MRA, MRI is recommended as an initial examination to detect patients suspected with articular-side partial-thickness rotator cuff tears.

ROLE OF MRI IN DIAGNOSIS OF ROTATOR CUFF TEAR ASSUMING ARTHROSCOPY AS GOLD STANDARD

2019 ◽  
Vol 3 (9) ◽  
Author(s):  
Dr. Chaturbhuj Prasad Swarnkar ◽  
Dr. Shiv Raj Meena
Keyword(s):  
Rotator Cuff ◽  
Positive Predictive Value ◽  
Negative Predictive Value ◽  
Shoulder Pain ◽  
Sensitivity And Specificity ◽  
Predictive Value ◽  
Gold Standard ◽  
Shoulder Joint ◽  
Rotator Cuff Tears ◽  
Arthroscopic Findings

Background- Rotator cuff tears are one of the most common causes of shoulder pain for which patients seek treatment. As in our daily work, the shoulder joint is the most frequently used, there is higher chance of having shoulder joint injury. The aim of the study is to compare the efficacy of MRI in diagnosing shoulder pathologies in comparison to arthroscopy, considering arthroscopy as the gold standard. Methods- 30 Patient with suspected rotator cuff injury patients, between 18-80 years of age was included in the study. MRI of the shoulder joint was done followed by shoulder arthroscopy. The data collected was analysed for the significant correlation between MRI of shoulder and arthroscopic findings by kappa statistics. Results- The accuracy of MRI in diagnosis of rotator cuff partial tears, was 90%, while sensitivity and specificity was 100.00%, 78.57% and positive predictive value was 84.21% and negative predictive value was 100.00% and accuracy of MRI in diagnosis of rotator cuff full tears, was 86.67%, while sensitivity and specificity was 63.64%, 100.00%) and positive predictive value was 100.00% and negative predictive value was 82.61% in our study. Conclusion- Our study demonstrates a high sensitivity and specificity for the MRI diagnosis of both partial and full thickness rotator cuff tears and good correlation with arthroscopic findings. Keywords: Rotator cuff, Shoulder pain, Arthroscopy, MRI.

Value of radiographic measurements in depiction of glenohumeral and acromial anatomical changes in patients with subacromial impingement syndrome and rotator cuff tears

2018 ◽  
pp. 98-108
Author(s):  
V. E. Gazhonova ◽  
Е. M. Bachurina ◽  
M. V. Emelianenko ◽  
I. E. Popova ◽  
T. A. Soina ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Mr Arthrography ◽  
Diagnostic Value ◽  
Rotator Cuff Tears ◽  
Subacromial Impingement Syndrome ◽  
Control Group ◽  
Clinical Value ◽  
Mean Values ◽  
Radiographic Measurements ◽  
And Control

The purpose.Optimization of radiographic study of the shoulder in patients with SIS and estimation of the clinical value of radiographic measurements in SIS diagnosis and rotator cuff tears (RCT).Materials and methods.128 patients with a painful shoulder (67 women, 61 men), mean age 57.3 ± 12.8 y.o. and 35 patients without shoulder pain mean age 56 ± 10.4 y.o. underwent a complex study including radiography, MRI, MDCTor MR-arthrography, arthroscopy. Special angles and distances were estimated on a Radiographic Work Station by 2 radiologists (acromion tilt (AT), acromion slope, inferior acromion protrusion, acromio-humeral distance, acromio-humeral index, critical shoulder angle (CSA), lateral acromion angle, transverse acromion angle). Mean values of these parameters were compared between patients with SIS and control group, and between patients with RCT and without . Test-retest reproducibility and inter rater agreement were calculated with Kohen’s kappa. Diagnostic value of the most informative parameters was compared with estimation of AUC under the ROC curve.Results.CSA and AT demonstrated independence with age and excellent test-retest reproducibility. In SIS patients mean values of CSA were statistically higher (35.78 ± 4.64°), AT values – lower (25.90 ± 4.27°), then in controls. In all patients with CSA more then 35, the frequency of RCT was 74%. In patients with RCT were detected higher values of CSA (36.70 ± 2.61°) and lower values of AT (23.67 ± 3.07°), then in patients without tears. Lateral acromion angle (acromion type) demonstrated correlation with patient’s age and moderate reproducibility in test-retest studies.Conclusion.AT (measured on the outlet X-ray view) and CSA (measured in direct views) could be recommended for clinical use for evaluation of patients with SIS and prognosing RCT.

scholarly journals MRA improves sensitivity than MRI for the articular-sided partial-thickness rotator cuff tears

2021 ◽  
Vol 104 (4) ◽  
pp. 003685042110599
Author(s):  
Lianxin Li ◽  
Jinlei Dong ◽  
Qinghu Li ◽  
Jinye Dong ◽  
Bingzhi Wang ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Meta Analysis ◽  
Characteristic Curve ◽  
Mr Arthrography ◽  
Diagnostic Odds Ratio ◽  
Diagnostic Value ◽  
Rotator Cuff Tears ◽  
Cochrane Library ◽  
Partial Thickness ◽  
Sensitivity Specificity

Background: This study aims to compare the diagnostic accuracy of magnetic resonance imaging (MRI) and MR arthrography (MRA) for the articular-sided partial-thickness rotator cuff tear (PTRCT). Methods: Three electronic databases, PubMed/Medline, Embase and Cochrane Library, were utilized to retrieve articles comparing the diagnostic value of MRA and MRI for detecting articular-sided PTRCTs. The pooled statistical indexes included sensitivity, specificity, positive/negative predictive value, diagnostic odds ratio (DOR) and the area under the receiver operating characteristic curve (AUC). Results: Eleven studies involving 1703 patients and 1704 shoulders were included. The pooled sensitivity, specificity, DOR and AUC and their 95% CIs of MRA to diagnose articular-sided PTRCTs were 0.81 (95% CI, 0.65–0.90), 0.96 (95% CI, 0.91–0.98), 68.14 (95% CI, 33.20–139.84) and 0.96 (95% CI, 0.94–0.97), respectively. The pooled sensitivity, specificity, DOR and AUC and their 95% CIs of MRI were 0.78 (95% CI, 0.65–0.87) and 0.97 (95% CI, 0.84–0.99), 47.82 (95% CI, 8.29–275.89) and 0.89 (95% CI, 0.86–0.92), respectively. Conclusions: This meta-analysis reveals that MRA has a better diagnostic value than that of MRI for the diagnosis of articular-sided partial-thickness rotator cuff tears because of an improvement of sensitivity.

scholarly journals Evaluation of HSG and SIS Diagnostic Value in Comparison to Hysteroscopy to Detect Intrauterine Abnormalities in Infertile Women in Iran

2021 ◽  
Vol 8 (3) ◽  
Author(s):  
Nazari L ◽  
◽  
Boroujeni PT ◽  
Keyword(s):  
Sensitivity And Specificity ◽  
Predictive Value ◽  
Gold Standard ◽  
Uterine Cavity ◽  
High Sensitivity ◽  
Diagnostic Odds Ratio ◽  
Diagnostic Value ◽  
Infertile Women ◽  
Intrauterine Abnormalities ◽  
Sensitivity Specificity

Objective: Hysteroscopy is the gold standard in evaluation of uterine cavity. However, being invasive and its possible adverse effects have reduced popularity of hysteroscopy and clinicians have always been looking for a valid alternative for hysteroscopy. In the current study, we aimed to compare diagnostic value of Saline induced Sonography with HSG in diagnosis of intrauterine abnormalities. Material and Method: We performed a retrospective study on 81 infertile women who underwent hysteroscopy, SIS, and HSG at Taleghani infertility center during their IVF treatment course. Polyp, fibroids, adhesion and septate uterus were considered as abnormality. We reported agreement percent, Kappa, sensitivity, specificity, Area Under Curve, Diagnostic Odds Ratio, Positive Predictive Value, and Negative Predictive value for both SIS and HSG. Results: Total agreement between SIS and hysteroscopy was 85.1, while it was 23.4 for HSG. We also observed considerably higher Kappa for SIS (80.1%) than HSG (15.5%). Overall sensitivity and specificity of SIS for diagnosis of all type of anomaly including both uterine abnormalities and Acquired uterine pathologies was 90.1% (95% CI= 80.7, 95.9) and 90.0% (95% CI= 55.5, 99.7). Meanwhile overall sensitivity and specificity of Hysterosalpingography where hysteroscopy was considered as the gold standard was 54.9 (42.7, 66.8) and 50.0 (18.7, 81.3). Conclusion: SIS is more sensitive tools than HSG for diagnosis of intrauterine abnormalities and could be considered one of the best alternative of hysteroscopy. It provides more accurate detail diagnostic information with high sensitivity and specificity.

Diagnostic Value of Non-Invasive Prenatal Screening of β-thalassemia by Cell Free Fetal DNA and Fetal NRBC

2019 ◽  
Vol 19 (2) ◽  
pp. 105-111
Author(s):  
Nadia Shafei ◽  
Mohammad Saeed Hakhamaneshi ◽  
Massoud Houshmand ◽  
Siavash Gerayeshnejad ◽  
Fardin Fathi ◽  
...  
Keyword(s):  
Sensitivity And Specificity ◽  
Multiple Displacement Amplification ◽  
Diagnostic Value ◽  
Diagnostic Methods ◽  
Beta Thalassemia ◽  
Non Invasive ◽  
Fetal Dna ◽  
Prenatal Diagnostic ◽  
Cell Free Fetal Dna ◽  
Invasive Techniques

Background: Beta thalassemia is a common disorder with autosomal recessive inheritance. The most prenatal diagnostic methods are the invasive techniques that have the risk of miscarriage. Now the non-invasive methods will be gradually alternative for these invasive techniques. Objective: The aim of this study is to evaluate and compare the diagnostic value of two non-invasive diagnostic methods for fetal thalassemia using cell free fetal DNA (cff-DNA) and nucleated RBC (NRBC) in one sampling community. Methods: 10 ml of blood was taken in two k3EDTA tube from 32 pregnant women (mean of gestational age = 11 weeks), who themselves and their husbands had minor thalassemia. One tube was used to enrich NRBC and other was used for cff-DNA extraction. NRBCs were isolated by MACS method and immunohistochemistry; the genome of stained cells was amplified by multiple displacement amplification (MDA) procedure. These products were used as template in b-globin segments PCR. cff-DNA was extracted by THP method and 300 bp areas were recovered from the agarose gel as fetus DNA. These DNA were used as template in touch down PCR to amplify b-globin gen. The amplified b-globin segments were sequenced and the results compared with CVS resul. Results: The data showed that sensitivity and specificity of thalassemia diagnosis by NRBC were 100% and 92% respectively and sensitivity and specificity of thalassemia diagnosis by cff-DNA were 100% and 84% respectively. Conclusion: These methods with high sensitivity can be used as screening test but due to their lower specificity than CVS, they cannot be used as diagnostic test.

scholarly journals Sensitivity and Specificity of MRIs in the Identification of Hip Labral Tears

2021 ◽  
Vol 37 (1) ◽  
pp. e76
Author(s):  
Peter Maiers ◽  
Sophie Rosenberg ◽  
Arya narayanan ◽  
Christopher Curless
Keyword(s):  
Sensitivity And Specificity ◽  
Labral Tears

scholarly journals Comparing the Diagnostic Value of Serum D-Dimer to CRP and IL-6 in the Diagnosis of Chronic Prosthetic Joint Infection

2020 ◽  
Vol 9 (9) ◽  
pp. 2917
Author(s):  
Thomas Ackmann ◽  
Burkhard Möllenbeck ◽  
Georg Gosheger ◽  
Jan Schwarze ◽  
Tom Schmidt-Braekling ◽  
...  
Keyword(s):  
Sensitivity And Specificity ◽  
Joint Infection ◽  
Revision Arthroplasty ◽  
Preoperative Assessment ◽  
Diagnostic Value ◽  
Musculoskeletal Infection ◽  
Prosthetic Joint ◽  
The Individual ◽  
Low Sensitivity ◽  
D Dimer

Introduction: D-dimer is a diagnostic criterion for periprosthetic joint infection (PJI) of the Musculoskeletal Infection Society (MSIS) in 2018. The aim of this study was to evaluate the serum D-dimer values in comparison to C-reactive protein (CRP) and interleukin-6 (IL-6) for the diagnosis of PJI. Materials and Methods: We included 119 patients (50 women, 69 men; 71 knees, 48 hips) undergoing revision arthroplasty with preoperative assessment of CRP, IL-6, and serum D-dimer. Cases were classified as infected or aseptic based on the MSIS criteria of 2018. Receiver operating curves and Youden’s index were used to define an ideal cut-off value and sensitivity and specificity for the individual parameters, and respective combinations were calculated using cross-tables. Results: The median D-dimer level (2320 vs. 1105 ng/mL; p < 0.001), the median CRP level (4.0 vs. 0.5 mg/dL; p < 0.001), and the median IL-6 level (21.0 vs. 5.0 pg/mL; p < 0.001) were significantly higher in the group of PJI compared to the group with aseptic failure. The calculated optimal cut-off values were 2750 ng/mL (AUC 0.767) for D-dimer, 1.2 mg/dL (AUC 0.914) for CRP, and 10.0 pg/mL (AUC 0.849) for IL-6. D-dimer showed a sensitivity of 38% and specificity of 94%, whereas the CRP and IL-6 had sensitivities of 88% and 76%, and specificities of 87% and 92%, respectively. Conclusion: In comparison with CRP and IL-6, serum D-dimer showed low sensitivity and specificity in our cohort. While CRP and IL-6 combination had the highest sensitivity, a combination of Il-6 and D-dimer or CRP and IL-6 had the highest specificity.

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