scholarly journals Image Fusion of Multislice Spiral CT with Magnetic Resonance Imaging (MRI) in the Diagnosis and Nursing of Malignant Bone Diseases Using ANOVA

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Meimei Luo ◽  
Run Yang ◽  
Haijie Zhang ◽  
Yi Wang ◽  
Shengmei Gao
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Sensitivity And Specificity ◽  
Nursing Care ◽  
Bone Tumor ◽  
Bone Cyst ◽  
Bone Lesions ◽  
Malignant Bone Tumor ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri

This work aimed to analyze the diagnostic value of dynamic scanning of multislice spiral computed tomography (MSCT) and magnetic resonance imaging (MRI) for benign and malignant bone tumor and nursing intervention. 108 patients with bone tumor were selected as the research objects, all of which underwent MSCT and MRI scans. The accuracy, sensitivity, and specificity of MSCT, MRI, and MSCT + MRI for identifying benign and malignant bone tumors and nursing care were calculated, as well as the diagnostic accuracy of MSCT, MRI, and MSCT + MRI for different bone tumor pathological types. The results showed that the accuracy of MSCT + MRI (97.56%) in distinguishing benign and malignant bone lesions was remarkably higher relative to that of MSCT (85.91%) and MRI (89.85%) ( P < 0.05 ). The sensitivity and specificity of MSCT + MRI (94.85%; 90.52%) in distinguishing benign and malignant bone lesions were obviously greater in contrast to those of MSCT (83.66%; 79.05%) and MRI (86.02%; 81.17%) ( P < 0.05 ). The malignant misdiagnosis rate and malignant missing report rate of MSCT + MRI in distinguishing benign and malignant bone lesions were inferior to those of MSCT and MRI notably ( P < 0.05 ). The accuracy of MSCT + MRI in distinguishing osteosarcoma, giant-cell tumor of bone (GCT), bone cyst, and osteofibrous dysplasia (OFD) was evidently higher versus that of MSCT and MRI ( P < 0.05 ). The accuracy of MSCT + MRI in distinguishing osteofibroma and ganglioneuroma was greatly higher than that of MSCT and MRI ( P < 0.05 ). The accuracy of MSCT + MRI in distinguishing osteofibroma and ganglioneuroma was 68.64% and 71.63%, respectively. In short, in contrast to the single MSCT and MRI examination, MSCT combined with MRI detection can effectively improve the accuracy of judgment for benign and malignant bone tumor lesions and nursing care and had higher sensitivity and specificity. MSCT combined with MRI had better performance in identifying osteosarcoma, GCT, bone cyst, and OFD but poor performance in osteofibroma and ganglioneuroma.

scholarly journals A study of the sensitivity and specificity of the Magnetic Resonance Imaging (MRI) technique used in the diagnosis of endometriosis versus the intraoperative appearance considered the reference standard in the diagnosis of endometriosis

2021 ◽  
Vol 28 (1) ◽  
pp. 55-61
Author(s):  
Alexandra RADU ◽  
◽  
Elvira BRATILA ◽  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Sensitivity And Specificity ◽  
Reference Standard ◽  
Resonance Imaging ◽  
First Line ◽  
Magnetic Resonance Imaging Mri ◽  
Asymptomatic Women ◽  
Bladder Invasion

Endometriosis is a gynecological pathology with chronic symptoms, which negatively affects the patient’s quality of life. The prevalence of endometriosis in asymptomatic women is between 2% and 50%, depending on the populations studied and the method of diagnosis. The severity of the symptoms as well as the probability of diagnosing endometriosis increases with age9. Because endometriosis is a gynecological condition with a nonspecific clinical picture, sometimes even asymptomatic, imaging technology can be considered the first line of diagnosis for this pathology. The main objective of this study is to evaluate the sensitivity and specificity of nuclear magnetic resonance imaging (MRI) used in the diagnosis of endometriotic lesions depending on their location, and compare the results obtained with the intraoperative appearance considered a reference standard in the diagnosis of endometriosis. Our study revealed the highest specificity for MRI in the case of endometriotic bladder invasion, respectively the highest sensitivity for endometriotic rectal nodules.

The Role of Non-Echoplanar Diffusion-Weighted Magnetic Resonance Imaging in Diagnosis of Primary Cholesteatoma and Cholesteatoma Recidivism as an Adjunct to Clinical Evaluation

2018 ◽  
Vol 127 (12) ◽  
pp. 919-925 ◽  
Author(s):  
Roman D. Laske ◽  
Thomas N. Roth ◽  
Krisztina Baráth ◽  
Bernhard Schuknecht ◽  
Alexander M. Huber ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Positive Predictive Value ◽  
Negative Predictive Value ◽  
Sensitivity And Specificity ◽  
Predictive Value ◽  
Resonance Imaging ◽  
Diffusion Weighted ◽  
Interrater Variability ◽  
Magnetic Resonance Imaging Mri

Introduction: The aim of this study was to analyze the sensitivity and specificity of non-echoplanar (non-EPI) diffusion-weighted (DW) magnetic resonance imaging (MRI) for the detection of cholesteatoma, with a focus on its value as an adjunct to clinical examination. Methods: In a prospective cohort study, 92 cases were divided into 2 groups: “clinically cholesteatoma” ( n = 79) and “clinically no cholesteatoma” ( n = 13). Non-EPI DW MRI was performed preoperatively in all cases. The presence of a cholesteatoma was assessed by clinicians otoscopically, by neuroradiologists on non-EPI DW MRI, by the surgeon intraoperatively, and finally by the pathologist postoperatively. Data analysis was performed for specificity, sensitivity, positive predictive value, negative predictive value, and interrater variability. Results: The sensitivity and specificity were 89.3% and 75%, respectively, in the “clinically cholesteatoma” group and 0% and 100% in the “clinically no cholesteatoma” group. Non-EPI DW MRI had a positive predictive value of 98.5% when cholesteatoma was suspected clinically and a negative predictive value of 84.6% when cholesteatoma was not suspected clinically. Conclusion: If cholesteatoma is suspected clinically, non-EPI DW MRI is not necessary. If there is no clinical suspicion of cholesteatoma in second-look situations, sensitivity is low and serial follow-up MRI with long intervals is advised.

scholarly journals Adult onset asynchronous multifocal eosinophilic granuloma of bone: an 11-year follow-up

2015 ◽  
Vol 4 (2) ◽  
pp. 204798161455221
Author(s):  
Benjamin Dallaudière ◽  
Joseph Kerger ◽  
Jacques Malghem ◽  
Christine Galant ◽  
Frederic E Lecouvet
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Therapeutic Approach ◽  
Eosinophilic Granuloma ◽  
Bone Lesions ◽  
Adult Onset ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
Eosinophilic Granuloma Of Bone

Multifocal eosinophilic granuloma (EG) is a rare observation within the spectrum of histiocytosis X, generally described in children. We report the case of a 33-year-old man with multifocal EG showing an asynchronous evolution of bone lesions during a follow-up of 11 years. We also present the therapeutic approach chosen for this patient and the repeated magnetic resonance imaging (MRI) examinations used to monitor the disease with a final favorable outcome.

Intraosseous Ganglion Cyst Mimicking Chondrosarcoma On MRI: A Case Report

2021 ◽  
Author(s):  
Eunhye Seo ◽  
Yu Sung Yoon ◽  
Hee Kyung Kim
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Case Report ◽  
Bone Tumor ◽  
Ganglion Cyst ◽  
Malignant Bone Tumor ◽  
Resonance Imaging ◽  
Olecranon Process ◽  
Magnetic Resonance Imaging Mri

Abstract BackgroundThe intraosseous ganglia is a benign cyst, rarely locate in the olecranon process. As intraosseous ganglia can mimic malignant bone tumor, computed tomography (CT) is improtant for diagnosis even when magnetic resonance imaging (MRI) suggests malignant bone tumor such as chondrosarcoma.Case presentationIn this paper, we report a 42-year-old woman with intraosseous ganglia in the olecranon process of the ulna. She complained pain in right elbow for 3 weeks. MRI revealed an intraosseous mass which initially diagnosed as chondrosarcoma. However, followed computed tomography (CT) demonstrated scattered intralesional gas and no underlying mineralization, and we can exclude chondrosarcoma from diagnosis. ConclusionsThe intraosseous ganglia can mimic bone tumor in MRI, therefore CT is essential for accurate characterization of bone tumor. Even if MR imaging strongly suggests chondrosarcoma of the bone, CT should be performed as additional study.

scholarly journals Intraosseous ganglion cyst mimicking chondrosarcoma on MRI: a case report

2022 ◽  
Vol 27 (1) ◽  
Author(s):  
Eun Hye Seo ◽  
Yu Sung Yoon ◽  
Jang Gyu Cha ◽  
Hee Kyung Kim
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Bone Tumor ◽  
Ganglion Cyst ◽  
Malignant Bone Tumor ◽  
Resonance Imaging ◽  
Case Presentation ◽  
Olecranon Process ◽  
Magnetic Resonance Imaging Mri

Abstract Background The intraosseous ganglia is a benign cyst, rarely locate in the olecranon process. As intraosseous ganglia can mimic malignant bone tumor, computed tomography (CT) is important for diagnosis even when magnetic resonance imaging (MRI) suggests malignant bone tumor, such as chondrosarcoma. Case presentation In this paper, we report a 42-year-old woman with intraosseous ganglia in the olecranon process of the ulna. She complained pain in right elbow for 3 weeks. MRI revealed an intraosseous mass which initially diagnosed as chondrosarcoma. However, followed computed tomography (CT) demonstrated scattered intralesional gas and no underlying mineralization, and we can exclude chondrosarcoma from diagnosis. Conclusions The intraosseous ganglia can mimic bone tumor in MRI; therefore, CT is essential for accurate characterization of bone tumor. Even if MR imaging strongly suggests chondrosarcoma of the bone, CT should be performed as additional study.

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