Comparison of Ultrasonography with other Imaging Modalities for Detection of Adnexal Torosion: A Systematic Review

2021 ◽  
Vol 15 (11) ◽  
pp. 2840-2842
Author(s):  
Kiran Shakeel ◽  
Syeda Khadija-Tul-Sughra Murrium ◽  
Maria Yaseen ◽  
Alia Iqbal ◽  
Sara Yaseen ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Imaging Modality ◽  
Meta Analysis ◽  
Imaging Modalities ◽  
Test Accuracy ◽  
Index Test ◽  
Adnexal Torsion ◽  
Resonance Imaging

Background: Adnexal Torsion (AT), serious emergency of gynecology, frequently shows among nonspecific signs prominent to late analysis. Aim: To compare the test accuracy of Ultrasound, Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) for diagnosis of adnexal torsion. Methodology: We observed google scholar as well as Radiographics key till Dec 2019. Assortment standards studies report upon Imaging Modality accuracy (index test) within paediatric and adult females alleged of adnexal torsion matched by clinical analysis or usual clinical or radiological follow up duration till symptoms firmness (reference standard). Results: We mark off 3836 references, comprised 18 Studies (1654 females, 665-cases), as well as comprised 15 into meta analyses, ultrasound pooled-sensitivity (n =12, 1187 females) was 0.79 (95% CI= 0.63 to 0.92) as well as specificity was 0.76 (95% CI= 0.54 to 0.93), by means of positive as well as negative probability fractions 4.35 (95% CI= 2.03 to 9.32) and 0.29 (95% CI= 0.13 to 0.66), correspondingly. By Doppler Ultrasound (n=7, 845 females) produced alike and specificity (0.88, 95% CI= 0.72 to 1.00) and sensitivity (0.80, 95% CI= 0.67 to 0.93). For magnetic resonance imaging (n=3, 99 females), pooled-sensitivity was 0.81 (95% CI=0.63 to 0.91) as well as specificity was 0.91 (95% CI= 0.80 to 0.96). Meta-analysis for Computed Tomography was impossible by 2 case control-studies as well as one cohort-study (n=3, 232 females). Its range of sensitivity was 0.74 to 0.95 as well as specificity 0.80 to 0.90. Conclusions: As a first line analytic examination for alleged AT, ultrasound has good performance. Increment in quantity of AT cases needs precise, rapid, as well as correct analytic extent. It has been utmost popular method as allied with further Imaging Modalities. MRI might compromise better specificity for investigating intricate morphology of ovary, nonetheless further proof is wanted. Beside with medical doubt as well as approximations. This study will offer sufficient appreciated evidence to understand sonographic markers impact during OT analysis precisely. Keywords: Adnexa, Computed Tomography, Doppler, Magnetic Resonance Imaging, Meta-analysis, Ovary, Test Accuracy,

scholarly journals Imaging Modalities for Diagnosis of Deep Pelvic Endometriosis: Comparison between Trans-Vaginal Sonography, Rectal Endoscopy Sonography and Magnetic Resonance Imaging. A Head-to-Head Meta-Analysis

Diagnostics ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 225 ◽  
Author(s):  
Marco Noventa ◽  
Marco Scioscia ◽  
Michele Schincariol ◽  
Francesco Cavallin ◽  
Giovanni Pontrelli ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Diagnostic Accuracy ◽  
Meta Analysis ◽  
Imaging Modalities ◽  
Transvaginal Sonography ◽  
Test Accuracy ◽  
Pelvic Endometriosis ◽  
Resonance Imaging ◽  
Deep Pelvic Endometriosis

Objectives: A meta-analysis, with a head-to-head approach, was carried out to compare the three most common techniques for a deep pelvic endometriosis (DPE) diagnosis. We focused on: transvaginal-sonography (TVS), magnetic-resonance imaging (MRI), and rectal-endoscopy-sonography (RES). Methods: Electronic databases were searched from their inception until December 2018. All prospective and well-defined retrospective studies carried out in tertiary referral centers were considered. This review was reported following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and Synthesizing Evidence from Diagnostic Accuracy Tests (SEDATE) guidelines. We considered only papers in which at least two imaging modalities were compared in the same set of patients (head-to-head approach). Meta-analysis of diagnostic test accuracy (DTA) was performed separately for each location of interest. Bivariate or univariate approach has been applied when appropriate. We analyze the DTA of TVS vs. MRI, TVS vs. RES, and MRI vs. RES. Results: Our meta-analysis (17 studies included) showed high-to-moderate DTA of TVS for all endometriosis locations (apart from recto-vaginal septum (RVS)) that were not statistically different from MRI and RES for those localized in the posterior compartment. RES results were more accurate than MRI for RS lesions but less accurate than TVS for other pelvic locations, except for RVS. Conclusions: All approaches provide good accuracy with specific strong points. Ultrasonography demonstrated a diagnostic accuracy not inferior to MRI and RES; therefore, it must be considered the primary approach for DPE diagnosis. MRI has to be considered as a valuable approach in settings where highly skilled sonographers are not available. Keypoints: (1) We confirmed the non-inferiority of TVS compared to MRI and RES for the diagnosis of specific pelvic anatomic location of endometriosis lesions. (2) Ultrasonography could be considered the primary approach for DPE diagnosis (less invasive than RES and less expensive than MRI). (3) MRI has to be considered as a valuable approach in settings where skilled sonographers are not available.

scholarly journals Imaging Modalities for Evaluation of Intestinal Obstruction

2021 ◽  
Author(s):  
David W. Nelms ◽  
Brian R. Kann
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Imaging Modality ◽  
Methodological Approach ◽  
Imaging Modalities ◽  
Resonance Imaging ◽  
Rectal Surgeon ◽  
Contrast Imaging ◽  
Plain Radiographs

AbstractIt is essential for the colon and rectal surgeon to understand the evaluation and management of patients with both small and large bowel obstructions. Computed tomography is usually the most appropriate and accurate diagnostic imaging modality for most suspected bowel obstructions. Additional commonly used imaging modalities include plain radiographs and contrast imaging/fluoroscopy, while less commonly utilized imaging modalities include ultrasonography and magnetic resonance imaging. Regardless of the imaging modality used, interpretation of imaging should involve a systematic, methodological approach to ensure diagnostic accuracy.

scholarly journals Agreement of Magnetic Resonance Imaging With Computed Tomography in the Assessment for Acute Skull Fractures in a Canine and Feline Cadaver Model

2021 ◽  
Vol 8 ◽  
Author(s):  
Silke Hecht ◽  
Kimberly M. Anderson ◽  
Aude Castel ◽  
John F. Griffin ◽  
Adrien-Maxence Hespel ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Head Trauma ◽  
Imaging Modality ◽  
Small Animal ◽  
Skull Fractures ◽  
Resonance Imaging ◽  
Significant Difference ◽  
Mri Sequences

Computed tomography (CT) is the imaging modality of choice to evaluate patients with acute head trauma. However, magnetic resonance imaging (MRI) may be chosen in select cases. The objectives of this study were to evaluate the agreement of MRI with CT in the assessment for presence or absence of acute skull fractures in a canine and feline cadaver model, compare seven different MRI sequences (T1-W, T2-W, T2-FLAIR, PD-W, T2*-W, “SPACE” and “VIBE”), and determine agreement of four different MRI readers with CT data. Pre- and post-trauma CT and MRI studies were performed on 10 canine and 10 feline cadaver heads. Agreement of MRI with CT as to presence or absence of a fracture was determined for 26 individual osseous structures and four anatomic regions (cranium, face, skull base, temporomandibular joint). Overall, there was 93.5% agreement in assessing a fracture as present or absent between MRI and CT, with a significant difference between the pre and post trauma studies (99.4 vs. 87.6%; p < 0.0001; OR 0.042; 95% CI 0.034–0.052). There was no significant difference between dogs and cats. The agreement for the different MRI sequences with CT ranged from 92.6% (T2*-W) to 94.4% (PD-W). There was higher agreement of MRI with CT in the evaluation for fractures of the face than other anatomic regions. Agreement with CT for individual MRI readers ranged from 92.6 to 94.7%. A PD-W sequence should be added to the MR protocol when evaluating the small animal head trauma patient.

scholarly journals Comparison of Diagnostic Medical Sonography, Computed Tomography, Magnetic Resonance Imaging, and Contrast-Enhanced Ultrasound in the Investigation of Renal Lesions

2019 ◽  
Vol 36 (1) ◽  
pp. 37-44
Author(s):  
Jessica T. Prince
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Imaging Techniques ◽  
Imaging Modalities ◽  
Contrast Enhanced Ultrasound ◽  
Resonance Imaging ◽  
Renal Masses ◽  
Renal Lesions ◽  
Contrast Enhanced

This review explores the classification and evaluation of suspicious renal lesions across several radiologic imaging modalities. Diagnostic medical sonography (DMS), computed tomography (CT), magnetic resonance imaging (MRI), and contrast-enhanced ultrasound (CEUS) are the primary modalities used to investigate questionable lesions found within the kidneys. Renal masses may range from completely benign to malignant. They are classified based on many different features and characteristics. These lesions may be simple cystic, complex cystic, or solid in nature. Masses may also exhibit varying degrees of vascularity, septations, and calcifications. The discussed imaging modalities have varying strengths, limitations, and implications for use. Imaging techniques may be used independently or in conjunction to best diagnose and treat a patient with a suspicious renal mass. The aim of this review was to describe the diagnostic value of the imaging modalities (DMS, CT, MRI, and CEUS) and their role in the evaluation of suspicious renal lesions.

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