Diagnostic Performance of Magnetic Resonance Imaging in the Pretreatment Evaluation of Invasive Cervical Carcinoma

Background and Purpose: Pediatric nontraumatic intracerebral hemorrhage accounts for half of stroke in children. Early diagnostic of the causative underlying lesion is the first step toward prevention of hemorrhagic recurrence. We aimed to investigate the performance of arterial spin labeling sequence (ASL) in the acute phase etiological workup for the detection of an arteriovenous shunt (AVS: including malformation and fistula), the most frequent cause of pediatric nontraumatic intracerebral hemorrhage. Methods: Children with a pediatric nontraumatic intracerebral hemorrhage between 2011 and 2019 enrolled in a prospective registry were retrospectively included if they had undergone ASL-magnetic resonance imaging before any etiological treatment. ASL sequences were reviewed using cerebral blood flow maps by 2 raters for the presence of an AVS. The diagnostic performance of ASL was compared with admission computed tomography angiography, other magnetic resonance imaging sequences including contrast-enhanced sequences and subsequent digital subtraction angiography. Results: A total of 121 patients with pediatric nontraumatic intracerebral hemorrhage were included (median age, 9.9 [interquartile range, 5.8–13]; male sex 48.8%) of whom 76 (63%) had a final diagnosis of AVS. Using digital subtraction angiography as an intermediate reference, visual ASL inspection had a sensitivity and a specificity of, respectively, 95.9% (95% CI, 88.5%–99.1%) and 79.0% (95% CI, 54.4%–94.0%). ASL had a sensitivity, specificity, and accuracy of 90.2%, 97.2%, and 92.5%, respectively for the detection of the presence of an AVS, with near perfect inter-rater agreement (κ=0.963 [95% CI, 0.912–1.0]). The performance of ASL alone was higher than that of other magnetic resonance imaging sequences, individually or combined, and higher than that of computed tomography angiography. Conclusions: ASL has strong diagnostic performance for the detection of AVS in the initial workup of intracerebral hemorrhage in children. If our findings are confirmed in other settings, ASL may be a helpful diagnostic imaging modality for patients with pediatric nontraumatic intracerebral hemorrhage. REGISTRATION: URL: https://www.clinicaltrials.gov ; Unique identifiers: 3618210420, 2217698.

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Magnetic resonance imaging of cervical carcinoma using an endorectal surface coil

European Journal of Radiology ◽

10.1016/j.ejrad.2014.02.011 ◽

2014 ◽

Vol 83 (7) ◽

pp. 1030-1035 ◽

Cited By ~ 3

Author(s):

Kerstin A. Brocker ◽

Céline D. Alt ◽

Gerhard Gebauer ◽

Christof Sohn ◽

Peter Hallscheidt

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Cervical Carcinoma ◽

Surface Coil ◽

Resonance Imaging ◽

Endorectal Surface Coil

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SAT0086 Evaluation of diagnostic performance of magnetic resonance imaging (MRI) and ultrasound (US) toward early rheumatoid arthritis from nagasaki early arthritis cohort

10.1136/annrheumdis-2018-eular.6534 ◽

2018 ◽

Author(s):

A. Takatani ◽

M. Tamai ◽

N. Ohki ◽

Y. Nakashima ◽

Y. Endo ◽

...

Keyword(s):

Rheumatoid Arthritis ◽

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Early Rheumatoid Arthritis ◽

Diagnostic Performance ◽

Early Arthritis ◽

Resonance Imaging ◽

Magnetic Resonance Imaging Mri

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Magnetic Resonance Imaging for Surveillance of Hepatocellular Carcinoma: A Systematic Review and Meta-Analysis

Diagnostics ◽

10.3390/diagnostics11091665 ◽

2021 ◽

Vol 11 (9) ◽

pp. 1665

Author(s):

Dong Hwan Kim ◽

Sang Hyun Choi ◽

Ju Hyun Shim ◽

So Yeon Kim ◽

Seung Soo Lee ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Hepatocellular Carcinoma ◽

Magnetic Resonance ◽

Sensitivity And Specificity ◽

Diagnostic Performance ◽

Early Stage ◽

Meta Analysis ◽

Random Effects Model ◽

Resonance Imaging ◽

Meta Regression

Our meta-analysis aimed to evaluate the diagnostic performance of surveillance magnetic resonance imaging (sMRI) for detecting hepatocellular carcinoma (HCC), and to compare the diagnostic performance of sMRI between different protocols. Original articles about the diagnostic accuracy of sMRI for detecting HCC were found in major databases. The meta-analytic pooled sensitivity and specificity of sMRI for detecting HCC were determined using a bivariate random effects model. The pooled sensitivity and specificity of full MRI and abbreviated MRI protocols were compared using bivariate meta-regression. In the total seven included studies (1830 patients), the pooled sensitivity of sMRI for any-stage HCC and very early-stage HCC were 85% (95% confidence interval, 79–90%; I2 = 0%) and 77% (66–85%; I2 = 32%), respectively. The pooled specificity for any-stage HCC and very early-stage HCC were 94% (90–97%; I2 = 94%) and 94% (88–97%; I2 = 96%), respectively. The pooled sensitivity and specificity of abbreviated MRI protocols were 87% (80–94%) and 94% (90–98%), values that were comparable with those of full MRI protocols (84% [76–91%] and 94% [89–99%]; p = 0.83). In conclusion, sMRI had good sensitivity for detecting HCC, particularly very early-stage HCC. Abbreviated MRI protocols for HCC surveillance had comparable diagnostic performance to full MRI protocols.

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Comparative Study of Digital Breast Tomosynthesis (DBT) with and without Ultrasound versus Breast Magnetic Resonance Imaging (MRI) in Detecting Breast Lesion

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph19020759 ◽

2022 ◽

Vol 19 (2) ◽

pp. 759

Author(s):

Janice Hui Ling Goh ◽

Toh Leong Tan ◽

Suraya Aziz ◽

Iqbal Hussain Rizuana

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Diagnostic Performance ◽

Breast Lesion ◽

Breast Magnetic Resonance Imaging ◽

Digital Breast Tomosynthesis ◽

Resonance Imaging ◽

Breast Tomosynthesis ◽

Breast Magnetic Resonance ◽

Magnetic Resonance Imaging Mri

Digital breast tomosynthesis (DBT) is a fairly recent breast imaging technique invented to overcome the challenges of overlapping breast tissue. Ultrasonography (USG) was used as a complementary tool to DBT for the purpose of this study. Nonetheless, breast magnetic resonance imaging (MRI) remains the most sensitive tool to detect breast lesion. The purpose of this study was to evaluate diagnostic performance of DBT, with and without USG, versus breast MRI in correlation to histopathological examination (HPE). This was a retrospective study in a university hospital over a duration of 24 months. Findings were acquired from a formal report and were correlated with HPE. The sensitivity of DBT with or without USG was lower than MRI. However, the accuracy, specificity and PPV were raised with the aid of USG to equivalent or better than MRI. These three modalities showed statistically significant in correlation with HPE (p < 0.005, chi-squared). Generally, DBT alone has lower sensitivity as compared to MRI. However, it is reassuring that DBT + USG could significantly improve diagnostic performance to that comparable to MRI. In conclusion, results of this study are vital to centers which do not have MRI, as complementary ultrasound can accentuate diagnostic performance of DBT.

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