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    Could magnetic resonance imaging contribute to detecting isolated fetal ventriculomegaly other than additional abnormalities?
    (Soc Peruana Obstetricia & Ginecologia, 2023) Omeroglu, Ibrahim; Golbasi, Hakan; Sever, Baris; Golbasi, Ceren; Oztekin, Deniz; Oztekin, Ozgur; Ekin, Atalay
    Objective: To assess the role of brain magnetic resonance imaging (MRI) in fetuses presenting with isolated ventriculomegaly (IVM) in the ultrasound (US) evaluation of the fetal brain. Methods: US and MRI findings of 197 fetuses diagnosed with IVM between November 2018 and November 2020 were retrospectively evaluated. Fetuses with abnormal karyotypes, additional anomalies, or known etiologies for ventriculomegaly were excluded. US and MRI findings were compared both in terms of mean ventricular measurements and IVM grade. Results: MRI measurements were significantly higher in mild IMV (10.33 +/- 0.38 mm vs. 11.11 +/- 0.51 mm, p< 0.001) compared to US. In mild IVM, MRI measured ventricles larger than US with a mean difference of 0.78 mm. There was no significant difference in US and MRI measurements in terms of mean values in moderate and severe IVM. There was good agreement between US and MRI in detecting right, left and mean IVM severity (Kappa=0.265, Kappa=0.324, and Kappa=0.261, respectively). Linear regression analyses revealed a statistically significant relationship between US and MRI measurements of the right, left, and mean IVM (p<0.001, p<0.001, and p<0.001, respectively). MRI showed perfect agreement with US in detecting IVM laterality (Kappa=1.0, p<0.001). Conclusions: In fetuses with mild IVM detected by US, fetal brain MRI evaluation should be considered for accurate diagnosis. This approach may provide effective strategies in the antenatal management and counseling of these pregnancies.
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    International Consensus Statement on the Radiological Evaluation of Dysraphic Malformations of the Spine and Spinal Cord
    (Amer Soc Neuroradiology, 2024) Balani, Ankit; Sidpra, Jai; Sudhakar, Sniya; Biswas, Asthik; Oztekin, Ozgur; Capra, Valeria; Catala, Martin
    Dysraphic malformations of the spine and spinal cord (DMSSC) represent a spectrum of common congenital anomalies typically (though not exclusively) affecting the lower spinal segments. These may be responsible for varying degrees of neurologic, orthopedic, and urologic morbidity. With advances in neuroimaging, it is now possible to better diagnose and evaluate these disorders both prenatally and postnatally. Neuroimaging, performed at the right time and with technique optimization, is integral in guiding clinical management. However, the terminology used to describe these lesions has become increasingly confusing, and there is a lack of consensus regarding the essential radiologic features and their clinical weighting. This variability in radiologic practice risks unstructured decision making and increases the likelihood of suboptimal, less informed clinical management. In this manuscript, the first of a series of consensus statements, we outline a standardized international consensus statement for the radiologic evaluation of children with suspected DMSSC derived from a critical review of the literature, and the collective clinical experience of a multinational group of experts. We provide recommendations for plain radiography, sonography, CT, and MR imaging in the evaluation of DMSSC with an emphasis on technique of imaging and imaging protocols.
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    The role of fetal MRI-based texture analysis in differentiating congenital pulmonary airway malformation and pulmonary sequestration
    (Galenos Yayincilik, 2022) Sarioilu, Orkun; Sarioilu, Fatma Ceren; Atakul, Bahar Konuralp; Öztekin, Deniz; Oztekin, Ozgur
    Aim: The purpose of our study was to evaluate the diagnostic performance of fetal magnetic resonance imaging (MRI)-based texture analysis (TA) to differentiate the two most common lung malformations, congenital pulmonary airway malformation (CPAM) and pulmonary sequestration (PS). Materials and Methods: This retrospective single-center study included 24 patients with CPAM and 8 patients with PS who had a fetal MRI examination between January 2015 and December 2020. T2-weighted coronal images were used for TA. One reader designated the malformation borders and drew a region-of-interest for TA. The differences in values of the texture features between the groups were assessed and receiver operating characteristic curves were calculated for each statistically significant feature. P-value<0.05 was considered statistically significant. Results: Forty-eight texture features were calculated for each malformation. Twenty features on T2-weighted images were significantly different between the CPAMSs and PSs. Among these, short-run high gray-level emphasis and long-run emphasis, which are gray-level run length matrix features parameters, had the largest area under the curves: 0.956 (sensitivity 87%, specificity 95%) and 0.943 (sensitivity 87%, specificity 85%), respectively. Conclusion: Our results suggest that fetal MRI-based TA may be used to distinguish CPAMs from PSs in fetuses with uncertain pulmonary findings prior to birth.