scholarly journals Real-Life Diagnostic Accuracy of MRI in Prenatal Diagnosis

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Manuel Recio Rodríguez ◽  
Cristina Andreu-Vázquez ◽  
Israel J. Thuissard-Vasallo ◽  
Raquel Cano Alonso ◽  
Carmina Bermejo López ◽  
...  

There is some controversy about the value of fetal MRI in prenatal diagnosis, and most of the studies examine its accuracy in central nervous system (CNS) pathology. The objective of this retrospective study was to assess the diagnostic accuracy and usefulness of fetal MRI in the prenatal diagnosis of central nervous system (CNS) pathology and non-CNS pathology. Patients referred to the Radiology Department between 2007 and 2018 for a fetal MRI after detection of an anomaly in the fetal ultrasound, a high-risk pregnancy, or an inconclusive fetal ultrasound (n = 623) were included in the study. Postnatal diagnosis was used to assess the diagnostic accuracy of MRI. Fetal MRI was considered to provide additional information over fetal ultrasound when findings of the fetal MRI were not detected in the fetal ultrasound or when established a pathological condition that was not detected in the fetal ultrasound. Fetal MRI provided useful information for the perinatal management and prognosis over fetal ultrasound when findings of the fetal MRI changed the postnatal prognosis, leaded to the decision to legally terminate the pregnancy, changed prenatal or postnatal follow-up, or helped in the planning of prenatal or postnatal treatment. Fetal MRI offered an accurate diagnosis in 97% of cases (compared to 90.4% of fetal ultrasound; p < 0.001 ). Concordance between fetal ultrasound and fetal MRI was 92.1%. Fetal MRI provided additional information over fetal ultrasound in 23.1% of cases. In 11.6% of cases, the information was useful for the perinatal management and prognosis. In 45 cases (7.2%), fetal MRI was the only accurate diagnosis. In conclusion, fetal MRI has a superior diagnostic accuracy, especially in CNS pathology, and provides additional useful information in CNS, thoracic, and abdominal pathology.

2021 ◽  
Vol 31 (Supplement_2) ◽  
Author(s):  
Inês Pimentel ◽  
João Costa ◽  
Óscar Tavares

Abstract Background Malformations of the central nervous system (CNS) constitute the 2nd most common group of fetal pathologies, which can be reflected throughout the patient's life. Fetal ultrasound (US), together with fetal magnetic resonance imaging (MRI) are extremely important techniques for the diagnosis of CNS malformations. The objective of this work was to address fetal US and fetal MRI, as well as the benefits of its use in different CNS pathologies and to ascertain which of the techniques presents better results. Methods For this systematic literature review, a search was conducted using databases such as PubMed® and ScienceDirect®, Google Scholar, b-on digital library, in a 10-year period, 2010 to 2020. 60 references were used, which met the inclusion criteria, namely compliance with the defined timeframe and the theme of the work to be addressed. Results As for the results, fetal US is the first-line technique for fetal evaluation, and its objective is to detect possible fetal malformations early, while fetal MRI complements the information collected through fetal US. When there are cases of isolated ventriculomegaly and complete agenesis of the corpus callosum, fetal US can correctly assess the pathology. When it comes to pathologies such as dysgenesis of the corpus callosum and malformations of the posterior fossa, fetal MRI evaluates more effectively in comparison to fetal US. Conclusions In conclusions, to reduce the number of false positives, the techniques should be used together, thus providing a better diagnosis.


Author(s):  
A.Yu. Blinov

A review of literature data on the study of human embryos using new methods of medical imaging is given. The possibility of prenatal diagnosis of severe central nervous system defects has been demonstrated already in the embryonic period at 8–10 weeks of gestation or at the age of 16 to 23 stages of the embryonic development period


2017 ◽  
Vol 20 (1) ◽  
pp. 3-9
Author(s):  
Ram Kumar Shrestha ◽  
Bibek KC ◽  
Gopal Sedain ◽  
Gita Sayami ◽  
Sushil Shilpakar ◽  
...  

Introduction: CNS tumor requires intraoperative decision making regarding the extent of tumor removal. Clinical examination and imaging studies are not sufficient enough to predict the biological behavior of the tumors. Squash cytology is a quick method of evaluation of cytomorphologic features prepared from smear technique and provide the preliminary diagnosis and aid in intraoperative decision making by differentiating neoplastic from non neoplastic and benign from malignant lesions. The aim of this study is compare the diagnostic accuracy of squash cytology to that of histopathological examination. Methods: This study consists of 36 specimens from both brain and spine subjected to both squash cytology and histopathological evaluation. The squash preparation and histopathological finding were later compared and diagnostic accuracy calculated. Results: Gliomas are the most common tumor encountered and the accuracy of Squash cytology obtained was 71%. In meningioma, 100% diagnostic accuracy was obtained however, there was limitation in accurately predict the subgroup of tumor by squash cytology alone. Other neoplastic lesions included in this study were Schwannoma, Oligodendroglioma, Ependymoma, mixed tumors and others. Overall, the accuracy predicted by squash cytology is found to be 77.8 % in this study. Conclusion: Squash cytology is rapid and reliable method of tissue diagnosis that aid in intraoperative decision making regarding the extent of Central Nervous System tumor excision


2018 ◽  
Vol 46 (6) ◽  
pp. 631-639
Author(s):  
Raul Moreira Neto ◽  
Selma Porovic

AbstractFetal neurology is evolving as an area of great interest in prenatal diagnosis and fetal medicine. The identification and diagnosis of brain damage prenatally has been a great challenge in obstetrics for many years. Investigations of fetal behavior in comparison with morphological studies led to the conclusion that fetal behavioral patterns directly reflect developmental and maturational processes of the fetal central nervous system (CNS). Four-dimensional (4D) ultrasound has greatly improved the assessment of the quality of the fetal spontaneous movements, and enabled a better evaluation of fetal behavior. The assessment of normal neurobehavioral development by 4D ultrasound provided the opportunity to investigate functional characteristics of the fetus that could predict neurological developmental dysfunction. Some studies have already been carried out to evaluate this new methodology in the observation of fetal behavior during different stages of gestation, in an attempt to better understand the relationships between the maturation of the CNS of the fetus and its implications on its behavior pattern. We present a review of literature on fetal behavior by 4D ultrasound.


2011 ◽  
Vol 30 (7) ◽  
pp. 1003-1008 ◽  
Author(s):  
Giuseppe Rizzo ◽  
Alfred Z. Abuhamad ◽  
Beryl R. Benacerraf ◽  
Rabih Chaoui ◽  
Edgardo Corral ◽  
...  

2017 ◽  
Vol 93 ◽  
pp. 273-283 ◽  
Author(s):  
Lucia Manganaro ◽  
Silvia Bernardo ◽  
Amanda Antonelli ◽  
Valeria Vinci ◽  
Matteo Saldari ◽  
...  

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