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Moradi B, Taherian R, Tahmasebpour AR, Sanei Taheri M, Kazemi MA, Pak N, Shirazi M, Radmanesh A, Oztekin O, Arab-Ahmadi M. Fetal corpus callosum abnormalities: Ultrasound and magnetic resonance imaging role. JOURNAL OF CLINICAL ULTRASOUND : JCU 2022; 50:989-1003. [PMID: 35488776 DOI: 10.1002/jcu.23212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 03/19/2022] [Accepted: 03/24/2022] [Indexed: 06/14/2023]
Abstract
The corpus callosum (CC) is the major interhemispheric commissure and its abnormalities include agenesis, hypoplasia, and hyperplasia. The CC anomalies are typically related to other central nervous system (CNS) or extra-CNS malformations. The antenatal diagnosis of complete CC agenesis is easy after mid-trimester by ultrasound (US) even in the axial plane. The non-visualization of cavum septum pellucidum and colpocephaly are critical signs in the axial view. More subtle findings (i.e., hypoplasia and partial agenesis) might also be recognized antenatally. In this review, the focus was given on the prenatal diagnosis of CC abnormalities in US and magnetic resonance imaging.
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Affiliation(s)
- Behnaz Moradi
- Department of Radiology, Yas Complex Hospital, Tehran University of Medical Sciences, Tehran, Iran
- Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Taherian
- Department of Radiology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | | | - Morteza Sanei Taheri
- Department of Radiology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Kazemi
- Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Sciences, Tehran, Iran
- Department of Radiology, Amir Alam Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Neda Pak
- Department of Radiology, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahboobeh Shirazi
- Maternal Fetal and Neonatal Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Radmanesh
- Department of Radiology, School of Medicine, New York University, New York, New York, USA
| | - Ozgur Oztekin
- Radiology Department, Izmir Education and Research Hospital, Izmir, Turkey
| | - Mehran Arab-Ahmadi
- Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Sciences, Tehran, Iran
- Department of Radiology, Tehran University of Medical Sciences, Tehran, Iran
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Vasciaveo L, Rizzo G, Khalil A, Alameddine S, Di Girolamo R, Candia M, De Lucia G, Mappa I, Liberati M, Nappi L, D'Antonio F. Assessment of pericallosal artery at 11-14 weeks of gestation: Cohort study and meta-analysis. JOURNAL OF CLINICAL ULTRASOUND 2022; 50:984-988. [PMID: 35315936 DOI: 10.1002/jcu.23191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 02/24/2022] [Accepted: 03/02/2022] [Indexed: 02/05/2023]
Abstract
OBJECTIVES To report the rate of visualization of the pericallosal artery (PCA) in the first trimester of pregnancy (11-14 weeks). METHODS Prospective observational study of consecutive fetuses undergoing first trimester risk assessment for chromosomal anomalies. The presence of PCA was assessed in a midsagittal view of fetal brain using high-definition power Color Doppler. A normal course of the PCA was defined as the visualization of an artery emerging from the anterior cerebral artery running parallel the corpus callosum (CC). The reference standard was the visualization of CC and PCA between the 20 and 22 weeks of gestation. We also performed a systematic review and meta-analysis of the published literature. Multivariate logistic regression and random-effect meta-analyses of proportion were used to analyze the data. RESULTS Cohort study: Five-hundred women were included. PCA was identified trans-abdominally or transvaginally at 11-14 weeks of gestation in 98.8% (95% CI 97.4-99.6: 494/500); of the four cases of PCA not identified one had a diagnosis of complete agenesis of the corpus callosum during the anomaly scan which was confirmed at birth. Systematic review of the published literature: Six studies (1093 fetuses, including the present series) were included. The PCA was detected at the 11-14 weeks scan and confirmed to co-exist with a normal CC at time of the anomaly scan in 96.9% (95% CI 93.8-99.0); 20.6% (95% CI 5.7-41.7) of fetuses with no clear identification of the PCA at the 11-14 weeks scan had a normal appearance of the CC at the time of anomaly scan. CONCLUSION Prenatal ultrasonography has a high diagnostic accuracy in detecting PCA in the first trimester. Visualization of the PCA at the time of 11-14 scan is highly specific for the presence of a normal CC later in pregnancy.
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Affiliation(s)
- Lorenzo Vasciaveo
- Fetal Medicine Unit, Department of Obstetrics and Gynaecology, University of Foggia, Foggia, Italy
| | - Giuseppe Rizzo
- Department of Obstetrics and Gynaecology, Fondazione Policlinico Tor Vergata Università Roma Tor Vergata Roma, Rome, Italy
- Fetal Medicine Unit, Saint George's Hospital, London, UK
| | - Asma Khalil
- Fetal Medicine Unit, Saint George's Hospital, London, UK
| | - Sara Alameddine
- Centre for High-Risk Pregnancy and Fetal Care, Department of Obstetrics and Gynaecology, University of Chieti, Chieti, Italy
| | - Raffaella Di Girolamo
- Centre for High-Risk Pregnancy and Fetal Care, Department of Obstetrics and Gynaecology, University of Chieti, Chieti, Italy
| | - Mariangela Candia
- Fetal Medicine Unit, Department of Obstetrics and Gynaecology, University of Foggia, Foggia, Italy
| | - Graziana De Lucia
- Fetal Medicine Unit, Department of Obstetrics and Gynaecology, University of Foggia, Foggia, Italy
| | - Ilenia Mappa
- Department of Obstetrics and Gynaecology, Fondazione Policlinico Tor Vergata Università Roma Tor Vergata Roma, Rome, Italy
| | - Marco Liberati
- Centre for High-Risk Pregnancy and Fetal Care, Department of Obstetrics and Gynaecology, University of Chieti, Chieti, Italy
| | - Luigi Nappi
- Fetal Medicine Unit, Department of Obstetrics and Gynaecology, University of Foggia, Foggia, Italy
| | - Francesco D'Antonio
- Centre for High-Risk Pregnancy and Fetal Care, Department of Obstetrics and Gynaecology, University of Chieti, Chieti, Italy
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