OBJECTIVE: The purpose of this study was to evaluate cisterna magna size of the fetuses between 16 and 24 weeks of gestation, and to establish a normogram for cisterna magna measurements during gestation. METHODS: A prospective study of normal singleton pregnancies was established. Measurement of the fetal cisterna magna was performed by transabdominal ultrasonography between 16 and 24 weeks of gestation in 194 fetuses. RESULTS: A linear correlation was obtained between gestational age (GA) and cisterna magna (R(2)=0.75, P<0.0001). A linear correlation was also found between biparietal diameter and cisterna magna (R(2)=0.74, P<0.0001). The normal mean (+/-SD) for each gestational week was defined. CONCLUSION: The present data offer the normal range of the cisterna magna. Cisterna magna measurement may provide normative data for fetal growth and development. Abnormal measurement of cisterna magna may be a clue for posterior fossa pathologies or a chromosomal disorder.
OBJECTIVE: The purpose of this study was to evaluate cisterna magna size of the fetuses between 16 and 24 weeks of gestation, and to establish a normogram for cisterna magna measurements during gestation. METHODS: A prospective study of normal singleton pregnancies was established. Measurement of the fetal cisterna magna was performed by transabdominal ultrasonography between 16 and 24 weeks of gestation in 194 fetuses. RESULTS: A linear correlation was obtained between gestational age (GA) and cisterna magna (R(2)=0.75, P<0.0001). A linear correlation was also found between biparietal diameter and cisterna magna (R(2)=0.74, P<0.0001). The normal mean (+/-SD) for each gestational week was defined. CONCLUSION: The present data offer the normal range of the cisterna magna. Cisterna magna measurement may provide normative data for fetal growth and development. Abnormal measurement of cisterna magna may be a clue for posterior fossa pathologies or a chromosomal disorder.
Authors: Luciano Marcondes Machado Nardozza; Ana Paula Passos; Edward Araujo Júnior; Rafael Frederico Bruns; Antonio Fernandes Moron Journal: Radiol Bras Date: 2014 Jul-Aug
Authors: Fernanda Silveira Bello de Barros; Luiz Cláudio de Silva Bussamra; Edward Araujo Júnior; Leonardo da Silva Valladão de Freitas; Luciano Marcondes Machado Nardozza; Antonio Fernandes Moron; José Mendes Aldrighi Journal: ISRN Obstet Gynecol Date: 2012-11-14