Publications by authors named "Joann Acuna"
First trimester supratentorial and infratentorial abnormalities in fetuses with open spina bifida.
J Matern Fetal Neonatal Med
July 2021
Objectives: To examine whether supratentorial, infratentorial, and calvarial manifestations of open spina bifida (OSB) occur in the first-trimester.
Methods: Supratentorial (midbrain curvature, thalamic height), infratentorial (fourth ventricle diameter, brain-stem diameter [BSD], ratio of BSD to BSD-occipital bone diameter [BSOB]), and calvarial (frontomaxillary facial [FMF] angle) parameters were measured in stored midsagittal facial images at 110-136 weeks of 500 normal and 10 open spina-bifida fetuses by 3 blinded examiners.
Results: OSB fetuses displayed a larger midbrain curvature (93.
Article Synopsis
- The study aimed to evaluate the effectiveness of not visualizing the fourth ventricle during early ultrasounds to detect spina bifida in the first trimester.
- Researchers analyzed 250 ultrasound examinations, comparing 245 normal cases and 5 with spina bifida, with 4 reviewers assessing the presence of the fourth ventricle and its measurements.
- The results showed that the fourth ventricle was identified in 97.1% of cases, but the detection method had low sensitivity (0.45) despite high specificity (0.98), indicating it's a less reliable screening tool for spina bifida than previously thought.
Objective: Three-dimensional ultrasound has become an integral mode of fetal imaging. However, unclear but foundational concepts such as 'rotational axes' and 'sectional planes' are key to obtaining, manipulating, and understanding 3d volumes. This randomized study utilized 'analogical transfer', as a novel method of teaching three-dimensional ultrasound.
View Article and Find Full Text PDFObjective: To report the demographic characteristics and clinical morbidity of methamphetamine-exposed pregnancies compared with control patients in a tertiary care, urban, academic medical center.
Methods: A single-site chart review from 2000 to 2006 was conducted. International Classification of Diseases, 9th Revision code 648.