Abstract
In the last decade, cranial ultrasound scanning (US) has become a routine examination in neonatal intensive care units (NICUs). This technique allows a noninvasive quick visualization of newborns’ brains, even in very low birth weight infants admitted to intensive care. The examination is conducted directly at the cot or in the incubator by means of a transportable real-time US-apparatus, thus making it unnecessary to move the baby. A 5 MHz (or 7.5 MHz) transducer is applied over the anterior fontanel which remains open during the first several months of life. Coronal and sagittal scans are usually performed, allowing a good visualization of supratentorial and subtentorial structures. Only the regions located immediately below cranial bones are not well seen. The most hypoechoic structures (i.e. cerebro-spinal fluid) appear black and the most hyperechoic ones (i.e. bones) appear white, whereas tissues with intermediate echogenicity are represented by different shades of grey.
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© 1994 Plenum Press, New York
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Cioni, G., Bartalena, L., Biagioni, E., Boldrini, A. (1994). Callosal Agenesis: Postnatal Sonographic Findings. In: Lassonde, M., Jeeves, M.A. (eds) Callosal Agenesis. Advances in Behavioral Biology, vol 42. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0487-6_9
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DOI: https://doi.org/10.1007/978-1-4613-0487-6_9
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