Spinal ultrasound – Identification of the normal structures (original) (raw)
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Neonatal and infantile spinal sonography: A useful investigation often underutilized
The Indian journal of radiology & imaging
Sonography is an ideal, effective, noninvasive tool for evaluation of the spinal cord in neonatal and early infantile age groups owing to lack of ossification of the posterior elements of spine. Understanding normal anatomical appearances is a prerequisite for the interpretation of various pathologies of the spinal canal and its contents. This review elucidates normal appearances of the spinal cord in this age group, in both axial and sagittal planes. Usefulness of Doppler sonography is briefly discussed, and special emphasis is placed on normal anatomical variants that may mimic spinal abnormalities. Sonographic appearances of common intraspinal pathologies, both congenital and acquired, are exhaustively described. Key points regarding sonographic diagnosis of important spinal anomalies are emphasized and explained in detail. To conclude, spinal ultrasound is a reliable and widely available screening tool, albeit the usefulness of which is often underestimated.
Ultrasonographic determination of neonatal spinal canal depth
Archives of Disease in Childhood - Fetal and Neonatal Edition, 2008
canal depth Ultrasonographic determination of neonatal spinal http://fn.bmj.com/cgi/content/full/93/6/F451 Updated information and services can be found at: These include: References http://fn.bmj.com/cgi/content/full/93/6/F451#BIBL
Caprine neonatal spinal ultrasonography
International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience, 2017
Spinal ultrasonography is a safe, rapid, and non-invasive diagnostic tool that allows visualization of the spinal cord and its surrounding meninges. The non-ossified spinous processes were used as an acoustic window for imaging the spinal cord in human and canine neonates. No available literatures have been published describing the ultrasonographic appearance of caprine neonatal spinal cord. The present study was performed on 20 one day-old goat kids. Sagittal and transverse ultrasound scans were obtained using 8MHz linear transducer. The spinal cord appeared as a tubular anechoic to hypoechoic structure within the spinal canal. The cord was surrounded by hyperechoic dura and pia matter as well as the anechoic subarachnoid space in-between. The mean sagittal diameter of the cord at the cervical region was (4.6±0.3mm), the thoracic region (3.9±0.2mm), and the lumbar region (4.3±1.1mm). The sagittal diameter of the cord at the cervical and lumbar regions was significantly wider than t...
Spine Ultrasound Imaging in the Newborn
Seminars in Ultrasound, CT and MRI, 2014
Ultrasound of the spine in the neonate is widely used as the initial modality to evaluate spinal canal anatomy, anatomical variants, and congenital malformations. The spinal canal and its contents are best visualized in the newborn and young infant owing to incomplete ossification of the posterior vertebral elements.
Atypical and equivocal sonographic features of the spinal cord in neonates
Pediatric radiology, 1995
Thanks to the wider use of sonography to examine the spinal content in the neonate, normal anatomy and anomalies may be detected easily. Yet, unusual sonographic patterns are also observed. These must be differentiated from true pathologies. During a prospective study of 103 neurologically asymptomatic neonates, atypical sonographic patterns were found in 16 patients, corresponding to normal variants in 13. Nine of these 13 patients presented with a widening of the distal part of the central echo complex (one had a dilated ventriculus terminalis). Nerve roots of the cauda equina were disposed asymmetrically in three patients; the spinal cord movements were still present. In two of these babies, this distribution was associated with thin arachnoid pseudocysts. One patient presented with transitorily hyperechoic and narrow subdural spaces, probably related to neonatal dehydration. None of the 13 patients showing normal variants required any treatment. The other 3 patients (of 16) presented with equivocal entities of unknown evolution: sonographic tethered cord, fibrolipoma of the filum terminale and epidural varices. Sonography is highly accurate in evaluating the spinal cord content and aids differentiation of normal and normal variants from equivocal or pathological entities.
Ultrasonic Assessment of the Fetal Spine Before 20 Weeks' Gestation
Radiology, 1979
The ultrasonic appearance of the normal and abnormal fetal spine before 20 weeks' gestation was reviewed in 121 pregnancies. A model was constructed to establish the mechanism of production in the various configurations seen. The relative roles of ultrasonography, alpha fetoprotein assay, and fetoscopy in the diagnosis of spina bifida are discussed.
Journal of Ultrasound in Medicine, 2016
Parameter developed in collaboration with the American College of Radiology, the Society for Pediatric Radiology, and the Society of Radiologists in Ultrasound. The American Institute of Ultrasound in Medicine (AIUM) is a multidisciplinary association dedicated to advancing the safe and effective use of ultrasound in medicine through professional and public education, research, development of parameters, and accreditation. To promote this mission, the AIUM is pleased to publish, in conjunction with the American College of Radiology (ACR), the Society for Pediatric Radiology (SPR), and the Society of Radiologists in Ultrasound (SRU), this AIUM Practice Parameter for the Performance of an Ultrasound Examination of the Neonatal and Infant Spine. We are indebted to the many volunteers who contributed their time, knowledge, and energy to bringing this document to completion.
Sonographic evaluation of spinal cord birth trauma with pathologic correlation
American Journal of Roentgenology, 1988
Birth trauma to the spinal cord is a serious potential complication of delivery. Determining the presence, severity, and extent of injury poses a difficult problem because of the often confusing clinical setting. Myelography has been recommended for assessing spinal cord birth trauma but is invasive and may not be helpful. The role of sonography in evaluating spinal cord birth trauma has not been previously described. We assessed the value of sonography in four patients, three of whom also had CT metrizamide myelography. Autopsy correlation was available in three patients. Sonography was able to easily demonstrate the cord configuration, allowing for multiple assessments over time. Internal cord echogenicity was helpful in a case of hematomyelia and in demonstrating the changes of myelomalacia.
Development of the Fetal Spinal Cord
Journal of Ultrasound in Medicine, 2006
The purpose of this study was to perform high-resolution sonographic examinations to determine the normal anatomic relationship of the conus medullaris (CM) of the spinal cord with the vertebral column during different stages of gestation. Methods. In this prospective study, fetal sonographic evaluations were performed between 13 and 40 weeks' gestation. Transvaginal probes (7.5-8 MHz) or abdominal probes (5-8 MHz) were used, depending on gestational age and position of the fetus. The CM was located in coronal longitudinal sections. The positions of the kidneys and lumbosacral junction and the origin of the ribs determined the location of the vertebrae. The locations of the CM were divided into 5 groups according to their positions relative to the vertebrae. Results. A total of 110 fetuses between 13 and 40 weeks' gestation were studied. Between 13 and 18 weeks' gestation, the CM was situated at the level of the L4 vertebra, or more caudally, in 100% of the fetuses. At term, all fetuses showed the CM above L2. A distinct ascent of the CM was detected between 13 and 40 weeks' gestation. The results were statistically significant (P < .0001). Conclusions. A distinguishable ascent of the CM in relation to the vertebral column during fetal life was detected.