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Diagnostic ultrasound ( PDFDrive )

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1676 PART V Pediatric Sonography

A

D

B

E

C

F

FIG. 49.5 Normal Spinal Cord. (A) Sagittal view shows posterior aspect (arrows) and anterior aspect of the thoracic spinal cord (arrowheads).

Normal thoracic spinal cord is more anteriorly positioned within the vertebral canal than the more distal spinal cord. (B) Normal widening of the

lumbar spinal cord (arrowheads). The central echo complex is visible as an echogenic line (arrow). (C) Tip of the conus medullaris (C) should taper

gradually. Individual nerve rootlets are visible (arrow). (D) On transverse view of the lumbar spinal cord, dorsal (d) and ventral (v) nerve rootlets, as

well as the anterior median issure, are visible (arrow). (E) Transverse view near the tip of the conus medullaris demonstrates the hypoechoic

substance of the cord (arrow) in the center of the more echogenic nerve rootlets. (F) The beginning of the ilum terminale is seen as a central,

slightly echogenic focus (arrow) in the transverse plane.

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