Diagnostic ultrasound ( PDFDrive )

CHAPTER 46 Duplex Sonography of the Neonatal and Infant Brain 1589
FIG. 46.21 Pitfall: Arterial and Venous Overlay on Spectral Flow
Curve. Simultaneous sampling of the arterial low within the pericallosal
artery and adjacent inferior sagittal sinus may mimic a reversal of the
diastolic low with incorrect calculation of the resistive index values.
slow-low vessels, deep-seated vessels, and supericial vessels
obscured by the calvarial bone or outside the acoustic window
may be overlooked. A dedicated familiarity with the studied
pathologies is a sine qua non for sensitive and speciic duplex
sonography.
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