Diagnostic ultrasound ( PDFDrive )

CHAPTER 27 Peripheral Vessels 1005
FIG. 27.62 Large Hematoma Adjacent to Arteriovenous Fistula
(AVF). Gray-scale image shows hematoma (calipers). No low was seen
on color or spectral Doppler (not shown). See also Video 27.26 for
adjacent patent AVF.
A
B
FIG. 27.63 Helical Flow in the Aneurysmal Dilation of Arteriovenous Fistula (AVF). (A) Aneurysmal dilation of the AVF draining vein in the
area of palpable swelling. No pseudoaneurysm seen. (B) “Yin-yang” low pattern on color Doppler due to swirling blood.
A
B
FIG. 27.64 Small Basilic Vein Pseudoaneurysm. (A) Basilic vein arteriovenous istula (*) with pseudoaneurysm (arrows). (B) Spectral Doppler
in the pseudoaneurysm neck shows typical “to-and-fro” pattern. See also Video 27.27.