Clinical Relevance of Retrograde Inferior Vena Cava or Hepatic Vein Opacification During Contrast-Enhanced CT
Benjamin M. Yeh1,
Philip Kurzman1,2,
Elyse Foster3,
Aliya Qayyum1,
Bonnie Joe1 and
Fergus Coakley1
1 Department of Radiology, University of California-San Francisco, 521 Parnassus
Ave., Rm. C-324C, Box 0628, San Francisco, CA 94143-0628.
2 Present address: Department of Radiology, University of Chicago Hospitals,
Chicago, IL.
3 Department of Medicine, University of California-San Francisco, San Francisco,
CA.

View larger version (120K):
[in a new window]
|
Fig. 1A. 35-year-old woman with shortness of breath. Echocardiography
showed no evidence of right-sided heart disease. CT scan of chest obtained
with high rate of IV contrast injection to evaluate for possible pulmonary
embolus shows retrograde opacification of inferior vena cava and hepatic veins
(arrows).
|
|

View larger version (144K):
[in a new window]
|
Fig. 1B. 35-year-old woman with shortness of breath. Echocardiography
showed no evidence of right-sided heart disease. CT scan of chest obtained at
more caudal level shows little opacification of right and middle hepatic veins
branches (arrowheads).
|
|

View larger version (18K):
[in a new window]
|
Fig. 2. Boxplots of vein diameters on CT in patients with and without
right-sided heart disease at echocardiography. Horizontal line through each
box represents median diameter. Top and bottom of each box represent
interquartile ranges (75% and 25%). Whiskers mark 95% range; circles indicate
outliers. Mean diameter of each vessel in this graph, except for that of
suprahepatic inferior vena cava in CT examinations with low injection rate,
was significantly larger when right-sided heart disease was found (dotted
lines) at echocardiography than when it was not (solid lines)
(p < 0.05 for each). However, extensive overlap is seen between
vessel diameters in patients with and without right-sided heart disease. IVC =
inferior vena cava.
|
|

CiteULike
Complore
Connotea
Del.icio.us
Digg
Reddit
Technorati What's this?
Copyright © 2004 by the American Roentgen Ray Society.