Magnetic Resonance Imaging
Volume 28, Issue 9 , Pages 1306-1310 , November 2010

Identification of efferent flow in the superior vena cava and azygos vein confluence using cine phase-contrast MRI: speculation of the role of the azygos arch valves

Received 25 November 2009 ,Revised 23 January 2010 ,Accepted 10 June 2010.

References 

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  3. Yeh BM, Coakley FV, Sanchez HC, Wilson MW, Reddy GP, Gotway MB. Azygos arch valves: prevalence and appearance at contrast-enhanced CT. Radiology. 2004;230:111–115
  4. Ichikawa T, Endo J, Koizumi J, Ro A, Kobayashi M, Saito M, et al. Visualization of the azygos arch valves on multidetector-row computed tomography. Heart Vessels. 2008;23:118–123
  5. Restrepo CS, Lemos DF, Lemos JA, Velasquez E, Diethelm L, Ovella TA, et al. Imaging findings in cardiac tamponade with emphasis on CT. Radiographics. 2007;27:1595–1610
  6. Steinke K, Moghaddam A. Azygos arch valves at computed tomography angiography and pitfalls related to its variety in appearance and function. J Comput Assist Tomogr. 2009;33:721–724
  7. Wu MT, Pan HB, Chen C, Chang JM, Lo GH, Wu SS, et al. Azygos blood flow in cirrhosis: measurement with MR imaging and correlation with variceal hemorrhage. Radiology. 1996;198:457–462
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  9. Ng WH, Chan YL, Sung JY, Lee YT, Lee SF, Chung SS. Comparison of breath-hold 2D phase-contrast with non breath-hold cine phase-contrast MRA in the assessment of azygos venous blood flow in portal hypertension. MAGMA. 2004;16:211–217
  10. Sugano S, Yamamoto K, Takamura N, Momiyama K, Watanabe M, Ishii K. Azygos venous blood flow while fasting, postprandially, and after endoscopic variceal ligation, measured by magnetic resonance imaging. J Gastroenterol. 1999;34:310–314
  11. Debatin JF, Zahner B, Meyenberger C, Romanowski B, Schöpke W, Marincek B, et al. Azygos blood flow: phase contrast quantitation in volunteers and patients with portal hypertension pre- and postintrahepatic shunt placement. Hepatology. 1996;24:1109–1115

PII: S0730-725X(10)00162-1

doi: 10.1016/j.mri.2010.06.005

Magnetic Resonance Imaging
Volume 28, Issue 9 , Pages 1306-1310 , November 2010