Azygos blood flow in cirrhosis: Measurement with MR imaging and correlation with variceal hemorrhage

Ming Ting Wu, Huay Ben Pan, Clement Chen, Jinn Ming Chang, Gin Ho Lo, Su Shin Wu, Hong N. Yeung, Chien Fang Yang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


PURPOSE: To evaluate magnetic resonance (MR) measurement of azygos blood flow (ABF) in assessment of risk of variceal hemorrhage in cirrhosis. MATERIALS AND METHODS: ABF in 50 patients with cirrhosis and 20 healthy control subjects was evaluated with phase-contrast cine MR imaging at the transaxial subcarinal plane. Group 1 included nine patients with cervical- drainage varices draining into brachiocephalic vein; group 2 included 41 patients with varices draining into azygos vein and was subdivided as group 2A, 15 patients with variceal hemorrhage, and group 2B, 26 without variceal hemorrhage. RESULTS: Azygos flow rate and velocity were increased in patients compared with that in control subjects. ABF in group 2A was faster than that in group 2B (cutoff, 15 cm/sec; sensitivity, 80%; specificity, 89%). Group 1 had ABF close to that of group 2B, but variceal hemorrhage occurred in seven of nine patients in group 1 versus 15 of 41 patients in group 2 (78% vs 37%; P = .029). CONCLUSION: Patients with cirrhosis with cervical-drainage varices or ABF greater than 15 cm/sec may have higher risk for variceal hemorrhage.

Original languageEnglish
Pages (from-to)457-462
Number of pages6
Issue number2
StatePublished - Feb 1996


  • Hypertension, portal
  • Liver, cirrhosis
  • Magnetic resonance (MR), vascular studies
  • Veins, azygos


Dive into the research topics of 'Azygos blood flow in cirrhosis: Measurement with MR imaging and correlation with variceal hemorrhage'. Together they form a unique fingerprint.

Cite this