Abstract:
OBJECTIVES:To evaluate visualization of the right adrenal vein (RAV) with multidetector CT and non-contrast-enhanced MR imaging in patients with primary aldosteronism. METHODS:A total of 125 patients (67 men) scheduled for adrenal venous sampling (AVS) were included. Dynamic 64-detector-row CT and balanced steady-state free precession-based non-contrast-enhanced 3-T MR imaging were performed. RAV visualization based on a four-point score was documented. Both anatomical location and variation on cross-sectional imaging were evaluated, and the findings were compared with catheter venography as the gold standard. RESULTS:The RAV was visualized in 93.2% by CT and 84.8% by MR imaging (p = 0.02). Positive predictive values of RAV visualization were 100% for CT and 95.2% for MR imaging. Imaging score was significantly higher in CT than MR imaging (p < 0.01). The RAV formed a common trunk with an accessory hepatic vein in 16% of patients. The RAV orifice level on cross-sectional imaging was concordant with catheter venography within the range of 1/3 vertebral height in >70% of subjects. Success rate of AVS was 99.2%. CONCLUSIONS:Dynamic CT is a reliable way to map the RAV prior to AVS. Non-contrast-enhanced MR imaging is an alternative when there is a risk of complication from contrast media or radiation exposure. KEY POINTS:Dynamic CT and non-contrast-enhanced MR imaging detect the right adrenal vein (RAV). Dynamic CT can visualize the RAV more than non-contrast-enhanced MR imaging. Mapping the RAV helps to achieve successful adrenal venous sampling. Sixteen per cent of RAVs share the common trunk with accessory hepatic veins.
journal_name
Eur Radioljournal_title
European radiologyauthors
Ota H,Seiji K,Kawabata M,Satani N,Omata K,Ono Y,Iwakura Y,Morimoto R,Matsuura T,Kudo M,Tominaga J,Satoh F,Ito S,Takase Kdoi
10.1007/s00330-015-3872-3subject
Has Abstractpub_date
2016-03-01 00:00:00pages
622-30issue
3eissn
0938-7994issn
1432-1084pii
10.1007/s00330-015-3872-3journal_volume
26pub_type
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