title: Dynamic multidetector CT and non-contrast-enhanced MR for right adrenal vein imaging: comparison with catheter venography in adrenal venous sampling.
abstract: OBJECTIVE
  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.
  
  
  CONCLUSIONS
  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.
authors.affiliation: Department of Diagnostic Radiology, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan. h-ota@rad.med.tohoku.ac.jp.
authors.forename: Hideki
authors.identifier: http://orcid.org/0000-0002-7239-3152
authors.initials: H
authors.lastname: Ota
authors.affiliation: Department of Diagnostic Radiology, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
authors.forename: Kazumasa
authors.initials: K
authors.lastname: Seiji
authors.affiliation: Department of Diagnostic Radiology, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kawabata
authors.affiliation: Department of Diagnostic Radiology, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
authors.forename: Nozomi
authors.initials: N
authors.lastname: Satani
authors.affiliation: Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
authors.forename: Kei
authors.initials: K
authors.lastname: Omata
authors.affiliation: Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
authors.forename: Yoshikiyo
authors.initials: Y
authors.lastname: Ono
authors.affiliation: Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
authors.forename: Yoshitsugu
authors.initials: Y
authors.lastname: Iwakura
authors.affiliation: Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
authors.forename: Ryo
authors.initials: R
authors.lastname: Morimoto
authors.affiliation: Department of Diagnostic Radiology, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
authors.forename: Tomonori
authors.initials: T
authors.lastname: Matsuura
authors.affiliation: Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
authors.forename: Masataka
authors.initials: M
authors.lastname: Kudo
authors.affiliation: Department of Diagnostic Radiology, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
authors.forename: Junya
authors.initials: J
authors.lastname: Tominaga
authors.affiliation: Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
authors.forename: Fumitoshi
authors.initials: F
authors.lastname: Satoh
authors.affiliation: Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
authors.forename: Sadayoshi
authors.initials: S
authors.lastname: Ito
authors.affiliation: Department of Diagnostic Radiology, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
authors.forename: Kei
authors.initials: K
authors.lastname: Takase
mesh_terms: D000311:Adrenal Glands / Q000098:blood supply* / Q000000981:diagnostic imaging; D000328:Adult; D000368:Aged; D063405:Anatomic Variation; D019412:Anatomy, Cross-Sectional / Q000379:methods; D002406:Catheterization, Peripheral / Q000379:methods; D003287:Contrast Media; D005260:Female; D006503:Hepatic Veins / Q000000981:diagnostic imaging; D006801:Humans; D006929:Hyperaldosteronism / Q000000981:diagnostic imaging*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods; D018810:Magnetic Resonance Angiography / Q000379:methods* / Q000706:statistics & numerical data; D008297:Male; D008875:Middle Aged; D061330:Multidetector Computed Tomography / Q000379:methods* / Q000706:statistics & numerical data; D064847:Multimodal Imaging / Q000379:methods* / Q000706:statistics & numerical data; D010690:Phlebography / Q000295:instrumentation / Q000379:methods*; D011237:Predictive Value of Tests; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging
chemical_list: D003287:Contrast Media
keywords: Angiography, digital subtraction; Hyperaldosteronism; Magnetic resonance imaging; Multidetector computed tomography; Phlebography