Fluoroscopically triggered contrast-enhanced three-dimensional MR angiography with elliptical centric view order: application to the renal arteries

Radiology. 1997 Oct;205(1):137-46. doi: 10.1148/radiology.205.1.9314975.


Purpose: To determine the reliability of obtaining arterial-phase, contrast-material-enhanced three-dimensional (3D) magnetic resonance (MR) angiograms of the renal arteries by using a technique that combines two-dimensional real-time MR fluoroscopy and a 3D MR angiographic acquisition with elliptical centric view order.

Materials and methods: Twenty-five consecutive patients suspected of having renal artery disease were evaluated with the fluoroscopically triggered technique by using a mean dose of 0.18 mmol/kg gadoteridol. Left renal vein suppression, inferior vena cava suppression, motion artifact, and image quality for depiction of the renal arteries were each evaluated on a five-point scale (1 = best). The findings were compared with those of another 25 consecutive patients who underwent conventional gadolinium-enhanced 3D MR angiography.

Results: The fluoroscopically triggered technique produced 4.6 times less left renal vein enhancement than did the conventional method (P < .01). With the fluoroscopically triggered technique, visualization of the renal arteries was adequate for diagnosis in 24 patients (96%) and the overall result (score of 1-3 for all criteria) was of good quality in 22 patients (88%).

Conclusion: With this fluoroscopically triggered MR angiographic technique, high-quality, arterial phase, relatively motion immune angiograms can be routinely obtained.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aorta, Abdominal / pathology
  • Contrast Media / administration & dosage*
  • Female
  • Fluoroscopy*
  • Gadolinium / administration & dosage
  • Heterocyclic Compounds* / administration & dosage
  • Humans
  • Image Processing, Computer-Assisted
  • Magnetic Resonance Angiography / methods*
  • Male
  • Middle Aged
  • Organometallic Compounds* / administration & dosage
  • Renal Artery / pathology*
  • Renal Artery Obstruction / diagnosis
  • Renal Veins / pathology
  • Vena Cava, Inferior / pathology


  • Contrast Media
  • Heterocyclic Compounds
  • Organometallic Compounds
  • gadoteridol
  • Gadolinium