title: Unenhanced respiratory-navigated NATIVE®TrueFISP magnetic resonance angiography in the evaluation of renal arteries: Comparison with contrast-enhanced magnetic resonance angiography.
abstract: OBJECTIVE
  To compare unenhanced three-dimensional (3D) NATIVE®true fast imaging with steady-state precession (TrueFISP) magnetic resonance (MR) angiography with the more conventional MR angiography technique obtained after intravenous administration of a gadolinium chelate in the evaluation of renal arteries and their branches in patients with suspected renal artery stenosis.
  
  
  METHODS
  A total of 39 patients (25 men, 14 women) with a mean age of 51.4±17.5years (SD) (range: 10-82years) were included in the study. All patients with suspected renal artery stenosis underwent unenhanced 3D NATIVE®TrueFISP MR angiography and contrast-enhanced MR angiography. The two MR angiography methods were compared by two independent readers for image quality using a four-point scale, diagnostic performance and grading of renal artery stenosis on a total of 78 renal arteries.
  
  
  RESULTS
  For both readers image quality of unenhanced 3D NATIVE®TrueFISP MR angiography (3.12 to 3.63) was greater than that of contrast-enhanced MR angiography (1.94 to 2.71) for renal artery ostium-trunk and the left renal artery segmental branches. The sensitivity of 3D NATIVE®TrueFISP MR angiography for the diagnosis of renal artery stenosis was 100% for both readers for the right renal artery and 66% and 80% for the left renal artery for reader 1 and reader 2, respectively. Agreement between 3D NATIVE®TrueFISP MR angiography and CE-MR angiography was 95% (74/78) for reader 1 and 92% (72/78) for reader 2.
  
  
  CONCLUSIONS
  Unenhanced NATIVE®TrueFISP magnetic resonance angiography can play an additional role in the evaluation of renal arteries in patients with hypertension, especially in subjects at risk of nephrogenic systemic fibrosis.
authors: Department of radiology, school of medicine, Süleyman Demirel university, 32260 Isparta, Turkey. Electronic address: bumin.degirmenci@gmail.com.
authors: B
authors: B
authors: Değirmenci
authors: Department of radiology, school of medicine, Süleyman Demirel university, 32260 Isparta, Turkey.
authors: M
authors: M
authors: Kara
authors: Department of nephrology, Dumlupınar university, Kütahya Evliya Celebi training and research hospital, Kütahya, Turkey.
authors: V
authors: V
authors: Kıdır
authors: Department of nephrology, school of medicine, Süleyman Demirel university, Isparta, Turkey.
authors: S
authors: S
authors: İnal
authors: Department of nephrology, school of medicine, Süleyman Demirel university, Isparta, Turkey.
authors: T
authors: T
authors: Sezer
authors: Department of radiology, school of medicine, Süleyman Demirel university, 32260 Isparta, Turkey.
authors: A
authors: A
authors: Umul
authors: Department of biostatistics, school of medicine, Süleyman Demirel university, Isparta, Turkey.
authors: H
authors: H
authors: Orhan
authors: Department of radiology, school of medicine, Süleyman Demirel university, 32260 Isparta, Turkey.
authors: A O
authors: AO
authors: Çelik
authors: Department of radiology, school of medicine, Süleyman Demirel university, 32260 Isparta, Turkey.
authors: H
authors: H
authors: Demirtaş
authors: Department of radiology, school of medicine, Süleyman Demirel university, 32260 Isparta, Turkey.
authors: Ö
authors: Ö
authors: Yilmaz
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D003287:Contrast Media; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D021621:Imaging, Three-Dimensional; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male; D008875:Middle Aged; D012077:Renal Artery / Q000000981:diagnostic imaging*; D012078:Renal Artery Obstruction / Q000000981:diagnostic imaging*; D055425:Respiratory-Gated Imaging Techniques / Q000379:methods*; D055815:Young Adult
chemical_list: D003287:Contrast Media; C064925:gadodiamide; D019786:Gadolinium DTPA
keywords: Arterial hypertension; MR angiography; MR imaging; Renal artery; Technique