PURPOSE: To evaluate screening with three-dimensional (3D) phase- contrast magnetic resonance (MR) angiography with a phased-array multicoil to detect renal artery stenosis. MATERIALS AND METHODS: Fifty consecutive patients suspected of having renovascular disease were prospectively examined with 3D phase-contrast MR imaging with a phased-array multicoil. Findings were correlated with those at intraarterial digital subtraction angiography (DSA) as the standard of reference for grade of stenosis. RESULTS: MR angiography depicted 101 of 103 renal arteries depicted at intraarterial DSA; the two missed arteries were an accessory artery outside the imaging volume and an artery with a stent. At intraarterial DSA, a stenosis was found in 31 of 101 arteries. On the basis of findings at 3D phase-contrast MR angiography, the presence of any degree of stenosis was correctly depicted in 29 of 31 cases and the absence of stenosis was correctly depicted in 66 of 70 cases (accuracy, 94%; sensitivity, 94%; negative predictive value, 97%). Overall accuracy was 97% for correct depiction of severe renal artery stenosis (>50%). CONCLUSION: 3D phase-contrast MR angiography with a phased- array multicoil was an accurate noninvasive screening technique in patients with suspected renal artery stenosis

De Cobelli, F., Mellone, R., Salvioni, M., Vanzulli, A., Sironi, S., Manunta, P., et al. (1996). Renal artery stenosis: Value of screening with three-dimensional phase- contrast MR angiography with a phased-array multicoil. RADIOLOGY, 201(3), 697-703 [10.1148/radiology.201.3.8939218].

Renal artery stenosis: Value of screening with three-dimensional phase- contrast MR angiography with a phased-array multicoil

SIRONI, SANDRO;
1996

Abstract

PURPOSE: To evaluate screening with three-dimensional (3D) phase- contrast magnetic resonance (MR) angiography with a phased-array multicoil to detect renal artery stenosis. MATERIALS AND METHODS: Fifty consecutive patients suspected of having renovascular disease were prospectively examined with 3D phase-contrast MR imaging with a phased-array multicoil. Findings were correlated with those at intraarterial digital subtraction angiography (DSA) as the standard of reference for grade of stenosis. RESULTS: MR angiography depicted 101 of 103 renal arteries depicted at intraarterial DSA; the two missed arteries were an accessory artery outside the imaging volume and an artery with a stent. At intraarterial DSA, a stenosis was found in 31 of 101 arteries. On the basis of findings at 3D phase-contrast MR angiography, the presence of any degree of stenosis was correctly depicted in 29 of 31 cases and the absence of stenosis was correctly depicted in 66 of 70 cases (accuracy, 94%; sensitivity, 94%; negative predictive value, 97%). Overall accuracy was 97% for correct depiction of severe renal artery stenosis (>50%). CONCLUSION: 3D phase-contrast MR angiography with a phased- array multicoil was an accurate noninvasive screening technique in patients with suspected renal artery stenosis
Articolo in rivista - Articolo scientifico
MR angiography , artery stenosis
English
1996
201
3
697
703
none
De Cobelli, F., Mellone, R., Salvioni, M., Vanzulli, A., Sironi, S., Manunta, P., et al. (1996). Renal artery stenosis: Value of screening with three-dimensional phase- contrast MR angiography with a phased-array multicoil. RADIOLOGY, 201(3), 697-703 [10.1148/radiology.201.3.8939218].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/25958
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