Magnetic Resonance Angiography of the Renal Arteries Using Three-Dimensional Balanced Turbo Field-Echo Sequence with Progressive Spin Saturation

Abstract

We developed a new method employing a balanced turboˆeld-echo (b-TFE) sequence with progressive spin saturation (PSS) for magnetic resonance angiography (MRA) of the renal arteries during breath-holding without the use of contrast agents. We compared our new method with conventional dynamic MRA of renal arteries. For all portions, renal MRA using b-TFE with PSS was clearer to deˆne (pº0.002) than did conventional dynamic MRA. We conˆrmed that angiography of renal arteries using b-TFE with PSS was more useful than conventional dynamic MRA.