Flow inversion-prepared Non-contrast Enhancement in the Steady State (FINESS): a novel SSFP-Dixon technique for non- contrast MR angiography of the renal arteries
نویسندگان
چکیده
M. Saranathan, E. Bayram, V. Nimbargi, R. Venkatesan, N. Takei, M. Miyoshi, W. Sun, and J. Glockner Applied Science Laboratory, GE Healthcare, Rochester, MN, United States, MR Engineering, GE Healthcare, Waukesha, WI, United States, GE Healthcare, Bangalore, India, MR Applied Science Laboratory, GE Yokagawa Medical Systems, Hino, Japan, Dept. of Radiology, Mayo Clinic, Rochester, MN, United States
منابع مشابه
Group-encoded Ungated Inversion Nulling for Non-contrast Enhancement in the Steady State (GUINNESS): a balanced SSFP-Dixon technique for breath-held non-contrast MRA
Purpose: While contrast-enhanced MR Angiography (CEMRA) is widely used for evaluation of vascular pathology, recent nephrogenic systemic fibrosis (NSF) concerns following administration of Gadolinium based contrast agents have spurred interest in non-contrast MRA methods. Balanced steady state free precession (bSSFP) imaging [1-3] has shown great promise due to its high SNR and short scan times...
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BACKGROUND The aim of our study was the investigation of a novel navigator-gated three-dimensional (3D) steady-state free-precession (SSFP) sequence for free-breathing renal magnetic resonance angiography (MRA) without contrast medium, and to examine the advantage of an additional inversion prepulse for improved contrast. METHODS Eight healthy volunteers (mean age 29 years) and eight patients...
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Figure 2. (A) Non contrast IR-SSFP MRA in a patient with transplanted right kidney demonstrates a mild less than 50% luminal narrowing at the anastamosis (long white arrow) with ipsilateral native right distal common iliac artery (short arrow). First order branches (arrowheads) are unremarkable. (B) Non contrast IR-SSFP MRA in a patient with transplanted right kidney demonstrates normal transpl...
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Introduction: Renal artery stenosis (RAS) is a well-known cause of renal hypertension and can lead to chronic kidney failure. The recent connection between gadolinium contrast agents and nephrogenic systemic fibrosis (NSF) has prompted renewed interest in non-contrast enhanced MR angiography (NCE MRA) for the diagnosis of RAS, most notably methods based on 3D balanced steady-state free precessi...
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INTRODUCTION: Inversion-prepared b-SSFP imaging is a common technique for non-contrast-enhanced (non-CE) MR angiography (MRA) of the renal arteries [15]. With this method, a slab-selective inversion of the volume of interest is followed by a delay TI and subsequent data acquisition. While inverted stationary tissues recover during TI and appear with low signal, non-inverted blood enters the lab...
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