Functional renal imaging: New trends in radiology and nuclear medicine

  • Durand E
  • Chaumet-Riffaud P
  • Grenier N
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The objective of this work is to compare the characteristics of various techniques for functional renal imaging, with a focus on nuclear medicine and magnetic resonance imaging. Even with low spatial resolution and rather poor signal-to-noise ratio, classical nuclear medicine has the advantage of linearity and good sensitivity. It remains the gold standard technique for renal relative functional assessment. Technetium-99m (99mTc)-labeled diethylenetriamine penta-acetate remains the reference glomerular tracer. Tubular tracers have been improved:123I- or131I- hippuran,99mTc-MAG3 and, recently,99mTc-nitrilotriacetic acid. However, advancement in molecular imaging has not produced a groundbreaking tracer. Renal magnetic resonance imaging with classical gadolinated tracers probably has potential in this domain but has a lack of linearity and, therefore, its value still needs evaluation. Moreover, the advent of nephrogenic systemic fibrosis has delayed its expansion. Other developments, such as diffusion or blood oxygen level-dependent imaging, may have a role in the future. The other modalities have a limited role in clinical practice for functional renal imaging. © 2011 Elsevier Inc. All rights reserved.

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  • Emmanuel Durand

  • Philippe Chaumet-Riffaud

  • Nicolas Grenier

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