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Consensus-based technical recommendations for clinical translation of renal ASL MRI
Journal article   Open access   Peer reviewed

Consensus-based technical recommendations for clinical translation of renal ASL MRI

Fabio Nery, Charlotte E Buchanan, Anita A Harteveld, Aghogho Odudu, Octavia Bane, Eleanor F Cox, Katja Derlin, H Michael Gach, Xavier Golay, Marcel Gutberlet, …
Magma (New York, N.Y.), Vol.33(1), pp.141-161
02/2020
DOI: 10.1007/s10334-019-00800-z
PMCID: PMC7021752
PMID: 31833014
url
https://doi.org/10.1007/s10334-019-00800-zView
Published (Version of record) Open Access

Abstract

This study aimed at developing technical recommendations for the acquisition, processing and analysis of renal ASL data in the human kidney at 1.5 T and 3 T field strengths that can promote standardization of renal perfusion measurements and facilitate the comparability of results across scanners and in multi-centre clinical studies. An international panel of 23 renal ASL experts followed a modified Delphi process, including on-line surveys and two in-person meetings, to formulate a series of consensus statements regarding patient preparation, hardware, acquisition protocol, analysis steps and data reporting. Fifty-nine statements achieved consensus, while agreement could not be reached on two statements related to patient preparation. As a default protocol, the panel recommends pseudo-continuous (PCASL) or flow-sensitive alternating inversion recovery (FAIR) labelling with a single-slice spin-echo EPI readout with background suppression and a simple but robust quantification model. This approach is considered robust and reproducible and can provide renal perfusion images of adequate quality and SNR for most applications. If extended kidney coverage is desirable, a 2D multislice readout is recommended. These recommendations are based on current available evidence and expert opinion. Nonetheless they are expected to be updated as more data become available, since the renal ASL literature is rapidly expanding.
Algorithms Cerebrovascular Circulation Consensus Delphi Technique Echo-Planar Imaging Humans Image Processing, Computer-Assisted - methods Kidney - blood supply Kidney - diagnostic imaging Kidney Transplantation Magnetic Resonance Angiography Magnetic Resonance Imaging - trends Multicenter Studies as Topic Perfusion Renal Artery - diagnostic imaging Reproducibility of Results Signal-To-Noise Ratio Spin Labels Translational Medical Research - trends

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