期刊
JOURNAL OF MAGNETIC RESONANCE
卷 239, 期 -, 页码 139-142出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jmr.2013.09.019
关键词
MRI; Lung morphometry; Diffusion; Hyperpolarized gas
资金
- NHLBI NIH HHS [R01 HL070037] Funding Source: Medline
In a recently published paper by Parra-Robles and Wild [1], the authors challenge the in vivo lung morphometry technique (based on hyperpolarized gas diffusion MRI) developed by our Washington University research group. In this Commentary we demonstrate that the main conclusion of Parra-Robles and Wild, that our MRI-based lung morphometry technique produces inaccurate estimates of the airway dimensions, does not have any scientific basis and is not in agreement with the considerable body of peer-reviewed scientific reports as well as with Parra-Robles and Wild's own data. On the contrary, our technique has a strong theoretical background, is validated, and provides accurate 3D tomographic information on lung microstructural parameters previously available only from invasive biopsy specimens. This technique has already produced a number of results related to lung morphology and function that were not previously available. In our Commentary we also discuss a number of other incorrect statements in and shortcomings of Parra-Robles and Wild's paper. (C) 2013 Elsevier Inc. All rights reserved.
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