The Applicability of Amide Proton Transfer Imaging in the Nervous System: Focus on Hypoxic-Ischemic Encephalopathy in the Neonate
In recent years, magnetic resonance imaging (MRI) has become more widely used in neonatal hypoxic-ischemic encephalopathy (HIE), involving, for example, evaluation of cerebral edema, white matter fiber bundle tracking, cerebral perfusion status, and assessment of brain metabolites. MRI has many imaging modalities. However, its application for assessing changes in the internal environment at the tissue and cellular level after hypoxia–ischemia remains a challenge and is currently the focus of intense research. Based on the exchange between amide protons of proteins and polypeptides and free water protons, amide proton transfer (APT) imaging can display changes in pH and protein concentrations in vivo. This paper is a review of the principles of APT imaging, with a focus on the potential application of APT imaging for neonatal HIE.
KeywordsNeonatal Hypoxic-ischemic encephalopathy Magnetic resonance imaging Amide proton transfer pH-sensitive Protein
This study was supported by the National Natural Science Foundation of China (Nos. 30570541, 30770632, 81271631) and the Outstanding Scientific Fund of Shengjing Hospital (No. 201402).
Yang Zheng, data acquisition, analysis, and writing. Xiaoming Wang, study concept and design, critical revision of manuscript for intellectual content.
Compliance with Ethical Standards
Conflict of interest
The authors declare that they have no conflict of interest.
This article does not contain any studies with human or animals performed by any of the authors.
Informed consent was not applicable in the study.
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