Related Experiment Video
Updated: Dec 26, 2025

Functional Neuroimaging Using Ultrasonic Blood-brain Barrier Disruption and Manganese-enhanced MRI
Published on: July 12, 2012
Manganese-Enhanced Magnetic Resonance Imaging: Application in Central Nervous System Diseases
1Department of Radiology, The Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital & Cancer Center, Kunming, China.
Abstract:
Manganese-enhanced magnetic resonance imaging (MEMRI) relies on the strong paramagnetism of Mn2+. Mn2+ is a calcium ion analog and can enter excitable cells through voltage-gated calcium channels. Mn2+ can be transported along the axons of neurons via microtubule-based fast axonal transport. Based on these properties, MEMRI is used to describe neuroanatomical structures, monitor neural activity, and evaluate axonal transport rates. The application of MEMRI in preclinical animal models of central nervous system (CNS) diseases can provide more information for the study of disease mechanisms. In this article, we provide a brief review of MEMRI use in CNS diseases ranging from neurodegenerative diseases to brain injury and spinal cord injury.
Insights
Manganese-enhanced MRI (MEMRI) uses Mn2+ to visualize brain structures and neural activity. This technique aids in studying central nervous system diseases, including neurodegeneration and injuries, in preclinical models.
Area of Science:
- Neuroimaging
- Biophysics
- Cellular Neuroscience
Background:
- Manganese-enhanced MRI (MEMRI) leverages the paramagnetic properties of Mn2+.
- Mn2+ acts as a calcium analog, entering excitable cells via voltage-gated calcium channels.
- Fast axonal transport facilitates Mn2+ movement along neuronal axons.
Purpose of the Study:
- To review the applications of MEMRI in studying central nervous system (CNS) diseases.
- To highlight MEMRI's utility in preclinical models for understanding disease mechanisms.
- To explore MEMRI's role in neuroanatomy, neural activity monitoring, and axonal transport assessment.
Main Methods:
- Utilizing Mn2+ as a contrast agent in MRI.
- Exploiting Mn2+ uptake through voltage-gated calcium channels.
- Leveraging fast axonal transport for neuronal tracing.
Main Results:
- MEMRI effectively visualizes neuroanatomical structures.
- The technique monitors neural activity and evaluates axonal transport rates.
- MEMRI provides valuable insights into CNS disease mechanisms in preclinical models.
Conclusions:
- MEMRI is a versatile tool for neuroscience research.
- Its application extends to various CNS conditions, including neurodegenerative diseases and injuries.
- MEMRI enhances the study of disease mechanisms in preclinical settings.
Related Concept Videos
Magnetic Resonance Imaging
Applications Of NMR In Biology

