Meeting Banner
Abstract #3178

Lighting Up Premetastatic Niche Using Magnetic Particle Spectroscopy for Highly Sensitive Detection of Extracellular Matrix Viscoelasticity

Wenhui Huang1, Wei Li2, Kun Wang3, Jie Tian3, and Shuixing Zhang1
1Molecular Imaging Center, Jinan University First Affiliated Hospital, Guangzhou, China, 2School of Medical Technology, Beijing Institute of Technology, Beijing, China, 3CAS Key Laboratory of Molecular Imaging, Institute of Automation, Chinese Academy of Sciences, Beijing, China

Synopsis

Keywords: Small Animals, fMRI Acquisition, Magnetic Particle Imaging

Motivation: Premetastatic niche (PMN) and metastatic niche are the 2 crucial steps in cancer metastasis. However, most techniques only detect the second step when secondary tumors have been formed.

Goal(s): Extracelluar matrix remodelling (rECM) exhibits subtle but significant viscoelastic changes, indicating the fomation of PMN. Here we address the question of whether rECM could be detected by magnetic particle spectroscopy using a novel method.

Approach: We puposed and validated the harmonic phase shift detection in an in-house COM-MPS system for quantification of tissue viscosity.

Results: In initial experiments, the sensitivity in detecting tissue viscosity was between 0.5mPa~10.03 mPa using an in-house COM-MPS system.

Impact: With such a low-cost and portable COM-MPS device, this technique has potential to provide a sensitive and convenient method to identify rECM at the early stage of tumor metastasis or before the formation of secondary tumors.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.

Keywords