Sensitive enhancement of vessel wall imaging with an endoesophageal Wireless Amplified NMR Detector (WAND).

ABSTRACT:

Purpose

To improve the imaging quality of vessel walls with an endoesophageal Wireless Amplified NMR Detector (WAND).

Methods

A cylindrically shaped double-frequency resonator has been constructed with a single metal wire that is self-connected by a pair of nonlinear capacitors. The double-frequency resonator can convert wirelessly provided pumping power into amplified MR signals. This compact design makes the detector easily insertable into a rodent esophagus.

Results

The detector has good longitudinal and axial symmetry. Compared to an external surface coil, the WAND can enhance detection sensitivity by at least 5 times, even when the distance separation between the region of interest and the detector's cylindrical surface is twice the detector's own radius. Such de

SUBMITTER: Zeng X 

PROVIDER: S-EPMC5808944 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature