Artifact-reduced imaging of biopsy needles with 2D multispectral imaging.

ABSTRACT:

Purpose

Magnetic resonance (MR) guidance for biopsy procedures requires high intrinsic soft-tissue contrast. However, artifacts induced by the metallic needle can reduce its localization and require low-susceptibility needle materials with poorer cutting performance. In a proof of concept, we demonstrate the feasibility of 2D multispectral imaging (2DMSI) for both needle tracking and for needle artifact reduction for more precise needle localization and to enable the usage of needle materials with higher susceptibility.

Method

We applied 2DMSI for imaging of MR-compatible biopsy needles, conventional stainless-steel needles, and mixed-material needles and compared it to conventional techniques. In addition, we exploited intrinsic off-resonance information for passive needle

SUBMITTER: Weber H 

PROVIDER: S-EPMC5910245 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature