Artifacts’ Detection for MRI Non-Metallic Needles: Comparative Analysis for Artifact Evaluation Using K-Means and Manual Quantification

Interventional biopsy needles need to be accurately localized the target tissue during magnetic resonance imaging (MRI) interventions. In this context, severe susceptibility artifacts affect visibility of structures in MR images depending on needle’s material composition. particular, standard for spinal cord made nickel-titanium alloys (NiTi) generate massive MRI. Consequently, does not allow precise placement needle target. The aim was prove that using a non-metallic can significantly reduce appearance artifacts. Hence, work used new combination materials based an enforced fiber bundle as inner core with different outer hollow sheets fabricate seven prototypes interventional optimize their visualization MRI scans. Susceptibility were evaluated by automatic quantification K-means algorithm and compared manual quantification. width length measured each needle. showed lower comparison provided capability detecting images, facilitating qualitative quantitative assessment