Peter B. Barker

Fully automated open-source analysis and interactive visualization of magnetic resonance spectroscopic imaging (MRSI) data in Osprey-MRSI

The paper introduces Osprey-MRSI, an open-source software package for fully automated MRSI data analysis and visualization, validated across multiple vendors and sites.

Identifying out-of-voxel echoes in edited MRS with phase cycle inversion

The paper introduces a method to identify out-of-voxel signals in MRS by analyzing phase cycles, leading to improved suppression of artifacts through optimized gradients.

The Proton Resonance Enhancement for CEST imaging and Shift Exchange (PRECISE) family of RF pulse shapes for Chemical Exchange Saturation Transfer MRI

The paper develops a new RF pulse shape for CEST MRI using gradient ascent optimization, showing improved contrast in phantoms and live mice compared to Gaussian and Fermi pulses.

Longitudinal changes in brain metabolites in healthy subjects and patients with first episode psychosis (FEP): a 7-Tesla MRS study

This study uses 7-Tesla MRS to track longitudinal changes in brain metabolites in FEP patients and healthy controls, identifying potential trait and state markers for psychosis.

The Value of Zero-filling in In Vivo MRS

This paper demonstrates that 2x zero-filling improves modeling accuracy in in vivo MRS data compared to no zero-filling, with no additional benefit from higher zero-filling.

A multimodal study of a first episode psychosis cohort: potential markers of antipsychotic treatment resistance

The paper identifies potential biomarkers for antipsychotic treatment resistance in first episode psychosis using multimodal data from 138 patients.