Data from: On the partial volume effect in magnetic particle imaging

This dataset contains raw and processed data used to evaluate the partial
volume effect (PVE) in magnetic particle imaging (MPI), an emerging
tomographic imaging modality that visualizes superparamagnetic iron oxide
nanoparticle (SPION) distributions with high sensitivity and quantitative
accuracy. The dataset includes raw MPI images in NRRD and DICOM formats,
optical images of scanned phantoms in TIFF format, and processed Excel
files with quantitative analyses. Data were obtained using Feraheme and
VivoTrax+ tracers scanned with various phantom geometries (prisms,
cylinders, and capillaries) and characteristic sizes. Additional
experiments included scans of VivoTrax+ phantoms across multiple
concentrations and at two independent sites. MPI image processing was
performed using a reported Wiener filter, with outputs such as signal
recovery coefficients, signal-to-noise ratios, and voxel-based
reconstructions. The dataset is organized by model geometry and includes
both raw data and processed results, enabling analysis of signal
distribution, peak and plateau signal values, and image resolution
effects. Researchers can use these data to study the PVE in MPI, evaluate
the impact of finite resolution on signal quantification, and develop
methods to sharpen MPI images or correct for PVEs. The files are
compatible with standard data visualization and analysis tools such as
3DSlicer, Horos, and MATLAB, while Excel files are ready for direct
interpretation. This dataset has broader relevance for advancing
quantitative imaging techniques in MPI and beyond by providing insights
into the influence of object size and shape on imaging accuracy. The
dataset is provided for non-commercial scientific purposes.