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SF-CT-PD is a single-file derivative of the DICOM-CT-PD file format for CT projection data that stores projections within a single DICOM file, stores pixel data detector-row-major, and stores projection-specific parameters as ordered tables within the DICOM header. We compared the performance of SF-CT-PD against DICOM-CT-PD in read speed, disk usage, and network transfer. Cases were sampled from TCIA’s “LDCT-and-Projection-data" dataset and encoded into DICOM-CT-PD and SF-CT-PD representations. Read tests were conducted for four programming languages on hard-disk and solid-state drives. Rsync-based network transfer analysis measured the Ethernet throughput for each format. Accuracy of the implementation was confirmed by analyzing reconstructions and transfer file-checksums for each format. SF-CT-PD was generally more performant in read operations and disk usage. Network throughput was equivalent between the formats, with file-checksums indicating file integrity. Reconstruction accuracy was supported by difference image agreements. SF-CT-PD represents a viable extension of DICOM-CT-PD where a single file is preferred.
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