Perspecta: A Minimalist, Launch-Driven Desktop DICOM Viewer for Targeted Review

Abstract

Perspecta is a native desktop DICOM viewer implemented in Rust (using \texttt{egui/eframe}), designed to reduce launch overhead when opening and interacting with a specific image, report, or small mammography image group (e.g., 1\,$\times$\,2, 1\,$\times$\,3, 2\,$\times$\,2, or 2\,$\times$\,4 layouts). Perspecta is positioned for targeted-review environments that value low-overhead launch, simple integration via a custom URL scheme, and a compact set of high-utility interactions including overlays and measurement. The interface is intentionally minimalist, avoiding button-heavy UI chrome and prioritizing screen real estate for image display. In preliminary local synthetic benchmarks, Perspecta achieved median end-to-end launch latencies of 139 ms for a single image and 221 ms for an eight-image group on a commodity x86\_64 system. This paper describes the motivation, core design decisions, implementation architecture, and differentiation of Perspecta from established open-source viewers. Rather than replacing full PACS workflows, Perspecta is designed as a focused complement for deterministic targeted review. Perspecta is a research/open-source prototype and is not cleared, certified, or validated for diagnostic clinical use.