ARRT CT Registry Exam Prep — Built for the 2026 Spec. The CT registry coach built to the September 2026 spec that teaches the two things that actually fail people — the Procedures protocols (43% of the exam) and the dose vocabulary — contrast phases, CTDIvol vs DLP vs effective dose, HU anchors, and every artifact by cause and fix, drilled by ear until they are automatic. 46-question practice bank, every fact taught aloud with a memory hook, explained answers, review tests at the real passing bar. Your first module is free — no card required.