Resistivity measurements play a foundational role in geosteering and formation evaluation, providing key insights into subsurface lithology and fluid saturation. In CTD operations, which are increasingly used for re-entry wells and multilateral developments, maintaining real-time awareness of formation properties is important for trajectory adjustments and optimal reservoir contact. Unlike conventional rotary drilling assemblies, CTD systems often operate in complex well architectures with rapid changes in inclination and azimuth, magnifying the importance of high-fidelity downhole measurements to support geosteering decisions.