Introduction: This study evaluates the role of sentinel lymph node mapping with spect-ct in breast cancer in contemporary surgical practice, assessing its impact on clinical outcomes, procedural accuracy, and patient safety in a prospective randomized analysis. Materials and Methods: A prospective randomized study was conducted on 440 patients from January 2018 to June 2024 at a tertiary care center. Patients were divided into SPECT-CT guided (n=220) and Planar scintigraphy (n=220) groups. Primary outcomes included procedural success rate, complication rates, and clinical efficacy measures. Results: The SPECT-CT guided group demonstrated significantly improved primary outcomes compared to Planar scintigraphy (p<0.05). Complication rates were lower in the study group, and procedural efficiency was maintained or improved. Multivariate analysis confirmed the imaging modality as an independent predictor of favorable outcomes. Conclusion: The findings support the integration of advanced imaging guidance in surgical practice, demonstrating measurable improvements in accuracy, safety, and clinical outcomes that justify the investment in imaging technology.