After Varian launched HyperSight and it was implemented clinically, how did opinions from the frontlines change? If you ask a radiologist: "Can I use HyperSight to replace the department’s 256-slice CT for hospital-wide cardiac coronary angiography screening?" Answer: No need. Physical structure dictates high-end spiral CT’s dominance in ultimate SNR. However, in the context of tumor diagnosis, this gap is clinically imperceptible.