Accuracy of Non-Contrast CT Scans in Diagnosing Subarachnoid Hemorrhage

This chapter explores the evolving accuracy of non-contrast CT scans in diagnosing subarachnoid hemorrhage, discussing the impact of CT technology advancements and the common practice of the six-hour rule in emergency settings. It highlights studies showing high sensitivity within the six-hour window, challenges the perfection of the rule through validation cases, and emphasizes the importance of early imaging for accurate diagnosis and treatment decisions.