The Hounsfield scale named after Sir Godfrey Hounsfield, is a quantitative scale for describing radiodensity. It is frequently used in CT scans, where its value is also termed CT number.
Insufficient intraoperative distraction and low Hounsfield unit (HU) value showed a strong relationship with postoperative intervertebral height reduction following single stand-alone cervical PEEK cage ACDF 1).
An early elevated white blood cell (WBC) count and HU value could independently predict delayed cerebral ischemia (DCI) occurrence between 4 and 30 days after after aneurysmal subarachnoid hemorrhage. Furthermore, WBC count was positively correlated with HU value, and the combined WBC-HU demonstrated a superior prediction ability for DCI development compared with the individual indicator 2).