Quantitative investigation of the X-ray absorption coefficient in computed tomography

✍ Scribed by M. Yamamoto; H. Imanaga; M. Jimbo; K. Kitamura; Y. Saito; N. Kobayashi

• Publisher: Springer
• Year: 1978
• Tongue: English
• Weight: 182 KB
• Volume: 16
• Category: Article
• ISSN: 0028-3940
• DOI: 10.1007/bf00395375

✦ Synopsis

From printout data of 50 normal and 50 abnormal scans of a brain slice picking up the basal ganglia, the numerical values of SD and DC were obtained and those values lying inside M + 20 were arbitrarily regarded as normal. By these criteria two cases (4%) were diagnosed as false negative and three cases (6%) as false positive, with a misdiagnosis rate of 5%.