Measurements in ultrasonography and computerized tomography

Measurements have been a major criterion for the diagnosis by means of CT or ultrasonography. With the improvements achieved in image quality, the measurements became less important for the diagnostic process of distinguishing normal from pathologic findings. A factor that fostered this development is the lack of tables showing normal measurements and data of pathologic conditions together with validations in terms of disease quality. Also, only few information was available on how to take measurements. The book in hand is meant to close this gap. The material presented is the result of a systematic scanning of the literature for reported measured data. The data have been put together in tables, and drawings are given to explain the relevant measuring method. Thus the reader is able to compare various measuring achievements. The tables also give standard deviations and deviations in percentage. Every chapter is concluded with an alphabetic list of references. The book discusses differing results obtained by various working groups and suggests explanations. Models for calculating surfaces and volumina are presented and explained. All original papers from which information has been drawn are given in an index. (orig./MG)