ASTM International - ASTM E1672-95(2001)e1
Standard Guide for Computed Tomography (CT) System Selection
|Publication Date:||15 January 1995|
|ICS Code (IT applications in health care technology):||35.240.80|
1.1 This guide covers guidelines for translating application requirements into computed tomography (CT) system requirements/specifi
1.2 Computed tomography (CT) may be used for new applications or in place of film radiography, provided that the capability to disclose physical features or indications that form the acceptance/rejection
1.3 Computed tomography (CT) systems use a set of transmission measurements made along a set of paths projected through the examination object from many different directions. Each of the transmission measurements within these views is digitized and stored in a computer, where they are subsequently conditioned (for example, normalized and corrected) and reconstructed by one of a variety of techniques. An in-depth treatment of CT principles is given in Guide E1441.
1.4 Computed tomography (CT), as with conventional radiography and radioscopic examinations, is broadly applicable to any material or examination object through which a beam of penetrating radiation may be passed and detected, including metals, plastics, ceramics, metallic/nonmetallic
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.