Standard No.:	GB/T 17589-1998
English Name:	Specification of Image Quality Assurance Test for X-ray Equipment for Computed Tomography
Chinese Name:	X射线计算机断层摄影装置影像质量保证检测规范
Professional Classification:	GB    National Standard
Source Content Issued by:	AQSIQ
Issued on:	1998-12-07
Implemented on:	1999-6-1
Status:	superseded
Superseded by:	GB 17589-2011 Specifications for quality assurance test for computed tomography X-ray scanners
Superseded on:	2012-5-1
Target Language:	English
File Format:	PDF
Word Count:	3000 words
Translation Price(USD):	304.0
Delivery:	via email in 1 business day

This standard specifies the requirements and test methods for image quality assurance test items of medical X-ray equipment for computed tomography (hereinafter referred to as "CT equipment"). This standard is applicable to the acceptance testing, status test and constancy test of CT equipment in use. It is not applicable to the quality control of CT equipments in the production and image hardcopy system used in match with the CT equipment.

1 Scope 2 Definitions 3 Test Items and Requirements 4 Test Method 4.1 Positioning cursor 4.2 Slice thickness 4.3 CT number, noise and uniformity 4.4 High-contrast resolution 4.5 Low-contrast resolution 4.6 CT dose index 4.7 Diagnostic couch positioning 4.8 Slope angle of scanning rack