ImageVerifierCode 换一换
格式:PDF , 页数:14 ,大小:251.74KB ,
资源ID:994312      下载积分:10000 积分
快捷下载
登录下载
邮箱/手机:
温馨提示:
如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
如填写123,账号就是123,密码也是123。
特别说明:
请自助下载,系统不会自动发送文件的哦; 如果您已付费,想二次下载,请登录后访问:我的下载记录
支付方式: 支付宝扫码支付 微信扫码支付   
注意:如需开发票,请勿充值!
验证码:   换一换

加入VIP,免费下载
 

温馨提示:由于个人手机设置不同,如果发现不能下载,请复制以下地址【http://www.mydoc123.com/d-994312.html】到电脑端继续下载(重复下载不扣费)。

已注册用户请登录:
账号:
密码:
验证码:   换一换
  忘记密码?
三方登录: 微信登录  

下载须知

1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。
2: 试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。
3: 文件的所有权益归上传用户所有。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 本站仅提供交流平台,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

版权提示 | 免责声明

本文(NEMA MITA XR 30-2016 Quality Control Tools for Digital Projection Radiography.pdf)为本站会员(deputyduring120)主动上传,麦多课文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文库(发送邮件至master@mydoc123.com或直接QQ联系客服),我们立即给予删除!

NEMA MITA XR 30-2016 Quality Control Tools for Digital Projection Radiography.pdf

1、NEMA Standards PublicationNational Electrical Manufacturers AssociationNEMA/MITA XR 30-2016Quality Control Tools for Digital Projection RadiographyNEMA/MITA XR 30-2016Page 1 2016 National Electrical Manufacturers Association NEMA Standards Publication NEMA/MITA XR 30-2016 Quality Control Tools for D

2、igital Projection Radiography Published by: National Electrical Manufacturers Association 1300 North 17th Street, Suite 900 Rosslyn, Virginia 22209 www.nema.org www.medicalimaging.org 2016 National Electrical Manufacturers Association. All rights including translation into other languages, reserved

3、under the Universal Copyright Convention, the Berne Convention for the Protection of Literary and Artistic Works, and the International and Pan American Copyright Conventions. NEMA/MITA XR 30-2016 Page 2 2016 National Electrical Manufacturers Association NOTICE AND DISCLAIMER The information in this

4、 publication was considered technically sound by the consensus of persons engaged in the development and approval of the document at the time it was developed. Consensus does not necessarily mean that there is unanimous agreement among every person participating in the development of this document.

5、National Electrical Manufacturers Association (NEMA) standards and guideline publications, of which the document contained herein is one, are developed through a voluntary consensus standards development process. This process brings together volunteers and/or seeks out the views of persons who have

6、an interest in the topic covered by this publication. While NEMA administers the process and establishes rules to promote fairness in the development of consensus, it does not write the document and it does not independently test, evaluate, or verify the accuracy or completeness of any information o

7、r the soundness of any judgments contained in its standards and guideline publications. NEMA disclaims liability for any personal injury, property, or other damages of any nature whatsoever, whether special, indirect, consequential, or compensatory, directly or indirectly resulting from the publicat

8、ion, use of, application, or reliance on this document. NEMA disclaims and makes no guaranty or warranty, expressed or implied, as to the accuracy or completeness of any information published herein, and disclaims and makes no warranty that the information in this document will fulfill any of your p

9、articular purposes or needs. NEMA does not undertake to guarantee the performance of any individual manufacturer or sellers products or services by virtue of this standard or guide. In publishing and making this document available, NEMA is not undertaking to render professional or other services for

10、 or on behalf of any person or entity, nor is NEMA undertaking to perform any duty owed by any person or entity to someone else. Anyone using this document should rely on his or her own independent judgment or, as appropriate, seek the advice of a competent professional in determining the exercise o

11、f reasonable care in any given circumstances. Information and other standards on the topic covered by this publication may be available from other sources, which the user may wish to consult for additional views or information not covered by this publication. NEMA has no power, nor does it undertake

12、 to police or enforce compliance with the contents of this document. NEMA does not certify, test, or inspect products, designs, or installations for safety or health purposes. Any certification or other statement of compliance with any health or safetyrelated information in this document shall not b

13、e attributable to NEMA and is solely the responsibility of the certifier or maker of the statement. NEMA/MITA XR 30-2016Page i 2016 National Electrical Manufacturers Association CONTENTS Foreword . ii Conventions ii Member Company List iii Section 1 Overview iv 1.1 Scope 1 1.2 Rationale . 1 1.3 Refe

14、rences 2 1.4 Definitions . 2 Section 2 Requirements 5 2.1 Access to and Export of Original Data . 5 2.2 Electronic Documentation of Image Processing Parameters . 5 Annex A Rationales . 5 NEMA/MITA XR 30-2016 Page ii 2016 National Electrical Manufacturers Association Foreword This standard is intende

15、d to be used by medical imaging device manufacturers in the design and manufacture of x-ray equipment intended to be used for projection radiography. This standard was developed by the Computed Radiography-Digital Radiography Group of the X-ray Imaging Section of the Medical Imaging the pixel values

16、 alone will suffice. NOTE 2original data images and presentation data images are not required to be simultaneously generated and transmitted from the same acquisition. NOTE 3Additional equipment may be required (e.g. PC, CD/DVD drive, approved USB device, laptop wired by Ethernet connection, etc.) t

17、o enable export. The access to the original data should be restricted to a dedicated user (e.g. a quality control user) in order to prevent use during clinical operation. 2.2 Electronic Documentation of Image Processing Parameters The equipment shall provide means to electronically document image pr

18、ocessing parameters. The equipment shall provide means to export the image processing parameters sets in a compatible format file to an output device. The accompanying documents shall specify the methodology for export and format of the exported data. NOTE 1Due to the proprietary nature of image pro

19、cessing algorithms, image processing parameter information can be provided in a manner that protects proprietary content, but sufficiently enables validation of constancy (e.g. referencing generically as “Image Processing Parameters Set A: parameter 1 value, parameter 2 value, etc.”). NOTE 2Addition

20、al equipment may be required (e.g. PC, CD/DVD drive, approved USB device, laptop wired by Ethernet connection, etc.) to enable export. Data elements incorporated in the electronic documentation may also include the date of configuration of the image processing parameters set. Data elements incorpora

21、ted in the electronic documentation may also include the ability to identify the user configuring the image processing parameters set. A documentation of the factory default image processing parameters sets shall be available. NEMA/MITA XR 30-2016 Page 6 2016 National Electrical Manufacturers Associ

22、ation Annex ARationales (Informative) General Guidance This annex provides a concise rationale for the important requirements of this standard. Its purpose is to promote effective application of the standard by explaining the reasons for the requirements and provide additional guidance where appropr

23、iate. A.1 Access To and Export of Original Data Digital images exported from imaging equipment in DICOM or other formats are often compressed in bit-depth and/or matrix size, and are commonly processed for presentation. Such processing often degrades the utility of the images for an evaluation of sy

24、stem aspects of detector performance, image spatial resolution, contrast sensitivity, noise content, artifacts, and uniformity. Original data are intended to perform: a) Relative quantitative QC tests for evaluation of detector performance and focal spot. b) Some tests on objects using automatic sof

25、tware analysis tools that require original data. The availability of original data should not interfere with the intended use of the equipment. consequently, access to original data should be controlled by restriction to a quality control user that is logged on and authorized to use that system or b

26、y locating specific functionality under a dedicated quality control mode, if the equipment provides such a mode. A.2 Electronic Documentation of Image Processing Parameters The objective is to create an output file in a compatible format (e.g. EXCEL compatible) documenting the image processing param

27、eters sets. This electronic documentation is to include all parameters that may directly influence image quality, such as: contrast (gradation), brightness (density), sharpness (frequency), etc. Manufacturers provide a suggested or starting set of image processing parameters. Radiology departments o

28、ptimize their image processing parameters when a new digital system is installed, and regularly thereafter to maintain quality assurance (ICRP 93, 2004). It is the responsibility of the responsible organization to assure that these modifications are clinically justified. Flagging the differences bet

29、ween e.g., the factory default and the local Image processing parameters simplifies the review and clinical audit processes for which the user is responsible. This will be adequately supported by an electronic documentation of the image processing parameters. There is no prior assumption regarding t

30、he safety and effectiveness of any local requirements or preferences relative to the corresponding factory default image processing parameter values. NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION 1300 NORTH 17TH STREET, SUITE 900 ROSSLYN. VA 22209www.NEMA.orgTO ORDER ADDITIONAL NEMA STANDARDS VISITWWW.GLOBAL.IHS.COM OR CALL 1-800-854-7179/1-303-397-79565612_0514TB

copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
备案/许可证编号:苏ICP备17064731号-1