文档介绍：W ORKING D OCUMENT ON CHEST X RAY EQUIPMENT FOR USE IN TB PREVALENCE SURVEYS Prepared by KNCV Tuberculosis Foundation September 2008 1 Foreword This document is a working document prepared to pro vide an overview of issues regarding chest X-ray equipment for use in T B prevalence surveys. The current information was collected by the resear ch unit of KNCV Tuberculosis Foundation with input from external ex perts. A group of countries is preparing to carry out a TB prevalence survey in ing years. When providing technical assistance for TB prevalen ce surveys we received questions from countries about chest X-ray equipmen t. Since there was no document with information available, we collected o ur own experience and experience form external experts. The information is intended to provide an overview to guide the choice of X- ray equipment for a TB prevalence survey. It assemb les information on the type of X-ray equipment used in previous surveys an d intends to give an overview of the type of X-ray machines available fo r use in TB prevalence surveys. It also lists some experiences that countr ies had during their surveys with different types of machines. It is a working d ocument and by no means a fixed document so it will be updated when additiona l information on other surveys es available. The provided information in the annex on the X- ray equipment available from panies is by no means meant to be an advice for a specific brand of equipment but is an overview of the information that is currently known to us. When mor e information is available from other companies with similar equipment this ca n be added to the document. Additional information can be send to KNC V Tuberculosis Foundation ( ******@ ). KNCV Tuberculosis Foundation 9 October 2008 2 FROM: A