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Other Information Resources Related to Whole-Body CT Screening
This page contains a listing of links and other references that provide additional information related to computed tomography and the use of it for screening. Topics are listed under the following headings:
Readers are cautioned that many of these links are to sources of information external to the FDA web site and present information that has not been verified or endorsed by the FDA. Provision of such a link or information should not be considered an endorsement by the FDA or the Department of Health and Human Services of the information on these pages.
New England Journal of Medicine (NEJM) Article, November 29, 2007
A Dictionary of Cancer Terms from the National Cancer Institute.
Information from the National Cancer Institute on Testing for Cancer.
A list of abbreviations related to CT from a web site specializing in
A public information web site sponsored by the Radiological Society of
North America and the American College of Radiology describing computed
tomography of the body.
A general discussion of the diagnostic uses of CT, why it is used, how
it works and what to expect during an examination.
A list of links to CT web sites.
Link to an introductory discussion of fundamental information regarding
radiation and its effects.
Article from the FDA Consumer magazine (Nov.-Dec. 2001) describing
whole-body CT scanning.
A recent opinion article in a leading radiology journal that raises concerns
about the use of radiologic screening procedures in general.
Article from the June 2001 issue of the American Journal of Roentgenology entitled "Ten Criteria for Effective Screening: Their Application to Multislice CT Screening for Pulmonary and Colorectal Cancer". This article describes ten criteria for an effective screening program in terms of the characteristics of the disease, the characteristics of the screening test and the treatments available if disease is found. http://www.ajronline.org/cgi/content/full/176/6/1357
An article describing the pros and cons of screening individuals without
symptoms using CT.
An article from the American Medical Association's American Medical
News (Sept. 3, 2001) discussing "Full-body scans: Buying peace
Web site operated by the National Cancer Institute that provides general
information on cancer and related issues.
The following section of the above web site provides a Cancer Screening
There are a number of studies that have been conducted or are underway
to evaluate the effectiveness or benefit of the use of CT in screening
for specific disease conditions in specific high-risk populations. Among
these are studies of CT to screen for coronary artery disease, colon cancer,
and lung cancer. Examples of these studies are the following that are
being sponsored by the American College of Radiology Imaging Network:
Contemporary Screening for the Detection of Lung Cancer Pre-Malignancy
Computerized Tomographic Colonography: Performance Evaluation in a Multicenter
Setting (Closed 10/17/00).
The National Council on Radiation Protection and Measurements (NCRP) is a nonprofit organization chartered by Congress that makes recommendations regarding protection against radiation. Several recent reports from the NCRP (http://www.ncrp.com) are relevant to the question of the risk from medical x-ray procedures.
The most recent evaluation of the effects of ionizing radiation by the National Academy of Sciences is given in the following publication:
The most recent report from the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) is contained in the following two volumes available from UNSCEAR.
The most recent statement of the U. S. Government about estimating the risk from ionizing radiation is given in the following publication:
The following links describe recent results on the risk from ionizing radiation from the evaluation of data from the study of atomic bomb survivors from the Radiation Effects Research Foundation (RERF).
Information on typical radiation effective doses from diagnostic procedures.
Information on a recent publication from the European Coordination Committee
of the Radiological and Electromedical Industries (COCIR) describing radiation
exposure in computed tomography.
CT dose information from the ImPACT Group in the United Kingdom sponsored
by the Medical Devices Agency.
Discussion of dosimetry concepts used in computed tomography from a European
Commission publication "EUROPEAN GUIDELINES ON QUALITY CRITERIA FOR
Preliminary data from FDA's Nationwide Evaluation of X-Ray Trends
(NEXT) 2000-01 Survey of Patient Radiation Exposure from Computed Tomographic
(CT) Examinations in the United States.
Public Health Notification: Reducing Radiation Risk from Computed Tomography for Pediatric and Small Adult Patients
Food, Drug, and Cosmetic Act
Performance standard for diagnostic x-ray systems
Medical Device regulations
Premarket Notification 510(k) guidance document
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