| Dose and pitch relationship for a particular multislice CT scanner. | |
| | |
MedLine Citation:
|
PMID: 11717063 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
OBJECTIVE: With single-slice helical CT, an increased pitch can decrease the radiation dose to the patient if all other parameters are constant. The purpose of this study was to determine whether the same relationship holds for a particular multislice helical CT system (Somatom Plus 4 VZ multislice helical CT scanner, version A11A) in our department. CONCLUSION: The measured radiation dose to the phantom was identical for all pitch selections on the multislice helical CT system we tested. This unexpected result was because of an automatic proportionate increase in the tube current when the pitch selection was increased. Radiologists and physicists should exercise caution when extrapolating dose reduction strategies from single-slice to multislice helical CT systems, and they must acquire a detailed understanding of the multislice helical CT scanner of their chosen manufacturer. |
| | |
Authors:
|
M Mahesh; J C Scatarige; J Cooper; E K Fishman |
Related Documents
:
|
12563123 - Ct evaluation of bone dehiscence of the superior semicircular canal as a cause of sound... 7771713 - Three-dimensional imaging of the hypopharynx and larynx by means of helical (spiral) co... 4070613 - Magnetic resonance imaging: the basic physical and clinical concepts. part iii. |
Publication Detail:
|
Type: Comparative Study; Journal Article |
Journal Detail:
|
Title: AJR. American journal of roentgenology Volume: 177 ISSN: 0361-803X ISO Abbreviation: AJR Am J Roentgenol Publication Date: 2001 Dec |
Date Detail:
|
Created Date: 2001-11-21 Completed Date: 2002-01-22 Revised Date: 2008-02-15 |
Medline Journal Info:
|
Nlm Unique ID: 7708173 Medline TA: AJR Am J Roentgenol Country: United States |
Other Details:
|
Languages: eng Pagination: 1273-5 Citation Subset: AIM; IM |
Affiliation:
|
The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N. Caroline St, Baltimore, MD 21287-0811, USA. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Equipment Design Radiation Dosage Tomography, X-Ray Computed / instrumentation*, methods* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Cost-effectiveness of immediate MR imaging versus traditional follow-up for revealing radiographical...
Next Document: Technology and archives in radiology research: a sampling analysis of articles published in the AJR ...