| Evaluation of peripheral pulmonary arteries at 80 kV and at 140 kV: dual-energy computed tomography assessment in 51 patients. | |
| | |
MedLine Citation:
|
PMID: 19940672 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
PURPOSE: To compare peripheral pulmonary artery image quality at 80 kVp and 140 kVp in the same patients. MATERIALS AND METHODS: Image quality of third-, fourth- and fifth-order arteries was assessed at 80 kV and 140 kV on 1-mm-thick transverse scans, generated from dual-source computed tomography (CT) acquisitions. RESULTS: The mean level of enhancement was significantly higher at 80 kV compared with 140 kV for the third-, fourth-, and fifth-order arteries (P < 0.0001). Despite a higher noise level at 80 kV (P < 0.0001), the signal-to-noise ratio and contrast-to-noise ratio were significantly higher at 80 kV than at 140 kV at the level of third-, fourth-, and fifth-order arteries (P < 0.0001). The mean vascular attenuation, mean signal-to-noise ratio and contrast-to-noise ratio for peripheral arteries were significantly superior at 80 kV in the 3 body mass index categories (P < 0.005). CONCLUSIONS: Eighty-kilovolt protocols significantly improve the image quality of peripheral pulmonary arteries on CT angiograms of the chest. |
| | |
Authors:
|
Andrei Gorgos; Martine Remy-Jardin; Alain Duhamel; Jean-Baptiste Faivre; Nunzia Tacelli; Val??rie Delannoy; Jacques Remy |
Publication Detail:
|
Type: Comparative Study; Journal Article |
Journal Detail:
|
Title: Journal of computer assisted tomography Volume: 33 ISSN: 1532-3145 ISO Abbreviation: J Comput Assist Tomogr Publication Date: 2009 Nov-Dec |
Date Detail:
|
Created Date: 2009-11-26 Completed Date: 2010-01-07 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 7703942 Medline TA: J Comput Assist Tomogr Country: United States |
Other Details:
|
Languages: eng Pagination: 981-6 Citation Subset: IM |
Affiliation:
|
Department of Thoracic Imaging, Hospital Calmette, Lille, France. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Aged Aged, 80 and over Body Mass Index Female Humans Male Middle Aged Pulmonary Artery / radiography* Radiographic Image Interpretation, Computer-Assisted Retrospective Studies Statistics, Nonparametric Tomography, X-Ray Computed / methods* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Prototype of foot-controlled image-scrolling device for the picture archiving and communication syst...
Next Document: Radiation dose to the thyroid gland and breast from multidetector computed tomography of the cervica...