| Reduction of contrast material dose and artifacts by a saline flush using a double power injector in helical CT of the thorax. | |
| | |
MedLine Citation:
|
PMID: 10749248 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
OBJECTIVE: Our objective was to evaluate a combined method of contrast material bolus followed by saline solution flush for thoracic helical CT and statistical comparison with a uniphasic injection protocol. MATERIALS AND METHODS: Fifty patients underwent helical CT of the thorax using 60 ml of contrast material (370 mg I/ml) followed by flushing with 30 ml of physiologic saline solution. These 50 patients had been examined before using our previous protocol, 75 ml of the same contrast material without a subsequent saline solution. Mean attenuation values for both protocols were measured in the superior vena cava, the pulmonary trunk, and the ascending aorta. Image artifacts and mediastinal and hilar depiction were graded and compared. RESULTS: Mean attenuation values in the superior vena cava were considerably higher in the regimen without saline solution flush (459 H versus 352 H) and in the pulmonary trunk and the ascending aorta were almost identical for both protocols. Injection of saline solution diminished surrounding artifacts (p = 0.001). Grading results for the evaluation of mediastinal and hilar structures were not significantly different in the two protocols (p = 0.564). CONCLUSION: Injection of contrast material followed by a saline solution bolus using a double power injector when performing thoracic helical CT allows a 20% reduction of contrast material volume to 60 ml with a similar degree of enhancement. In addition, perivenous artifacts in the superior vena cava are significantly reduced. |
| | |
Authors:
|
P Haage; T Schmitz-Rode; D Hübner; W Piroth; R W Günther |
Related Documents
:
|
15271368 - Kidney transplantation: evaluation of donors and recipients. 10751468 - Four multidetector-row helical ct: image quality and volume coverage speed. 20631368 - Overranging at multisection ct: an underestimated source of excess radiation exposure. 11786608 - Emergence of modern human behavior: middle stone age engravings from south africa. 22036278 - Subluxation of the distal radioulnar joint as a predictor of foveal triangular fibrocar... 10362208 - The mitral regurgitation index: an echocardiographic guide to severity. |
Publication Detail:
|
Type: Clinical Trial; Comparative Study; Journal Article |
Journal Detail:
|
Title: AJR. American journal of roentgenology Volume: 174 ISSN: 0361-803X ISO Abbreviation: AJR Am J Roentgenol Publication Date: 2000 Apr |
Date Detail:
|
Created Date: 2000-04-28 Completed Date: 2000-04-28 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: 1049-53 Citation Subset: AIM; IM |
Affiliation:
|
Department of Diagnostic Radiology, University of Technology, Aachen, Germany. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Aged Artifacts* Contrast Media / administration & dosage* Female Humans Irrigation Male Middle Aged Radiography, Thoracic / methods* Sodium Chloride* Thoracic Neoplasms / surgery* Tomography, X-Ray Computed / methods* |
| Chemical | |
Reg. No./Substance:
|
0/Contrast Media; 7647-14-5/Sodium Chloride |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Pulmonary embolism revealed on helical CT angiography: comparison with ventilation-perfusion radionu...
Next Document: Fractal analysis of nuclear medicine images for the diagnosis of pulmonary emphysema: interpretation...