Document Detail


Multiple slice FLASH imaging: an improved pulse sequence for contrast enhanced MR brain studies.
MedLine Citation:
PMID:  2287374     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A multisclice gradient echo sequence (FLASH) was compared with a conventional spin-echo (SE) technique with regard to its value for contrast enhanced brain studies. In 50 patients with contrast enhancing intracranial lesions, MR studies (0.5 Tesla MR tomograph) were performed with SE images (SE 400/30; four images/3.4 min) and FLASH scans (FLASH 315/14, 90 degrees; 15 images/1.4 min) before and after Gd-DTPA. Based on visual and quantitative assessment diagnostic results of postcontrast SE- and FLASH images were equivalent with respect to contrast enhancement, lesion/brain-contrast, lesion/edema-contrast, and lesion delineation. Although image quality generally was excellent on postcontrast FLASH images, susceptibility artifacts were more severe on FLASH scans than on SE images. However, with the exception of postoperative patients with artifacts due to metal remains, diagnostic information was not decreased by artifacts on postcontrast FLASH images. In conclusion, because of the clearly higher efficiency of the multisclice FLASH technique, this pulse sequence offers the opportunity to speed up contrast enhanced brain imaging.
Authors:
W Schörner; B Sander; H Henkes; T Heim; W Lanksch; R Felix
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Neuroradiology     Volume:  32     ISSN:  0028-3940     ISO Abbreviation:  Neuroradiology     Publication Date:  1990  
Date Detail:
Created Date:  1991-03-26     Completed Date:  1991-03-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  1302751     Medline TA:  Neuroradiology     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  474-80     Citation Subset:  IM    
Affiliation:
Department of Radiology, Klinikum Rudolf Virchow, Free University of Berlin, Federal Republic of Germany.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Brain / pathology*
Brain Diseases / diagnosis
Brain Neoplasms / diagnosis*
Contrast Media
Female
Gadolinium / diagnostic use
Gadolinium DTPA
Humans
Magnetic Resonance Imaging / methods*
Male
Meningeal Neoplasms / diagnosis
Meningioma / diagnosis
Middle Aged
Organometallic Compounds / diagnostic use
Pentetic Acid / diagnostic use
Chemical
Reg. No./Substance:
0/Contrast Media; 0/Organometallic Compounds; 67-43-6/Pentetic Acid; 7440-54-2/Gadolinium; 80529-93-7/Gadolinium DTPA

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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