| Musculoskeletal neoplasms: fast low-angle shot MR imaging with and without Gd-DTPA. | |
| | |
MedLine Citation:
|
PMID: 2367666 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
In 121 patients, image contrast and contrast-to-noise ratios (C/Ns) obtained with gadolinium diethylene-triaminepentaacetic acid (DTPA)-enhanced and nonenhanced fast low-angle shot (FLASH) sequences were compared with those achieved with spin-echo (SE) sequences. Among FLASH sequences, contrast between neoplasms and muscle was sufficient with a flip angle of 90 degrees following administration of Gd-DTPA but was 61% lower than that with the T2-weighted SE sequence. High contrast levels were obtained between tumors and bone marrow or fat in sclerotic, calcified, and fibrotic lesions with the use of a flip angle of 90 degrees and in lytic lesions with a flip angle of 10 degrees, reaching 66% of the contrast level obtained with the T1-weighted SE sequence. C/N between tumor and surrounding tissue was always significantly lower with FLASH sequences than with the ideal SE sequences usually used for tumor delineation. Thus, a replacement of the T2-weighted SE sequences by FLASH sequences cannot be recommended. A replacement of the T1-weighted SE sequences by FLASH sequences seems possible but does not significantly reduce examination time. |
| | |
Authors:
|
R Erlemann; P Vassallo; G Bongartz; H Müller-Miny; E Rummeny; U Stöber; P E Peters |
Related Documents
:
|
17629606 - Micrornas in drosophila: the magic wand to enter the chamber of secrets? 18851076 - Temporal spike pattern learning. 16436816 - Three-dimensional fast-recovery fast spin-echo mrcp: comparison with two-dimensional si... 2142206 - On the relation between metacontrast masking and suppression of visible persistence. 21893586 - Is the sequence-specific binding of aminoacyl-trnas by ef-tu universal among bacteria? 7688326 - Characterization of a tropomyosin cdna from the hydrozoan podocoryne carnea. |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Radiology Volume: 176 ISSN: 0033-8419 ISO Abbreviation: Radiology Publication Date: 1990 Aug |
Date Detail:
|
Created Date: 1990-08-16 Completed Date: 1990-08-16 Revised Date: 2004-11-17 |
Medline Journal Info:
|
Nlm Unique ID: 0401260 Medline TA: Radiology Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: 489-95 Citation Subset: AIM; IM |
Affiliation:
|
Department of Clinical Radiology, Westfälische Wilhelms-Universität, Münster, Federal Republic of Germany. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adolescent Adult Aged Aged, 80 and over Bone Neoplasms / diagnosis* Child Contrast Media Gadolinium DTPA Humans Magnetic Resonance Imaging* / methods Middle Aged Muscular Diseases / diagnosis* Organometallic Compounds / diagnostic use* Pentetic Acid / diagnostic use* Soft Tissue Neoplasms / diagnosis* |
| Chemical | |
Reg. No./Substance:
|
0/Contrast Media; 0/Organometallic Compounds; 67-43-6/Pentetic Acid; 80529-93-7/Gadolinium DTPA |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Peripheral meniscal tears: MR findings after conservative treatment or arthroscopic repair.
Next Document: Dorsal lunate tilt (DISI configuration): sign of scaphoid fracture displacement.