Document Detail


Dynamic contrast-enhanced MRI with subtraction of aggressive soft tissue tumors after resection.
MedLine Citation:
PMID:  9809880     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To report the application of dynamic contrast-enhanced subtraction MRI for detecting recurrences in aggressive or malignant soft tissue tumors. DESIGN: The imaging studies consisted of static (T1- and T2-weighted spin-echo) acquisitions, followed by dynamic conventional spin-echo short TR/TE images (at 45 s, 1 min 30 s and 5 min) after a bolus of intravenous contrast medium. Contrast images were subtracted from the precontrast scan on the console. PATIENTS: Ninety-eight patients were studied who had had aggressive or malignant soft tissue tumors treated by surgery, and were followed up to assess recurrences. RESULTS: Subtraction MRI characterized recurrences better than routine sequences in 10 patients (1 lesion was seen only with this technique, 6 were better delineated, and 3 inflammatory pseudotumors were identified), and less well in 4 cases. CONCLUSION: As the number of levels studied on dynamic images is limited, and all but one recurrence were detected on T2-weighted images, it remains logical to start the examination with T2-weighted spin-echo images, and to use the dynamic study only if contrast injection is required.
Authors:
D Vanel; L G Shapeero; A Tardivon; A Western; J M Guinebretière
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Skeletal radiology     Volume:  27     ISSN:  0364-2348     ISO Abbreviation:  Skeletal Radiol.     Publication Date:  1998 Sep 
Date Detail:
Created Date:  1999-01-27     Completed Date:  1999-01-27     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7701953     Medline TA:  Skeletal Radiol     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  505-10     Citation Subset:  IM    
Affiliation:
Centre Inter-Etablissement de Résonance Magnétique, Le Kremlin Bicêtre, France.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aged, 80 and over
Contrast Media
Female
Follow-Up Studies
Gadolinium DTPA / diagnostic use
Humans
Magnetic Resonance Imaging / methods*
Male
Middle Aged
Neoplasm Recurrence, Local
Soft Tissue Neoplasms / diagnosis*,  surgery
Subtraction Technique
Chemical
Reg. No./Substance:
0/Contrast Media; 122795-43-1/gadodiamide; 80529-93-7/Gadolinium DTPA

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


Previous Document:  Evaluation of articular cartilage thickness of the humeral head and the glenoid fossa by MR arthrogr...
Next Document:  Marrow MR signal abnormality associated with bilateral avulsive cortical irregularities in a gymnast...