|
KMID : 0880420020030020105
|
|
Korean Journal of Radiology
2002 Volume.3 No. 2 p.105 ~ p.112
|
|
|
In-vivo Proton Magnetic Resonance Spectroscopy in Adnexal Lesions
|
|
Chang Hae Suh/Soon Gu Cho
Hyung Jin Kim/Myung Kwan Lim/Chang Hae Suh/Seong Whi Cho/Jung Hee Lee/Jong Hwa Kim
|
|
|
Abstract
|
|
|
Objective: To explore the in-vivo 1H- MR spectral features of adnexal lesions and to characterize the spectral patterns of various pathologic entities.
Materials and Methods: Thirty-one patients with surgically and histopathologically confirmed adnexal lesions underwent short echo-time STEAM (stimulated echo acquisition method) 1H- MR spectroscopy, and the results obtained were analysed.
Results: The methylene present in fatty acid chains gave rise to a lipid peak of 1.3 ppm in the 1H- MR spectra of most malignant tumors and benign teratomas. This same peak was not observed, however, in the spectra of benign ovarian epithelial tumors: in a number of these, a peak of 5.2 ppm, due to the presence of the olefine group (-CH=CH-) was noted. The ratios of lipid peak at 1.3 ppm to water peak (lipid/water ratios) varied between disease groups, and in some benign teratomas was characteristically high.
Conclusion: An intense lipid peak at 1.3 ppm is observed in malignant ovarian tumors but not in benign epithelial tumors. 1H- MRS may therefore be helpful in the differential diagnosis of adnexal lesions.
|
|
|
KEYWORD
|
|
|
Magnetic resonance (MR), spectroscopy, Ovary, MR, Ovary, neoplasms,
|
|
|
FullTexts / Linksout information
|
|
 
|
|
|
Listed journal information
|
|
    
|