Comparison of in Vivo, in Vitro 3T MR Spectroscopy and Proton NMR Spectroscopy for the Fluid from Cystic Tumor: Preliminary Study
Journal of the Korean Society of Magnetic Resonance in Medicine
;
: 107-114, 2008.
Article
Dans Coréen
| WPRIM
| ID: wpr-34147
ABSTRACT
PURPOSE:
The aim of this study is to determine possibility of application of in vivo proton (1H) magnetic resonance spectroscopy (MRS) in distinguishing cystic mass arising around pancreas by comparison of in vivo MRS, in vitro MRS using 3T MR machine, based on nuclear magnetic resonance (NMR). MATERIALS ANDMETHODS:
We obtained spectra of in vivo MRS, in vitro MRS and NMR from abdominal mass arising around pancreas (mucinous cystic neoplasm=5, intraductal papillary mucin producing tumor=5, pseudocyst=1, and lymphangioma=1). We estimated existence of peak of in vivo MRS, and in vitro MRS concordant to that of NMR. We also evaluated differential peak for predicting specific disease.RESULTS:
Correlation of presence of peak with NMR showed showed sensitivity of 29.6%, specificity of 82.6% and accuracy of 67.7% on in vivo MRS (p = 0.096, McNemar test), sensitivity of 57.1% and specificity of 92.6% and accuracy of 82.3% on in vitro MRS (p = 0.362, McNemar test). The spectra of NMR for IPMT showed more frequent peaks at 3.5-4.0 ppm (p=0.026).CONCLUSION:
Although chemical analysis, using NMR could be regarded as possible tool to differentiate cystic masses, in vivo and in vitro MRS need further technical evolution for clinical application.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Pancréas
/
Protons
/
Analyse spectrale
/
Spectroscopie par résonance magnétique
/
Sensibilité et spécificité
/
Mucines
Type d'étude:
Etude diagnostique
langue:
Coréen
Texte intégral:
Journal of the Korean Society of Magnetic Resonance in Medicine
Année:
2008
Type:
Article
Documents relatifs à ce sujet
MEDLINE
...
LILACS
LIS