T2-Weighted Liver MRI Using the MultiVane Technique at 3T: Comparison with Conventional T2-Weighted MRI
Korean Journal of Radiology
;
: 1038-1046, 2015.
Article
Dans Anglais
| WPRIM
| ID: wpr-163299
ABSTRACT
OBJECTIVE:
To assess the value of applying MultiVane to liver T2-weighted imaging (T2WI) compared with conventional T2WIs with emphasis on detection of focal liver lesions. MATERIALS ANDMETHODS:
Seventy-eight patients (43 men and 35 women) with 86 hepatic lesions and 20 pancreatico-biliary diseases underwent MRI including T2WIs acquired using breath-hold (BH), respiratory-triggered (RT), and MultiVane technique at 3T. Two reviewers evaluated each T2WI with respect to artefacts, organ sharpness, and conspicuity of intrahepatic vessels, hilar duct, and main lesion using five-point scales, and made pairwise comparisons between T2WI sequences for these categories. Diagnostic accuracy (Az) and sensitivity for hepatic lesion detection were evaluated using alternative free-response receiver operating characteristic analysis.RESULTS:
MultiVane T2WI was significantly better than BH-T2WI or RT-T2WI for organ sharpness and conspicuity of intrahepatic vessels and main lesion in both separate reviews and pairwise comparisons (p < 0.001). With regard to motion artefacts, MultiVane T2WI or BH-T2WI was better than RT-T2WI (p < 0.001). Conspicuity of hilar duct was better with BH-T2WI than with MultiVane T2WI (p = 0.030) or RT-T2WI (p < 0.001). For detection of 86 hepatic lesions, sensitivity (mean, 97.7%) of MultiVane T2WI was significantly higher than that of BH-T2WI (mean, 89.5%) (p = 0.008) or RT-T2WI (mean, 84.9%) (p = 0.001).CONCLUSION:
Applying the MultiVane technique to T2WI of the liver is a promising approach to improving image quality that results in increased detection of focal liver lesions compared with conventional T2WI.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Maladies du pancréas
/
Maladie des voies biliaires
/
Imagerie par résonance magnétique
/
Études rétrospectives
/
Artéfacts
/
Maladies du foie
/
Tumeurs du foie
Type d'étude:
Étude observationnelle
Limites du sujet:
Adulte
/
Adulte très âgé
/
Aged80
/
Femelle
/
Humains
/
Mâle
langue:
Anglais
Texte intégral:
Korean Journal of Radiology
Année:
2015
Type:
Article
Documents relatifs à ce sujet
MEDLINE
...
LILACS
LIS