T2-Weighted Liver MRI Using the MultiVane Technique at 3T: Comparison with Conventional T2-Weighted MRI.
10.3348/kjr.2015.16.5.1038
- Author:
Kyung A KANG
1
;
Young Kon KIM
;
Eunju KIM
;
Woo Kyoung JEONG
;
Dongil CHOI
;
Won Jae LEE
;
Sin Ho JUNG
;
Sun Young BAEK
Author Information
1. Department of Radiology, Myongji Hospital, Seonam University College of Medicine, Goyang 10475, Korea.
- Publication Type:Original Article ; Comparative Study
- Keywords:
Magnetic resonance imaging;
3T MRI;
MultiVane;
T2-weighted imaging
- MeSH:
Adult;
Aged;
Aged, 80 and over;
Artifacts;
Biliary Tract Diseases/diagnosis/radiography;
Female;
Humans;
Liver Diseases/*diagnosis/radiography;
Liver Neoplasms/*diagnosis/pathology/radiography;
*Magnetic Resonance Imaging;
Male;
Middle Aged;
Pancreatic Diseases/diagnosis/radiography;
Retrospective Studies
- From:Korean Journal of Radiology
2015;16(5):1038-1046
- CountryRepublic of Korea
- Language:English
-
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 AND METHODS: 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.
