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Korean J Radiol. 2015 Sep-Oct;16(5):1038-46. doi: 10.3348/kjr.2015.16.5.1038. Epub 2015 Aug 21.

T2-Weighted Liver MRI Using the MultiVane Technique at 3T: Comparison with Conventional T2-Weighted MRI.

Author information

1
Department of Radiology, Myongji Hospital, Seonam University College of Medicine, Goyang 10475, Korea.
2
Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea.
3
Philips Healthcare Korea, Philips, Seoul 04342, Korea.
4
Biostatistics and Clinical Epidemiology Center, Samsung Medical Center, Seoul 06351, Korea.

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.

KEYWORDS:

3T MRI; Magnetic resonance imaging; MultiVane; T2-weighted imaging

PMID:
26357498
PMCID:
PMC4559775
DOI:
10.3348/kjr.2015.16.5.1038
[Indexed for MEDLINE]
Free PMC Article

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