Efficacy of double arterial phase dynamic magnetic resonance imaging with the sensitivity encoding technique versus dynamic multidetector-row helical computed tomography for detecting hypervascular hepatocellular carcinoma |
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Authors: | Seishi Kumano Masahiko Uemura Toyoaki Haraikawa Masaaki Hirata Keiichi Kikuchi Tonsok Kim Masahiro Okada Teruhito Mochizuki Takamichi Murakami |
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Institution: | (1) Department of Radiology, Kinki University School of Medicine, 377-2 Ohno-Higashi, Osakasayama 589-8511, Japan;(2) Department of Radiology, Ehime University School of Medicine, Toon, Japan;(3) Department of Radiology, Osaka University Graduate School of Medicine, Suita, Japan |
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Abstract: | Purpose The aim of this study was to evaluate the efficacy of double arterial phase dynamic magnetic resonance imaging (MRI) with
the sensitivity encoding technique (SENSE dynamic MRI) for detection of hypervascular hepatocellular carcinoma (HCC) in comparison
with double arterial phase dynamic multidetector-row helical computed tomography (dynamic MDCT).
Materials and methods A total of 28 patients with 66 hypervascular HCCs underwent both double arterial SENSE dynamic MRI and dynamic MDCT. The diagnosis
of HCC was based on surgical resection (n = 7), biopsy (n = 10), or a combination of CT during arterial portography (CTAP), CT during hepatic arteriography (CTA), and/or the 6-month
follow-up CT (n = 49). Based on alternative-free response receiving operating characteristic (ROC) analysis, the diagnostic performance for
detecting HCC was compared between double arterial phase SENSE dynamic MRI and double arterial phase dynamic MDCT.
Results The mean sensitivity, positive predictive value, and mean Az values for hypervascular HCCs were 72%, 80%, and 0.79, respectively,
for SENSE dynamic MRI and 66%, 92%, and 0.78, respectively, for dynamic MDCT. The mean sensitivity for double arterial phase
SENSE dynamic MRI was higher than that for double arterial phase dynamic MDCT, but the difference was not statistically significant.
Conclusion Double arterial phase SENSE dynamic MRI is as valuable as double arterial phase dynamic MDCT for detecting hypervascular HCCs. |
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Keywords: | Double arterial phase SENSE dynamic MRI Dynamic MDCT Hepatocellular carcinoma |
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