A comparative study between arterial spin labeling and CT perfusion methods on hepatic portal venous flow

Purpose The purpose of this study was to evaluate the feasibility and potential usefulness of unenhanced magnetic resonance (MR) hepatic portal perfusion using arterial spin labeling (ASL) among healthy volunteers and hepatocellular carcinoma patients. Materials and methods The five healthy voluntee...

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Bibliographic Details
Published in:Japanese journal of radiology 2012-12, Vol.30 (10), p.863-869
Main Authors: Katada, Yoshiaki, Shukuya, Toshiro, Kawashima, Miho, Nozaki, Miwako, Imai, Hiroshi, Natori, Takeshi, Tamano, Masaya
Format: Article
Language:English
Subjects:
Adult
Aged
Aged, 80 and over
Carcinoma, Hepatocellular - diagnosis
Carcinoma, Hepatocellular - diagnostic imaging
Case-Control Studies
Feasibility Studies
Female
Humans
Imaging
Liver - blood supply
Liver - diagnostic imaging
Liver Neoplasms - diagnosis
Liver Neoplasms - diagnostic imaging
Magnetic Resonance Imaging
Male
Mathematical Computing
Medicine
Medicine & Public Health
Middle Aged
Nuclear Medicine
Perfusion Imaging - methods
Portal Vein - diagnostic imaging
Portography - methods
Predictive Value of Tests
Radiology
Radiotherapy
Reproducibility of Results
Sensitivity and Specificity
Spin Labels
Technical Note
Tomography, X-Ray Computed
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Summary:Purpose The purpose of this study was to evaluate the feasibility and potential usefulness of unenhanced magnetic resonance (MR) hepatic portal perfusion using arterial spin labeling (ASL) among healthy volunteers and hepatocellular carcinoma patients. Materials and methods The five healthy volunteers underwent unenhanced MR perfusion with inversion time 2 (TI2) values at 500-ms intervals between 2,000 and 4,000 ms, and the 12 patients underwent unenhanced MR perfusion using ASL and computed tomography (CT) perfusion during superior mesenteric artery (SMA) portography. The regions of interest were placed in both the right and left lobes of the liver or both the right anterior and posterior segments of the liver and were placed over the tumor if a lesion was located within a particular perfusion study slice. Results In the healthy volunteer study, perfusion rate in hepatic parenchyma showed a peak at the TI2 value of 3,000 ms (254.3 ml/min/100 g ± 58.3). In patients, a fair correlation was observed between CT and MR perfusion ( r  = 0.795, P  
ISSN:1867-1071
1867-108X
DOI:10.1007/s11604-012-0127-y