Predictive factors of truncation artifacts in the arterial phase of Gd-EOB-DTPA-enhanced MRI: a nationwide multicenter s
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ORIGINAL ARTICLE
Predictive factors of truncation artifacts in the arterial phase of Gd‑EOB‑DTPA‑enhanced MRI: a nationwide multicenter study Masakatsu Tsurusaki1 · Keitaro Sofue2 · Hiromitsu Onishi3 · Satoshi Goshima4 · Atsushi Higaki5 · Hiroyoshi Isoda6 · Hiroki Haradome7 · Kazunari Ishii1 · Takamichi Murakami2 Received: 16 February 2020 / Accepted: 7 September 2020 © Japan Radiological Society 2020
Abstract Purpose To identify predictive factors for truncation artifacts (TAs) in the arterial phase of Gd-EOB-DTPA-enhanced MRI in a multicenter study in Japan. Materials and methods Data on patient factors (age, sex, weight, presence of viral hepatitis, and other conditions) and imaging parameters (e.g., triggering, voxel size, matrix, k-space ordering, acquisition time, reduction factor, flip angle, fat suppression, field strength, injection rate, and saline volume) were obtained. Univariate and multivariate analyses were performed to investigate the correlation of these parameters. Results We evaluated 1444 patients from 43 institutions who were scanned using GE, Siemens, Philips, or Toshiba MRI equipment (501, 354, 349, and 240 patients, respectively). The total incidence of TAs was 12.5% (17.2, 3.6, 15.7, and 12.1%, respectively). The matrix [odds ratio (OR) 0.13], flip angle (OR 5.77), use of fat suppression (OR 0.106), and field strength (OR 0.092) used in the Philips equipment significantly increased the incidence of TAs in MRI examination. Conclusions The incidence of TAs in the arterial phase is influenced by several patient factors and imaging parameters. Especially, Siemens and Toshiba equipment had a significantly lower frequency of TAs. This indicates that such vendorspecific technology used in the dynamic sequence may have a TA-resistant effect. Keywords Magnetic resonance imaging · Truncation artifact · Gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid · Contrast agent Electronic supplementary material The online version of this article (https://doi.org/10.1007/s11604-020-01052-x) contains supplementary material, which is available to authorized users. * Masakatsu Tsurusaki [email protected]‑net.ne.jp 1
Department of Radiology, Faculty of Medicine, Kindai University, 377‑2, Ohnohigashi, Osaka‑sayama, Osaka 589‑8511, Japan
2
Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
3
Department of Radiology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
4
Department of Radiology, Gifu University Graduate School of Medicine, Gifu, Gifu, Japan
5
Department of Radiology, Kawasaki Medical School, Kurashiki, Okayama, Japan
6
Department of Radiology, Kyoto University Graduate School of Medicine, Kyoto, Kyoto, Japan
7
Department of Radiology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
Abbreviations CI Confidence interval Gd-EOB-DTPA Gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid HBV Hepatitis B virus HCV Hepatitis C virus OR Odds ratio TA Truncation artifact
Introduction Ga
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