Navigator flip angle optimization for free-breathing T1-weighted hepatobiliary phase imaging with gadoxetic acid

2013 ◽  
Vol 40 (5) ◽  
pp. 1129-1136 ◽  
Author(s):  
Jens-P. Kühn ◽  
James H. Holmes ◽  
Anja C.S. Brau ◽  
Yuji Iwadate ◽  
Diego Hernando ◽  
...  
Keyword(s):  
Free Breathing ◽  
Flip Angle ◽  
Gadoxetic Acid ◽  
Hepatobiliary Phase ◽  
Phase Imaging

scholarly journals Validation of 10-Minute Delayed Hepatocyte Phase Imaging with 30° Flip Angle in Gadoxetic Acid-Enhanced MRI for the Detection of Liver Metastasis

PLoS ONE ◽  
2015 ◽  
Vol 10 (10) ◽  
pp. e0139863 ◽  
Author(s):  
Dahye Lee ◽  
Eun-Suk Cho ◽  
Dae Jung Kim ◽  
Joo Hee Kim ◽  
Jeong-Sik Yu ◽  
...  
Keyword(s):  
Liver Metastasis ◽  
Flip Angle ◽  
Gadoxetic Acid ◽  
Phase Imaging ◽  
Enhanced Mri

Optimization of the Flip Angle and Scan Timing in Hepatobiliary Phase Imaging Using T1-Weighted, CAIPIRINHA GRE Imaging

2018 ◽  
Vol 22 (1) ◽  
pp. 1
Author(s):  
Jeongjae Kim ◽  
Bong Soo Kim ◽  
Jeong Sub Lee ◽  
Seung Tae Woo ◽  
Guk Myung Choi ◽  
...  
Keyword(s):  
Flip Angle ◽  
Hepatobiliary Phase ◽  
Phase Imaging

Radial MRI during free breathing in contrast-enhanced hepatobiliary phase imaging

2014 ◽  
Vol 55 (1) ◽  
pp. 3-7 ◽  
Author(s):  
Tatsuya Gomi ◽  
Masahashi Nagamoto ◽  
Makoto Hasegawa ◽  
Akiko Tabata ◽  
Mikiko Iwasaki ◽  
...  
Keyword(s):  
Free Breathing ◽  
Hepatobiliary Phase ◽  
Phase Imaging ◽  
Contrast Enhanced ◽  
Radial Mri

Detecting hepatocellular carcinoma in gadoxetic-acid-enhanced hepatobiliary-phase MR imaging at 3T: comparing high and low flip angle

2013 ◽  
Vol 31 (12) ◽  
pp. 803-811 ◽  
Author(s):  
Mina Song ◽  
Hyeon Je Cho ◽  
Yun Ku Cho ◽  
Mi Young Kim ◽  
Sang Ik Noh ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Mr Imaging ◽  
Flip Angle ◽  
Gadoxetic Acid ◽  
Hepatobiliary Phase

scholarly journals MRI Features for Predicting Microvascular Invasion of Hepatocellular Carcinoma: A Systematic Review and Meta-Analysis

Liver Cancer ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 94-106
Author(s):  
Seung Baek Hong ◽  
Sang Hyun Choi ◽  
So Yeon Kim ◽  
Ju Hyun Shim ◽  
Seung Soo Lee ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Tumor Size ◽  
Meta Analysis ◽  
Diagnostic Odds Ratio ◽  
Microvascular Invasion ◽  
Hepatobiliary Phase ◽  
Phase Imaging ◽  
Arterial Enhancement ◽  
Mri Features ◽  
Peritumoral Enhancement

<b><i>Purpose:</i></b> Microvascular invasion (MVI) is an important prognostic factor in patients with hepatocellular carcinoma (HCC). However, the reported results of magnetic resonance imaging (MRI) features for predicting MVI of HCC are variable and conflicting. Therefore, this meta-analysis aimed to identify the significant MRI features for MVI of HCC and to determine their diagnostic value. <b><i>Methods:</i></b> Original studies reporting the diagnostic performance of MRI for predicting MVI of HCC were identified in MEDLINE and EMBASE up until January 15, 2020. Study quality was assessed using QUADAS-2. A bivariate random-effects model was used to calculate the meta-analytic pooled diagnostic odds ratio (DOR) and 95% confidence interval (CI) for each MRI feature for diagnosing MVI in HCC. The meta-analytic pooled sensitivity and specificity were calculated for the significant MRI features. <b><i>Results:</i></b> Among 235 screened articles, we found 36 studies including 4,274 HCCs. Of the 15 available MRI features, 7 were significantly associated with MVI: larger tumor size (&#x3e;5 cm) (DOR = 5.2, 95% CI [3.0–9.0]), rim arterial enhancement (4.2, 95% CI [1.7–10.6]), arterial peritumoral enhancement (4.4, 95% CI [2.8–6.9]), peritumoral hypointensity on hepatobiliary phase imaging (HBP) (8.2, 95% CI [4.4–15.2]), nonsmooth tumor margin (3.2, 95% CI [2.2–4.4]), multifocality (7.1, 95% CI [2.6–19.5]), and hypointensity on T1-weighted imaging (T1WI) (4.9, 95% CI [2.5–9.6]). Both peritumoral hypointensity on HBP and multifocality showed very high meta-analytic pooled specificities for diagnosing MVI (91.1% [85.4–94.8%] and 93.3% [74.5–98.5%], respectively). <b><i>Conclusions:</i></b> Seven MRI features including larger tumor size, rim arterial enhancement, arterial peritumoral enhancement, peritumoral hypointensity on HBP, nonsmooth margin, multifocality, and hypointensity on T1WI were significant predictors for MVI of HCC. These MRI features predictive of MVI can be useful in the management of HCC.

Feasibility of semiautomated MR volumetry using gadoxetic acid-enhanced MRI at hepatobiliary phase for living liver donors

2013 ◽  
Vol 72 (3) ◽  
pp. 640-645 ◽  
Author(s):  
Jeongjin Lee ◽  
Kyoung Won Kim ◽  
So Yeon Kim ◽  
Bohyoung Kim ◽  
So Jung Lee ◽  
...  
Keyword(s):  
Gadoxetic Acid ◽  
Hepatobiliary Phase ◽  
Enhanced Mri ◽  
Living Liver Donors ◽  
Mr Volumetry ◽  
Liver Donors
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