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https://www.readbyqxmd.com/read/28445909/transient-severe-motion-artifact-related-to-gadoxetate-disodium-enhanced-liver-mri-frequency-and-risk-evaluation-at-a-german-institution
#1
Lennart Well, Vanessa Hanna Rausch, Gerhard Adam, Frank Oliver Henes, Peter Bannas
Purpose Varying frequencies (5 - 18 %) of contrast-related transient severe motion (TSM) imaging artifacts during gadoxetate disodium-enhanced arterial phase liver MRI have been reported. Since previous reports originated from the United States and Japan, we aimed to determine the frequency of TSM at a German institution and to correlate it with potential risk factors and previously published results. Materials and Methods Two age- and sex-matched groups were retrospectively selected (gadoxetate disodium n = 89; gadobenate dimeglumine n = 89) from dynamic contrast-enhanced MRI examinations in a single center...
April 26, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28441159/application-of-high-speed-t1-sequences-for-high-quality-hepatic-arterial-phase-magnetic-resonance-imaging-intraindividual-comparison-of-single-and-multiple-arterial-phases
#2
Yang Shin Park, Chang Hee Lee, Jeong Woo Kim, Young-Sun Lee, MunYoung Paek, Kyeong Ah Kim
PURPOSE: The aim of this study was to compare intraindividual single and multiple arterial phase acquisitions and evaluate which acquisition method was more advantageous for obtaining high-quality hepatic arterial phase in gadoxetic acid-enhanced liver magnetic resonance imaging (MRI). MATERIALS AND METHODS: Sixty-seven patients who underwent gadoxetic acid-enhanced liver MRIs and had all 3 kinds of acquisitions (single, dual, and triple arterial phases) were retrospectively included...
April 24, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28439650/gadoxetic-acid-disodium-enhanced-mr-imaging-of-cholangiolocellular-carcinoma-of-the-liver-imaging-characteristics-and-histopathological-correlations
#3
Hiroki Haradome, Toshiyuki Unno, Hiroyuki Morisaka, Yusuke Toda, Thomas C Kwee, Hiroshi Kondo, Keiji Sano, Tomoaki Ichikawa, Fukuo Kondo, Masahiko Sugitani, Tadatoshi Takayama
OBJECTIVES: To review the gadoxetic acid disodium (EOB)-enhanced magnetic resonance (MR) imaging features of cholangiolocellular carcinoma (CoCC) of the liver and compare them with those of hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (ICC). METHODS: EOB-enhanced MR images of 19 patients with CoCC, 23 with ICC, and 51 with HCC were retrospectively evaluated qualitatively and quantitatively. Univariate and multivariate analyses were performed to determine the characteristic MR features of CoCC with histopathological-imaging correlation...
April 24, 2017: European Radiology
https://www.readbyqxmd.com/read/28433483/functional-image-guided-stereotactic-body-radiation-therapy-planning-for-patients-with-hepatocellular-carcinoma
#4
Uranchimeg Tsegmed, Tomoki Kimura, Takeo Nakashima, Yuko Nakamura, Toru Higaki, Nobuki Imano, Yoshiko Doi, Masahiro Kenjo, Shuichi Ozawa, Yuji Murakami, Kazuo Awai, Yasushi Nagata
The aim of the current planning study is to evaluate the ability of gadoxetate disodium-enhanced magnetic resonance imaging (EOB-MRI)-guided stereotactic body radiation therapy (SBRT) planning by using intensity-modulated radiation therapy (IMRT) techniques in sparing the functional liver tissues during SBRT for hepatocellular carcinoma. In this study, 20 patients with hepatocellular carcinoma were enrolled. Functional liver tissues were defined according to quantitative liver-spleen contrast ratios ≥ 1...
April 19, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28409358/added-value-of-gadoxetic-acid-enhanced-t1-weighted-magnetic-resonance-cholangiography-for-the-diagnosis-of-post-transplant-biliary-complications
#5
Sonja Kinner, Tilman B Schubert, Adnan Said, Joshua D Mezrich, Scott B Reeder
OBJECTIVES: Biliary complications after liver transplantation (LT) are common. This study aimed to ascertain the value of gadoxetic acid-enhanced T1-weighted (T1w) magnetic resonance cholangiography (MRC) to evaluate anastomotic strictures (AS), non-anastomotic strictures (NAS) and biliary casts (BC). METHODS: Sixty liver-transplanted patients with suspicion of biliary complications and T2w-MRCP and T1w-MRC followed by endoscopic retrograde cholangiopancreatography (ERCP) or percutaneous transhepatic cholangiography (PTC) were analysed...
April 13, 2017: European Radiology
https://www.readbyqxmd.com/read/28398710/additional-values-of-high-resolution-gadoxetic-acid-enhanced-mr-cholangiography-for-evaluating-the-biliary-anatomy-of-living-liver-donors-comparison-with-t2-weighted-mr-cholangiography-and-conventional-gadoxetic-acid-enhanced-mr-cholangiography
#6
Hyo-Jin Kang, Jeong Min Lee, Jeong Hee Yoon, Ijin Joo, Won Chang, Kyung-Suk Suh, Kwang-Woong Lee, Nam-Joon Yi, Joon Koo Han
PURPOSE: To determine the incremental value of small field of view (sFOV) high-resolution (HR) gadoxetic acid-enhanced 3D T1 -weighted (W) magnetic resonance cholangiography (MRC) for evaluating the biliary anatomy of potential living donors by comparing it to T2 W-MRC. MATERIALS AND METHODS: In all, 73 living donor candidates underwent gadoxetic acid-enhanced MRI (3.0T) including three kinds of MRCs: 3D multislice T2 W-MRC, regular FOV (rFOV) (380 × 380mm, resolution 1...
April 11, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28396919/transient-severe-motion-in-the-arterial-phase-during-gadoxetate-disodium-enhanced-mr-imaging-evaluation-of-patients-with-multiple-mr-examinations
#7
Won Hyeong Im, Ji Soo Song, Eun Hae Park, Hyo Sung Kwak
PURPOSE: To determine whether patients undergoing multiple gadoxetate disodium-enhanced magnetic resonance (MR) examinations who experienced transient severe motion (TSM) in the arterial phase were affected by the TSM noted in the first examination. MATERIALS AND METHODS: 214 patients who underwent three or more repeated gadoxetate disodium-enhanced MR imaging were retrospectively analyzed. Three radiologists scored all of the examinations demonstrating a motion artifact using a five-point rating scale...
April 10, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28386720/subcentimeter-hypervascular-nodules-with-typical-imaging-findings-of-hepatocellular-carcinoma-on-gadoxetic-acid-enhanced-mri-outcomes-of-early-treatment-and-watchful-waiting
#8
Jung Han Woo, Kyoung Doo Song, Seong Hyun Kim
OBJECTIVES: To compare treatment outcomes of subcentimeter hypervascular nodules at high risk for developing into hepatocellular carcinomas (SHNHR) between early treatment and watchful waiting until progression to overt hepatocellular carcinoma (HCC) groups. METHODS: SHNHRs were defined as subcentimeter hypervascular nodules with the usual imaging features of HCC on gadoxetic acid-enhanced magnetic resonance imaging (MRI). Among 63 patients with 74 SHNHRs, 27 (37 SHNHRs) received early treatment (treatment of < 1 cm nodules), and 36 (37 SHNHRs) underwent watchful waiting until progression to overt HCC...
April 6, 2017: European Radiology
https://www.readbyqxmd.com/read/28374073/liver-imaging-reporting-and-data-system-on-ct-and-gadoxetic-acid-enhanced-mri-with-diffusion-weighted-imaging
#9
Dong Ik Cha, Kyung Mi Jang, Seong Hyun Kim, Tae Wook Kang, Kyoung Doo Song
OBJECTIVES: To assess major imaging features of Liver Imaging Reporting and Data System (LI-RADS) on contrast-enhanced CT and gadoxetic acid-enhanced MRI and to estimate whether the combination of signal intensity favouring HCC on hepatobiliary phase (HBP) and diffusion-weighted images (DWI) can act as a major feature in LI-RADS. METHODS: Four hundred twenty one patients with 445 observations were included. Major features of LI-RADS on CT and MRI as well as HBP and DWI features were assessed...
April 3, 2017: European Radiology
https://www.readbyqxmd.com/read/28372493/safety-profile-of-gadoxetate-disodium-in-elderly-patients-%C3%A2-65-years
#10
Jan Endrikat, Carsten Schwenke, Kai Vogtlaender, Susan Dohannish, Josy Breuer
Background Safety data on routine clinical use of gadoxetate disodium in elderly patients is not reported yet. Purpose To assess the safety of liver specific gadoxetate disodium in contrast enhanced magnetic resonance imaging in elderly patients (≥65 years) in comparison to adults (18-64 years). Material and Methods Safety data on gadoxetate disodium were analyzed from 12 clinical phase II-III studies and from our pharmacovigilance database. A comparison between elderly (≥65 years) versus adults (18-64 years) was performed with respect to the frequency of drug-related adverse events (AEs) in clinical phase II-III studies and adverse drug reactions (ADRs) in the pharmacovigilance database...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28368880/critical-questions-regarding-gadolinium-deposition-in-the-brain-and-body-after-injections-of-the-gadolinium-based-contrast-agents-safety-and-clinical-recommendations-in-consideration-of-the-ema-s-pharmacovigilance-and-risk-assessment-committee-recommendation
#11
Val M Runge
For magnetic resonance, the established class of intravenous contrast media is the gadolinium-based contrast agents. In the 3 decades since initial approval, these have proven in general to be very safe for human administration. However, in 2006, a devastating late adverse reaction to administration of the less stable gadolinium-based contrast agents was identified, nephrogenic systemic fibrosis. The result of actions taken by the European Medicines Agency and the US Food and Drug Administration, stratifying the agents by risk and contraindicating specific agents in severe renal dysfunction, has led to no new cases being identified in North America or Europe...
April 1, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28363694/cost-effectiveness-of-eob-mri-for-hepatocellular-carcinoma-in-japan
#12
Akihiro Nishie, Satoshi Goshima, Hiroki Haradome, Etsuro Hatano, Yasuharu Imai, Masatoshi Kudo, Masanori Matsuda, Utaroh Motosugi, Satoshi Saitoh, Kengo Yoshimitsu, Bruce Crawford, Eliza Kruger, Graeme Ball, Hiroshi Honda
PURPOSE: The objective of the study was to evaluate the cost-effectiveness of gadoxetic acid-enhanced magnetic resonance imaging (EOB-MRI) in the diagnosis and treatment of hepatocellular carcinoma (HCC) in Japan compared with extracellular contrast media-enhanced MRI (ECCM-MRI) and contrast media-enhanced computed tomography (CE-CT) scanning. METHODS: A 6-stage Markov model was developed to estimate lifetime direct costs and clinical outcomes associated with EOB-MRI...
March 28, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28357495/signal-intensity-change-on-unenhanced-t1-weighted-images-in-dentate-nucleus-and-globus-pallidus-after-multiple-administrations-of-gadoxetate-disodium-an-intraindividual-comparative-study
#13
Giorgio Conte, Lorenzo Preda, Emilia Cocorocchio, Sara Raimondi, Caterina Giannitto, Marta Minotti, Francesca De Piano, Giuseppe Petralia, Pier Francesco Ferrucci, Massimo Bellomi
PURPOSE: To investigate whether there is an increased signal intensity (SI) of dentate nucleus (DN) and globus pallidus (GP) on unenhanced T1-weighted magnetic resonance imaging (MRI), in patients who had undergone multiple administrations of gadoxetate disodium. MATERIALS AND METHODS: We retrospectevely included stage III melanoma patients, who had been previously enrolled in a trial of adjuvant therapy and who had undergone whole-body contrast-enhanced MRIs with gadoxetate disodium every three months for their follow-up...
March 29, 2017: European Radiology
https://www.readbyqxmd.com/read/28349225/hepatobiliary-phase-mri-impact-on-planning-image-guided-liver-tumor-ablations
#14
Paul B Shyn, Ailbhe C O'Neill, Walter F Wiggins, Nisha I Sainani, Servet Tatli, Kemal Tuncali, Vincent M Levesque, Stuart G Silverman
PURPOSE: To assess the impact of hepatobiliary phase images obtained during intravenous gadoxetate disodium-enhanced liver MRI in the planning of image-guided liver tumor ablations. METHODS: This institutional review board-approved retrospective study included 34 patients (21 men, 13 women, ages 25-80) who underwent 36 liver MRI examinations with gadoxetate disodium within 12 weeks prior to image-guided thermal ablation of 62 liver tumors during 36 procedures. Visibility of bile ducts, subdivided by branch order, on hepatobiliary phase images was compared to standard MRI sequence images by an attending abdominal radiologist and fellow...
March 27, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28348578/contrast-enhanced-magnetic-resonance-cholangiography-practical-tips-and-clinical-indications-for-biliary-disease-management
#15
REVIEW
Stefano Palmucci, Federica Roccasalva, Marina Piccoli, Giovanni Fuccio Sanzà, Pietro Valerio Foti, Alfonso Ragozzino, Pietro Milone, Giovanni Carlo Ettorre
Since its introduction, MRCP has been improved over the years due to the introduction of several technical advances and innovations. It consists of a noninvasive method for biliary tree representation, based on heavily T2-weighted images. Conventionally, its protocol includes two-dimensional single-shot fast spin-echo images, acquired with thin sections or with multiple thick slabs. In recent years, three-dimensional T2-weighted fast-recovery fast spin-echo images have been added to the conventional protocol, increasing the possibility of biliary anatomy demonstration and leading to a significant benefit over conventional 2D imaging...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/28342102/the-value-of-gadoxetic-acid-enhanced-mri-for-differentiation-between-hepatic-microabscesses-and-metastases-in-patients-with-periampullary-cancer
#16
Seo-Youn Choi, Young Kon Kim, Ji Hye Min, Dong Ik Cha, Woo Kyoung Jeong, Won Jae Lee
OBJECTIVES: We aimed to identify features that differentiate hepatic microabscess from hepatic metastasis on gadoxetic acid-enhanced MRI in patients with periampullary cancer. METHODS: We included 72 patients (31 patients with 83 hepatic microabscesses and 41 patients with 71 hepatic metastases) who had a history of periampullary cancer and underwent gadoxetic acid-enhanced MRI. Image analysis was performed for margin, signal intensity, rim enhancement, perilesional hyperaemia, pattern on DWI and dynamic phases, and size discrepancy between sequences by consensus of two observers...
March 24, 2017: European Radiology
https://www.readbyqxmd.com/read/28333540/current-state-of-the-art-mri-for-comprehensive-evaluation-of-potential-living-liver-donors
#17
Kartik S Jhaveri, Lijun Guo, Luís Guimarães
OBJECTIVE: This review focuses on the role of state-of-the-art MRI-based techniques for comprehensive evaluation of living donors providing single-visit assessment of the liver vasculature via MR angiography, of the biliary tract via conventional T2-weighted MR cholangiography and T1-weighted gadoxetate disodium-enhanced MR cholangiography, and of hepatic steatosis via T2*-corrected multiecho chemical shift-based water-fat separation MRI and high-speed T2-corrected multiecho MR spectroscopy...
March 23, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28292007/magnetic-resonance-imaging-for-colorectal-cancer-metastasis-to-the-liver-comparative-effectiveness-research-for-the-choice-of-contrast-agents
#18
Nieun Seo, Mi-Suk Park, Kyunghwa Han, Kyung Ho Lee, Seong Ho Park, Gi Hong Choi, Jin-Young Choi, Yong Eun Chung, Myeong-Jin Kim
Purpose: This study was conducted to compare the diagnostic performance and early recurrence rate between gadoxetic acid-enhanced magnetic resonance imaging (Gd-EOB-MRI) and MRI with extracellular contrast agent (ECA-MRI) for evaluating hepatic lesions in colorectal cancer. Materials and Methods: Between 2005 and 2010, 418 colorectal cancer patients with both preoperative computed tomography (CT) and liver MRI were retrospectively reviewed. Image analysis was based on initial radiologic reports, and diagnostic performance was assessed based on the area under the receiver operating characteristic curve (AUROC)...
March 14, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28289936/comparison-of-spin-echo-echoplanar-imaging-and-gradient-recalled-echo-based-mr-elastography-at-3-tesla-with-and-without-gadoxetic-acid-administration
#19
Yong Seek Kim, Ji Soo Song, Stephan Kannengiesser, Seung Young Seo
OBJECTIVE: To compare spin-echo echoplanar imaging (SE-EPI) and gradient recalled echo (GRE) MR elastography (MRE) at 3 T with and without gadoxetic acid administration. METHODS: We included 84 patients who underwent MRE before and after gadoxetic acid administration, each time using SE-EPI and GRE sequences. Diagnostic performance for predicting clinical liver cirrhosis and high-risk oesophageal varices was assessed using the area under the receiver-operating characteristic curve (AUC)...
March 13, 2017: European Radiology
https://www.readbyqxmd.com/read/28274510/can-contrast-enhanced-mri-with-gadoxetic-acid-predict-liver-failure-and-other-complications-after-major-hepatic-resection
#20
A F Costa, A Tremblay St-Germain, M Abdolell, R L Smoot, S Cleary, K S Jhaveri
AIM: To determine whether a combination of clinical factors, the future liver remnant (FLR) ratio, and hepatic uptake of gadoxetic acid can be used to predict post-hepatectomy liver failure (PHLF) and other major complications (OMC). MATERIALS AND METHODS: Sixty-five consecutive patients who underwent pre-hepatectomy gadoxetic acid-enhanced magnetic resonance imaging (MRI) between October 2010 and December 2013 were included. The relative liver enhancement (RLE) of gadoxetic acid was calculated from regions of interest on MRI, and FLR ratios were obtained from computed tomography (CT)...
March 5, 2017: Clinical Radiology
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