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https://www.readbyqxmd.com/read/28902795/magnetic-resonance-imaging-of-neuroendocrine-tumor-hepatic-metastases-does-hepatobiliary-phase-imaging-improve-lesion-conspicuity-and-interobserver-agreement-of-lesion-measurements
#1
Brian Morse, Daniel Jeong, Kerry Thomas, Dalanda Diallo, Jonathan R Strosberg
OBJECTIVE: The aim of this study was to determine if magnetic resonance imaging (MRI) performed with hepatobiliary phase imaging results in higher lesion conspicuity and produces lesion measurements with higher interobserver agreement than other MRI sequences when imaging neuroendocrine hepatic metastases. METHODS: Patients who had MRIs with both gadoxetate disodium and gadopentetate dimeglumine contrast within a 6-month span were identified, and 23 hepatic lesions were selected...
October 2017: Pancreas
https://www.readbyqxmd.com/read/28902723/evaluation-of-transient-motion-during-gadoxetic-acid-enhanced-multiphasic-liver-magnetic-resonance-imaging-using-free-breathing-golden-angle-radial-sparse-parallel-magnetic-resonance-imaging
#2
Jeong Hee Yoon, Jeong Min Lee, Mi Hye Yu, Bo Yun Hur, Robert Grimm, Kai Tobias Block, Hersh Chandarana, Berthold Kiefer, Yohan Son
OBJECTIVES: The aims of this study were to observe the pattern of transient motion after gadoxetic acid administration including incidence, onset, and duration, and to evaluate the clinical feasibility of free-breathing gadoxetic acid-enhanced liver magnetic resonance imaging using golden-angle radial sparse parallel (GRASP) imaging with respiratory gating. MATERIALS AND METHODS: In this institutional review board-approved prospective study, 59 patients who provided informed consents were analyzed...
September 11, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28901685/diagnostic-performance-of-ct-gadoxetate-disodium-enhanced-mri-and-pet-ct-for-the-diagnosis-of-colorectal-liver-metastasis-systematic-review-and-meta-analysis
#3
Sang Hyun Choi, So Yeon Kim, Seong Ho Park, Kyung Won Kim, Ja Youn Lee, Seung Soo Lee, Moon-Gyu Lee
BACKGROUND: Imaging studies, including computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET), have an essential role in the detection and localization of colorectal liver metastasis (CRLM). PURPOSE: To systematically determine the diagnostic accuracy of multidetector row CT (MDCT), gadoxetate disodium-enhanced MRI, and PET/CT for diagnosing CRLM and the sources of heterogeneity between the reported results. STUDY TYPE: Systematic review and meta-analysis...
September 13, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28895045/influence-of-gd-eob-dtpa-on-proton-density-fat-fraction-using-the-six-echo-dixon-method-in-3-tesla-magnetic-resonance-imaging
#4
Tatsuya Hayashi, Kei Fukuzawa, Hiroshi Kondo, Hiroshi Onodera, Shuji Toyotaka, Rie Tojo, Shimpei Yano, Masakatsu Tano, Tosiaki Miyati, Jun'ichi Kotoku, Takahide Okamoto, Keiko Toyoda, Hiroshi Oba
The purpose of this study was to evaluate whether disodium gadoxetate (Gd-EOB-DTPA) affects proton density fat fractions (PDFFs) during use of the multiecho Dixon (meDixon) method in phantom and simulation magnetic resonance imaging (MRI) studies at 3 T. Fat-water phantoms comprising vegetable fat-water emulsions with varying fat volume percentages (0, 5, 10, 15, 20, 30, 40, and 50) and Gd-EOB-DTPA concentrations (0 and 0.4 mM) were prepared. Phantoms without Gd-EOB-DTPA were defined as precontrast, and those with Gd-EOB-DTPA were defined as postcontrast...
September 11, 2017: Radiological Physics and Technology
https://www.readbyqxmd.com/read/28894937/gadoxetate-disodium-induced-tachypnoea-and-the-effect-of-dilution-method-a-proof-of-concept-study-in-mice
#5
Hiroyuki Akai, Koichiro Yasaka, Masanori Nojima, Akira Kunimatsu, Yusuke Inoue, Osamu Abe, Kuni Ohtomo, Shigeru Kiryu
OBJECTIVES: To directly investigate the rapid respiratory effect of gadoxetate disodium in an experimental study using mice. METHODS: After confirming the steady respiratory state under general anaesthesia, eight mice were injected with all test agents in the following order: phosphate-buffered saline (A, control group), 1.25 mmol/kg of gadoteridol (B) or gadopentetate dimeglumine (C), or 0.31 mmol/kg of gadoxetate disodium (D, E). The experimenter was not blinded to the agents...
September 11, 2017: European Radiology
https://www.readbyqxmd.com/read/28886231/gadoxetic-acid-enhanced-mri-outperformed-mdct-in-diagnosing-small-hepatocellular-carcinoma-a-meta-analysis
#6
Xijiao Liu, Hanyu Jiang, Jie Chen, You Zhou, Zixing Huang, Bin Song
Early detection of small hepatocellular carcinoma (HCC) lesions can improve long-term patient survival. A systematic review and meta-analysis of the diagnostic performance of gadoxetic acid disodium-enhanced magnetic resonance imaging (Gd-EOB-DTPA-enhanced MRI) and multidetector computed tomography (MDCT) was performed in diagnosing small HCCs measuring up to 2 cm(≤2cm). Two investigators searched multiple databases for studies in which the performances of either Gd-EOB-DTPA-enhanced MRI or MDCT were reported with sufficient data to construct 2 × 2 contingency tables for diagnosing HCCs up to 2 cm on a per-lesion or per-patient level...
September 8, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28879422/differentiating-primary-hepatic-angiosarcomas-from-hemangiomatosis-and-epithelioid-hemangioendotheliomas-using-gadoxetic-acid-enhanced-and-diffusion-weighted-mr-imaging
#7
Jung Wook Seo, Seong Hyun Kim, Ah Yeong Kim, Woo Kyoung Jeong, Ji Young Woo, Won Jeong Park
OBJECTIVES: To assess the value of gadoxetic acid-enhanced and diffusion-weighted (DW) magnetic resonance (MR) imaging for differentiating primary hepatic angiosarcomas from hemangiomatosis and epithelioid hemangioendotheliomas (EHEs). METHODS: We reviewed MR images of seven patients with pathologically determined hepatic angiosarcomas, 11 patients with hemangiomatosis, and five patients with EHEs. Two radiologists assessed morphologic features, signal intensity (SI), enhancement patterns, and the presence of diffusion restriction by consensus and compared between angiosarcoma vs hemangiomatosis and angiosarcoma vs EHEs...
September 6, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28859233/imaging-for-the-diagnosis-of-hepatocellular-carcinoma-a-systematic-review-and-meta-analysis
#8
REVIEW
Lewis R Roberts, Claude B Sirlin, Feras Zaiem, Jehad Almasri, Larry J Prokop, Julie Heimbach, M Hassan Murad, Khaled Mohammed
Multiphasic computed tomography (CT) and magnetic resonance imaging (MRI) are both used for non-invasive diagnosis of hepatocellular carcinoma (HCC) in patients with cirrhosis. To determine if there is a relative diagnostic benefit of one over the other, we synthesized evidence regarding the relative performances of CT, extracellular-contrast-enhanced-MRI, and gadoxetate-enhanced-MRI for diagnosis of HCC in patients with cirrhosis. We also assessed whether liver biopsy versus follow-up with the same versus alternative imaging is best for CT- or MRI-indeterminate liver nodules in patients with cirrhosis...
August 31, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28816953/peritumoral-decreased-uptake-area-of-gadoxetic-acid-enhanced-magnetic-resonance-imaging-and-tumor-recurrence-after-surgical-resection-in-hepatocellular-carcinoma-a-strobe-compliant-article
#9
Seung Kak Shin, Yun Soo Kim, Young Sup Shim, Seung Joon Choi, So Hyun Park, Dong Hae Jung, Oh Sang Kwon, Duck Joo Choi, Ju Hyun Kim
Recently, it has been suggested that peritumoral decreased uptake area (PDUA) in the hepatobiliary phase (HBP) of gadoxetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance imaging (MRI) was associated with vascular invasion in hepatocellular carcinoma (HCC). We aimed to investigate correlations between microvascular invasion and PDUA, and elucidate the predictability of PDUA for tumor recurrence after resection.We retrospectively analyzed clinicopathological and radiological data from 126 consecutive patients with single HCC ≤5 cm without macrovascular invasion who underwent preoperative Gd-EOB-DTPA-enhanced MRI and surgical resection...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28806321/liver-imaging-reporting-and-data-system-discordance-between-computed-tomography-and-gadoxetate-enhanced-magnetic-resonance-imaging-for-detection-of-hepatocellular-carcinoma-major-features
#10
Victoria Chernyak, Milana Flusberg, Amy Law, Mariya Kobi, Viktoriya Paroder, Alla M Rozenblit
PURPOSE: The goal of this study was to compare agreement between computed tomography (CT) and magnetic resonance imaging (MRI) in the evaluation of the major Liver Imaging Reporting and Data System (LI-RADS) features used in assessment of hepatocellular carcinoma: arterial phase hyperenhancement (APHE), portal venous phase washout (WO), capsule appearance (capsule), and largest diameter (diameter). METHODS: Patients with liver protocol CT and gadoxetate-enhanced MRI within 1 month of each other and at least 1 discrete untreated liver lesion were included...
August 12, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28798287/non-hypervascular-hypointense-nodules-on-hepatocyte-phase-gadoxetic-acid-enhanced-mr-images-transformation-of-mr-hepatobiliary-hypointense-nodules-into-hypervascular-hepatocellular-carcinomas
#11
Yun Ku Cho, Ju Won Kim, Mi Young Kim, Hyeon Je Cho
Background/Aims: The annual risk of transformation of non-hypervascular magnetic resonance (MR) hepatobiliary phase imaging (HBPI) hypointense nodules into hypervascular hepatocellular carcinomas (HCCs) was evaluated. Methods: Cirrhotic patients with non-hypervascular HBPI hypointense nodules were retrospectively analyzed if they were diagnosed as HCC and MR followed up longer than 1 year during the period from January 2010 to October 2016 with regular intervals of 3 to 6 months...
August 14, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28796732/is-mri-of-the-liver-needed-during-routine-preoperative-workup-for-colorectal-cancer
#12
Sung Il Kang, Duck-Woo Kim, Jai Young Cho, Jihoon Park, Kyung Ho Lee, Il Tae Son, Heung-Kwon Oh, Sung-Bum Kang
BACKGROUND: The clinical efficacy of gadoxetic acid-enhanced liver MRI as a routine preoperative procedure for all patients with colorectal cancer remains unclear. OBJECTIVE: The purpose of this study was to evaluate the efficacy of preoperative gadoxetic acid-enhanced liver MRI for the diagnosis of liver metastasis in patients with colorectal cancer. DESIGN: This was a retrospective analysis from a prospective cohort database. SETTINGS: All of the patients were from a subspecialty practice at a tertiary referral hospital...
September 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/28761907/feasibility-and-reproducibility-of-liver-surface-nodularity-quantification-for-the-assessment-of-liver-cirrhosis-using-ct-and-mri
#13
Grace C Lo, Cecilia Besa, Michael J King, Martin Kang, Ashley Stueck, Swan Thung, Mathilde Wagner, Andrew D Smith, Bachir Taouli
PURPOSE: To assess intra-observer, inter-observer and inter-modality (CT vs. MRI) reproducibility of liver surface nodularity (LSN) scores measured with software used for detection of liver fibrosis. METHODS: This IRB-approved retrospective study included patients with both abdominal CT and MRI within 6 months of histopathologic sampling. Two independent observers used post-processing software to quantify LSN scores on axial non-contrast CT (NCT), axial contrast-enhanced CT (CECT), axial T2-weighted (T2W) HASTE, and axial and coronal post-gadoxetic acid T1-weighted (T1W) images obtained during the hepatobiliary phase (HBP)...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28760631/prospective-comparison-of-gadoxetic-acid-enhanced-liver-mri-and-contrast-enhanced-ct-with-histopathological-correlation-for-preoperative-detection-of-colorectal-liver-metastases-following-chemotherapy-and-potential-impact-on-surgical-plan
#14
Kartik S Jhaveri, Sandra E Fischer, Hooman Hosseini-Nik, Boraiah Sreeharsha, Ravi J Menezes, Steven Gallinger, Carol-Anne E Moulton
OBJECTIVE: To prospectively compare the diagnostic performance of gadoxetic acid-enhanced MRI (EOB-MRI) and contrast-enhanced CT (CECT) for preoperative detection of colorectal liver metastases (CRLM) following chemotherapy and to evaluate the potential change in the hepatic resection plan. METHODS: 51 patients with CRLM treated with preoperative chemotherapy underwent liver imaging by EOB-MRI and CECT prospectively. Two independent blinded readers characterized hepatic lesions on each imaging modality using a 5-point scoring system...
July 28, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/28760004/hepatocellular-carcinoma-with-central-scar-on-gadoxetic-acid-enhanced-and-diffusion-weighted-magnetic-resonance-imaging
#15
Sol Bee Han, Young Kon Kim, Ji Hye Min, Sang Yun Ha, Woo Kyung Jeong, Won Jae Lee
Background Central scars are rarely reported in conventional hepatocellular carcinoma (HCC). The presence of central scars on imaging might lead to erroneous diagnosis of hepatic tumors. Purpose To determine imaging features of HCC with central scars on magnetic resonance imaging (MRI) including gadoxetic acid-enhanced and diffusion-weighted imaging (DWI). Material and Methods Fifty-one patients with 51 surgically confirmed HCCs with central scars (fibrotic scar: n = 50; myxoid scar: n = 1; range = 1...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28755071/erratum-to-hepatocellular-carcinoma-detection-diagnostic-performance-of-a-simulated-abbreviated-mri-protocol-combining-diffusion-weighted-and-t1-weighted-imaging-at-the-delayed-phase-post-gadoxetic-acid
#16
Cecilia Besa, Sara Lewis, Pari V Pandharipande, Jagpreet Chhatwal, Amita Kamath, Nancy Cooper, Ashley Knight-Greenfield, James S Babb, Paolo Boffetta, Norma Padron, Claude B Sirlin, Bachir Taouli
No abstract text is available yet for this article.
July 28, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28746206/association-between-relative-liver-enhancement-on-gadoxetic-acid-enhanced-magnetic-resonance-images-and-histologic-grade-of-hepatocellular-carcinoma
#17
Young-Joo Jin, Soon Gu Cho, Kun Young Lee, Joon Mee Kim, Jin Woo Lee
We evaluated the association between histologic grade of hepatocellular carcinoma (HCC) and degree of HCC enhancement on Gd-EOB-DTPA (Gadoxetic acid, Primovist)-enhanced magnetic resonance images (MRI) in HCC patients.A total of 121 patients who underwent curative surgical resection for HCC at our institution between January 2012 and March 2015 were retrospectively analyzed. Gadoxetic acid enhanced MRI was performed in all patients before surgery. Signal intensities of HCC and peri-HCC areas were measured using regions of interest...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28742376/hypervascular-transformation-of-hypovascular-hypointense-nodules-in-the-hepatobiliary-phase-of-gadoxetic-acid-enhanced-mri-a-systematic-review-and-meta-analysis
#18
Chong Hyun Suh, Kyung Won Kim, Junhee Pyo, Jayoun Lee, So Yeon Kim, Seong Ho Park
OBJECTIVE: The purpose of this study is to evaluate the outcomes of hypovascular hypointense nodules in the hepatobiliary phase of gadoxetic acid-enhanced MRI and the risk factors for the hypervascular transformation of the nodules through a systematic review and meta-analysis. MATERIALS AND METHODS: We searched the Ovid-MEDLINE and EMBASE databases for published studies of hypovascular hypointense nodules in patients with chronic liver disease. The pooled proportions of the overall and cumulative incidence rates at 1, 2, and 3 years for the transformation of hypovascular hypointense nodules into hypervascular hepatocellular carcinomas (HCCs) were assessed by using random-effects modeling...
July 25, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28731815/reply-to-biliopancreatic-reflux-shown-on-gadoxetic-acid-enhanced-mri
#19
COMMENT
Reiji Sugita, Kei Ito, Yutaka Noda
No abstract text is available yet for this article.
August 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28731814/biliopancreatic-reflux-shown-on-gadoxetic-acid-enhanced-mri
#20
COMMENT
Ali Devrim Karaosmanoglu, Musturay Karcaaltincaba
No abstract text is available yet for this article.
August 2017: AJR. American Journal of Roentgenology
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