keyword
https://read.qxmd.com/read/38312348/from-strength-to-precision-a-systematic-review-exploring-the-clinical-utility-of-7-tesla-magnetic-resonance-imaging-in-abdominal-imaging
#21
JOURNAL ARTICLE
Arosh S Perera Molligoda Arachchige, Ana Claudia Teixeira de Castro Gonçalves Ortega, Federica Catapano, Letterio S Politi, Michael N Hoff
BACKGROUND: After approval for clinical use in 2017 early investigations of ultra-high-field abdominal magnetic resonance imaging (MRI) have demonstrated the feasibility as well as diagnostic capabilities of liver, kidney, and prostate MRI at 7-Tesla. However, the elevation of the field strength to 7-Tesla not only brought advantages to abdominal MRI but also presented considerable challenges and drawbacks, primarily stemming from heightened artifacts and limitations in Specific Absorption Rate, etc...
January 28, 2024: World Journal of Radiology
https://read.qxmd.com/read/38308061/machine-learning-based-radiomics-analysis-in-predicting-ras-mutational-status-using-magnetic-resonance-imaging
#22
JOURNAL ARTICLE
Vincenza Granata, Roberta Fusco, Maria Chiara Brunese, Annabella Di Mauro, Antonio Avallone, Alessandro Ottaiano, Francesco Izzo, Nicola Normanno, Antonella Petrillo
PURPOSE: To assess the efficacy of radiomics features, obtained by magnetic resonance imaging (MRI) with hepatospecific contrast agent, in pre-surgical setting, to predict RAS mutational status in liver metastases. METHODS: Patients with MRI in pre-surgical setting were enrolled in a retrospective study. Manual segmentation was made by means 3D Slicer image computing, and 851 radiomics features were extracted as median values using the PyRadiomics Python package...
February 2, 2024: La Radiologia Medica
https://read.qxmd.com/read/38304350/focal-coagulative-necrosis-of-the-liver-in-a-patient-with-sustained-virologic-response-to-anti-hepatitis-c-virus-therapy
#23
Akito Furuta, Shoji Oura, Hiroshi Shintani, Naoki Kataoka, Hiroto Tanaka, Seigo Takamatsu, Wataru Ono
A 69-year-old woman with chronic hepatitis C virus (HCV) infection was referred to our hospital due to liver enzyme abnormalities. Four years after anti-HCV therapy, the patient with sustained virologic response and no clinical symptoms developed an oval hepatic mass with mixed high and low internal echoes near the portal vein on ultrasound. Magnetic resonance imaging (MRI) of the liver lesion showed a slightly hypo intense pattern on T1-weighted images, a hyper intense pattern both on T2- and diffusion-weighted images, a slight rim enhancement pattern with no intra-lesional enhancement up to the late phase, and a very low intense pattern on hepatobiliary phase images...
April 2024: Radiology Case Reports
https://read.qxmd.com/read/38303342/-a-case-of-neuroendocrine-carcinoma-of-the-extrahepatic-bile-duct
#24
REVIEW
Chihiro Suzuki, Sho Sawazaki, Masato Nakazono, Yui Sueishi, Mitsutaka Murata, Shoma Tanaka, Kazuaki Minowa, Shota Izukawa, Aya Kato, Taiichi Kawabe, Akio Higuchi, Hiroshi Matsukawa, Yasushi Rino, Aya Saito, Hiroyuki Saeki
A 77-year-old man visited a clinic because of nausea and chest discomfort. On blood test, hepatobiliary enzymes were elevated, and he referred to our hospital. Contrast-enhanced CT revealed stenosis of the extrahepatic bile duct and brush cytology of the bile duct showed adenocarcinoma. We therefore performed pancreatoduodenectomy for extrahepatic bile duct cancer. Pathological diagnosis was small cell neuroendocrine carcinoma, pT3N2M0, Stage ⅢA. The patient did not receive adjuvant chemotherapy and 3 months later contrast-enhanced CT and MRI showed multiple liver metastases...
December 2023: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://read.qxmd.com/read/38300348/a-rare-case-of-liver-regenerative-and-non-neoplastic-lesion-resembling-a-well-differentiated-hepatocellular-carcinoma
#25
JOURNAL ARTICLE
Kosuke Hirose, Takeo Toshima, Taro Tobo, Satohiro Kai, Masakazu Hirakawa, Satoshi Higuchi, Takashi Ofuchi, Kiyotaka Hosoda, Yusuke Yonemura, Yuichi Hisamatsu, Takaaki Masuda, Shinichi Aishima, Koshi Mimori
BACKGROUND: Nodular regenerative hyperplasia (NRH) is a rare disease that presents pathologically as diffuse hepatic nodules without fibrous septa. It is believed to be caused by vasculopathy against a background of various systemic diseases, such as hematologic, autoimmune, and drug-induced diseases, with various symptoms. In spite of the recent imaging advances, various atypical cases of nodular lesions are observed in daily clinical practice. Cases that do not completely meet these criteria are referred to as -like or -similar lesions in clinical situations, making it difficult to understand their pathogenesis...
February 1, 2024: Surgical Case Reports
https://read.qxmd.com/read/38294541/gd-eob-dtpa-enhanced-mri-based-radiomics-combined-with-clinical-variables-in-stratifying-hepatic-functional-reserve-in-hbv-infected-patients
#26
JOURNAL ARTICLE
Jinghui Hu, Xiaoxiao Wang, Martin Prince, Fang Wang, Jun Sun, Xin Yang, Wenjian Wang, Jing Ye, Lei Chen, Xianfu Luo
PURPOSES: To evaluate radiomics from Gd-EOB-DTPA enhanced MR combined with clinical variables for stratifying hepatic functional reserve in hepatitis B virus (HBV) patients. METHODS: Our study included 279 chronic HBV patients divided 8:2 for training and test cohorts. Radiomics features were extracted from the hepatobiliary phase (HBP) MR images. Radiomics features were selected to construct a Rad-score which was combined with clinical parameters in two models differentiating hepatitis vs...
January 31, 2024: Abdominal Radiology
https://read.qxmd.com/read/38293328/effect-of-magnetic-resonance-imaging-in-liver-metastases
#27
JOURNAL ARTICLE
Xing-Liang Huang, Xiao-Dong Wang, Zhao-Miao Gong, Yan-Feng Zheng, Jing-Xin Mao
This letter to the editor is a commentary on a study titled "Liver metastases: The role of magnetic resonance imaging." Exploring a noninvasive imaging evaluation system for the biological behavior of hepatocellular carcinoma (HCC) is the key to achieving precise diagnosis and treatment and improving prognosis. This review summarizes the role of magnetic resonance imaging in the detection and evaluation of liver metastases, describes its main imaging features, and focuses on the added value of the latest imaging tools (such as T1 weighted in phase imaging, T1 weighted out of phase imaging; diffusion-weighted imaging, T2 weighted imaging)...
January 7, 2024: World Journal of Gastroenterology: WJG
https://read.qxmd.com/read/38291686/towards-a-standardized-classification-of-the-hepatobiliary-manifestations-in-cystic-fibrosis-cfhbi-a-joint-espghan-naspghan-position-paper
#28
JOURNAL ARTICLE
Frank A J A Bodewes, Alvin Jay Freeman, Alexander Weymann, Dominique Debray, Isabelle Scheers, Henkjan J Verkade, Michael R Narkewicz
The broad spectrum of hepatobiliary involvement in cystic fibrosis (CF) has been commonly referred to as cystic fibrosis liver disease (CFLD). However, differences in the definitions of CFLD have led to variations in reported prevalence, incidence rates, and standardized recommendations for diagnosis and therapies. Harmonizing the description of the spectrum of hepatobiliary involvement in all people with CF (pwCF) is deemed essential for providing a reliable account of the natural history, which in turn supports the development of meaningful clinical outcomes in patient care and research...
January 2024: Journal of Pediatric Gastroenterology and Nutrition
https://read.qxmd.com/read/38282160/assessing-regional-hepatic-function-changes-after-hypertrophy-induction-by-radioembolisation-comparison-of-gadoxetic-acid-enhanced-mri-and-99m-tc-mebrofenin-hepatobiliary-scintigraphy
#29
JOURNAL ARTICLE
Matthias P Fabritius, Benjamin Garlipp, Osman Öcal, Daniel Puhr-Westerheide, Holger Amthauer, Thomas Geyer, Adrien Holzgreve, Jens Ricke, Dennis Kupitz, Oliver S Grosser, Jazan Omari, Maciej Pech, Max Seidensticker, Freba Grawe, Ricarda Seidensticker
BACKGROUND: To compare Gd-ethoxybenzyl diethylenetriamine pentaacetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance imaging (MRI) and 99m Tc-labelled mebrofenin hepatobiliary scintigraphy (HBS) as imaging-based liver function tests after unilateral radioembolisation (RE) in patients with primary or secondary liver malignancies. METHODS: Twenty-three patients with primary or secondary liver malignancies who underwent Gd-EOB-DTPA-enhanced MRI within a prospective study (REVoluTion) were evaluated...
January 29, 2024: European Radiology Experimental
https://read.qxmd.com/read/38278311/non-contrast-t1%C3%AF-dispersion-versus-gd-eob-dtpa-enhanced-t1mapping-for-the-risk-stratification-of-non-alcoholic-fatty-liver-disease-in-rabbit-models
#30
JOURNAL ARTICLE
Ru Yang, Zhongshan Chen, Jin Pan, Shimin Yang, Fubi Hu
PURPOSE: To investigate the diagnostic efficacy of T1ρ dispersion and Gd-EOB-DTPAenhanced T1mapping in the identification of early liver fibrosis (LF) and non-alcoholic steatohepatitis (NASH) in a non-alcoholic fatty liver disease (NAFLD) rabbit model induced by a high-fat diet using histopathological findings as the standard reference. METHODS: A total of sixty rabbits were randomly allocated into the standard control group (n = 12) and the NAFLD model groups (8 rabbits per group) corresponding to different high-fat high cholesterol diet feeding weeks...
January 24, 2024: Magnetic Resonance Imaging
https://read.qxmd.com/read/38273242/a-gadoxetic-acid-enhanced-mri-based-model-using-li-rads-v2018-features-for-preoperatively-predicting-ki-67-expression-in-hepatocellular-carcinoma
#31
JOURNAL ARTICLE
Yingying Liang, Fan Xu, Qiuju Mou, Zihua Wang, Chuyin Xiao, Tingwen Zhou, Nianru Zhang, Jing Yang, Hongzhen Wu
PURPOSE: To construct a gadoxetic acid-enhanced MRI (EOB-MRI) -based multivariable model to predict Ki-67 expression levels in hepatocellular carcinoma (HCC) using LI-RADS v2018 imaging features. METHODS: A total of 121 patients with HCC who underwent EOB-MRI were enrolled in this study. The patients were divided into three groups according to Ki-67 cut-offs: Ki-67 ≥ 20% (n = 86) vs. Ki-67 < 20% (n = 35); Ki-67 ≥ 30% (n = 73) vs...
January 25, 2024: BMC Medical Imaging
https://read.qxmd.com/read/38270193/distinguishing-metabolic-signals-of-liver-tumors-from-surrounding-liver-cells-using-hyperpolarized-13-c-mri-and-gadoxetate
#32
JOURNAL ARTICLE
Shubhangi Agarwal, Jeremy Gordon, Robert A Bok, Cornelius von Morze, Daniel B Vigneron, John Kurhanewicz, Michael A Ohliger
PURPOSE: To use the hepatocyte-specific gadolinium-based contrast agent gadoxetate combined with hyperpolarized (HP) [1-13 C]pyruvate MRI to selectively suppress metabolic signals from normal hepatocytes while preserving the signals arising from tumors. METHODS: Simulations were performed to determine the expected changes in HP 13 C MR signal in liver and tumor under the influence of gadoxetate. CC531 colon cancer cells were implanted into the livers of five Wag/Rij rats...
January 25, 2024: Magnetic Resonance in Medicine
https://read.qxmd.com/read/38250460/liver-lesions-at-risk-of-transformation-into-hepatocellular-carcinoma-in-cirrhotic-patients-hepatobiliary-phase-hypointense-nodules-without-arterial-phase-hyperenhancement
#33
REVIEW
Nicolò Brandi, Matteo Renzulli
Recent technical advances in liver imaging and surveillance for patients at high risk for developing hepatocellular carcinoma (HCC) have led to an increase in the detection of borderline hepatic nodules in the gray area of multistep carcinogenesis, particularly in those that are hypointense at the hepatobiliary phase (HBP) and do not show arterial phase hyperenhancement. Given their potential to transform and advance into hypervascular HCC, these nodules have progressively attracted the interest of the scientific community...
January 28, 2024: Journal of Clinical and Translational Hepatology
https://read.qxmd.com/read/38248121/comparison-of-68-ga-dotatate-positron-emmited-tomography-computed-tomography-and-gadoxetic-acid-enhanced-magnetic-resonance-imaging-for-the-detection-of-liver-metastases-from-well-differentiated-neuroendocrine-tumors
#34
JOURNAL ARTICLE
Moran Drucker Iarovich, Ricarda Hinzpeter, Brian Michael Moloney, Katrina Hueniken, Patrick Veit-Haibach, Claudia Ortega, Ur Metser
This study aimed to compare the detection of neuroendocrine tumor liver metastases (NLMs) in hepatobiliary-specific contrast-enhanced MRI (pMR) versus 68 Ga-DOTATATE PET/CT (DT-PET). This retrospective study cohort included 30 patients with well-differentiated neuroendocrine tumors who underwent both DT-PET and pMR. Two readers independently assessed NLMs count, SUVmax on DT-PET, and signal characteristics on pMR. A consensus review by two additional readers resolved discrepancies between the modalities. Results showed concordance between DT-PET and pMR NLM count in 14/30 patients (47%)...
January 16, 2024: Current Oncology
https://read.qxmd.com/read/38248029/machine-learning-and-radiomics-analysis-for-tumor-budding-prediction-in-colorectal-liver-metastases-magnetic-resonance-imaging-assessment
#35
JOURNAL ARTICLE
Vincenza Granata, Roberta Fusco, Maria Chiara Brunese, Gerardo Ferrara, Fabiana Tatangelo, Alessandro Ottaiano, Antonio Avallone, Vittorio Miele, Nicola Normanno, Francesco Izzo, Antonella Petrillo
PURPOSE: We aimed to assess the efficacy of machine learning and radiomics analysis using magnetic resonance imaging (MRI) with a hepatospecific contrast agent, in a pre-surgical setting, to predict tumor budding in liver metastases. METHODS: Patients with MRI in a pre-surgical setting were retrospectively enrolled. Manual segmentation was made by means 3D Slicer image computing, and 851 radiomics features were extracted as median values using the PyRadiomics Python package...
January 9, 2024: Diagnostics
https://read.qxmd.com/read/38245474/liver-imaging-reporting-and-data-system-diagnostic-performance-in-hepatocellular-carcinoma-when-modifying-the-definition-of-washout-on-gadoxetic-acid-enhanced-magnetic-resonance-imaging
#36
JOURNAL ARTICLE
Weijuan Hu, Rong Lyu, Di Wang, Zhongsong Gao, Cheng Sun, Kefeng Jia
BACKGROUND AND STUDY AIMS: The sensitivity of the Liver Imaging Reporting and Data System (LI-RADS) in the diagnosis of hepatocellular carcinoma (HCC) on gadoxetic acid-enhanced magnetic resonance imaging (EOB-MRI) was suboptimal. This study evaluated the LI-RADS diagnostic performance in HCC when modifying the definition of washout using the transition phase (TP) or hepatobiliary phase (HBP) hypointensity on EOB-MRI. PATIENTS AND METHODS: This retrospective study included patients at high risk of HCC who underwent EOB-MRI from June 2016 to June 2021...
January 19, 2024: Arab Journal of Gastroenterology: the Official Publication of the Pan-Arab Association of Gastroenterology
https://read.qxmd.com/read/38238954/-analysis-of-mri-features-of-hepatocyte-nuclear-factor-1%C3%AE-inactivated-hepatocellular-adenoma
#37
JOURNAL ARTICLE
H Pan, X F Chen, J Han, Y Ji, M S Zeng, M L Wang
Objective: To investigate the MRI imaging features of hepatocyte nuclear factor 1α- inactivated hepatocellular adenoma (H-HCA). Methods: Clinical data and MRI images of 19 H-HCA cases who were pathologically confirmed at Zhongshan Hospital Affiliated to Fudan University between August 2014 and July 2020 were retrospectively analyzed. Among them, there were 15 females and 4 males, aged 16-47 (32± 7) years old. Tumor number, location, shape, size, boundary, MRI plain scan signal intensity, dynamic enhancement features of each phase, presence or absence of intratumoral fat content, pseudocapsule, and others were analyzed...
November 20, 2023: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://read.qxmd.com/read/38200213/diagnostic-performance-of-mri-for-residual-or-recurrent-hepatocellular-carcinoma-after-locoregional-treatment-according-to-contrast-agent-type-a-systematic-review-and-meta%C3%A2-analysis
#38
REVIEW
Shuwei Zhou, Siyu Wang, Jian Xiang, Zhongyu Han, Weilang Wang, Shuhang Zhang, Noble Chibuike Opara, Shenghong Ju, Ying Cui, Yuan-Cheng Wang
PURPOSE: The ideal contrast agent for imaging patients with hepatocellular carcinoma (HCC) following locoregional therapies (LRT) remains uncertain. We conducted a meta-analysis to assess the diagnostic performance of magnetic resonance imaging with extracellular contrast agent (ECA-MRI) and hepatobiliary agent (EOB-MRI) in detecting residual or recurrence HCC following LRT. METHODS: Original studies comparing the diagnostic performance of ECA-MRI and EOB-MRI were systematically identified through comprehensive searches in PubMed, EMBASE, Cochrane Library and Web of Science databases...
January 10, 2024: Abdominal Radiology
https://read.qxmd.com/read/38194844/to-assess-the-quantitative-features-of-focal-liver-lesions-in-gadoxetic-acid-enhanced-mri-and-to-determine-whether-these-features-can-accurately-differentiate-benign-form-malignant-lesions
#39
JOURNAL ARTICLE
Dorota N Rybczynska, Karolina E Markiet, Joanna M Pienkowska, Edyta Szurowska, Andrzej Frydrychowski
PURPOSE: The study aims at assessing the quantitative features which distinguish focal liver lesions (FLLs) in gadoxetic acid (GA) enhanced liver MRI and at determining whether these features can accurately differentiate benign from malignant lesions. MATERIAL AND METHODS: 107 patients with 180 unequivocal FLLs in previous examinations were included in a single-center retrospective study. All patients underwent a MRI test of the liver with GA. 99 benign and 74 malignant lesions were included...
January 6, 2024: European Journal of Radiology
https://read.qxmd.com/read/38184766/evaluation-and-prediction-of-post-hepatectomy-liver-failure-using-imaging-techniques-value-of-gadoxetic-acid-enhanced-magnetic-resonance-imaging
#40
REVIEW
Keitaro Sofue, Ryuji Shimada, Eisuke Ueshima, Shohei Komatsu, Takeru Yamaguchi, Shinji Yabe, Yoshiko Ueno, Masatoshi Hori, Takamichi Murakami
Despite improvements in operative techniques and perioperative care, post-hepatectomy liver failure (PHLF) remains the most serious cause of morbidity and mortality after surgery, and several risk factors have been identified to predict PHLF. Although volumetric assessment using imaging contributes to surgical simulation by estimating the function of future liver remnants in predicting PHLF, liver function is assumed to be homogeneous throughout the liver. The combination of volumetric and functional analyses may be more useful for an accurate evaluation of liver function and prediction of PHLF than only volumetric analysis...
January 2024: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
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