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Watanabe Y, Ogawa M, Konishi A, Suda S, Tamura Y, Kaneko M, Hirayama M, Matsumoto N, Kogure H. Assessment of drainage vein of focal nodular hyperplasia using contrast-enhanced ultrasound. J Med Ultrason (2001) 2024:10.1007/s10396-024-01451-x. [PMID: 38609664 DOI: 10.1007/s10396-024-01451-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Accepted: 03/15/2024] [Indexed: 04/14/2024]
Abstract
PURPOSE Identification of drainage vessels is useful for differential diagnosis of hepatic tumors. Direct drainage to the hepatic vein has been reported to occur in focal nodular hyperplasia (FNH), but studies evaluating the drainage veins of FNH are limited. We aimed to investigate the detection rate of the FNH drainage vein and the factors related to visualization of the drainage vein on contrast-enhanced ultrasound (CEUS). METHODS Fifty consecutive patients with 50 FNH lesions were retrospectively evaluated in this study. We calculated and compared the detection rate of the FNH drainage vein on CEUS, contrast-enhanced magnetic resonance imaging (CEMRI), and contrast-enhanced computed tomography (CECT), and identified the factors correlated with visualization of the FNH drainage vein on CEUS by using multivariate logistic regression analyses. RESULTS Visualization of the drainage vein was confirmed in 31 of 50 lesions (62%) using CEUS, three of 44 lesions (6.8%) using CEMRI, and one of 18 lesions (5.6%) using CECT. The detection rate of the FNH drainage vein on CEUS was significantly higher than that on CEMRI and CECT (p < 0.001). Multivariate analysis identified lesion size (≥ 25 mm) and detection of the spoke-wheel pattern on Doppler US as independent factors for drainage vein detection in FNH. CONCLUSION Our study showed that rapid FNH drainage to the hepatic vein was observed at a relatively high rate on CEUS, suggesting that CEUS focusing on detection of drainage veins is important for diagnosing FNH.
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Affiliation(s)
- Yukinobu Watanabe
- Department of Gastroenterology and Hepatology, Nihon University School of Medicine, Tokyo, Japan.
| | - Masahiro Ogawa
- Department of Gastroenterology and Hepatology, Nihon University School of Medicine, Tokyo, Japan
| | - Aya Konishi
- Department of Gastroenterology and Hepatology, Nihon University School of Medicine, Tokyo, Japan
| | - Seiichiro Suda
- Department of Gastroenterology and Hepatology, Nihon University School of Medicine, Tokyo, Japan
| | - Yu Tamura
- Department of Gastroenterology and Hepatology, Nihon University School of Medicine, Tokyo, Japan
| | - Masahiro Kaneko
- Department of Gastroenterology and Hepatology, Nihon University School of Medicine, Tokyo, Japan
| | - Midori Hirayama
- Department of Gastroenterology and Hepatology, Nihon University School of Medicine, Tokyo, Japan
| | - Naoki Matsumoto
- Department of Gastroenterology and Hepatology, Nihon University School of Medicine, Tokyo, Japan
| | - Hirofumi Kogure
- Department of Gastroenterology and Hepatology, Nihon University School of Medicine, Tokyo, Japan
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Zhang Y, Li Q, Li L, Hong Y, Qiang B, Yu Y, Guo R, Deng H, Han X, Zou X, Guo Z, Zhou J. Diagnostic Performance of Modified Contrast-Enhanced Ultrasound Liver Imaging Reporting and Data System in Patients Without Risk Factors for Hepatocellular Carcinoma: Comparison With World Federation for Ultrasound in Medicine and Biology Guideline. ULTRASOUND IN MEDICINE & BIOLOGY 2024; 50:243-250. [PMID: 37985306 DOI: 10.1016/j.ultrasmedbio.2023.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/14/2023] [Accepted: 10/17/2023] [Indexed: 11/22/2023]
Abstract
OBJECTIVE The aim of this study was to assess the ability of the modified contrast-enhanced ultrasound (CEUS) Liver Imaging Reporting and Data System (LI-RADS) to distinguish malignancy in patients without known hepatocellular carcinoma (HCC) risk factors and compare diagnostic accuracy with that of the World Federation for Ultrasound in Medicine and Biology (WFUMB) guideline across radiologists with different levels of CEUS experience. METHODS A total of 848 individuals with no hepatitis infection presenting with 870 lesions in non-cirrhotic livers were included and divided into the Testing and Validation groups. The modified CEUS LI-RADS was proposed, including downgrading of focal nodular hyperplasia with typical features. Diagnostic performance of the modified CEUS LI-RADS was assessed in the Testing group. In the Validation group, two radiologists with more than 9 y of CEUS experience (Experts) and two radiologists with less than 6 mo of CEUS experience (Novices) used both the modified CEUS LI-RADS and the WFUMB guideline to evaluate performance in diagnosis of the lesions. RESULTS LR-5 + M (combination of modified LR-5 and modified LR-M) revealed optimal performance with a sensitivity, specificity and area under the curve (AUC) of 99.3%, 81.6% and 0.904, respectively. Novices using the modified CEUS LI-RADS outperformed those using the WFUMB guideline (AUC: 0.858 vs. 0.767, p = 0.005). Additionally, the sensitivity, specificity and AUC of Novices were comparable to those of Experts using the modified CEUS LI-RADS (94.1%, 77.6% and 0.858 vs. 96.1%, 77.6% and 0.868 for experts, respectively). CONCLUSION The modified CEUS LI-RADS is a valuable method for distinguishing hepatic malignancy in patients without HCC risk factors. This is particularly beneficial for radiologists with limited CEUS expertise.
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Affiliation(s)
- Yafang Zhang
- Department of Ultrasound, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Qing Li
- Department of Ultrasound, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Lingling Li
- Department of Ultrasound, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yong Hong
- Department of Ultrasound, Zhongshan Dongfeng People's Hospital, Zhongshan, China
| | - Banghong Qiang
- Department of Ultrasound Medicine, Wuhu Hospital, East China Normal University (The Second People's Hospital), Wuhu, China
| | - Yiwen Yu
- Department of Ultrasound, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Ruohan Guo
- Department of Ultrasound, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Hanxia Deng
- Department of Ultrasound, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xu Han
- Department of Ultrasound, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xuebin Zou
- Department of Ultrasound, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Zhixing Guo
- Department of Ultrasound, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Jianhua Zhou
- Department of Ultrasound, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China.
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Tsalikidis C, Mitsala A, Pappas-Gogos G, Romanidis K, Tsaroucha AK, Pitiakoudis M. Pedunculated Focal Nodular Hyperplasia: When in Doubt, Should We Cut It Out? J Clin Med 2023; 12:6034. [PMID: 37762973 PMCID: PMC10532121 DOI: 10.3390/jcm12186034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/10/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Focal nodular hyperplasia (FNH) is the second most common benign hepatic tumor and can rarely present as an exophytic solitary mass attached to the liver by a stalk. Most FNH cases are usually detected as incidental findings during surgery, imaging or physical examination and have a high female predominance. However, the pedunculated forms of FNH are particularly rare and commonly associated with severe complications and diagnostic challenges. Hence, our study aims to provide a comprehensive summary of the available data on the pedunculated FNH cases among adults and children. Furthermore, we will highlight the role of different therapeutic options in treating this clinical entity. The use of imaging techniques is considered a significant addition to the diagnostic toolbox. Regarding the optimal treatment strategy, the main indications for surgery were the presence of symptoms, diagnostic uncertainty and increased risk of complications, based on the current literature. Herein, we also propose a management algorithm for patients with suspected FNH lesions. Therefore, a high index of suspicion and awareness of this pathology and its life-threatening complications, as an uncommon etiology of acute abdomen, is of utmost importance in order to achieve better clinical outcomes.
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Affiliation(s)
- Christos Tsalikidis
- Second Department of Surgery, University General Hospital of Alexandroupolis, Democritus University of Thrace Medical School, 68100 Alexandroupolis, Greece; (C.T.); (A.M.); (G.P.-G.); (K.R.); (M.P.)
| | - Athanasia Mitsala
- Second Department of Surgery, University General Hospital of Alexandroupolis, Democritus University of Thrace Medical School, 68100 Alexandroupolis, Greece; (C.T.); (A.M.); (G.P.-G.); (K.R.); (M.P.)
| | - George Pappas-Gogos
- Second Department of Surgery, University General Hospital of Alexandroupolis, Democritus University of Thrace Medical School, 68100 Alexandroupolis, Greece; (C.T.); (A.M.); (G.P.-G.); (K.R.); (M.P.)
| | - Konstantinos Romanidis
- Second Department of Surgery, University General Hospital of Alexandroupolis, Democritus University of Thrace Medical School, 68100 Alexandroupolis, Greece; (C.T.); (A.M.); (G.P.-G.); (K.R.); (M.P.)
| | - Alexandra K. Tsaroucha
- Laboratory of Experimental Surgery & Surgical Research, Democritus University of Thrace Medical School, 68100 Alexandroupolis, Greece
| | - Michail Pitiakoudis
- Second Department of Surgery, University General Hospital of Alexandroupolis, Democritus University of Thrace Medical School, 68100 Alexandroupolis, Greece; (C.T.); (A.M.); (G.P.-G.); (K.R.); (M.P.)
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Wilson A, Lim A. Microvascular imaging: new Doppler technology for assessing focal liver lesions. Is it useful? Clin Radiol 2022; 77:e807-e820. [DOI: 10.1016/j.crad.2022.05.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 05/08/2022] [Accepted: 05/11/2022] [Indexed: 11/09/2022]
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Focal Benign Liver Lesions and Their Diagnostic Pitfalls. Radiol Clin North Am 2022; 60:755-773. [DOI: 10.1016/j.rcl.2022.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Jiang ZP, Zeng KY, Huang JY, Yang J, Yang R, Li JW, Qiu TT, Luo Y, Lu Q. Differentiating malignant and benign focal liver lesions in children using CEUS LI-RADS combined with serum alpha-fetoprotein. World J Gastroenterol 2022; 28:2350-2360. [PMID: 35800178 PMCID: PMC9185218 DOI: 10.3748/wjg.v28.i21.2350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 02/08/2022] [Accepted: 04/21/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Contrast-enhanced ultrasound (CEUS) can be used to diagnose focal liver lesions (FLLs) in children. The America College of Radiology developed the CEUS liver imaging reporting and data system (LI-RADS) for standardizing CEUS diagnosis of FLLs in adult patients. Until now, no similar consensus or guidelines have existed for pediatric patients to improve imaging interpretation as adults.
AIM To evaluate the performance of CEUS LI-RADS combined with alpha-fetoprotein (AFP) in differentiating benign and malignant FLLs in pediatric patients.
METHODS Between January 2011 and January 2021, patients ≤ 18 years old who underwent CEUS for FLLs were retrospectively evaluated. The following criteria for diagnosing malignancy were proposed: Criterion I considered LR-4, LR-5, or LR-M lesions as malignancies; criterion II regarded LR-4, LR-5 or LR-M lesions with simultaneously elevated AFP (≥ 20 ng/mL) as malignancies; criterion III took LR-4 Lesions with elevated AFP or LR-5 or LR-M lesions as malignancies. The sensitivity, specificity, accuracy and area under the receiver operating characteristic curve (AUC) were calculated to determine the diagnostic value of the aforementioned criteria.
RESULTS The study included 63 nodules in 60 patients (mean age, 11.0 ± 5.2 years; 26 male). There were no statistically significant differences between the specificity, accuracy, or AUC of criterion II and criterion III (95.1% vs 80.5%, 84.1% vs 87.3%, and 0.794 vs 0.902; all P > 0.017). Notably, criterion III showed a higher diagnostic sensitivity than criterion II (100% vs 63.6%; P < 0.017). However, both the specificity and accuracy of criterion I was inferior to those of criterion II and criterion III (all P < 0.017). For pediatric patients more than 5 years old, the performance of the three criteria was overall similar when patients were subcategorized by age when compared to all patients in aggregate.
CONCLUSION CEUS LI-RADS combined with AFP may be a powerful diagnostic tool in pediatric patients. LR-4 with elevated AFP, LR-5 or LR-M lesions is highly suggestive of malignant tumors.
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Affiliation(s)
- Zhen-Peng Jiang
- Department of Medical Ultrasound, West China Hospital of Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Ke-Yu Zeng
- Department of Medical Ultrasound, West China Hospital of Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Jia-Yan Huang
- Department of Medical Ultrasound, West China Hospital of Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Jie Yang
- Department of Medical Ultrasound, West China Hospital of Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Rui Yang
- Department of Medical Ultrasound, West China Hospital of Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Jia-Wu Li
- Department of Medical Ultrasound, West China Hospital of Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Ting-Ting Qiu
- Department of Medical Ultrasound, West China Hospital of Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Yan Luo
- Department of Medical Ultrasound, West China Hospital of Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Qiang Lu
- Department of Medical Ultrasound, West China Hospital of Sichuan University, Chengdu 610041, Sichuan Province, China
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Diagnosis and Follow-up of Incidental Liver Lesions in Children. J Pediatr Gastroenterol Nutr 2022; 74:320-327. [PMID: 34984985 DOI: 10.1097/mpg.0000000000003377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Incidental liver lesions are identified in children without underlying liver disease or increased risk of hepatic malignancy in childhood. Clinical and imaging evaluation of incidental liver lesions can be complex and may require a multidisciplinary approach. This review aims to summarize the diagnostic process and follow-up of incidental liver lesions based on review of the literature, use of state-of-the-art imaging, and our institutional experience. Age at presentation, gender, alpha fetoprotein levels, tumor size, and imaging characteristics should all be taken into consideration to optimize diagnosis process. Some lesions, such as simple liver cyst, infantile hemangioma, focal nodular hyperplasia (FNH), and focal fatty lesions, have specific imaging characteristics. Recently, contrast-enhanced ultrasound (CEUS) was Food and Drug Administration (FDA)-approved for the evaluation of pediatric liver lesions. CEUS is most specific in lesions smaller than 3 cm and is most useful in the diagnosis of infantile hemangioma, FNH, and focal fatty lesions. The use of hepatobiliary contrast in MRI increases specificity in the diagnosis of FNH. Recently, lesion characteristics in MRI were found to correlate with subtypes of hepatocellular adenomas and associated risk for hemorrhage and malignant transformation. Biopsy should be considered when there are no specific imaging characteristics of a benign lesion. Surveillance with imaging and alpha fetoprotein (AFP) should be performed to confirm the stability of lesions when the diagnosis cannot be determined, and whenever biopsy is not feasible.
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Zhuang H, Zhang J, Liao F. A systematic review on application of deep learning in digestive system image processing. THE VISUAL COMPUTER 2021; 39:2207-2222. [PMID: 34744231 PMCID: PMC8557108 DOI: 10.1007/s00371-021-02322-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/30/2021] [Indexed: 05/07/2023]
Abstract
With the advent of the big data era, the application of artificial intelligence represented by deep learning in medicine has become a hot topic. In gastroenterology, deep learning has accomplished remarkable accomplishments in endoscopy, imageology, and pathology. Artificial intelligence has been applied to benign gastrointestinal tract lesions, early cancer, tumors, inflammatory bowel diseases, livers, pancreas, and other diseases. Computer-aided diagnosis significantly improve diagnostic accuracy and reduce physicians' workload and provide a shred of evidence for clinical diagnosis and treatment. In the near future, artificial intelligence will have high application value in the field of medicine. This paper mainly summarizes the latest research on artificial intelligence in diagnosing and treating digestive system diseases and discussing artificial intelligence's future in digestive system diseases. We sincerely hope that our work can become a stepping stone for gastroenterologists and computer experts in artificial intelligence research and facilitate the application and development of computer-aided image processing technology in gastroenterology.
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Affiliation(s)
- Huangming Zhuang
- Gastroenterology Department, Renmin Hospital of Wuhan University, Wuhan, 430060 Hubei China
| | - Jixiang Zhang
- Gastroenterology Department, Renmin Hospital of Wuhan University, Wuhan, 430060 Hubei China
| | - Fei Liao
- Gastroenterology Department, Renmin Hospital of Wuhan University, Wuhan, 430060 Hubei China
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Hu H, Wang W, Chen L, Ruan S, Chen S, Li X, Lu M, Xie X, Kuang M. Artificial intelligence assists identifying malignant versus benign liver lesions using contrast-enhanced ultrasound. J Gastroenterol Hepatol 2021; 36:2875-2883. [PMID: 33880797 PMCID: PMC8518504 DOI: 10.1111/jgh.15522] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 03/14/2021] [Accepted: 04/12/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIM This study aims to construct a strategy that uses assistance from artificial intelligence (AI) to assist radiologists in the identification of malignant versus benign focal liver lesions (FLLs) using contrast-enhanced ultrasound (CEUS). METHODS A training set (patients = 363) and a testing set (patients = 211) were collected from our institute. On four-phase CEUS images in the training set, a composite deep learning architecture was trained and tuned for differentiating malignant and benign FLLs. In the test dataset, AI performance was evaluated by comparison with radiologists with varied levels of experience. Based on the comparison, an AI assistance strategy was constructed, and its usefulness in reducing CEUS interobserver heterogeneity was further tested. RESULTS In the test set, to identify malignant versus benign FLLs, AI achieved an area under the curve of 0.934 (95% CI 0.890-0.978) with an accuracy of 91.0%. Comparing with radiologists reviewing videos along with complementary patient information, AI outperformed residents (82.9-84.4%, P = 0.038) and matched the performance of experts (87.2-88.2%, P = 0.438). Due to the higher positive predictive value (PPV) (AI: 95.6% vs residents: 88.6-89.7%, P = 0.056), an AI strategy was defined to improve the malignant diagnosis. With the assistance of AI, radiologists exhibited a sensitivity improvement of 97.0-99.4% (P < 0.05) and an accuracy of 91.0-92.9% (P = 0.008-0.189), which was comparable with that of the experts (P = 0.904). CONCLUSIONS The CEUS-based AI strategy improved the performance of residents and reduced CEUS's interobserver heterogeneity in the differentiation of benign and malignant FLLs.
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Affiliation(s)
- Hang‐Tong Hu
- Department of Medical Ultrasonics, Ultrasomics Artificial Intelligence X‐LabInstitute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat‐Sen UniversityGuangzhouChina,Department of Hepatobiliary SurgeryThe First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - Wei Wang
- Department of Medical Ultrasonics, Ultrasomics Artificial Intelligence X‐LabInstitute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat‐Sen UniversityGuangzhouChina
| | - Li‐Da Chen
- Department of Medical Ultrasonics, Ultrasomics Artificial Intelligence X‐LabInstitute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat‐Sen UniversityGuangzhouChina
| | - Si‐Min Ruan
- Department of Medical Ultrasonics, Ultrasomics Artificial Intelligence X‐LabInstitute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat‐Sen UniversityGuangzhouChina
| | - Shu‐Ling Chen
- Department of Medical Ultrasonics, Ultrasomics Artificial Intelligence X‐LabInstitute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat‐Sen UniversityGuangzhouChina
| | - Xin Li
- Research Center of GE HealthcareGeneral Electric China Technology CenterShanghaiChina
| | - Ming‐De Lu
- Department of Medical Ultrasonics, Ultrasomics Artificial Intelligence X‐LabInstitute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat‐Sen UniversityGuangzhouChina,Department of Hepatobiliary SurgeryThe First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - Xiao‐Yan Xie
- Department of Medical Ultrasonics, Ultrasomics Artificial Intelligence X‐LabInstitute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat‐Sen UniversityGuangzhouChina
| | - Ming Kuang
- Department of Medical Ultrasonics, Ultrasomics Artificial Intelligence X‐LabInstitute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat‐Sen UniversityGuangzhouChina,Department of Hepatobiliary SurgeryThe First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
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He M, Zhu L, Huang M, Zhong L, Ye Z, Jiang T. Comparison Between SonoVue and Sonazoid Contrast-Enhanced Ultrasound in Characterization of Focal Nodular Hyperplasia Smaller Than 3 cm. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2021; 40:2095-2104. [PMID: 33305869 DOI: 10.1002/jum.15589] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 11/16/2020] [Accepted: 11/18/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVES This study aimed to compare the diagnostic efficacy of contrast-enhanced ultrasound (CEUS), including SonoVue (SV; sulfur hexafluoride; Bracco SpA, Milan, Italy) and Sonazoid (SZ; perflubutane; GE Healthcare, Oslo, Norway), and explore the differences between them in the characterization of CEUS features in focal nodular hyperplasia (FNH) smaller than 3 cm. METHODS This retrospective study included 31 lesions smaller than 3 cm diagnosed as FNH by CEUS between April 2019 and November 2019. Nine patients underwent SZ CEUS examinations, and 22 patients underwent SV CEUS examinations; all of them were confirmed by pathologic examinations or 2 other kinds of CEUS methods. We compared the CEUS features between SZ and SV in different phases, including arterial, portal venous, delayed, and Kupffer (SZ) phases. RESULTS Twenty-eight lesions were eventually diagnosed as FNH; 3 were misdiagnosed as FNH by SV CEUS. The overall diagnostic accuracy of CEUS including SZ and SV was 90.3% (28 of 31). No significant difference was found (P > .05) for the positive predictive value. Likewise, no significant difference in depicting centrifugal filling (9 of 9 versus 19 of 19), spoke wheel artery (6 of 9 versus 8 of 19), or feeding artery (2 of 9 versus 10 of 19) features was found between the contrast agents; However, SZ was significantly better at depicting the presence of a central scar than SV (5 of 9 versus 3 of 19; P = .030). Misdiagnosed cases are discussed in detail. CONCLUSIONS Contrast-enhanced ultrasound enables an accurate diagnosis in FNH smaller than 3 cm. Sonazoid CEUS and SV CEUS were comparable in diagnosing small FNH, and both agents were highly capable of depicting the centrifugal filling dynamic process of FNH smaller than 3 cm. Sonazoid CEUS might be better than SV CEUS at depicting a central scar.
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Affiliation(s)
- Mengna He
- Department of Ultrasound, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Lu Zhu
- Department of Ultrasound, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Min Huang
- Department of Ultrasound, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Liyun Zhong
- Department of Ultrasound, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhengdu Ye
- Department of Ultrasound, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Tian'an Jiang
- Department of Ultrasound, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Zhang D, Wei Q, Wu GG, Zhang XY, Lu WW, Lv WZ, Liao JT, Cui XW, Ni XJ, Dietrich CF. Preoperative Prediction of Microvascular Invasion in Patients With Hepatocellular Carcinoma Based on Radiomics Nomogram Using Contrast-Enhanced Ultrasound. Front Oncol 2021; 11:709339. [PMID: 34557410 PMCID: PMC8453164 DOI: 10.3389/fonc.2021.709339] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 08/13/2021] [Indexed: 01/27/2023] Open
Abstract
PURPOSE This study aimed to develop a radiomics nomogram based on contrast-enhanced ultrasound (CEUS) for preoperatively assessing microvascular invasion (MVI) in hepatocellular carcinoma (HCC) patients. METHODS A retrospective dataset of 313 HCC patients who underwent CEUS between September 20, 2016 and March 20, 2020 was enrolled in our study. The study population was randomly grouped as a primary dataset of 192 patients and a validation dataset of 121 patients. Radiomics features were extracted from the B-mode (BM), artery phase (AP), portal venous phase (PVP), and delay phase (DP) images of preoperatively acquired CEUS of each patient. After feature selection, the BM, AP, PVP, and DP radiomics scores (Rad-score) were constructed from the primary dataset. The four radiomics scores and clinical factors were used for multivariate logistic regression analysis, and a radiomics nomogram was then developed. We also built a preoperative clinical prediction model for comparison. The performance of the radiomics nomogram was evaluated via calibration, discrimination, and clinical usefulness. RESULTS Multivariate analysis indicated that the PVP and DP Rad-score, tumor size, and AFP (alpha-fetoprotein) level were independent risk predictors associated with MVI. The radiomics nomogram incorporating these four predictors revealed a superior discrimination to the clinical model (based on tumor size and AFP level) in the primary dataset (AUC: 0.849 vs. 0.690; p < 0.001) and validation dataset (AUC: 0.788 vs. 0.661; p = 0.008), with a good calibration. Decision curve analysis also confirmed that the radiomics nomogram was clinically useful. Furthermore, the significant improvement of net reclassification index (NRI) and integrated discriminatory improvement (IDI) implied that the PVP and DP radiomics signatures may be very useful biomarkers for MVI prediction in HCC. CONCLUSION The CEUS-based radiomics nomogram showed a favorable predictive value for the preoperative identification of MVI in HCC patients and could guide a more appropriate surgical planning.
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Affiliation(s)
- Di Zhang
- Department of Medical Ultrasound, Affiliated Hospital of Nantong University, Nantong, China
| | - Qi Wei
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ge-Ge Wu
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xian-Ya Zhang
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wen-Wu Lu
- Department of Medical Ultrasound, Affiliated Hospital of Nantong University, Nantong, China
| | - Wen-Zhi Lv
- Department of Artificial Intelligence, Julei Technology Company, Wuhan, China
| | - Jin-Tang Liao
- Department of Diagnostic Ultrasound, Xiang Ya Hospital, Central South University, Changsha, China
| | - Xin-Wu Cui
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xue-Jun Ni
- Department of Medical Ultrasound, Affiliated Hospital of Nantong University, Nantong, China
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12
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Wang W, Wu SS, Zhang JC, Xian MF, Huang H, Li W, Zhou ZM, Zhang CQ, Wu TF, Li X, Xu M, Xie XY, Kuang M, Lu MD, Hu HT. Preoperative Pathological Grading of Hepatocellular Carcinoma Using Ultrasomics of Contrast-Enhanced Ultrasound. Acad Radiol 2021; 28:1094-1101. [PMID: 32622746 DOI: 10.1016/j.acra.2020.05.033] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 05/12/2020] [Accepted: 05/15/2020] [Indexed: 02/07/2023]
Abstract
RATIONALE AND OBJECTIVES To develop an ultrasomics model for preoperative pathological grading of hepatocellular carcinoma (HCC) using contrast-enhanced ultrasound (CEUS). MATERIAL AND METHODS A total of 235 HCCs were retrospectively enrolled, including 65 high-grade and 170 low-grade HCCs. Representative images of four-phase CEUS were selected from the baseline sonography, arterial, portal venous, and delayed phase images. Tumor ultrasomics features were automatically extracted using Ultrasomics-Platform software. Models were built via the classifier support vector machine, including an ultrasomics model using the ultrasomics features, a clinical model using the clinical factors, and a combined model using them both. Model performances were tested in the independent validation cohort considering efficiency and clinical usefulness. RESULTS A total of 1502 features were extracted from each image. After the reproducibility test and dimensionality reduction, 25 ultrasomics features and 3 clinical factors were selected to build the models. In the validation cohort, the combined model showed the best predictive power, with an area under the curve value of 0.785 (95% confidence interval [CI] 0.662-0.909), compared to the ultrasomics model of 0.720 (95% CI 0.576-0.864) and the clinical model of 0.665 (95% CI 0.537-0.793). Decision curve analysis suggested that the combined model was clinically useful, with a corresponding net benefit of 0.760 compared to the other two models. CONCLUSION We presented an ultrasomics-clinical model based on multiphase CEUS imaging and clinical factors, which showed potential value for the preoperative discrimination of HCC pathological grades.
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Li W, Lv XZ, Zheng X, Ruan SM, Hu HT, Chen LD, Huang Y, Li X, Zhang CQ, Xie XY, Kuang M, Lu MD, Zhuang BW, Wang W. Machine Learning-Based Ultrasomics Improves the Diagnostic Performance in Differentiating Focal Nodular Hyperplasia and Atypical Hepatocellular Carcinoma. Front Oncol 2021; 11:544979. [PMID: 33842303 PMCID: PMC8033198 DOI: 10.3389/fonc.2021.544979] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 03/03/2021] [Indexed: 12/12/2022] Open
Abstract
Background The typical enhancement patterns of hepatocellular carcinoma (HCC) on contrast-enhanced ultrasound (CEUS) are hyper-enhanced in the arterial phase and washed out during the portal venous and late phases. However, atypical variations make a differential diagnosis both challenging and crucial. We aimed to investigate whether machine learning-based ultrasonic signatures derived from CEUS images could improve the diagnostic performance in differentiating focal nodular hyperplasia (FNH) and atypical hepatocellular carcinoma (aHCC). Patients and Methods A total of 226 focal liver lesions, including 107 aHCC and 119 FNH lesions, examined by CEUS were reviewed retrospectively. For machine learning-based ultrasomics, 3,132 features were extracted from the images of the baseline, arterial, and portal phases. An ultrasomics signature was generated by a machine learning model. The predictive model was constructed using the support vector machine method trained with the following groups: ultrasomics features, radiologist’s score, and combination of ultrasomics features and radiologist’s score. The diagnostic performance was explored using the area under the receiver operating characteristic curve (AUC). Results A total of 14 ultrasomics features were chosen to build an ultrasomics model, and they presented good performance in differentiating FNH and aHCC with an AUC of 0.86 (95% confidence interval [CI]: 0.80, 0.89), a sensitivity of 76.6% (95% CI: 67.5%, 84.3%), and a specificity of 80.5% (95% CI: 70.6%, 85.9%). The model trained with a combination of ultrasomics features and the radiologist’s score achieved a significantly higher AUC (0.93, 95% CI: 0.89, 0.96) than that trained with the radiologist’s score (AUC: 0.84, 95% CI: 0.79, 0.89, P < 0.001). For the sub-group of HCC with normal AFP value, the model trained with a combination of ultrasomics features, and the radiologist’s score remain achieved the highest AUC of 0.92 (95% CI: 0.87, 0.96) compared to that with the ultrasomics features (AUC: 0.86, 95% CI: 0.74, 0.89, P < 0.001) and radiologist’s score (AUC: 0.86, 95% CI: 0.79, 0.91, P < 0.001). Conclusions Machine learning-based ultrasomics performs as well as the staff radiologist in predicting the differential diagnosis of FNH and aHCC. Incorporating an ultrasomics signature into the radiologist’s score improves the diagnostic performance in differentiating FNH and aHCC.
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Affiliation(s)
- Wei Li
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, Ultrasomics Artificial Intelligence X-Lab, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Xiao-Zhou Lv
- Department of Traditional Chinese Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xin Zheng
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, Ultrasomics Artificial Intelligence X-Lab, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Si-Min Ruan
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, Ultrasomics Artificial Intelligence X-Lab, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Hang-Tong Hu
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, Ultrasomics Artificial Intelligence X-Lab, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Li-Da Chen
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, Ultrasomics Artificial Intelligence X-Lab, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yang Huang
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, Ultrasomics Artificial Intelligence X-Lab, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Xin Li
- Research Center, GE Healthcare, Shanghai, China
| | - Chu-Qing Zhang
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Yan Xie
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, Ultrasomics Artificial Intelligence X-Lab, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Ming Kuang
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, Ultrasomics Artificial Intelligence X-Lab, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.,Department of Hepatobiliary Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Ming-De Lu
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, Ultrasomics Artificial Intelligence X-Lab, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.,Department of Hepatobiliary Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Bo-Wen Zhuang
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, Ultrasomics Artificial Intelligence X-Lab, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Wei Wang
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, Ultrasomics Artificial Intelligence X-Lab, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
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14
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Zou MH, Huang Q, Zou Q, Jiang Y, Ju JX, Zhou HC, Jiao J, Zheng RQ. Clinical and Contrast-enhanced Ultrasound Characteristics of Epithelioid and Classic Hepatic Angiomyolipoma: Comparison With Alpha-fetoprotein-negative Hepatocellular Carcinoma. ULTRASOUND IN MEDICINE & BIOLOGY 2021; 47:446-453. [PMID: 33353786 DOI: 10.1016/j.ultrasmedbio.2020.11.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/24/2020] [Accepted: 11/19/2020] [Indexed: 06/12/2023]
Abstract
Hepatic angiomyolipoma (HAML) comprises epithelioid angiomyolipoma (EAML) and classic hepatic angiomyolipoma (CAML). The imaging appearance of HAML varies widely, and EAML is more easily misdiagnosed as hepatocellular carcinoma (HCC) than as CAML. The clinical and contrast-enhanced ultrasound (CEUS) features of CAML, EAML and HCC with negative alpha-fetoprotein protein expression (HCC[AFP-]) were retrospectively reviewed. The hyper-vascular type was more commonly found in CAML and EAML lesions than in HCC lesions. Most lesions were hyper-enhanced in the arterial phase. CAMLs showed prolonged hyper-enhancement or iso-enhancement during the portal and late phases on CEUS, making them easily distinguishable from HCC(AFP-). Some EAML lesions (41.7%) were hypo-echoic, similar to HCC(AFP-). However, the hypo-enhancement of EAML lesions occurred later than that of HCC(AFP-) lesions. Thus, our findings may be useful in distinguishing among these lesions to improve diagnostic accuracy.
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Affiliation(s)
- Min-Hong Zou
- Department of Ultrasound, the Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Qing Huang
- Department of General Surgery, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Second Affiliated Hospital of South China University of Technology, Guangzhou, Guangdong, China
| | - Qiong Zou
- Department of Nuclear Medicine, Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Ye Jiang
- Department of Pathology, Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Jin-Xiu Ju
- Department of Ultrasound, the Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Hui-Chao Zhou
- Department of Ultrasound, the Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Ju Jiao
- Department of Nuclear Medicine, Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Rong-Qin Zheng
- Department of Ultrasound, the Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
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15
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Fang C, Anupindi SA, Back SJ, Franke D, Green TG, Harkanyi Z, Jüngert J, Kwon JK, Paltiel HJ, Squires JH, Zefov VN, McCarville MB. Contrast-enhanced ultrasound of benign and malignant liver lesions in children. Pediatr Radiol 2021; 51:2181-2197. [PMID: 33978801 PMCID: PMC8566652 DOI: 10.1007/s00247-021-04976-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/17/2020] [Accepted: 01/14/2021] [Indexed: 12/14/2022]
Abstract
Contrast-enhanced ultrasound (CEUS) is increasingly being used in children. One of the most common referrals for CEUS performance is characterization of indeterminate focal liver lesions and follow-up of known liver lesions. In this setting, CEUS is performed with intravenous administration of ultrasound contrast agents (UCAs). When injected into a vein, UCA microbubbles remain confined within the vascular network until they dissipate. Therefore, visualization of UCA within the tissues and lesions corresponds to true blood flow. CEUS enables continuous, real-time observation of the enhancement pattern of a focal liver lesion, allowing in most cases for a definite diagnosis and obviating the need for further cross-sectional imaging or other interventional procedures. The recent approval of Lumason (Bracco Diagnostics, Monroe Township, NJ) for pediatric liver CEUS applications has spurred the widespread use of CEUS. In this review article we describe the role of CEUS in pediatric liver applications, focusing on the examination technique and interpretation of main imaging findings of the most commonly encountered benign and malignant focal liver lesions. We also compare the diagnostic performance of CEUS with other imaging modalities for accurate characterization of focal liver lesions.
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Affiliation(s)
- Cheng Fang
- Department of Radiology, King's College Hospital, Denmark Hill, London, SE5 9RS, UK.
| | - Sudha A. Anupindi
- Department of Radiology, Perelman School of Medicine, Children’s Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA USA
| | - Susan J. Back
- Department of Radiology, Perelman School of Medicine, Children’s Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA USA
| | - Doris Franke
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Hannover, Germany
| | | | - Zoltan Harkanyi
- Department of Radiology, Heim Pál National Pediatric Institute, Budapest, Hungary
| | - Jörg Jüngert
- Department of Pediatrics, Friedrich-Alexander University Erlangen–Nürnberg, Erlangen, Germany
| | - Jeannie K. Kwon
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX USA
| | - Harriet J. Paltiel
- Department of Radiology, Harvard Medical School, Boston Children’s Hospital, Boston, MA USA
| | - Judy H. Squires
- Department of Radiology, Children’s Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA USA
| | - Vassil N. Zefov
- Department of Radiology, Dubai Health Authority, Latifa Women and Children Hospital, Dubai, UAE
| | - M. Beth McCarville
- Department of Diagnostic Imaging, St. Jude Children’s Research Hospital, Memphis, TN USA
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Kang TW, Jeong WK, Kim YY, Min JH, Kim YK, Kim SH, Sinn DH, Kim K. Comparison of Super-Resolution US and Contrast Material-enhanced US in Detection of the Spoke Wheel Sign in Patients with Focal Nodular Hyperplasia. Radiology 2020; 298:82-90. [PMID: 33107798 DOI: 10.1148/radiol.2020200885] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Background Diagnosis of focal nodular hyperplasia (FNH) with US generally requires the use of contrast material. The effect of the super-resolution US technique on the diagnosis of FNH is unknown. Purpose To investigate the equivalence between super-resolution US and contrast material-enhanced US in the detection of spoke wheel sign in patients with FNH by comparing patterns of tumor vascularity. Materials and Methods This is a secondary analysis of a prospective trial (NCT02737865) that enrolled participants diagnosed with FNH between May 2016 and March 2019. These patients underwent super-resolution US and subsequent contrast-enhanced US with perfluorobutane microbubbles on the same day. The primary outcome was the confidence score of detecting spoke wheel sign in patients with FNH at US. Two radiologists used a four-point scale to score their confidence in the presence of the spoke wheel sign based on super-resolution US and contrast-enhanced US findings. Two one-sided tests were used to test the equivalence between super-resolution US and contrast-enhanced US in terms of the score for the confidence level of the spoke wheel sign. Interobserver agreement for both techniques between the two radiologists, using the recorded images, was analyzed by using an intraclass correlation coefficient. Results In 62 patients (mean age, 37 years; range, 20-69 years; 41 women) with FNH, the majority of patients showed a spoke wheel sign at super-resolution US and contrast-enhanced US (63% [39 of 62] and 71% [44 of 62], respectively; P = .36). There was no significant difference between the super-resolution US and contrast-enhanced US techniques regarding the confidence score for the spoke wheel sign (mean score, 1.8 vs 2.0; P = .03 for equivalence test). The intraclass correlation coefficients of super-resolution US and contrast-enhanced US regarding the presence of the spoke wheel sign were 0.82 (95% confidence interval: 0.73, 0.96) and 0.58 (95% confidence interval: 0.41, 0.73), respectively. Conclusion In comparison with contrast-enhanced US, super-resolution US provided a reliable rate of detection of the spoke wheel sign in patients with focal nodular hyperplasia. © RSNA, 2020 Online supplemental material is available for this article. See also the editorial by Fetzer in this issue.
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Affiliation(s)
- Tae Wook Kang
- From the Department of Radiology and Center for Imaging Science (T.W.K., W.K.J., Y.Y.K., J.H.M., Y.K.K., S.H.K.) and Department of Medicine (D.H.S.), Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-gu, Seoul 06351, Republic of Korea; and Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea (K.K.)
| | - Woo Kyoung Jeong
- From the Department of Radiology and Center for Imaging Science (T.W.K., W.K.J., Y.Y.K., J.H.M., Y.K.K., S.H.K.) and Department of Medicine (D.H.S.), Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-gu, Seoul 06351, Republic of Korea; and Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea (K.K.)
| | - Yeun-Yoon Kim
- From the Department of Radiology and Center for Imaging Science (T.W.K., W.K.J., Y.Y.K., J.H.M., Y.K.K., S.H.K.) and Department of Medicine (D.H.S.), Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-gu, Seoul 06351, Republic of Korea; and Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea (K.K.)
| | - Ji Hye Min
- From the Department of Radiology and Center for Imaging Science (T.W.K., W.K.J., Y.Y.K., J.H.M., Y.K.K., S.H.K.) and Department of Medicine (D.H.S.), Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-gu, Seoul 06351, Republic of Korea; and Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea (K.K.)
| | - Young Kon Kim
- From the Department of Radiology and Center for Imaging Science (T.W.K., W.K.J., Y.Y.K., J.H.M., Y.K.K., S.H.K.) and Department of Medicine (D.H.S.), Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-gu, Seoul 06351, Republic of Korea; and Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea (K.K.)
| | - Seong Hyun Kim
- From the Department of Radiology and Center for Imaging Science (T.W.K., W.K.J., Y.Y.K., J.H.M., Y.K.K., S.H.K.) and Department of Medicine (D.H.S.), Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-gu, Seoul 06351, Republic of Korea; and Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea (K.K.)
| | - Dong Hyun Sinn
- From the Department of Radiology and Center for Imaging Science (T.W.K., W.K.J., Y.Y.K., J.H.M., Y.K.K., S.H.K.) and Department of Medicine (D.H.S.), Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-gu, Seoul 06351, Republic of Korea; and Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea (K.K.)
| | - Kyunga Kim
- From the Department of Radiology and Center for Imaging Science (T.W.K., W.K.J., Y.Y.K., J.H.M., Y.K.K., S.H.K.) and Department of Medicine (D.H.S.), Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-gu, Seoul 06351, Republic of Korea; and Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea (K.K.)
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Wa ZC, Du T, Li XF, Xu HQ, Suo-Ang QC, Chen LD, Hu HT, Wang W, Lu MD. Differential diagnosis between hepatic alveolar echinococcosis and intrahepatic cholangiocarcinoma with conventional ultrasound and contrast-enhanced ultrasound. BMC Med Imaging 2020; 20:101. [PMID: 32854653 PMCID: PMC7453544 DOI: 10.1186/s12880-020-00499-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 08/19/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Misclassifications of hepatic alveolar echinococcosis (HAE) as intrahepatic cholangiocarcinoma (ICC) may lead to inappropriate treatment strategies. The aim of this study was to explore the differential diagnosis with conventional ultrasound and contrast-enhanced ultrasound (CEUS). METHODS Sixty HAE lesions with 60 propensity score-matched ICC lesions were retrospectively collected. The 120 lesions were randomly divided into a training set (n = 80) and a testing set (n = 40). In the training set, the most useful independent conventional ultrasound and CEUS features was selected for differentiating between HAE and ICC. Then, a simplified US scoring system for diagnosing HAE was constructed based on selected features with weighted coefficients. The constructed US score for HAE was validated in both the training set and the testing set, and diagnostic performance was evaluated. RESULTS Compared with ICC lesions, HAE lesions were mostly located in the right lobe and had mixed echogenicity, a pseudocystic appearance and foci calcifications on conventional ultrasound. On CEUS, HAE lesions showed more regular rim-like enhancement than ICC lesions and had late washout with a long enhancement duration. The simplified US score consisted of echogenicity, pseudocystic/calcification, bile duct dilatation, enhancement pattern, enhancement duration, and marked washout. In the testing set, the sensitivity, specificity, LR+, LR- and the area under the ROC curve for the score to differentiate HAE from ICC were 80.0, 81.3%, 4.27, 0.25 and 0.905, respectively. CONCLUSIONS The US score based on typical features from both conventional ultrasound and CEUS could accurately differentiate HAE from ICC.
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Affiliation(s)
- Zeng-Cheng Wa
- Department of Medical Ultrasonics, Qinghai Red Cross Hospital, Xining, China
| | - Ting Du
- Department of Medical Ultrasonics, Qinghai Red Cross Hospital, Xining, China
| | - Xian-Feng Li
- Department of Medical Ultrasonics, Qinghai Red Cross Hospital, Xining, China
| | - Hui-Qing Xu
- Department of Medical Ultrasonics, Qinghai Red Cross Hospital, Xining, China
| | - Qiu-Cuo Suo-Ang
- Department of Medical Ultrasonics, People's Hospital of Chengduo County, Yushu Prefecture, China
| | - Li-Da Chen
- Department of Medical Ultrasonics, Ultrasomics Artificial Intelligence X-Lab, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China
| | - Hang-Tong Hu
- Department of Medical Ultrasonics, Ultrasomics Artificial Intelligence X-Lab, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China
| | - Wei Wang
- Department of Medical Ultrasonics, Ultrasomics Artificial Intelligence X-Lab, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China
| | - Ming-De Lu
- Department of Medical Ultrasonics, Ultrasomics Artificial Intelligence X-Lab, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China. .,Department of Hepatobiliary Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.
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18
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Abstract
Focal nodular hyperplasia and hepatocellular adenoma are benign liver lesions that occur most frequently in women and may be found as incidental findings on imaging. hepatocellular adenomas may be infrequently associated with malignant progression or risk of rupture and as such, require surveillance or definitive treatments based on their size threshold. It is important clinically to differentiate these lesions, and utilizing imaging modalities such as contrast enhanced ultrasound or magnetic resonance imaging can be helpful in diagnosis. Further molecular subtyping of hepatocellular adenoma lesions may be beneficial to describe risk factors and potential future clinical complications.
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Affiliation(s)
- Lauren Myers
- Division of Gastroenterology and Hepatology, Oregon Health and Science University, 3181 Southwest Sam Jackson Park Road, MNP 4112, Portland, OR 97239, USA.
| | - Joseph Ahn
- Division of Gastroenterology and Hepatology, Oregon Health and Science University, 3181 Southwest Sam Jackson Park Road, MNP 4112, Portland, OR 97239, USA
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19
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Characterization of Indeterminate Liver Lesions on CT and MRI With Contrast-Enhanced Ultrasound: What Is the Evidence? AJR Am J Roentgenol 2020; 214:1295-1304. [DOI: 10.2214/ajr.19.21498] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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20
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Hamada K, Saitoh S, Nishino N, Fukushima D, Techigawara K, Koyanagi R, Horikawa Y, Shiwa Y, Sakuma H, Kondo F. An elderly man with progressive focal nodular hyperplasia. Clin J Gastroenterol 2019; 13:413-420. [PMID: 31768882 PMCID: PMC7239834 DOI: 10.1007/s12328-019-01072-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 11/08/2019] [Indexed: 11/25/2022]
Abstract
Patients with focal nodular hyperplasia (FNH) develop benign hepatocellular nodules. FNH most frequently occurs in young women. There are no reports of the onset of FNH in elderly men. We report a case of FNH in an elderly man, whose nodules increased in number and size. The patient underwent surgery for carcinoma of the left renal pelvis at 69 years of age; no liver masses were noted on yearly follow-up contrast-enhanced computed tomography (CECT). Ten years later, CECT revealed a hepatic mass, and magnetic resonance imaging suggested FNH. The nodules increased in number and size in subsequent follow-up examinations.
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Affiliation(s)
- Koichi Hamada
- Department of Minimally Invasive Surgical and Medical Oncology, Fukushima Medical University, 1 Hikariga-oka, Fukushima-shi, Fukushima, 960-1295, Japan. .,Department of Gastroenterology, Southern-Tohoku General Hospital, 7-115, Yatsuyamada, Koriyama-shi, Fukushima, 963-8563, Japan.
| | - Satoshi Saitoh
- Department of Hepatology, Toranomon Hospital, 2-2-2 Toranomon, Minato-ku, Tokyo, 105-8470, Japan
| | - Noriyuki Nishino
- Department of Gastroenterology, Southern-Tohoku General Hospital, 7-115, Yatsuyamada, Koriyama-shi, Fukushima, 963-8563, Japan
| | - Daizo Fukushima
- Department of Gastroenterology, Southern-Tohoku General Hospital, 7-115, Yatsuyamada, Koriyama-shi, Fukushima, 963-8563, Japan
| | - Kae Techigawara
- Department of Gastroenterology, Southern-Tohoku General Hospital, 7-115, Yatsuyamada, Koriyama-shi, Fukushima, 963-8563, Japan
| | - Ryota Koyanagi
- Department of Gastroenterology, Southern-Tohoku General Hospital, 7-115, Yatsuyamada, Koriyama-shi, Fukushima, 963-8563, Japan
| | - Yoshinori Horikawa
- Department of Gastroenterology, Southern-Tohoku General Hospital, 7-115, Yatsuyamada, Koriyama-shi, Fukushima, 963-8563, Japan
| | - Yoshiki Shiwa
- Department of Gastroenterology, Southern-Tohoku General Hospital, 7-115, Yatsuyamada, Koriyama-shi, Fukushima, 963-8563, Japan
| | - Hideo Sakuma
- Department of Pathology, Southern-Tohoku General Hospital, 7-115, Yatsuyamada, Koriyama-shi, Fukushima, 963-8563, Japan
| | - Fukuo Kondo
- Department of Pathology, Teikyo University Hospital, 2-11-1 Kaga, Itabashi-Ku, Tokyo, 173-8606, Japan
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Shang HC, Li X, Wang XM. Clinical value of digital subtraction angiography and contrast-enhanced ultrasound in evaluating early hepatic artery thrombosis after liver transplantation. Shijie Huaren Xiaohua Zazhi 2019; 27:1215-1219. [DOI: 10.11569/wcjd.v27.i19.1215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Hepatic artery embolism is a serious vascular complication after liver transplantation. If not detected and handled promptly, it will lead to insufficient perfusion of liver parenchyma, ischemia of the biliary tract, failure of liver transplantation, and even death. Contrast-enhanced ultrasound (CEUS) can effectively display the perfusion status of micro-vessels and accurately evaluate whether the micro-vessels are patent or not.
AIM To evaluate the clinical value of digital subtraction angiography (DSA) and CEUS in evaluating early hepatic artery thrombosis (HAT) after liver transplantation.
METHODS Twenty-one patients who were suspected of having HAT after liver transplantation were selected as study subjects. CEUS was performed to observe whether there was HAT after liver transplantation and the whole hepatic perfusion. The result of DSA was used as the "gold standard" for comparative analysis.
RESULTS DSA showed that 16 patients developed HAT. CEUS showed that hepatic arteries were not displayed in the arterial phase, hepatic arteries were unobstructed in five patients, and hepatic arteries were clearly displayed in the arterial phase. The sensitivity, specificity, and accuracy of CEUS in evaluating early HAT after liver transplantation were all 100%.
CONCLUSION CEUS can effectively monitor hepatic artery blood flow and hepatic perfusion after liver transplantation, thus providing a reliable imaging method for early detection of HAT.
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Affiliation(s)
- Hong-Chao Shang
- Department of Radiology, Zhejiang Wenling Traditional Chinese Medicine Hospital, Wenling 317500, Zhejiang Province, China
| | - Xiao Li
- Department of Ultrasound, Zhejiang Jiashan Traditional Chinese Medical Hospital, Jiaxing 314100, Zhejiang Province, China
| | - Xiang-Ming Wang
- Department of Ultrasound, the First Affiliated Hospital of Zhejiang University, Hangzhou 310015, Zhejiang Province, China
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Müller-Peltzer K, Rübenthaler J, Negrao de Figueiredo G, Clevert DA. [CEUS-diagnosis of benign liver lesions]. Radiologe 2019; 58:521-527. [PMID: 29704011 DOI: 10.1007/s00117-018-0390-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
CLINICAL/METHODICAL ISSUE Focal liver lesions are commonly seen during routine ultrasound examinations. STANDARD RADIOLOGICAL METHODS With native ultrasound there are lesions that cannot be sufficiently characterized. In these cases additional imaging might be necessary. METHODICAL INNOVATIONS With contrast-enhanced ultrasound (CEUS), focal liver lesions can be characterized with high diagnostic accuracy. After the ultrasound contrast agent has been injected into a peripheral vein, the examiner saves video loops of the arterial, portal venous and late contrast phases. Combing the findings of native and contrast-enhanced ultrasound allows not only assessment of the etiology as benign or malignant but also detailed characterization of the focal liver lesion in most cases. PERFORMANCE Using CEUS, focal liver lesions can be characterized with a sensitivity of over 95% and a specificity of about 83%. ACHIEVEMENTS The advantages of CEUS include that there is no radiation exposure and that the ultrasound contrast agent has no effects on the function of the liver, kidneys or the thyroid gland. The main limiting factors for CEUS are bowel gas and obesity of the patient. PRACTICAL RECOMMENDATIONS CEUS can visualize micro- and macrovascularization of benign focal liver lesions in real time. It is a useful imaging modality in unclear cases.
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Affiliation(s)
- K Müller-Peltzer
- Klinik und Poliklinik für Radiologie, Interdisziplinäres Ultraschall-Zentrum, Universitätsklinikum der Ludwig-Maximilians-Universität München, Marchioninistr. 15, 81377, München, Deutschland.
| | - J Rübenthaler
- Klinik und Poliklinik für Radiologie, Interdisziplinäres Ultraschall-Zentrum, Universitätsklinikum der Ludwig-Maximilians-Universität München, Marchioninistr. 15, 81377, München, Deutschland
| | - G Negrao de Figueiredo
- Klinik und Poliklinik für Radiologie, Interdisziplinäres Ultraschall-Zentrum, Universitätsklinikum der Ludwig-Maximilians-Universität München, Marchioninistr. 15, 81377, München, Deutschland
| | - D A Clevert
- Klinik und Poliklinik für Radiologie, Interdisziplinäres Ultraschall-Zentrum, Universitätsklinikum der Ludwig-Maximilians-Universität München, Marchioninistr. 15, 81377, München, Deutschland
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Liver metastases of neuroendocrine tumors: is it possible to diagnose different histologic subtypes depending on multiphasic CT features? Abdom Radiol (NY) 2019; 44:2147-2155. [PMID: 30863999 DOI: 10.1007/s00261-019-01963-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
PURPOSE To assess and compare the multiphasic computed tomography (CT) features of neuroendocrine tumor (NET) liver metastases and to investigate the possibility to predict the histologic subtype of the primary tumor. MATERIALS AND METHODS Between January 2013 and December 2017 patients with biopsy proven NET with at least one liver metastasis who underwent multiphasic CT were enrolled in this study. All cases were acquired using a standardized multiphasic liver CT protocol, arterial, portal, and hepatic venous phases were obtained. Images were retrospectively analyzed in consensus by two abdominal radiologists blinded to clinical data and histologic subtype. The size, number, and location of lesions were noted. Enhancement patterns of each lesion on arterial, portal, and hepatic venous phases were assessed. For quantitative analysis, CT attenuation of tumors, liver parenchyma, and aorta were measured using a circular region of interest (ROI) on arterial, portal, and hepatic venous phases for reflecting the blood supply of the tumor. Tumor-to-aorta and tumor-to-liver ratio were calculated in all three phases. Differences between subtypes of NET liver metastases were studied using ROC analysis of clustered data. RESULTS A total of 255 neuroendocrine tumor liver metastases divided into 101 (39.6%) pancreatic, 60 (23.5%) gastroenteric and 94 (36.8%) lung NET liver metastases were analyzed. Contrast enhancement of lesions was homogeneous in 78% of patients (n = 199), which was significantly more frequent in patients with pancreatic group than in those with gastroenteric origin (n = 90, 89.1% vs. n = 28, 46.7%; p < 0.001). Gastroenteric NET metastases frequently showed heterogeneous enhancement, which was significantly higher than in the other two groups (50% vs. 3% and 2%). With respect to the location of the primary tumor, the difference in enhancement patterns of the liver lesions was statistically significant (p < 0.001). Pancreatic NET metastases were mostly hyperdense on arterial images and isodense on portal and hepatic venous phase images (79.2%, n = 80). Gastroenteric NET metastases were mostly hyperdense on arterial phase images and hypodense on portal and hepatic venous phase images (n = 28, 46.7%). The most frequent pattern for lung NET metastases was hypoattenuation on all three phase images (n = 44, 46.8%). ROC analysis of clustered data revealed statistically significant differences between pancreatic NET liver metastases, gastroenteric NET liver metastases, and lung NET liver metastases in terms of tumor-to-aorta (T-A) ratio and tumor-to-liver (T-L) ratio (p < 0.001). CONCLUSION We observed statistically significant differences in multiphasic CT features (enhancement pattern, T-A ratio, and T-L ratio) between histologic subtypes of NET liver metastases. As the difference in histological subtypes of NET liver metastases results in a different prognosis and different management strategy, these CT features might help to identify the primary tumor when it is not known to ensure accurate tumor staging and to provide optimal treatment.
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24
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Hu HT, Wang Z, Huang XW, Chen SL, Zheng X, Ruan SM, Xie XY, Lu MD, Yu J, Tian J, Liang P, Wang W, Kuang M. Ultrasound-based radiomics score: a potential biomarker for the prediction of microvascular invasion in hepatocellular carcinoma. Eur Radiol 2018; 29:2890-2901. [DOI: 10.1007/s00330-018-5797-0] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 08/24/2018] [Accepted: 09/24/2018] [Indexed: 02/06/2023]
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Lee J, Jeong WK, Lim HK, Kim AY. Focal Nodular Hyperplasia of the Liver: Contrast-Enhanced Ultrasonographic Features With Sonazoid. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2018; 37:1473-1480. [PMID: 29159819 DOI: 10.1002/jum.14490] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 08/18/2017] [Accepted: 08/30/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVES To investigate ultrasonographic features of focal nodular hyperplasia of the liver with contrast-enhanced ultrasonography (CEUS) using Sonazoid (perflubutane; GE Healthcare, Oslo, Norway). METHODS Thirty-one patients with 31 focal nodular hyperplasia nodules who underwent CEUS using Sonazoid between July 2012 and February 2015 were included in this study. After the microbubble contrast agent was injected, intermittent CEUS images were obtained during the following 4 phases: arterial (10-40 seconds), portal venous (60-90 seconds), delayed (3 minutes), and Kupffer (>10 minutes). Three abdominal radiologists retrospectively reviewed the images and achieved consensus for vascular (central artery, stellate vascularity, and centrifugal enhancement) and dynamic enhancement patterns during the late arterial, portal venous, delayed, and Kupffer phases. RESULTS The patients included 12 men and 19 women (age range, 21-82 years; mean, 47 years). The mean diameter of the lesions ± SD was 2.2 ± 0.9 cm (range, 1.0-4.0 cm). On CEUS, 24 of 31 lesions (77.4%) showed central artery and stellate vascularity in the early arterial phase, and 25 (80.6%) showed centrifugal enhancement. Twenty-six lesions (83.9%) were hyperechoic during the late arterial phase and showed hyperenhancement or isoenhancement during the serial dynamic phases. Kupffer-phase images indicated that only 2 lesions (6.5%) were hypoechoic compared with surrounding liver parenchyma, whereas 29 (93.5%) remained either hyperechoic (2 [6.5%]) or isoechoic (27 [87.1%]). CONCLUSIONS Contrast-enhanced US using Sonazoid for focal nodular hyperplasia showed typical vascular patterns of central artery vascularity, stellate vascularity, and centrifugal enhancement. Most cases were either hyperenhanced or isoenhanced on serial dynamic- and Kupffer-phase imaging. Based on these results, CEUS can provide useful information for noninvasive focal nodular hyperplasia diagnoses.
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Affiliation(s)
- Jongmee Lee
- Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Woo Kyoung Jeong
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hyo K Lim
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ah Young Kim
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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26
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Zarzour JG, Porter KK, Tchelepi H, Robbin ML. Contrast-enhanced ultrasound of benign liver lesions. Abdom Radiol (NY) 2018; 43:848-860. [PMID: 29167944 DOI: 10.1007/s00261-017-1402-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Liver lesions are often incidentally detected on ultrasound examination and may be incompletely characterized, requiring further imaging. Contrast-enhanced ultrasound (CEUS) was recently approved by the Food and Drug Administration in the United States for liver lesion characterization. CEUS has the ability to characterize focal liver lesions and has been shown to be superior to color Doppler and power Doppler ultrasound in the detection of tumor vascularity. Differentiating benign from malignant liver lesions is essential to characterizing liver lesions. The CEUS imaging characteristics of benign liver lesions are reviewed, including hepatic cysts, hemangiomas, focal fat, focal nodular hyperplasia, hepatocellular adenomas, abscesses, and traumatic lesions.
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Affiliation(s)
- Jessica G Zarzour
- Department of Radiology, University of Alabama at Birmingham, 619 19th Street South, JTN 338, Birmingham, AL, 35294, USA.
| | - Kristin K Porter
- Department of Radiology, University of Alabama at Birmingham, 619 19th Street South, JTN 338, Birmingham, AL, 35294, USA
| | - Hisham Tchelepi
- Department of Radiology, University of Southern California, Los Angeles, USA
| | - Michelle L Robbin
- Department of Radiology, University of Alabama at Birmingham, 619 19th Street South, JTN 338, Birmingham, AL, 35294, USA
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27
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Ronot M, Cuccioli F, Dioguardi Burgio M, Vullierme MP, Hentic O, Ruszniewski P, d’Assignies G, Vilgrain V. Neuroendocrine liver metastases: Vascular patterns on triple-phase MDCT are indicative of primary tumour location. Eur J Radiol 2017; 89:156-162. [DOI: 10.1016/j.ejrad.2017.02.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 01/25/2017] [Accepted: 02/04/2017] [Indexed: 10/20/2022]
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28
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Tselikas L, Pigneur F, Roux M, Baranes L, Costentin C, Roche V, Calderaro J, Herin E, Laurent A, Zafrani E, Azoulay D, Mallat A, Rahmouni A, Luciani A. Impact of hepatobiliary phase liver MRI versus Contrast-Enhanced Ultrasound after an inconclusive extracellular gadolinium-based contrast-enhanced MRI for the diagnosis of benign hepatocellular tumors. Abdom Radiol (NY) 2017; 42:825-832. [PMID: 27704147 DOI: 10.1007/s00261-016-0921-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE To compare the added values of hepatobiliary phase (HBP) MRI and contrast-enhanced ultrasound (CEUS) in addition to inconclusive extracellular gadolinium-based contrast-enhanced MRI (CE-MRI) to characterize benign hepatocellular tumors (BHT). METHODS Eighty-three BHT-46 focal nodular hyperplasia (FNH) and 37 hepatocellular adenomas (HCA)-with inconclusive CE-MRI in 54 patients (43 women and 11 men, mean age 42 years old ± 14.8) were retrospectively analyzed. All patients underwent both HBP-MRI and CEUS. Two radiologists independently reviewed 2 sets of images, SET-1: CE-MRI and HBP-MRI; SET-2: CE-MRI and CEUS, and classified lesions as "definite FNH," "possible FNH," or "definitely not FNH." Sensitivity (Se) and specificity (Spe) were compared between the two sets; subgroup analyses according to the lesion's size were performed. RESULTS Regardless of lesion size, the respective Se and Spe of both datasets were not statistically different (95.7 and 100% vs. 76.1 and 94.6% for set-1 and -2 respectively; p = 0.18). For lesions larger than 35 mm, although both sets had similar specificity (100%), sensitivity was higher for SET-1 (100% vs. 40%); p = 0.04. Tumor classifications using SET-1 and SET-2 could have changed patient management in 35/54 (64.8%) and 33/54 (61.1%) of all patients, respectively. CONCLUSIONS HBP-MRI or CEUS should be performed after an inconclusive CE-MRI. Both can change patient management by avoiding unnecessary biopsy or surveillance. The use of HBP-MRI should be advocated over CEUS in larger (>35 mm) lesions.
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Affiliation(s)
- Lambros Tselikas
- Imagerie Medicale, CHU Henri Mondor, AP-HP, Groupe Henri Mondor Albert Chenevier, 51 avenue du Marechal de Lattre de Tassigny, 94010, Créteil, France
| | - Frederic Pigneur
- Imagerie Medicale, CHU Henri Mondor, AP-HP, Groupe Henri Mondor Albert Chenevier, 51 avenue du Marechal de Lattre de Tassigny, 94010, Créteil, France
| | - Marion Roux
- Imagerie Medicale, CHU Henri Mondor, AP-HP, Groupe Henri Mondor Albert Chenevier, 51 avenue du Marechal de Lattre de Tassigny, 94010, Créteil, France
| | - Laurence Baranes
- Imagerie Medicale, CHU Henri Mondor, AP-HP, Groupe Henri Mondor Albert Chenevier, 51 avenue du Marechal de Lattre de Tassigny, 94010, Créteil, France
| | - Charlotte Costentin
- Hepatology Department, AP-HP, Groupe Henri Mondor Albert Chenevier, Créteil, 94010, France
| | - Vincent Roche
- Imagerie Medicale, CHU Henri Mondor, AP-HP, Groupe Henri Mondor Albert Chenevier, 51 avenue du Marechal de Lattre de Tassigny, 94010, Créteil, France
| | - Julien Calderaro
- Department of Pathology, AP-HP, Groupe Henri Mondor Albert Chenevier, Créteil, 94010, France
- Universite Paris Est Creteil, Créteil, 94010, France
| | - Edouard Herin
- Imagerie Medicale, CHU Henri Mondor, AP-HP, Groupe Henri Mondor Albert Chenevier, 51 avenue du Marechal de Lattre de Tassigny, 94010, Créteil, France
| | - Alexis Laurent
- Universite Paris Est Creteil, Créteil, 94010, France
- Liver Surgery Department, AP-HP, Groupe Henri Mondor Albert Chenevier, Créteil, 94010, France
- INSERM IMRB Unit U 955, Equipe 18, Créteil, 94010, France
| | - Elie Zafrani
- Department of Pathology, AP-HP, Groupe Henri Mondor Albert Chenevier, Créteil, 94010, France
| | - Daniel Azoulay
- Universite Paris Est Creteil, Créteil, 94010, France
- Liver Surgery Department, AP-HP, Groupe Henri Mondor Albert Chenevier, Créteil, 94010, France
| | - Ariane Mallat
- Hepatology Department, AP-HP, Groupe Henri Mondor Albert Chenevier, Créteil, 94010, France
- Universite Paris Est Creteil, Créteil, 94010, France
| | - Alain Rahmouni
- Imagerie Medicale, CHU Henri Mondor, AP-HP, Groupe Henri Mondor Albert Chenevier, 51 avenue du Marechal de Lattre de Tassigny, 94010, Créteil, France
- Universite Paris Est Creteil, Créteil, 94010, France
| | - Alain Luciani
- Imagerie Medicale, CHU Henri Mondor, AP-HP, Groupe Henri Mondor Albert Chenevier, 51 avenue du Marechal de Lattre de Tassigny, 94010, Créteil, France.
- Universite Paris Est Creteil, Créteil, 94010, France.
- INSERM IMRB Unit U 955, Equipe 18, Créteil, 94010, France.
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Zhang HT, Gao XY, Xu QS, Chen YT, Song YP, Yao ZW. Evaluation of the characteristics of hepatic focal nodular hyperplasia: correlation between dynamic contrast-enhanced multislice computed tomography and pathological findings. Onco Targets Ther 2016; 9:5217-24. [PMID: 27578988 PMCID: PMC5001658 DOI: 10.2147/ott.s103647] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Objective To evaluate the characteristics of enhancement of focal nodular hyperplasia (FNH) of the liver by analyzing the dynamic contrast-enhanced multislice computed tomography (MSCT) features and correlating them with pathological findings. Patients and methods Nine males and 16 females with pathologically confirmed FNH and complete preoperative contrast-enhanced MSCT data were recruited for this study. The imaging features of FNH on the pre- and postcontrast MSCT were analyzed by two experienced radiologists by consensus. Results Pathology showed central scars and abnormal blood vessels in 17 and 21 of 25 lesions, respectively, while MSCT with multiphase enhancement showed central scars in eight of the 17 lesions (47.1%) and abnormal arteries or draining veins in 13 of the 21 lesions (61.9%). Furthermore, abnormal draining veins in five lesions were found to be diagnostic, which is another important finding. Conclusion Multiphase scanning can provide the panorama of FNH lesions and reveal their enhancement patterns and pathological characteristics. Abnormal blood vessels within or around the lesion are demonstrated more often than central scar, and both should be observed for FNH diagnosis.
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Affiliation(s)
| | - Xin-Yi Gao
- Department of Radiology, Affiliated Huashan Hospital of Fudan University, Shanghai
| | - Qin-Sha Xu
- Department of Radiology, Jiangwan Hospital
| | - Yu-Tang Chen
- Department of Radiology, Zhejiang Province Tumor Hospital, Hangzhou, People's Republic of China
| | | | - Zhen-Wei Yao
- Department of Radiology, Affiliated Huashan Hospital of Fudan University, Shanghai
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30
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Dioguardi Burgio M, Ronot M, Salvaggio G, Vilgrain V, Brancatelli G. Imaging of Hepatic Focal Nodular Hyperplasia: Pictorial Review and Diagnostic Strategy. Semin Ultrasound CT MR 2016; 37:511-524. [PMID: 27986170 DOI: 10.1053/j.sult.2016.08.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Focal nodular hyperplasia (FNH) is the second most common benign solid liver lesion after hemangioma, occurring more frequently in young women. The prime differential diagnoses include hepatocellular adenoma, hepatocellular carcinoma, and hypervascular metastasis. As the management of FNH is typically conservative, imaging plays a key role in diagnostic pathway, and misdiagnosis may have a major clinical effect. In this article, we describe the ultrasound, computed tomography, and magnetic resonance imaging features of FNH, underlining the importance of typical radiological features that allow a specific noninvasive diagnosis. We present a large spectrum of a typical imaging findings that FNH may present and discuss the up-to-date diagnostic strategy.
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Affiliation(s)
- Marco Dioguardi Burgio
- Radiology Department, Beaujon Hospital, University Hospitals Paris Nord Val de Seine, Assistance Publique-Hôpitaux de Paris, APHP, Clichy, France
| | - Maxime Ronot
- Radiology Department, Beaujon Hospital, University Hospitals Paris Nord Val de Seine, Assistance Publique-Hôpitaux de Paris, APHP, Clichy, France; University Paris Diderot, Sorbonne Paris Cité, INSERM UMR 1149, Paris, France
| | - Giuseppe Salvaggio
- Section of Radiological Sciences, Department of Biopathology and Medical Biotechnologies Di.Bi.Med., University of Palermo, Palermo, Italy
| | - Valérie Vilgrain
- Radiology Department, Beaujon Hospital, University Hospitals Paris Nord Val de Seine, Assistance Publique-Hôpitaux de Paris, APHP, Clichy, France; University Paris Diderot, Sorbonne Paris Cité, INSERM UMR 1149, Paris, France
| | - Giuseppe Brancatelli
- Section of Radiological Sciences, Department of Biopathology and Medical Biotechnologies Di.Bi.Med., University of Palermo, Palermo, Italy.
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31
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Wang W, Liu JY, Yang Z, Wang YF, Shen SL, Yi FL, Huang Y, Xu EJ, Xie XY, Lu MD, Wang Z, Chen LD. Hepatocellular adenoma: comparison between real-time contrast-enhanced ultrasound and dynamic computed tomography. SPRINGERPLUS 2016; 5:951. [PMID: 27386395 PMCID: PMC4929102 DOI: 10.1186/s40064-016-2406-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 05/24/2016] [Indexed: 12/14/2022]
Abstract
Purpose To investigate and compare the contrast-enhanced ultrasound (CEUS) features of histologically proven HCA with those of contrast-enhanced computed tomography (CECT). Methods Eighteen patients with proven hepatic adenoma by pathology were retrospectively selected from the CEUS database. Fourteen of them had undergone liver CECT exams. The basic features on unenhanced imaging and the enhancement level and specific features on contrast-enhanced imaging were retrospectively analyzed, and the differences between CEUS and CECT were compared. Results All the HCAs showed hyper-enhancement in the arterial phase. During the portal and late phases, 12 HCAs (12/18, 66.7 %) on CEUS and 11 (11/14, 78.6 %) on CT showed washout. On CEUS, 10 (10/18, 55.5 %) showed centripetal filling in the arterial phase and persistent peripheral rim enhancement. Five of them (61.1 %, 11/18) showed delayed central washout in the portal or late phase. However, on CECT, 2 (14.3 %, 2/14) and 4 (28.6 %, 4/14) HCAs showed persistent enhancement of the peripheral rim and central non-enhancing hemorrhage areas, respectively. Conclusions Compared with dynamic CT, CEUS was superior at characterizing specific dynamic features. Considering that it is radiation-free, readily availability and easy to use, CEUS is suggested as the first line imaging tool to diagnose HCA.
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Affiliation(s)
- Wei Wang
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Jin-Ya Liu
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Zheng Yang
- Department of Pathology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yue-Feng Wang
- Department of Pathology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Shun-Li Shen
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Feng-Lian Yi
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yang Huang
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Er-Jiao Xu
- Department of Radiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.,Department of Medical Ultrasonics, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Xiao-Yan Xie
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Ming-De Lu
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Zhu Wang
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Li-Da Chen
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
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Focal Lesions in Fatty Liver: If Quantitative Analysis Facilitates the Differentiation of Atypical Benign from Malignant Lesions. Sci Rep 2016; 6:18640. [PMID: 26725923 PMCID: PMC4698663 DOI: 10.1038/srep18640] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 11/23/2015] [Indexed: 12/27/2022] Open
Abstract
To evaluate the diagnostic performance of quantitative analysis as an adjunctive diagnostic tool to contrast-enhanced ultrasound (US) for the differentiation of atypical benign focal liver lesions (FLLs) from malignancies in fatty liver. Twenty-seven benign FLLs and fifty-six malignant FLLs that appeared hyper-enhanced during the arterial phase with washout in the portal or late phase in fatty liver were analyzed. Chi-square tests and logistic regression were applied to identify the specific features. Three sets of criteria were assigned: 1) all FLLs subjected to routine contrast-enhanced US; 2) all FLLs subjected to quantification analysis and contrast-enhanced US; and 3) parts of FLLs that could not be diagnosed using contrast-enhanced US (n = 66, 75.9%) but instead were diagnosed using parametric features. The sensitivity, specificity, accuracy and area under the receiver operating characteristic curve (AUC) of the three sets of criteria were analyzed. The AUCs of the criterion set 2 were significantly higher than those of criterion set 1 (0.904 versus 0.792, P = 0.008). Criterion set 3 showed a relatively high sensitivity (90.2%) with a relatively high AUC (0.845). The quantification analysis offers improved diagnostic performance for the differential identification of atypical benign FLLs from malignancies in fatty liver.
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Li R, Tang CL, Zhang Y, Ma KS, Zhang XH, Guo DY, Yan XC. Diagnosis of Hepatic Angiomyolipoma by Combination of Baseline and Contrast-Enhanced Ultrasound--A Prospective Study in Non-Cirrhotic Patients. PLoS One 2015; 10:e0132290. [PMID: 26147859 PMCID: PMC4492985 DOI: 10.1371/journal.pone.0132290] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 06/11/2015] [Indexed: 12/14/2022] Open
Abstract
Objectives Hepatic angiomyolipoma (HAML) is a rare, benign mesenchymal tumor of the liver and its diagnosis has been considered challenging. The aim of this study was to investigate prospectively the diagnostic efficacy of the incorporation of both baseline ultrasound (US) and contrast-enhanced ultrasound (CEUS) features of HAML in patients without cirrhosis. Materials and Methods Consecutive 1748 non-cirrhotic patients with focal liver lesions (FLLs) were prospectively enrolled. Baseline US and CEUS were performed before resection or biopsy. Ultrasound imaging diagnosis of FLLs was compared with the pathological results. Results Final diagnoses were established in 41 patients with HAML (2.3%) with normal alpha fetal protein (AFP) level and in 1707 patients with FLL other than HAML. Diagnostic criteria for HAML was based on the combination of baseline US and CEUS appearance of the nodule: (1) Well-defined, marked hyper-echoic nodule without surrounding hypo-echoic halo on baseline US; (2) hyper-enhancement in the arterial phase (exclude initial peripheral nodular enhancement and spoke-wheel arteries) and remains hyper-enhancement or iso-enhancement in the late phase. The diagnostic criteria were fulfilled in 31 HAMLs, 1 hepatocellular adenoma and 1 hemangioma. Ten HAMLs were misdiagnosed as other liver tumors because they did not meet the diagnostic criteria mentioned above and consequently yielded a sensitivity, specificity, positive predictive values, negative predictive values and Youden index of 75.61%, 99.88%, 93.94%, 99.42%, and 0.75 respectively. Conclusion The combination of baseline US and CEUS may lead to the correct diagnosis noninvasively in the majority of HAMLs in non-cirrhotic patients with normal AFP level.
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Affiliation(s)
- Rui Li
- Dept. Hepato-biliary-Pancreatic Surgery, Southwest Hospital Affiliated to Third Military Medical University, Chongqing, China
- * E-mail:
| | - Chun-Lin Tang
- Dept. Ultrasound, Southwest Hospital Affiliated to Third Military Medical University, Chongqing, China
| | - Yi Zhang
- Dept. Ultrasound, Southwest Hospital Affiliated to Third Military Medical University, Chongqing, China
| | - Kuan-sheng Ma
- Dept. Hepato-biliary-Pancreatic Surgery, Southwest Hospital Affiliated to Third Military Medical University, Chongqing, China
| | - Xiao-Hang Zhang
- Dept. Ultrasound, Southwest Hospital Affiliated to Third Military Medical University, Chongqing, China
| | - De-Yu Guo
- Dept. Pathology, Southwest Hospital Affiliated to Third Military Medical University, Chongqing, China
| | - Xiao-Chu Yan
- Dept. Pathology, Southwest Hospital Affiliated to Third Military Medical University, Chongqing, China
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Kong WT, Wang WP, Huang BJ, Ding H, Mao F, Si Q. Contrast-enhanced ultrasound in combination with color Doppler ultrasound can improve the diagnostic performance of focal nodular hyperplasia and hepatocellular adenoma. ULTRASOUND IN MEDICINE & BIOLOGY 2015; 41:944-951. [PMID: 25701530 DOI: 10.1016/j.ultrasmedbio.2014.11.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 08/02/2014] [Accepted: 11/13/2014] [Indexed: 06/04/2023]
Abstract
The aim of our study was to evaluate the value of combining color Doppler ultrasound (CDUS) with contrast-enhanced ultrasound (CEUS) in identifying and comparing features of focal nodular hyperplasia (FNH) and hepatocellular adenoma (HCA). Thirty-eight patients with FNH (n = 28) or HCA (n = 10), whose diagnoses were later confirmed by pathology, were examined with conventional ultrasonography and CEUS between 2010 and 2013. Two doctors blinded to the pathology results independently reviewed the conventional ultrasound and CEUS images and then reached a consensus through discussion. The following parameters evaluated for all lesions included vascularity pattern on CDUS or CEUS, enhancement characteristics on CEUS and the presence of a central scar. Statistical analysis was performed with the independent sample t-test and Fisher exact test. On CDUS, FNH was characterized by the presence of abundant blood flow signals exhibiting dendritic (53.6%, 15/28) and spoke-wheel (28.6%, 8/28) patterns, whereas blood flow signal of HCA was slightly less than FNH and often showed subcapsular short rod-like (50%, 5/10) appearance. On CEUS, the most common arterial enhancement pattern was centrifugal or homogeneous enhancement in FNH (both, 12/28, 42.9%) and homogeneous enhancement in HCA (6/10, 60%). Spoke-wheel arteries, feeding artery and central scar were detected in 5 (17.9%), 8 (28.6%) and 5 (17.9%) of 28 FNHs. Hypo-echogenic pattern during delayed phase was more common in HCA (60%, 6/10) than in FNH (3/28, 10.7%) (p = 0.010). A total of 25 (25/38, 65.8%) lesions were correctly assessed using CDUS in combination with CEUS, whereas the number decreased to 15 (15/38, 39.5%) when CDUS was used alone (p = 0.038). The areas under the ROC curves before and after CEUS administration were 0.768 and 0.879, respectively. In conclusion, CEUS in combination with CDUS improve the diagnostic performance of FNH and HCA. Blood signal of HCA was less than FNH on CDUS. The differences of enhancement pattern during arterial phase and echogenicity during delayed phase may contribute to the differentiation of these lesions.
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Affiliation(s)
- Wen-Tao Kong
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wen-Ping Wang
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China.
| | - Bei-Jian Huang
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hong Ding
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Feng Mao
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Qin Si
- Department of Ultrasound, 81st Hospital of Chinese PLA, Nanjing Jiangsu, China
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Li W, Wang W, Liu GJ, Chen LD, Wang Z, Huang Y, Liu JY, Xie XY, Lu MD. Differentiation of Atypical Hepatocellular Carcinoma from Focal Nodular Hyperplasia: Diagnostic Performance of Contrast-enhanced US and Microflow Imaging. Radiology 2015; 275:870-9. [PMID: 25584708 DOI: 10.1148/radiol.14140911] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE To evaluate diagnostic performance of contrast-enhanced (CE) ultrasonography (US) and microflow (MF) imaging in differentiation of atypical hepatocellular carcinoma (HCC) from focal nodular hyperplasia (FNH). MATERIALS AND METHODS Institutional review board approval was obtained, and informed consent was waived. A total of 103 patients (mean age, 43.9 years; age range, 17-75 years) were included; 38 patients with HCC and 65 with FNH underwent CE US, and vascular architecture pattern (VAP) and arrival time parametric (ATP) images were analyzed. Resident and staff radiologists independently and retrospectively reviewed CE US, VAP, and ATP images. χ(2) test and logistic regression analysis were applied to identify specific features of FNH or HCC on CE US and MF images. To compare diagnostic performance of CE US with or without MF imaging, four sets of criteria were assigned: (a) routine CE US alone, (b) VAP and CE US, (c) ATP imaging and CE US, and (d) all three methods in combination. Sensitivity, specificity, accuracy, and area under the receiver operating characteristic curve (AUC) of resident and staff radiologists were analyzed. Cohen κ statistic was used to assess agreement of CE US and MF imaging features between staff and resident radiologists. RESULTS MF imaging offered significant improvements over most detection rates achieved with routine CE US signs in both groups. For staff radiologists, AUCs from criteria sets 3 (AUC = 0.873, P < .05) and 4 (AUC = 0.887, P < .05) were significantly higher than AUC from criteria set 1 (AUC = 0.835). For resident radiologists, specificity (71% and 69% vs 25%, P < .01) and accuracy (78% and 79% vs 50%, P < .01) of criteria sets 3 and 4 were significantly higher than those of criteria set 1. Moreover, AUCs for criteria sets 2 (AUC = 0.728, P < .05), 3 (AUC = 0.823, P < .01), and 4 (AUC = 0.857, P < .01) were significantly higher than those for criteria set 1 (AUC = 0.667). CONCLUSION When compared with routine CE US, MF imaging can more effectively depict specific features and offers improved diagnostic performance in the differentiation of atypical HCC from FNH, especially when used by resident radiologists. Online supplemental material is available for this article.
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Affiliation(s)
- Wei Li
- From the Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound (W.L., W.W., G.J.L., L.D.C., Z.W., Y.H., J.Y.L., X.Y.X., M.D.L.), and Department of Hepatobiliary Surgery (M.D.L.), The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Road 2, Guangzhou 510080, China
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Ronot M, Vilgrain V. Imaging of benign hepatocellular lesions: current concepts and recent updates. Clin Res Hepatol Gastroenterol 2014; 38:681-8. [PMID: 24636468 DOI: 10.1016/j.clinre.2014.01.014] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 01/27/2014] [Indexed: 02/04/2023]
Abstract
Focal nodular hyperplasia (FNH) and hepatocellular adenoma (HCA) are a variety of solid lesions mostly found in the absence of underlying chronic liver disease in young patients. HCA is no longer to be considered as a unique lesion but as a recollection of different entities sharing common points but most of all separated by different typical morphological aspects. Accurate diagnosis is of clinical importance as the management is most of the time conservative for FNH, whereas HCAs expose patients to hemorrhage and malignant transformation, and may lead to a more invasive treatment, mainly surgical resection. Moreover, the different HCA subtypes expose to different risks of complication. The best imaging techniques for the differentiation between FNH and HCAs and for the subtyping of HCAs are contrast-enhanced ultrasound (CEUS) and magnetic resonance imaging (MRI), as specific combinations of imaging features have been associated with the different lesions. They should be considered as complementary examinations. Atypical or multiple lesions, lesions containing fat or presence of an associated steatosis represent diagnostic challenges. Recently, MR hepatospecific contrast agents have been shown to be useful. Emergent elastography techniques might also be helpful in the near future. Biopsy should always be performed in case of uncertain diagnosis to reach a final diagnosis and avoid unnecessary invasive treatment.
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Affiliation(s)
- Maxime Ronot
- Department of Radiology, Hôpital Beaujon, Assistance Publique-Hôpitaux de Paris, AP-HP, 100, boulevard du Général-Leclerc, 92110 Clichy, France; INSERM Centre de recherche Biomédicale Bichat-Beaujon, université Paris-Diderot, Sorbonne-Paris-Cité, CRB3 U773, 75018 Paris, France.
| | - Valérie Vilgrain
- Department of Radiology, Hôpital Beaujon, Assistance Publique-Hôpitaux de Paris, AP-HP, 100, boulevard du Général-Leclerc, 92110 Clichy, France; INSERM Centre de recherche Biomédicale Bichat-Beaujon, université Paris-Diderot, Sorbonne-Paris-Cité, CRB3 U773, 75018 Paris, France
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Differentiation of focal nodular hyperplasia from hepatocellular adenomas with low-mechanical-index contrast-enhanced sonography (CEUS): effect of size on diagnostic confidence. Eur Radiol 2014; 25:186-95. [PMID: 25120205 DOI: 10.1007/s00330-014-3363-y] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2014] [Revised: 06/15/2014] [Accepted: 07/18/2014] [Indexed: 02/07/2023]
Abstract
PURPOSE The purpose of this study was to assess the diagnostic performance of contrast-enhanced sonography (CEUS) for the differentiation of focal nodular hyperplasia (FNH) from hepatocellular adenoma (HCA) according to lesion size. MATERIALS AND METHODS Forty patients with a definite diagnosis of FNH or HCA who underwent CEUS were included in this institutional review board (IRB)-approved study. A total of 43 FNHs and 20 HCAs, including 15 inflammatory HCAs and five unclassified HCAs, were analysed. Two radiologists reviewed the diagnostic CEUS parameters separately and in consensus, including the presence or absence of centrifugal filling and central vessels. The sensitivity (Se), specificity (Sp), and inter-observer confidence (Kappa) of CEUS diagnostic parameters were assessed. RESULTS Inter-observer agreement of CEUS for FNH diagnosis was high (kappa = 0.81) with an overall Se of 67.4% [29/43 (CI 95%: 51.4-80.1 %)] and an Sp of 100% [20/20 (CI 95%: 81-100%)]. Significantly higher Se figures were found for lesions ≤ 35 mm than for lesions > 35 mm [respectively, 93 % (28/30) (CI 95%: 77.6-99.2) vs. 7.7% (1/13) (CI 95%: 0.2-36%), p = 0.002] with unchanged specificity. CONCLUSION CEUS is highly specific for the diagnosis of FNH, with very good inter-observer agreement, whatever the size, but its sensitivity is significantly reduced in diagnosing lesions larger than 35 mm. KEY POINTS • CEUS is highly specific for the diagnosis of FNH, regardless of lesion size • CEUS shows reduced sensitivity in diagnosing FNH lesions larger than 35 mm • The filling patterns of hepatocellular adenomas are not affected by lesion size.
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Contrast-enhanced ultrasound of focal nodular hyperplasia: a matter of size. Eur Radiol 2014; 24:2561-71. [PMID: 24962831 DOI: 10.1007/s00330-014-3280-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 05/26/2014] [Accepted: 06/06/2014] [Indexed: 12/17/2022]
Abstract
OBJECTIVES To assess the contrast-enhanced ultrasound (CEUS) frequencies of centrifugal enhancement, spoke-wheel sign and central scar in focal nodular hyperplasia (FNH) as a function of lesion size. METHODS Ninety-four FNHs were retrospectively reviewed to assess their largest diameter and enhancement pattern, including centrifugal enhancement from one central artery, spoke-wheel sign, diffuse or centripetal enhancement, central scar and late-phase washout. RESULTS Mean FNH-lesion size was 3.7 ± 2.1 cm. Only 43.6 % of FNHs had centrifugal enhancement, with a spoke-wheel pattern (23.4 %) or without (20.2 %), while 56.4 % showed diffuse or centripetal enhancement. Centrifugal enhancement was observed in 73.9 % of FNHs ≤3.1 cm and 14.6 % of FNHs >3.1 cm (P < 10(-4)). Size and frequency of centrifugal enhancement were negatively correlated (r = -0.57, P < 10(-4)). The spoke-wheel pattern was also seen more frequently in smaller (37 %) than in larger FNHs (10.4 %) (P < 10(-3)). Late-phase washout was described in 5.3 % of FNHs and was not size-dependent. Lesions with a central scar were larger than those without, respectively, 5.7 ± 1.7 and 3.6 ± 2.0 cm (P = 0.012). CONCLUSIONS Typical centrifugal enhancement yielding a confident FNH diagnosis is seen significantly more frequently when the lesion is ≤3.1 cm. KEY POINTS • CEUS yields confident diagnoses of FNHs ≤3.1 cm • The larger the FNH, the lower the diagnostic sensitivity of CEUS • Final diagnosis of FNHs >3.1 cm should be obtained with MRI not CEUS.
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Liu LP, Yu XL, Liang P, Dong BW. Characterization of primary hepatic carcinosarcoma by contrast-enhanced ultrasonography: A case report. World J Gastroenterol 2014; 20:1630-1634. [PMID: 24587642 PMCID: PMC3925875 DOI: 10.3748/wjg.v20.i6.1630] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Revised: 11/08/2013] [Accepted: 12/04/2013] [Indexed: 02/06/2023] Open
Abstract
Primary hepatic carcinosarcoma is a rare tumor and is comprised of a mixture of carcinomatous and sarcomatous elements. We present a case of primary carcinosarcoma of the liver in a 59-year-old woman, which was confirmed by pathology following surgical resection. Using contrast-enhanced ultrasonography, the tumor showed peripheral nodular hyperenhancement in the arterial phase with two feeding arterial vessels and a large internal non-enhancing portion in the center. The peripheral nodular portion of the tumor showed hypoenhancement in the later phase.
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