In MVI negative group, the minimum values of PVP, AEF and their related parameters (PVP, rPVP and AEF,rAEF) were higher than those in MVI positive group. Preoperative prediction of microvascular invasion in hepatocellular cancer: A radiomics model using Gd-EOB-DTPA-enhanced MRI. The 25th percentile of HF had the highest sensitivity of 94.4%. Therefore, accurate preoperative differentiation of IMCC from HCC is avital clinical issue for overcoming such cancers. IMCC in cirrhotic patients may be hypervascular on the arterial phase images due to the increasing density of the arteries and microvessels in cirrhosis and precirrhotic liver, thus, exhibiting overlapping phenotypes with the appearance of typical HCC15,16. The perfusion parameters are shown in Tables 2, 3 and 4. Department of Radiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, No.247, Beiyuan Road, Tianqiao District, Jinan, 250033, Shandong, China, Department of Radiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China, Jinan Blood Center, Jinan, 250001, Shandong, China, You can also search for this author in Malhi H, Grant EG, Duddalwar V. Contrast-Enhanced Ultrasound of the Liver and Kidney. Triphasic CT, alpha fetoprotein and biopsy were the essential methods for diagnosis. Consent for CT scanning and surgery had been obtained from all participants in the study. 3. Methods: Totally, 52 patients with HCC were enrolled in this retrospective study and underwent triple-phase enhanced CT imaging. By convenient sampling, 45 patients found to have focal tumoral liver lesions . To obtain Boas, F. E. et al. J. Gastroenterol. Transverse computed tomography (CT) images of a dog with hepatocellular carcinoma. Zhao, Y. J. et al. Tyson, G. L. & El-Serag, H. B. PVP images showed hyperperfusion from the peripheral to the central part of the tumor. PubMed All athours reviewed the manuscript. J. Radiol. Variable appearance depending on the individual lesion, size, and echogenicity of background liver. Article 181, 819827 (2003). In conclusion, in this paper, we proposed liver perfusion parameters and corresponding histogram parameters for classifying two types of liver cancer, namely HCC and IMCC, from traditional triphasic CT scans. Bialecki ES, Di Bisceglie AM. J. Magn. Objective: To evaluate the role of biphasic contrast-enhanced helical CT including Hepatic Arterial Phase (HAP) imaging with Portal Venous Phase (PVP) imaging, in the detection and characterization of hepatocellular carcinomas. In the meantime, to ensure continued support, we are displaying the site without styles AJR Am. The value of AEF in MVI negative patient was significantly higher than in MVI positive patient. Ann. And statistically significant changes were not found in all PVP related parameters, but only in the minimum and smaller values. Surg. 2006 Jul 24 [Updated 2014 Jul 17]. Kim, S. H., Kamaya, A. Differentiation Between Hepatocellular Carcinoma and Dysplastic Nodules. Liver perfusion computed tomography (PCT) could be used to acquire precise blood flow values of liver diseases and can quantitatively measure perfusion parameters. McGraw-Hill Medical. Lee, T. Y. et al. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. J. Comput. https://doi.org/10.1159/000504193 (2020). Reference article, Radiopaedia.org (Accessed on 05 Jul 2023) https://doi.org/10.53347/rID-1442, {"containerId":"expandableQuestionsContainer","displayRelatedArticles":true,"displayNextQuestion":true,"displaySkipQuestion":true,"articleId":1442,"questionManager":null,"mcqUrl":"https://radiopaedia.org/articles/hepatocellular-carcinoma/questions/2624?lang=us"}. https://doi.org/10.1038/s41598-023-35913-y, DOI: https://doi.org/10.1038/s41598-023-35913-y. Ng, F., Ganeshan, B., Kozarski, R., Miles, K. A. Value of perfusion parameters histogram analysis of triphasic CT in differentiating intrahepatic mass forming cholangiocarcinoma from hepatocellular carcinoma, https://doi.org/10.1038/s41598-021-02667-4. There are several substitute staging systems used in guiding therapy for hepatocellular carcinoma (see hepatocellular carcinoma staging)18. Clin. Internet Explorer). 30. & Gores, G. J. Cholangiocarcinoma: Advances in pathogenesis, diagnosis, and treatment. 70(6), 11331144. AEF (including AEF and rAEF) and the corresponding histogram parameters derived from triphasic CT scans provided useful value and facilitated the accurate discrimination between IMCCs and HCCs. The origin of hepatocellular carcinomas is believed to be related to repeated cycles of necrosis and regeneration, irrespective of the cause. Updated: Dec 07, 2022 Author: Luca Cicalese, MD, FACS; Chief Editor: John Geibel, MD, MSc, DSc, AGAF more. 1. Receiver operating characteristic (ROC) curve was used to evaluate the performance. Imaging. The 10th percentiles of the AEF and rAEF exhibited the best differential power for preventing the misidentification of IMCC as HCC. Recently according to American Association of the Study of Liver Disease (AASLD) update in 2010: the diagnosis of HCC can be made for a focal hepatic lesion 1 cm or more with arterial hypervascularity and venous or delayed washout in either 4 phase MSCT or dynamic contrast-enhanced MRI and this actually preclude the need for biopsy, Alpha-fetoprotein is neither sensitive nor specific, Diffusion-weighted MRI can be used as a screening tool for HCC, particularly in cirrhotic patients with renal insufficiency. MRI of small intrahepatic mass-forming cholangiocarcinoma and atypical small hepatocellular carcinoma (3 cm) with cirrhosis and chronic viral hepatitis: a comparative study. Selective internal radiation therapy (SIRT): a new modality for treating patients with colorectal liver metastases. However, the 50th percentile of rAEF had a highest specificity of 82.4%. There were no statistical differences in the other perfusion parameters between IMCCs and HCCs (P>0.05). The highest prevalence occurs in Asia,in regions where chronic hepatitis B infection is endemic, and this accounts for >80% of hepatocellular carcinoma cases worldwide. The arterial phase CT scan was performed at 3035s after the injection of contrast agent. Clin. Methods: The study included 40 patients (M = 26, F = 14) with histopathologically proven HCC. Invest. Diagnostic sensitivity of hepatocellular carcinoma imaging and its More and more studies have shown that liver cancer with microvascular invasion requires a larger resection range and a wider ablation margin, and should be more cautiously used as a candidate for liver transplantation. The remarkable ability of the liver to regenerate means that up to two-thirds of the liver can be resected 19. And when HCC was identified on triphasic CT, it was positive in 85% of patients. 103(7), 17161720 (2008). Suspected liver lesions such as hepatocellular carcinoma, focal nodular hyperplasia, adenoma, and hemangioma. Lang, H. et al. Computed tomography (CT) and magnetic resonance imaging (MRI), especially gadoxetate-enhanced MRI, have significant potential in predicting MVI. Kim, S. A. et al. Xu, X. et al. Volumetric apparent diffusion coefficient histogram analysis in differentiating intrahepatic mass-forming cholangiocarcinoma from hepatocellular carcinoma. The liver is enlarged and cirrhotic. Our study results may indicate that there were significant differences in the heterogeneity between IMCCs and HCCs; a finding that was consistent with the previous study by Zou et al.36 that indicated that IMCC was more heterogeneous than HCC. What is more, CT-enhanced scan can show the morphology, hemodynamic changes, surrounding tissue structure, and tumor metastasis of gallbladder carcinoma, so as to evaluate the lesion stage. However, one limitation of MVI is that it can only be diagnosed pathologically under the microscope after surgery. Case study, Radiopaedia.org (Accessed on 05 Jul 2023) https://doi.org/10.53347/rID-29243. Characterization of hepatocellular carcinomas with triphasic CT and Mayr, N. A. et al. AJR Am. 42, 15761583. All of the parameters mentioned above were significantly higher for HCCs than for IMCCs, which may indicate a relatively high hypervascularity in HCCs compared to IMCCs, and may also be indicative of the different pathological components of the tumor. Google Scholar. Shaib, Y. H., El-Serag, H. B., Davila, J. 1. J. Hepatol. Typically: small focal hepatocellular carcinoma appears hypoechoic compared with normal liver, larger lesions are heterogeneous due to fibrosis, fatty change, necrosis and calcification 12, a peripheral halo of hypoechogenicity may be seen with focal fatty sparing (see the discussion below on the CT session), diffuse hepatocellular carcinoma may be difficult to identify or distinguish from background cirrhosis, decreased echogenicity relative to background liver ("washout"), variants have been described with arterial phase hypovascularity with no enhancement or arterial enhancement with no "washout". Ryu, T. et al. Changes of tumor perfusion caused by MVI is a very complex process. 1. J. Hepatol. Seattle (WA): University of Washington, Seattle; 1993-2016. Surg. 2004;6 (3): 133-9. The optimal parameters for differentiation were also determined. Radiol. Zhao, F., Pang, G., Li, X. et al. Chin. Patient characteristics are summarized in Table 1. The authors declare no competing interests. Kummar S, Shafi NQ. AEF, which reflects the HAP, could also be used to predict MVI26. Patterns of appearance and risk of misdiagnosis of intrahepatic cholangiocarcinoma in cirrhosis at contrast enhanced ultrasound. Lippincott Williams & Wilkins. In regions where chronic hepatitis B infection is endemic, young adults aged 20 to 40 (who had contracted the virus via maternal-fetal transmission) have the highest risk of developing hepatocellular carcinoma 30. https://doi.org/10.1245/s10434-012-2513-1 (2013). Imaging. This retrospective study was approved by the ethics committee of the Second Hospital of Shandong University. To our knowledge, no previous study has illustrated the perfusion parameters or histogram parameters originated from triphasic CT enhancement scans to distinguish HCC from IMCC. However, hepatitis B and C virus infections were also risk factors for IMCC25,26, but our study showed no significant association between infection and IMCC. For patients with HCC, the HAP image showed high perfusion in the rim, while the PVP image showed homogeneous low perfusion in the complete lesion. The infiltrative subtype is characterized by a growth of multiple tiny nodules throughout the entire liver or an entire liver segment. 2. Progressive abdominal enlargement of patient known to have HCV. MRI features of hepatocellular carcinoma related to biologic behavior. 28 (7): 2059-63. 18. Conversely, IMCC typically shows peripheral enhancement in the arterial phase, with centripetal progressive reinforcement on delayed phase12. 19(3), 42433. The study was approved by the Ethics Committee of the Second Hospital of Shandong University (No. Scientific Reports (Sci Rep) PubMedGoogle Scholar. The AEF and rAEF both displayed a higher AUC (0.726) than other perfusion parameters, and were considered to be effective at distinguishing between IMCCs and HCCs. All the HAP related parameters had no statistical significance in predicting MVI, so no relevant values were counted in the Tables 2, 3 and 4. A total of 81 HCC patients were enrolled in the study, with a total of 89 lesions. In addition, Hsu et al.33 previously revealed that perfusion parameters associated well with tumor survival and treatment responses in patients who received anti-angiogenic drugs. Sparing of fatty infiltration around focal hepatic lesions in patients with hepatic steatosis: sonographic appearance with CT and MRI correlation. Frontiers | Computed Tomography Radiomics-Based Prediction of Huang, M. et al. In all patients, scanning was performed using a Discovery 750HD CT scanner (GE Healthcare, Waukesha, WI, USA) with the following parameters: tube voltage: 120kV, tube current 250mA, collimation: 0.625mm, a rotation time of 0.5s, with the slice thickness: 5mm, and a gap of 2mm. & Willmann, J. K. CT perfusion of the liver: Principles and applications in oncology. Sex ratio was 71:10, male to female, and mean age was 56.34 years old with a range of 3181. The patient is hooked up to an IV, but the first scan is usually done before IV contrast injection. Risk factors contributing to early and late phase intrahepatic recurrence of hepatocellular carcinoma after hepatectomy. Roayaie, S. et al. The 10th percentiles of the AEF and rAEF showed the highest AUC of 0.788, which indicated that those factors had the best power to discriminate IMCCs from HCCs. 273(3), 564571. North Am. J. Oncol. Background and aims: The American Association for the Study of Liver Disease issued guidelines that proposed that hepatocellular carcinoma (HCC) can be diagnosed if a mass is larger than 2 cm in a cirrhotic liver and shows typical features of HCC at triphasic liver computed tomography (CT) or dynamic magnetic resonance imaging (MRI). To evaluate interobserver agreement for perfusion parameters and corresponding histogram parameters analyses, the quadratic weighted k statistics were calculated and exhibited excellent interobserver agreement (k=0.87). AJR Am J Roentgenol. Regarding relative parameters, there were statistical differences between the two groups in the parameters of rPVP(Min), rHPI(Max), rAEF(Min) and rAEF(Max). Hepatocellular carcinoma receives most of its blood supply from branches of the hepatic artery, accounting for its characteristic enhancement pattern: early arterial enhancement with early "washout." This could be explained by the fact that blockage of small branches of portal vein decreased portal vein blood flow perfusion, and in return, leaded to excessive perfusion in arterial phase. Lastly, we did not classify HCCs by histological grades which would affect the accuracy of the results, and we did not compare the performance between our study and other radiological and/or clinical diagnostic algorithms. 20, 32539. ; Clinical studies: G.P. Clin. The two parameters related to HPI had the highest sensitivity, while the combination of PVP related parameters had higher specificity. In planned future studies, an increase of sample size and multicenter research will help to validate further the findings of the current study. Kim, K. W. et al. 20. Liver Transpl. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. If the lesion is small then resection is possible (partial hepatectomy) and may result in remission. [Diagnosis, management, and treatment of hepatocellular carcinoma (V2017)].