Comparative the clinical value of contrast-enhanced ultrasonography, enhancement CT and MRI for diagnosing of liver lesions

2021 ◽  
pp. 1-11
Author(s):  
Gang Zhang ◽  
Dandan Liu
Keyword(s):  
Liver Cancer ◽  
Primary Liver Cancer ◽  
Pathological Examination ◽  
Liver Lesions ◽  
Clinical Value ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Significant Difference ◽  
Contrast Enhanced Ultrasonography ◽  
Ct And Mri

BACKGROUND: To investigate the accuracy of contrast-enhanced ultrasonography, CT-enhancement and MRI in the diagnosis of liver-occupying lesions. METHODS: 176 patients with suspected liver lesions in our hospital were retrospectively studied from July 2014 to July 2016. All of the 176 patients were diagnosed by contrast-enhanced ultrasonography, enhanced CT and MRI, and the pathological examination was performed. The results of pathological examination were regarded as the results of the diagnosis. The diagnostic accuracywas then compared among contrast-enhanced ultrasound, enhanced CT and MRI of these patients. RESULTS: The results of contrast-enhanced ultrasonography showed that 164 of the 176 patients had liver-occupying lesions, and the accuracy of the diagnosis was 95.35%, which was significantly higher than that of CT enhancement and MRI (80.23% 84.30%). The accuracy of contrast-enhanced ultrasonography, in the diagnosis of primary liver cancer was significantly higher than that of CT enhancement and MRI (P <  0.05), and the difference was significant difference (P <  0.05). CONCLUSIONS: The examination of contrast-enhanced ultrasonography is relatively simple, and the patients can get duplicateexamination, so we should choose the contrast-enhanced ultrasonography as the preferred method of diagnosis in liver mass, especially primary liver cancer.

Dynamic, contrast-enhanced CT and MRI of focal liver lesions: Similarities, differences and explanations

1995 ◽  
Vol 2 (12) ◽  
pp. 1139
Author(s):  
G. Scott Gazelle ◽  
Giles W. Boland ◽  
Michael J. Lee ◽  
William W. Mayo-Smith ◽  
Sanjay Saini ◽  
...  
Keyword(s):  
Focal Liver Lesions ◽  
Liver Lesions ◽  
Dynamic Contrast Enhanced ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Dynamic Contrast Enhanced Ct ◽  
Ct And Mri

scholarly journals Early Identification of Residual Tumors following Microwave Ablation Using Contrast-Enhanced Ultrasonography in a Rabbit VX2 Liver Cancer Model

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Huiming Yi ◽  
Baohuan Cai ◽  
Xi Ai ◽  
Kaiyan Li ◽  
Pengfei Song ◽  
...  
Keyword(s):  
Blood Flow ◽  
Liver Cancer ◽  
Normal Liver ◽  
Residual Tumor ◽  
Liver Parenchyma ◽  
Normal Liver Parenchyma ◽  
Contrast Enhanced ◽  
Significant Difference ◽  
Vx2 Tumor ◽  
Contrast Enhanced Ultrasonography

Objective. It is difficult to evaluate the ablation effect immediately after thermal ablation of liver cancer by clinical imaging methods, due to the immediate formation of an annular inflammatory reaction band (IRB). This study is aimed at exploring the early identification indicators of the IRB and residual tumor postmicrowave ablation (MVA) using contrast-enhanced ultrasonography (CEUS). Methods. MVA was used to inactivate part of the tumor nodules in rabbit VX2 liver cancer models, leading to the coexistence of the IRB with residual tumors. Quantitative analysis of the perfusion parameters of the tumor and ablation zone was performed using CEUS, followed by liver biopsy and VEGFR-2 immunohistochemical staining. Results. All rabbits successfully tolerated VX2 tumor inoculation and MVA operation. No statistically significant difference existed between the IRB vs. residual tumors, the IRB vs. junctional areas, and residual tumors postablation vs. VX2 tumors before ablation in regional blood volume, blood velocity, and blood flow estimated by parameters A, k, and A∗k of CEUS quantitative analysis. There was a statistically significant difference between the IRB and normal liver parenchyma in regional blood velocity and blood flow (p=0.005 and p=0.023, respectively). Normal liver parenchyma showed nonspecific VEGFR-2 staining, while VX2 tumor before ablation and residual tumor after ablation both showed positive VEGFR-2 staining; the necrosis zone showed negative staining by VEGFR-2 immunohistochemical staining. Conclusion. MVA had no significant effect on the residual tumor hemodynamics. The blood flow in the IRB increased significantly as compared to normal liver parenchyma, resembling tumor hemodynamic patterns. CEUS can detect residual tumors immediately postablation only when they protrude from the annular-shaped IRB. In addition, VEGFR-2 targeted CEUS may have a great potential for detecting residual tumor after thermal ablation of hepatocellular carcinoma.

scholarly journals Comparison of Effects of Radiofrequency Ablation of Liver Cancer Guided by CT Images Based on Deep Learning Algorithm

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Kai Huang ◽  
Tongqing Zhang ◽  
Zhiliang He ◽  
Fengxia Wang
Keyword(s):  
Deep Learning ◽  
Liver Cancer ◽  
Primary Liver Cancer ◽  
Operation Time ◽  
Spiral Ct ◽  
Postoperative Hospital Stay ◽  
Liver Lesions ◽  
Ct Guided ◽  
Total Operation Time ◽  
Significant Difference

Objective. To investigate the paper radiofrequency ablation (RFA) CT-guided feasibility of hepatocellular carcinoma (primary liver cancer) treatment, safety, and clinical efficacy of the use of deep learning algorithms. Method. A total of 47 cases of primary liver cancer patients were included: 21 cases of CT-guided liver lesions in line with RFA (C-CT group) and, in the same period, 26 cases of spiral CT-guided liver lesions in line with RFA (S-CT group). Two groups of patients were recorded immediately after the total operation time and ablation time, the acceptable radiation dose was observed in the incidence of postoperative complications of 7d, and the postoperative hospital stay was recorded to evaluate the efficacy of the treatment of lesions in 1, 3, and 6 months after RFA. Results. All 47 patients were successful; two technical success rates were 100%. There was a significant difference ( P  < 0.05) in the total operation time groups, ablation time, and acceptable radiation dose. And there was no significant difference ( P  < 0.05) in postoperative complications of 7d groups, postoperative hospital stay, and local disease control. There was a significant difference ( P  < 0.05) in the S-CT group, seven ablation residual or recurrent lesions during the follow-up ratio of 26.9%, and C-CT groups compared with only 14.3%. Conclusion. CT-guided RFA treatment of primary liver cancer patients is safe, effective, and superior to the conventional spiral CT-guided ablation lesion site-specific terms.

scholarly journals Adrenal incidentalomas: imaging challenges—role of MDCT scan versus MRI in evaluating adrenal incidentalomas

2021 ◽  
Vol 52 (1) ◽  
Author(s):  
Monica Maher Amin Nawar ◽  
Sameh Abdel Aziz Zaky Hanna ◽  
Shereen Sadik El-Sawy ◽  
Sally Yehia Shokralla
Keyword(s):  
Significant Risk ◽  
Adrenal Incidentaloma ◽  
Adrenal Incidentalomas ◽  
Specific Patient ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Significant Difference ◽  
Adrenal Masses

Abstract Background The term adrenal incidentaloma (AI), by definition, is an adrenal mass that is unexpectedly detected through an imaging procedure performed for reasons unrelated to adrenal dysfunction or suspected dysfunction. Despite their frequent appearance, the challenge remains in recognizing and treating the small percentage of AI that poses a significant risk, either because of their hormonal activity or because of their malignant histology. The aim of this study is to study the role of MRI, specifically chemical shift imaging (CSI), against various MDCT scans (non-enhanced, enhanced, and delayed) in the characterization of incidentally discovered adrenal masses to offer a way for the patients to avoid unnecessary time and money-wasting imaging modalities used to reach a diagnosis of their incidentally discovered adrenal lesions. We examined a total number of 20 patients with total of 22 adrenal lesions. The mean age was 51.1 ± 15.27. Results In our study, we found that among CT parameters, APW and RPW showed the highest sensitivity and specificity for detection of lipid-rich adenomas. CSI has also proven to be the best MR technique. However, there is no statistically significant difference in the diagnostic capability of CSI versus the CT washout technique. Both modalities could be conducted, according to specific patient preferences and/or limitations, with comparable highly accurate outcomes. Conclusion This study demonstrates that a similar diagnostic outcome is obtained from contrast-enhanced CT (CECT) and MRI with CSI of adrenal lesions.

Mo1935 Using Contrast-Enhanced Ultrasonography (CEUS) Time-Intensity Curves (TICs) as Classifiers in Neural Network Diagnosis of Focal Liver Lesions

2012 ◽  
Vol 142 (5) ◽  
pp. S-1004 ◽  
Author(s):  
Costin T. Streba ◽  
Dan Ionut Gheonea ◽  
Larisa D. Sandulescu ◽  
Liliana Streba ◽  
Tudorel Ciurea ◽  
...  
Keyword(s):  
Neural Network ◽  
Focal Liver Lesions ◽  
Liver Lesions ◽  
Contrast Enhanced ◽  
Contrast Enhanced Ultrasonography ◽  
Network Diagnosis

Value of contrast-enhanced ultrasonography for detecting renal infarcts proven by contrast enhanced CT. A feasibility study

2007 ◽  
Vol 18 (2) ◽  
pp. 376-383 ◽  
Author(s):  
Michele Bertolotto ◽  
Alberto Martegani ◽  
Luca Aiani ◽  
Roberta Zappetti ◽  
Stefano Cernic ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Contrast Enhanced Ultrasonography
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