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CT angiography in hepatocellular carcinoma
Insights
Computed tomographic angiography (CTA) effectively evaluates hepatocellular carcinoma (HCC), classifying tumors and detecting small metastases. This imaging is valuable for treatment planning before surgery or embolization.
Area of Science:
- Radiology
- Oncology
- Hepatobiliary Imaging
Background:
- Hepatocellular carcinoma (HCC) is a primary malignant tumor of the liver.
- Accurate pre-treatment evaluation is crucial for effective HCC management.
Purpose of the Study:
- To assess the diagnostic utility of computed tomographic angiography (CTA) for hepatocellular carcinoma.
- To evaluate CTA's role in classifying HCC and detecting intrahepatic lesions.
Main Methods:
- CTA was performed in 32 HCC cases with contrast infusion into hepatic and superior mesenteric arteries.
- Computed tomography imaging was acquired during both arterial and portal phases.
Main Results:
- CTA classified HCC into four types, with 87.5% exhibiting characteristic findings.
- CT portography demonstrated high efficiency in detecting tumors, including small intrahepatic metastases.
- Portal vein infiltration was effectively identified using CTA.
Conclusions:
- CTA is a useful imaging modality for evaluating hepatocellular carcinoma.
- CTA aids in pre-operative assessment for hepatic lobectomy and arterial embolization therapies.
Abstract:
In 32 cases of hepatocellular carcinoma (HCC) computed tomographic angiography (CTA) was performed to evaluate its diagnostic usefulness. The contrast material was infused into both the hepatic artery and superior mesenteric artery. Computed tomography was performed during the arterial and the portal phase. According to the CTA findings, HCC could be classified into four types; 28 of 32 cases (87.5%) showed the characteristic findings of HCC. It was also apparent that CT portography was quite efficient in detecting the existence of tumor, in particular the presence of small intrahepatic metastatic lesions and tumor infiltration into the portal vein. Computed tomographic angiography performed during both the arterial and portal phase is useful in evaluating HCC prior to hepatic lobectomy or arterial embolization therapy.