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The Liver Imaging Reporting and Data System (aka LI-RADS) is a quality assurance tool created and trademarked by the American College of Radiology in 2011 to standardize the reporting and data collection of CT and MR imaging patients at risk for hepatocellular carcinoma (HCC), or primary cancer of the liver cells. [1]
Liver cancer; Other names: Hepatic cancer, primary hepatic malignancy, primary liver cancer: CT scan of a liver with cholangiocarcinoma: Specialty: Gastroenterology Hepatology Oncology: Symptoms: Lump or pain in the right side below the rib cage, swelling of the abdomen, yellowish skin, easy bruising, weight loss, weakness [1] Usual onset: 55 ...
When evaluating hepatic masses by abdominal computed tomography (CT), it can be advantageous to have both late arterial and portal venous phase images since some tumors enhance briskly during the arterial phase (hepatocellular carcinoma, hepatic adenoma, follicular nodular hyperplasia (FNH), and hypervascular metastasis), but maybe occult or ...
An Australian study of 10.9 million people reported that the increased incidence of cancer after CT scan exposure in this cohort was mostly due to irradiation. In this group, one in every 1,800 CT scans was followed by an excess cancer. If the lifetime risk of developing cancer is 40% then the absolute risk rises to 40.05% after a CT.
CT scan showing cholangiocarcinoma. Ultrasound of the liver and biliary tree is often used as the initial imaging modality in people with suspected obstructive jaundice. [49] [50] Ultrasound can identify obstruction and ductal dilatation and, in some cases, may be sufficient to diagnose cholangiocarcinoma. [51]
Liver cancer: primary liver tumors such as hepatocellular carcinoma or cholangiocarcinoma and liver metastases are often treated by procedures such as transarterial chemoembolization (TACE), Selective internal radiation therapy (SIRT/Y-90 radioembolization), portal vein embolization, transarterial/bland embolization, or image guided ablation ...
Spiral CT scan remains the method of choice in monitoring cancer therapies because it provides an overview of tumor extension and it is not limited by bloating or steatosis. [ citation needed ] Gadolinium MRI examination is a procedure used more and more often, and its advantages are the absence of irradiation and its high sensitivity in tumor ...
The main such methods in medical imaging are: X-ray computed tomography (CT), or Computed Axial Tomography (CAT) scan, is a helical tomography technique (latest generation), which traditionally produces a 2D image of the structures in a thin section of the body. In CT, a beam of X-rays spins around an object being examined and is picked up by ...