Hepatocellular Carcinoma
Conditions
Brief summary
The present study aims to investigate the role of CEUS in evaluating liver lesions with atypical characteristics on contrast-enhanced CT or MRI. All patients enrolled in the study underwent contrast-enhanced ultrasound. Based on CEUS characteristics, atypical nodules will be categorized according to CEUS LI-RADS classification.
Detailed description
This retrospective study investigates the role of CEUS in evaluating liver lesions with atypical characteristics on contrast-enhanced CT or MRI. All patients enrolled in the study underwent contrast-enhanced ultrasound. All CEUS exams were performed, recorded, and analyzed by two experienced operators (\>10 years of experience with abdominal US and CEUS). Based on CEUS characteristics, atypical nodules will be categorized according to CEUS LI-RADS (LR) classification. If the analyzed nodule shows a typical hallmark on CEUS (LR-5), that is arterial phase hyperenhancement with late-onset (\>60 s) washout of mild intensity, it is definitively considered HCC and have been treated appropriately. Categories LR-3 and LR-4 comprise nodules with different combinations of arterial and venous phase enhancement features, expected to correspond to an intermediate or high probability of lesions to be HCC. Patients with LR-3 or LR-4 nodules underwent follow-up; in some cases they underwent biopsy. LR-M is used to classify high-probability malignant lesions but nonspecific for HCC; these nodules underwent biopsy for further characterization.
Interventions
CEUS for atypical liver nodules
Sponsors
Study design
Eligibility
Inclusion criteria
* diagnosis of liver cirrhosis or chronic liver disease with increased risk of HCC * diagnosis of atypical nodules on contrast-enhanced CT or MRI
Exclusion criteria
* less than 18 years of age * pregnancy * typical nodules on contrast-enhanced CT or MRI * non-visualized nodule on B-mode US * CEUS not performed or performed more than three months after CT or MRI
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| The role of CEUS in evaluating atypic liver lesions on contrast-enhanced CT or MRI. | Between January 2018 and January 2023 | The primary endpoint is to assess the contrastographic behaviour of nodules suspected of HCC and defined as atypical by contrast-enhanced CT and MRI, using CEUS. Prevalence of CEUS LI-RADS categories among atypical nodules will be described. |
Countries
Italy