Improved characterisation of histologically proven liver tumours by contrast enhanced ultrasonography during the portal venous and specific late phase of SHU 508A
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Summary
This summary is machine-generated.Contrast-enhanced ultrasound using phase inversion ultrasound (PIUS) with Levovist shows promise in differentiating benign and malignant liver tumors. This technique aids in characterizing liver lesions, improving diagnostic accuracy beyond conventional methods.
Area Of Science
- Hepatology
- Medical Imaging
- Diagnostic Ultrasound
Background
- Conventional ultrasound has limitations in accurately characterizing liver tumors.
- Differentiating benign from malignant liver lesions is crucial for appropriate patient management.
Purpose Of The Study
- To evaluate the efficacy of contrast-enhanced phase inversion ultrasound (PIUS) using Levovist.
- To assess PIUS's ability to differentiate between benign and malignant liver lesions during specific phases of contrast enhancement.
Main Methods
- Prospective study of 174 patients with histologically confirmed liver tumors.
- Utilized conventional B-mode ultrasound and contrast-specific PIUS with SHU 508A (Levovist).
- Employed a delayed scanning technique during the liver-specific phase post-contrast injection.
Main Results
- Malignant lesions typically showed hypoechoic enhancement during the portal venous phase.
- Benign lesions generally exhibited homogeneous, isoechogenic enhancement in portal venous and late phases.
- Exceptions included inflammatory pseudotumors and abscesses, which showed hypoechoic enhancement.
Conclusions
- PIUS during the portal venous and liver-specific late phases of Levovist can differentiate most benign and malignant liver tumors.
- Certain conditions like abscesses, scars, necrosis, cysts, and calcifications require exclusion by clinical assessment and conventional ultrasound.