Color flow Doppler characterization of focal hepatic lesions
M Nino-Murcia1, P W Ralls, R B Jeffrey
1Department of Radiology, Stanford University Medical Center, CA 94305.
AJR. American Journal of Roentgenology
|December 11, 1992
Summary
Color flow Doppler sonography shows internal vascularity in most hepatocellular carcinomas, but also in many metastases. This overlap limits its effectiveness in differentiating these liver tumors.
Area of Science:
- Hepatobiliary imaging
- Diagnostic radiology
- Vascular ultrasound
Background:
- Focal hepatic lesions require accurate diagnosis.
- Distinguishing hepatocellular carcinoma from metastases is clinically important.
Purpose of the Study:
- To evaluate the sensitivity and specificity of color flow Doppler sonography for diagnosing focal hepatic lesions.
- To assess the utility of color flow Doppler in differentiating hepatocellular carcinoma from other liver lesions.
Main Methods:
- Prospective analysis of color flow Doppler images from 118 focal hepatic lesions in 108 patients.
- Classification of lesions based on internal vascularity patterns.
- Correlation of Doppler findings with histopathological or imaging-confirmed diagnoses.
Main Results:
- 76% of hepatocellular carcinomas exhibited internal vascularity.
- 67% of metastases and 75% of benign lesions lacked internal vascularity.
- Sensitivity for hepatocellular carcinoma was 0.76; specificity against other lesions was 0.69.
Conclusions:
- Internal vascularity on color flow Doppler is common in hepatocellular carcinoma.
- A significant overlap exists with metastases, limiting diagnostic accuracy.
- Color flow Doppler alone has limited utility in definitively distinguishing hepatocellular carcinoma from metastatic tumors.
