|
|
||||||||
Radiology, Vol 164, 643-647, Copyright © 1987 by Radiological Society of North America
ARTICLES |
KJ Taylor, I Ramos, SS Morse, KL Fortune, L Hammers and CR Taylor
Duplex Doppler ultrasound (US) was used in 68 consecutive patients with focal liver lesions, including 12 hepatocellular carcinomas, one cholangiocarcinoma, 37 metastases, 15 hemangiomas, one hemangioendothelioma, and two focal nodular hyperplasias. Of the hepatocellular carcinomas, six were diffusely hyperechoic, two were hypoechoic, two were single hyperechoic lesions, and two were multifocal and hyperechoic. All ten tumors with Doppler shifts of 5 kHz or above proved to be hepatocellular carcinomas. The other two hepatocellular carcinomas showed Doppler shifts of 3 kHz. In contrast, no hemangioma showed shifts above 0.7 kHz, and ten of the 15 gave no detectable signal. Of the metastases, 20 gave no signal and 17 had signals of up to 4 kHz. Three-kilohertz signals were also obtained from a cholangiocarcinoma, a hemangioendothelioma, and focal nodular hyperplasia. Correlation with angiographic findings suggested that the high-velocity Doppler signals were associated with large pressure gradients due to arteriovenous shunting. Duplex Doppler US can therefore aid in the differential diagnosis of diffuse and focal liver lesions.
This article has been cited by other articles:
![]() |
J. H. Byun, T. K. Kim, C. W. Lee, J. K. Lee, A. Y. Kim, P. N. Kim, H. K. Ha, and M.-G. Lee Arterioportal Shunt: Prevalence in Small Hemangiomas versus That in Hepatocellular Carcinomas 3 cm or Smaller at Two-Phase Helical CT Radiology, August 1, 2004; 232(2): 354 - 360. [Abstract] [Full Text] [PDF] |
||||
![]() |
T. Isozaki, K. Numata, T. Kiba, K. Hara, M. Morimoto, T. Sakaguchi, H. Sekihara, T. Kubota, H. Shimada, T. Morizane, et al. Differential Diagnosis of Hepatic Tumors by Using Contrast Enhancement Patterns at US Radiology, December 1, 2003; 229(3): 798 - 805. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. I. Feld, K. W. Brown, M. F. Cunnane, C. R. B. Merritt, and P. G. Curcillo Unusual "To-and-Fro" Doppler Spectral Waveform in Lymph Node Metastasis J. Ultrasound Med., June 1, 2002; 21(6): 663 - 667. [Full Text] [PDF] |
||||
![]() |
J. D. Moritz, A. Ludwig, and J.-W. Oestmann Contrast-Enhanced Color Doppler Sonography for Evaluation of Enlarged Cervical Lymph Nodes in Head and Neck Tumors Am. J. Roentgenol., May 1, 2000; 174(5): 1279 - 1284. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| RADIOLOGY | RADIOGRAPHICS | RSNA JOURNALS ONLINE |