The significance of colour velocity and spectral Doppler ultrasound in the differentiation of liver tumours

Kamalov, Iuoli R; Сандриков, В.А.; Gautier, Serguei V; Цирульникова, О. М.; Скипенко, О Г

doi:10.1016/s0929-8266(98)00013-5

Cited by 9 publications

(5 citation statements)

References 5 publications

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“…18 Tumor vascularization was found more frequently in HCC as compared to other liver lesions in one study. 19 Vascular proliferation was present in both cirrhosis and HCC on cytology and to even a greater extent in cirrhosis. Therefore, we did not find it a reliable indicator of HCC.…”

Section: A B C Dmentioning

confidence: 98%

Cytohistologic Correlation of Cirrhosis and Hepatocellular Carcinoma

2004

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Section: A B C Dmentioning

confidence: 98%

Cytohistologic Correlation of Cirrhosis and Hepatocellular Carcinoma

2004

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“…However, if the flow is too high for these settings, the wall filter and PRF need to be increased to reduce aliasing or flash artefact due to motion [2]. Liver malignancies require a neovascular supply to grow [3,4]. Conventional colour and spectral Doppler are unable to image the vascularity in the majority of metastases since the signals are too low.…”

Section: Dopplermentioning

confidence: 99%

Ultrasound of focal liver lesions

2001

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This paper gives a comprehensive overview of ultrasound of focal liver lesions. Technical aspects such as examination technique and the use of Doppler modes as well as recent developments such as tissue harmonic imaging and microbubble contrast agents are discussed. The clinical significance and sonographic features of various liver lesions such as haemangioma, focal nodular hyperplasia, adenoma, regenerative nodule, metastasis, hepatocellular carcinoma and various types of focal infections are described. With the exception of cysts and typical haemangiomas, definitive characterisation of a liver lesion is often not possible on conventional ultrasound. This situation has changed with the recent advent of ultrasound contrast agents, which permit definitive diagnosis of most lesions. Contrast-enhanced sonography using recently developed contrast-specific imaging modes dramatically extends the role of liver ultrasound by improving its specificity in the detection and characterisation of focal lesions to rival CT and MRI.

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“…The present study had several limitations. Firstly, The PI value is affected by heart rate, hemangiectasis ability and the total resistance of peripheral blood vessels (40). Secondly, the limits of the instrument and the operator may lead to discrepancy in the observations.…”

Section: Discussionmentioning

confidence: 99%

Preoperative color Doppler ultrasonography predicts early recurrence in AFP‑positive hepatocellular carcinoma

et al. 2019

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The present study aimed to evaluate the hepatic hemodynamics of patients with α-fetoprotein (AFP)-positive hepatocellular carcinoma (HCC) and early recurrence (ER), as determined by color Doppler ultrasound. Screening with color Doppler ultrasound was performed in 150 patients with AFP-positive HCC, yielding 43 cases with postoperative ER. In addition, 35 healthy controls were enrolled in the study for comparison of the blood flow parameters between the healthy control and the HCC groups. Receiver operating characteristic curve analysis was performed to evaluate the predicted effect of Doppler for the ER of HCC. The average mean flow velocity of portal vein in patients with HCC (14.686±5.873 cm/s) was significantly lower in the HCC group compared with the healthy control group (17.631±3.569 cm/s; P=0.005). Additionally, the preoperative portal vein diameter in the HCC group was significantly higher compared with that in the healthy control group (P=0.001). Regarding the effect of surgery, the portal vein diameter was significantly increased in the patients postoperatively compared with preoperatively (P=0.003), while the pulsation and resistance indexes exhibited a decreasing trend in the postoperative group (P=0.001 and P=0.003, respectively). Notably, patients with HCC and ER presented with a higher resistance index (1.163±0.342) compared with the ER-free group (1.023±0.176; P=0.004). Furthermore, a significant difference in hepatic artery pulsation index was also observed between the ER group (0.673±0.075) and the ER-free group (0.624±0.056; P=0.018), indicating that an increased hepatic artery pulsation index may significantly predict the ER of HCC. In addition, areas under the curve of 0.683 and 0.700, respectively, suggested that the hepatic artery resistance and pulsation indexes may be used to diagnose ER in HCC (P=0.009 and P=0.004, respectively). Taken together, Doppler ultrasound provides a reliable and accurate quantification of hepatic hemodynamics for detecting ER in HCC with a good diagnostic accuracy.

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The significance of colour velocity and spectral Doppler ultrasound in the differentiation of liver tumours

Cited by 9 publications

References 5 publications

Cytohistologic Correlation of Cirrhosis and Hepatocellular Carcinoma

Cytohistologic Correlation of Cirrhosis and Hepatocellular Carcinoma

Ultrasound of focal liver lesions

Preoperative color Doppler ultrasonography predicts early recurrence in AFP‑positive hepatocellular carcinoma

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