Aim. The current study aims to assess the role of the histological parameters in liver biopsy for explaining the variance of liver stiffness, as well as the performance of transient elastography in quantifying liver fibrosis in patients with chronic hepatitis C. Methods. 324 consecutive CHC patients were prospectively included in this study. All of them had positive HCV-RNA in serum and had underwent percutaneous liver biopsy for grading and staging

Splanchnic artery aneurysms are localized vascular dilatations having a progressive evolution and leading towards severe complications (depletive rupture, distal emboli, organ ischemia). Treatment can be efficient when the condition is detected in time. The imaging techniques are highly efficient when it comes to detecting and locating splanchnic aneurysms. Each method has its own features. By knowing them, there is a better chance to track down

The diagnosis of the malignant tumors is one of the major issues in nowadays research. We aim to elaborate a computerized, non-invasive method, for detecting the Hepatocellular Carcinoma (HCC), based on information from ultrasound images. For performing automatic detection of HCC, we elaborated the imagistic textural model of this malignant tumor, consisting in the relevant textural features and in their specific values for HCC. In this paper, we

A precise quantification of the blood flow in vessels under normal or abnormal conditions could constitute a strong basis for diagnosis, prediction or evolution estimation of blood vessels or associated organ diseases. Many fundamental issues of the blood flow are still not fully understood or entirely translated into mathematical formulations. Therefore, the computational modeling of the blood flow based on from medical imaging data is still a challenging

The purpose of our study is to elaborate a reliable method in order to characterize and differentiate the hepatocellular carcinoma in a non-invasive way, based only on information obtained from ultrasound images. Texture is a very important feature, which can reveal subtle characteristics of the tissue in ultrasound images, the computerized methods for texture characterization being able to overpass the limits of the subjective human eye. The textural

In this paper we present a new method of detecting hepatic capsule and other large structures from liver ultrasound images. Local texture anisotropy is evaluated using a specially designed bank of Gabor filters. We show that the proposed method is robust with respect to its parameters and is well suited for processing liver ultrasound images. Two human experts evaluate the method in conjunction with Canny edge detector and a method based on phase

The current study aims to evaluate the performance of a new elastographic method (ARFI) in noninvasive fibrosis assessment and to compare it to another validated technology (transient elastography, TE).Method: 112 consecutive chronic hepatitis C patients (histologically proven according to the Metavir scoring system: 12.5% F0, 26.6% F1, 16.1% F2, 7.1% F3, 37.5% F4) were prospectively included in this study. They were examined on the same day, using

Percutaneous ablative methods guided by imaging techniques are considered nowadays curative treatment for early HCC in patients who are not candidates for liver transplantation and surgical resection. The final goal of all ablative treatments is to achieve complete destruction of neoplastic tissue by disruption of tumor vascularity. The best way to demonstrate the efficacy of any ablative methods noninvasively is to demonstrate that the blood supply

Contrast-enhanced ultrasound is a relatively new technique, currently used for liver tumors diagnosis. Newer contrast agents are composed of stabilized micro-bubbles capable of traversing the capillary circulation. Lately, the method has also been used in the assessment of pancreatic disorders. Pulse inversion harmonic imaging allows the assessment of the hypervascularised masses as neuroendocrine tumors, of the hypoperfused masses as adenocarcinomas

Endoscopic ultrasonography is an imaging method used in the diagnosis of pancreatic diseases. The differentiation between infl ammatory tumor-like masses and pancreatic adenocarcinoma still remains diffi cult. Contrast enhanced harmonic endoscopic ultrasonography (CEH-EUS) is a new technique, recently available in commercial use and less evaluated. It is used to characterize the microcirculation in pancreatic disorders - hypervascularized masses