Articolele autorului Radu Ion Badea
Link la profilul stiintific al lui Radu Ion Badea

Contrast Enhanced Ultrasound and Computer Tomography Diagnosis of Solid and Mixed Pancreatic Tumors – Analysis of Confounders

Aims. The aim of this study was to evaluate the leading causes of discrepancies between imaging studies [contrast enhanced ultrasound (CEUS) and contrast enhanced computer tomography (CECT)] diagnosis and histology in patients presenting to a tertiary referral center with previously detected pancreatic masses by standard abdominal ultrasound. Methods. We performed a prospective longitudinal observational study on 76 patients with pancreatic masses:

Read more
Intelligent decision-making for liver fibrosis stadialization based on tandem feature selection and evolutionary-driven neural network.

Hepatic fibrosis represents the principal pointer to the development of liver diseases. The correct evaluation of its degree, based on both recent non-invasive procedures and machine learning models, is of current major concern. One of the latest medical imaging methodologies for assessing it is the Fibroscan, supported by biochemical and clinical examinations. Since the complex interaction between the Fibroscan stiffness indicator and the biochemical

Read more
Double splenic artery pseudoaneurysm associating splenic infarction in chronic pancreatitis.

Pseudoaneurysm represents a rare complication in chronic pancreatitis, caused by enzymatic digestion of peripancreatic arteries or the erosion of a visceral artery by pseudocysts. The presence of multiple pseudoaneurysms is rarely seen and their association with splenic infarction has been rarely reported. This case presentation reports the concomitant presence of two pseudoaneurysms with different mechanisms of formation, one of them diagnosed by

Read more
Acoustic Radiation Force Impulse Elastography for fibrosis evaluation in patients with chronic hepatitis C: An international multicenter study.
Ultrasonographic assessment of skin structure according to age

High-frequency ultrasound is a noninvasive tool that offers characteristic markers, quantifying the cutaneous changes of the physiological senescence process. Aims: The aim was to assess the changes in skin thickness, dermal density and echogenicity, as part of the ageing process, with different age intervals. Methods : The study was performed on 160 patients, aged 40.4 ± 21.2, divided into four age categories:

Read more
Medical education of students and residents – a new paradigm?
The role of i.v. and oral contrast enhanced ultrasonography in the characterization of gastric tumors. A preliminary study

To identify the diagnosis benefits of harmonics optimized i.v. contrast enhanced ultrasonography (CEUS) in the detection and characterization of several gastric neoplasms. Material and method: The study group included 10 patients with gastric neoplasms, either epithelial or stromal. The examination included grey scale ultrasonography combined with hydrosonography and harmonics ultrasonography with i.v. contrast media, centered on the tumor, using

Read more
Using ultrasonography as a teaching support tool in undergraduate medical education – time to reach a decision

Medical education and the process of teaching and learning, respectively, are constantly changing. This is induced by the pace at which knowledge, teaching methodology and its related tools are updated, the use of simulation, virtual depiction and the use of static and/or dynamic images. In this respect, X-ray images have been used in the understanding of macroanatomy ever since the beginning of the last century. Starting with the 1990s, when high-performing

Read more
Shengyong Chen, Maria Crisan. Biomedical Signal Processing and Modeling Complexity of Living Systems
Contrast enhanced and Doppler ultrasonography in the characterization of the microcirculation. Expectancies and performances

Normal and pathological vascularization can be examined using imaging methods. The use of contrast agents (CA), tracers or markers within the bloodstream, has gained more and more applications in the last years. The dynamics of the CA passing through a region of interest is directly correlated with the morphological and functional characteristics of the bloodstream in that particular area. Doppler ultrasonography provides information only regarding

Read more