Search results for "RESONANCE"

Multimodalities imaging in diagnosis of pericardial cyst

2015

Pericardial cysts, an uncommon benign congenital anomaly belonging to the category of mediastinal masses. Cysts are usually detected incidentally on chest radiography or echocardiography, being most patients asymptomatic. In some cases, however, symptoms and complications occur, like dyspnea, chest pain, or persistent cough. Computed tomography and magnetic resonance imaging are the imaging techniques of choice to diagnose pericardial cysts. The removal of pericardial cysts is restricted to the cases with an uncertain diagnosis or in the presence of symptoms.

Diagnostic potential of the diffusion tensor tractography with fractional anisotropy in the diagnosis and treatment of cervical spondylotic and postt…

2016

Background: Diffusion tensor imaging (DTI) is a magnetic resonance imaging (MRI)-based methodology widely used for the evaluation of microstructural integrity of the central nervous system (CNS), particularly of brain white matter fibers and bundles. Methods: The most common parameters evaluated in a DTI study are the fractional anisotropy (FA) and mean diffusivity (MD). Combining FA and MD analyses is commonly used in the evaluation of various types of brain pathologies, such as brain tumors, where a combined analysis allows an accurate tumor characterization. Results: Recent studies have shown that FA and MD could be of value in non-oncologic spinal pathology. In this regard, it has been …

Role of prenatal magnetic resonance imaging in fetuses with isolated severe ventriculomegaly at neurosonography: A multicenter study.

2021

Objective: The aim of this study was to report the rate of additional anomalies detected exclusively at prenatal magnetic resonance imaging (MRI) in fetuses with isolated severe ventriculomegaly undergoing neurosonography. Method: Multicenter, retrospective, cohort study involving 20 referral fetal medicine centers in Italy, United Kingdom, Spain and Denmark. Inclusion criteria were fetuses affected by isolated severe ventriculomegaly (≥15 mm), defined as ventriculomegaly with normal karyotype and no other additional central nervous system (CNS) and extra-CNS anomalies on ultrasound. In all cases, a multiplanar assessment of fetal brain as suggested by ISUOG guidelines on fetal neurosonogra…

Why Do We Have to Use Chemotherapy?

2018

The use of chemotherapy (CT) in localized rectal cancer (LARC) has two aims: first, to improve the local effect of radiotherapy by giving concomitant chemoradiation and second, to decrease systemic relapses by early treatment for occult micrometastatic disease or to shrink bulky local tumours. Neoadjuvant treatment is reserved for locally advanced disease, as defined by pelvic magnetic resonance imaging, a very useful and accurate tool to identify high-risk features for local or systemic relapse [1]. We are going to address why we have to use CT in LARC.

Moderne Diagnostik zystischer Leberläsionen und Hämangiome

2015

Clinical issue: Cystic liver lesions incorporate a broad heterogeneous group of mostly benign but also malignant abnormalities. The radiological aim is the non-invasive diagnosis with the use of different imaging modalities to determine the type of lesion.Standard radiological methods: The common generally asymptomatic incidental findings of cystic lesions on ultrasound, computed tomography (CT) and magnetic resonance imaging (MRI) must be classified on the basis of specific imaging features. Such a differentiation is essential because the clinical consequences and the appropriate therapy can vary depending on the underlying pathology. Due to the morphological overlap of many cystic lesions…

Customized approach for otogenic brain abscess: the neurosurgical prospective

2017

A young patient with type 2 diabetes associated non-alcoholic steatohepatitis, liver cirrhosis, and hepatocellular carcinoma.

2020

The rising prevalence of the metabolic syndrome has led to an increase of non-alcoholic fatty liver disease (NAFLD), and its progressive-inflammatory form called non-alcoholic steatohepatitis (NASH). In recent years, NAFLD and NASH have become major risk factors for developing liver cirrhosis and hepatocellular carcinoma (HCC). In this case, we report a 46-year-old patient with type 2 diabetes mellitus and metabolic comorbidities including obesity and arterial hypertension, who was referred because of rising liver enzymes. After clinical and diagnostic evaluation, the patient was diagnosed with NASH-associated liver cirrhosis, Child-Pugh stage B. A normal blood sugar level was difficult to …

The Role of Imaging Biomarkers in the Assessment of Sarcopenia

2020

Background: The diagnosis of sarcopenia through clinical assessment has some limitations. The literature advises studies that include objective markers along with clinical assessment in order to improve the sensitivity and specificity of current diagnostic criteria. The decrease of muscle quality precedes the loss of quantity, so we studied the role magnetic resonance imaging biomarkers as indicators of the quantity and quality of muscle in sarcopenia patients. Methods: a cross-sectional analysis was performed to analyze what MR-derived imaging parameters correlate better with sarcopenia diagnostic criteria in women of 70 years of age and over (independent walking and community-dwelling wom…

Tactile enumeration: A case study of acalculia

2018

Abstract Enumeration is one of the building blocks of arithmetic and fingers are used as a counting tool in early steps. Subitizing—fast and accurate enumeration of small quantities—has been vastly studied in the visual modality, but less in the tactile modality. We explored tactile enumeration using fingers, and gray matter (GM) changes using voxel-based morphometry (VBM), in acalculia. We examined JD, a 22-year-old female with acalculia following a stroke to the left inferior parietal cortex. JD and a neurologically healthy normal comparison (NC) group reported how many fingers were stimulated. JD was tested at several time points, including at acute and chronic phases. Using the sensory …

Diagnostik der primär sklerosierenden Cholangitis: prospektiver Vergleich von MR-Cholangiographie mit endoskopisch retrograder Cholangiographie

1998

PURPOSE To assess the accuracy of MR cholangiography (MRC) in the diagnosis of primary sclerosing cholangitis (PSC) in comparison to endoscopic retrograde cholangiography (ERC). METHOD 20 patients with PSC were examined by ERC and MRC (1.0 T, HASTE sequence). Visualization and pathologic changes of the extra- and intrahepatic bile ducts were evaluated with both methods. RESULTS Mural irregularities of the common bile duct were seen with MRC in 6/7 cases, stenoses and dilatation of the common bile duct were detected correctly in all patients. Diffuse, multifocal strictures of the intrahepatic bile ducts were the most common intrahepatic findings and correctly diagnosed in almost all patients…