Search results for "aging"

Forefoot strikers exhibit lower running-induced knee loading than rearfoot strikers.

2013

AB Purpose: Knee pain and Achilles tendinopathies are the most common complaints among runners. The differences in the running mechanics may play an important role in the pathogenesis of lower limb overuse injuries. However, the effect of a runner's foot strike pattern on the ankle and especially on the knee loading is poorly understood. The purpose of this study was to examine whether runners using a forefoot strike pattern exhibit a different lower limb loading profile than runners who use rearfoot strike pattern. Methods: Nineteen female athletes with a natural forefoot strike (FFS) pattern and pair-matched women with rearfoot strike (RFS) pattern (n = 19) underwent 3-D running analysis …

Quantification of myocardial blood flow and blood flow reserve in the presence of arterial dispersion: A simulation study

2002

Myocardial blood flow (MBF) can be quantified using dynamic T1-weighted MRI of diffusible tracers and a mathematical model of underlying vasculature. Quantification of MBF by means of T1- weighted MRI requires knowledge of the arterial input function (AIF). The AIF can be estimated from the left ventricular (LV) cavity. However, dispersion may occur between the LV and the tissue of interest because of the laminar blood flow profiles, branching of venules, and because of stenosis. To evaluate the influence of dispersion on the results of MBF quantification, a simulation study was performed. The dispersion was described as a convolution of the AIF with an exponential residue function. Synthet…

Myocardial fibrosis by delayed enhancement cardiovascular magnetic resonance and HCV infection in thalassemia major patients.

2010

Abstract Abstract 4265 Introduction. Delayed enhancement (DE) cardiac magnetic resonance (CMR) technique with intravenous administration of gadolinium (Gd) chelates contrast agents is the only validated non-invasive approach for detecting myocardial fibrosis (Mahrholdt H et al, Eur Heart J 2005). This technique has been confirmed safe in patients with hemoglobinopathies (Meloni A et al, Haematologica 2009). In thalassemia major (TM), myocardial fibrosis has been detected using the DE technique and a positive correlation with anti-HCV antibodies has been described (Pepe A et al, Heart 2009). However, HCV-induced cardiomyopathy is still controversial (Matsumori A et al. J Card Fail 2006). The…

Imaging features of histological subtypes of hepatocellular carcinoma: Implication for LI-RADS

2021

Background & Aims The histopathological subtypes of hepatocellular carcinoma (HCC) are associated with distinct clinical features and prognoses. This study aims to report Liver Imaging Reporting and Data System (LI-RADS)-defined imaging features of different HCC subtypes in a cohort of resected tumours and to assess the influence of HCC subtypes on computed tomography (CT)/magnetic resonance imaging (MRI) LI-RADS categorisation in the subgroup of high-risk patients. Methods This retrospective institutional review board-approved study included patients with resected HCCs and available histopathological classification. Three radiologists independently reviewed preoperative CT and MRI exams. T…

Coffee and tea breaks for liver health

2017

Let food be your medicine (Hippocrates, 400 B. C.) The quality of diet, calorie intake and physical activity/sedentari-ness are pivotal drivers in the interplay between health and non-communicable diseases, and the battle against the risks associ-ated with Western-type behaviour is the top priority of medical societies and health institutions. Unfortunately, any attempt at adopting a healthy lifestyle is counteracted by unhealthy environmental pressure, which favours the diseases of affluence, including liver diseases. The typical Mediterranean diet, characterized by the consumption of complex carbohydrates, fibre-and antioxidant-rich vegetables, and polyunsaturated fatty acids, is considered…

Thyroid ectopia of the liver: An unusual diagnosis with contrast-enhanced EUS (with video)

2019

No abstract available

Hepatobiliary and Pancreatic: Portal hypertensive biliopathy presenting as acute cholangitis

2013

Role of conventional radiology and MRi defecography of pelvic floor hernias

2013

Background Purpose of the study is to define the role of conventional radiology and MRI in the evaluation of pelvic floor hernias in female pelvic floor disorders. Methods A MEDLINE and PubMed search was performed for journals before March 2013 with MeSH major terms 'MR Defecography' and 'pelvic floor hernias'. Results The prevalence of pelvic floor hernias at conventional radiology was higher if compared with that at MRI. Concerning the hernia content, there were significantly more enteroceles and sigmoidoceles on conventional radiology than on MRI, whereas, in relation to the hernia development modalities, the prevalence of elytroceles, edroceles, and Douglas' hernias at conventional radi…

Endoscopic Resection for High-Grade Dysplasia in Barrett’s Esophagus

2005

Endoscopic resection (ER) has gained more and more importance in the treatment of high grade dysplasia (HGD) in Barrett's esophagus over the last few years. The choice of the different available techniques depends on the macroscopic type of the lesion and the personal experience of the endoscopist. But the "suck and cut"-technique with ligation device or cap should be favoured to normal strip biopsy in the esophagus because of the size of the resected specimen and its technical feasibility. Several studies demonstrate the effectivity and safety of ER in patients with HGD, therefore ER should be the treatment of choice in these patients.

LI-RADS ancillary features favoring benignity: is there a role in LR-5 observations?

2021

The Liver Imaging Reporting and Data System algorithm allows category downgrade in the presence of ancillary features (AFs) favoring benignity, even in observations categorized as LR-5. This study aims to assess the role of AFs favoring benignity in LR-5 observations and their impact on category downgrade. This study included high-risk patients with at least one LR-5 observation imaged with gadoxetate disodium MRI. Three readers with different experience levels independently evaluated the presence of AFs favoring malignancy (not hepatocellular carcinoma (HCC) in particular and HCC in particular) and AFs favoring benignity. Category downgrade was considered possible in the presence of ≥ 1 AF…