7 research outputs found

    The new mathematical model based carotid intima-media thickness and mild cognitive impairment: comparison of manual and semi-automated measurement techniques

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    An alteration of the cognitive functions plays a crucial role in the quality of life in the elderly. New investigations notice that the thickness of carotid intima-media (CIMT) might help to identify patients with an increased risk of cognitive deterioration. Our aim of the study was to evaluate CIMT of the patients with mild cognitive impairment (MCI) with static (manually) and dynamic (RF-QIMT) ultrasonographic equipments. Our results show that the CIMT was thicker measuring by semi-automated method, than manually and the differences were statistically significant. Our results show no correlation between the CIMT and scores of psychiatric tests, therefore more research is needed for improvement of carotid wall thickening changes in MCI patients

    Multidimensional Volumetric Imaging of Pulmonary Infiltrates for Measuring Therapeutic Response to Antifungal Therapy in Experimental Invasive Pulmonary Aspergillosis

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    Pulmonary infiltrates in neutropenic hosts with invasive pulmonary aspergillosis are caused by vascular invasion, hemorrhagic infarction, and tissue necrosis. Monitoring the dynamics of pulmonary infiltrates of invasive aspergillosis is an important tool for assessing response to antifungal therapy. We, therefore, introduced a multidimensional volumetric imaging (MDVI) method for analysis of the response of the volume of pulmonary infiltrates over time to antifungal therapy in experimental invasive pulmonary aspergillosis (IPA) in persistently neutropenic rabbits. We developed a semiautomatic method to measure the volume of lung lesions, which was implemented as an extension of the MEDx visualization and analysis software using ultrafast computerized tomography (UFCT). Volumetric infiltrate measures were compared with UFCT reading, histopathological resolution of lesions, microbiological clearance of Aspergillus fumigatus, and galactomannan index (GMI). We also studied the MDVI method for consistency and reproducibility in comparison to UFCT. Treatment groups consisted of deoxycholate amphotericin B (DAMB) at 0.5 or 1 mg/kg of body weight/day and untreated controls (UC). Therapeutic monitoring of pulmonary infiltrates using MDVI demonstrated a significant decrease in the infiltrate volume in DAMB-treated rabbits in comparison to UC (P ≤ 0.001). Volumetric data by MDVI correlated with conventional CT pulmonary scores (r = 0.83, P ≤ 0.001). These results correlated with validated biological endpoints: pulmonary infarct scores (r = 0.85, P ≤ 0.001), lung weights (r = 0.76, P ≤ 0.01), residual fungal burden (r = 0.65, P ≤ 0.05), and GMI (r = 0.78, P ≤ 0.01). MDVI correlated with key biological markers, improved the objectivity of radiological assessment of therapeutic response to antifungal therapy, and warrants evaluation for monitoring therapeutic response in immunocompromised patients with invasive aspergillosis

    Correction to: Pilot study of the multicentre DISCHARGE trial: image quality and protocol adherence results of computed tomography and invasive coronary angiography

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    The original version of this article, published on 16 December 2019, unfortunately contained two mistakes. Firstly, the name of Jonathan Dermot Dodd was presented incorrectly. Secondly, the information about the equal contribution of Gianluca De Rubeis and Adriane E. Napp, and Marc Dewey and Marco Francone is missing. The corrected author list is given above and the missing article note below. Furthermore, affiliation 48 from the original version of the article was a duplicate and is therefore removed

    Pilot study of the multicentre DISCHARGE Trial: image quality and protocol adherence results of computed tomography and invasive coronary angiography

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    Objective To implement detailed EU cardiac computed tomography angiography (CCTA) quality criteria in the multicentre DISCHARGE trial (FP72007-2013, EC-GA 603266), we reviewed image quality and adherence to CCTA protocol and to the recommendations of invasive coronary angiography (ICA) in a pilot study. Materials and methods From every clinical centre, imaging datasets of three patients per arm were assessed for adherence to the inclusion/exclusion criteria of the pilot study, predefined standards for the CCTA protocol and ICA recommendations, image quality and non-diagnostic (NDX) rate. These parameters were compared via multinomial regression and ANOVA. If a site did not reach the minimum quality level, additional datasets had to be sent before entering into the final accepted database (FADB). Results We analysed 226 cases (150 CCTA/76 ICA). The inclusion/exclusion criteria were not met by 6 of the 226 (2.7%) datasets. The predefined standard was not met by 13 of 76 ICA datasets (17.1%). This percentage decreased between the initial CCTA database and the FADB (multinomial regression, 53 of 70 vs 17 of 75 [76%] vs [23%]). The signal-to-noise ratio and contrast-to-noise ratio of the FADB did not improve significantly (ANOVA, p = 0.20; p = 0.09). The CTA NDX rate was reduced, but not significantly (initial CCTA database 15 of 70 [21.4%]) and FADB 9 of 75 [12%]; p = 0.13). Conclusion We were able to increase conformity to the inclusion/exclusion criteria and CCTA protocol, improve image quality and decrease the CCTA NDX rate by implementing EU CCTA quality criteria and ICA recommendations.Cardiovascular Aspects of Radiolog
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