Publications by authors named "Nardi C"

Bone health in people living with HIV (PLWH) has emerged as a significant concern in the era of effective antiretroviral therapy (ART). While ART has transformed HIV infection into a chronic condition, it has also unmasked long-term health complications, including an increased risk of osteoporosis and fractures. This review aims to elucidate the multifactorial mechanisms contributing to bone health deterioration in PLWH, such as direct viral effects, immune activation, and ART-induced bone metabolism changes.

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  • * Recent literature has focused on new technologies to improve the diagnosis and prognosis of head and neck squamous cell carcinoma (HNSCC), with particular attention on dual-energy computed tomography (DECT).
  • * DECT uses two X-ray energy levels to create detailed images that help differentiate materials, improve contrast, and assist in tumor assessment, potentially offering significant advantages in managing HNSCC.
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Background: COVID-19 has put a huge strain on the healthcare systems worldwide, requiring unprecedented intensive care resources. There is still an unmet clinical need for easily available biomarkers capable of predicting the risk for severe disease. The main goal of this prospective multicenter study was to identify biomarkers that could predict ICU admission and in-hospital mortality.

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Objective: Apical periodontitis (AP) is one of the most common pathologies of the oral cavity. An early and accurate diagnosis of AP lesions is crucial for proper management and planning of endodontic treatments. This study investigated the diagnostic accuracy of periapical radiography (PR) and panoramic radiography (PAN) in the detection of clinically/surgically/histopathologically confirmed AP lesions.

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  • The study focuses on the importance of accurately diagnosing peripheral pulmonary lesions (PPL) using biopsy methods such as endobronchial ultrasound (EBUS), computed tomography (CT), and electromagnetic navigation bronchoscopy (ENB).
  • A systematic review was conducted, including 81 studies from various databases, to evaluate the diagnostic accuracy of these techniques, with CT showing the highest median accuracy and largest potential for complications.
  • The findings suggest that while CT-guided biopsies are the most accurate, they also carry the highest risk of complications; overall, the accuracy calculation must account for indeterminate results treated as false negatives.
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Broncho-alveolar lavage (BAL) is indicated in cases of uncertain diagnosis but high suspicion of Sars-Cov-2 infection allowing to collect material for microbiological culture to define the presence of coinfection or super-infection. This prospective study investigated the correlation between chest computed tomography (CT) findings, Covid-19 Reporting and Data System score, and clinical outcomes in Coronavirus disease 2019 (Covid-19) patients who underwent BAL with the aim of predicting outcomes such as lung coinfection, respiratory failure, and hospitalization length based on chest CT abnormalities. Study population included 34 patients (range 38-90 years old; 20 males, 14 females) with a positive nucleic acid amplification test for Covid-19 infection, suitable BAL examination, and good quality chest CT scan in the absence of lung cancer history.

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Introduction: Since 2013, European countries have transposed the 2013/59/EURATOM Directive that lays down basic safety standards for protection against dangers arising from exposure to ionising radiation. In the years between the issuance of the European Directive and its formal transposition, Italian researchers investigated solutions to renew the technological, educational, and organizational culture in radiology departments.

Scope: This article proposed a reflection on the contribution of Organizational Health Literacy (OHL) to implement Legislative Decree 101/2020 in the practice of Italian radiology departments.

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The aim of this work is to identify MRI texture features able to predict the response to radio-chemotherapy (RT-CHT) in patients with naso-oropharyngeal carcinoma (NPC-OPC) before treatment in order to help clinical decision making. Textural features were derived from ADC maps and post-gadolinium T1-images on a single MRI machine for 37 patients with NPC-OPC. Patients were divided into two groups (responders/non-responders) according to results from MRI scans and 18F-FDG-PET/CT performed at follow-up 3-4 and 12 months after therapy and biopsy.

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Purpose: Rapid on-site-evaluation (ROSE) is a technique aimed at improving the diagnostic performance of computed tomography (CT)-guided core needle biopsy (CNB) in lung cancer. The aim of this retrospective study was to investigate the impact of ROSE on the rate of nondiagnostic specimens and on accuracy computed on diagnostic specimens.

Materials And Methods: During a 3-year period, 417 CT-guided CNBs were performed at our center.

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Diagnosing COVID-19 and treating its complications remains a challenge. This review reflects the perspective of some of the Dragon (IMI 2-call 21, #101005122) research consortium collaborators on the utility of bronchoalveolar lavage (BAL) in COVID-19. BAL has been proposed as a potentially useful diagnostic tool to increase COVID-19 diagnosis sensitivity.

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Objective: Magnetic resonance (MR) relaxometry is an absolute and reproducible quantitative method, compared with signal intensity for the evaluation of liver biliary function. This is obtainable by the T1 reduction rate (T1RR), as it carries a smaller systematic error than the pre/post contrast agent T1 measurement. We aimed to develop and test an MR T1 relaxometry tool tailored for the evaluation of liver T1RR after gadolinium ethoxybenzyl-diethylenetriaminepentaacetic acid administration on 1.

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Hypercalcitoninaemia has been described in patients with pseudohypoparathyroidism (PHP) type 1A and 1B. Elevated calcitonin levels are thought to result from impaired Gsα receptor signaling, leading to multiple hormone resistance. Evidence on the risk of medullary thyroid carcinoma (MTC) or C-cell hyperplasia in PHP patients with hypercalcitoninaemia is lacking.

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Background: MRI is a radiation-free emerging alternative to CT in systemic sclerosis related interstitial lung disease (SSc-ILD) assessment. We aimed to compare a T2 radial TSE and a PD UTE MRI sequence with CT in SSc-ILD extent evaluation and correlations with pulmonary function tests (PFT).

Material And Methods: 29 SSc-ILD patients underwent CT, MRI and PFT.

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Background: COVID-19 is a pandemic disease affecting predominantly the respiratory apparatus with clinical manifestations ranging from asymptomatic to respiratory failure. Chest CT is a crucial tool in diagnosing and evaluating the severity of pulmonary involvement through dedicated scoring systems. Nonetheless, many questions regarding the relationship of radiologic and clinical features of the disease have emerged in multidisciplinary meetings.

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In response to the low representation of Latinx adults in STEM occupations, this community-based participatory action research study aims to increase the number of middle school youths developing STEM career identities and entering high school with the intention to pursue STEM careers. The students were provided with summer and after-school activities focusing on network science and career development curricula. Using a quasi-experimental pretest-posttest design and career narratives, this study examined the changes in STEM and career self-efficacy, as well as career identity.

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  • The sustentaculum tali is often displaced in calcaneal fractures and is crucial for surgical reference during fixation.
  • The study analyzed patients with isolated calcaneal fractures, focusing on the association between fracture patterns and sustentaculum tali involvement, using CT imaging and AOFAS scores for outcomes.
  • Results showed that more severe fracture types (Sanders type 3 and 4) are more likely to involve the sustentaculum, and those with intact sustentaculum had significantly better postoperative outcomes.
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Background: Colon cancer in young patients is often associated with hereditary syndromes; however, in early-onset rectal cancer, mutations of these genes are rarely observed. The aim of this study was to analyse the features of the local immune microenvironment and the mutational pattern in early-onset rectal cancer.

Methods: Commonly mutated genes were analysed within a rectal cancer series from the University Hospital of Padova.

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The second wave of COVID-19 occurred in South America in early 2021 and was mainly driven by Gamma and Lambda variants. In this study, we aimed to describe the emergence and local genomic diversity of the SARS-CoV-2 Lambda variant in Argentina, from its initial entry into the country until its detection ceased. Molecular surveillance was conducted on 9356 samples from Argentina between October 2020 and April 2022, and sequencing, phylogenetic, and phylogeographic analyses were performed.

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Objective: Identifying MRI texture parameters able to distinguish inflammation, fibrosis, and residual cancer in patients with naso-oropharynx carcinoma after radiochemotherapy (RT-CHT).

Material And Methods: In this single-centre, observational, retrospective study, texture analysis was performed on ADC maps and post-gadolinium T1 images of patients with histological diagnosis of naso-oropharyngeal carcinoma treated with RT-CHT. An initial cohort of 99 patients was selected; 57 of them were later excluded.

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Background: The newly adopted European directive DE59/2013 mandates adequate patient information in procedures involving ionising radiation. Patient interest in knowing about their radiation dose and an effective communication method for dose exposure remain poorly investigated.

Purpose: This study is aimed at investigating both patient interest in radiation dose and an effective method to communicate radiation dose exposure.

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Background: The role of computed tomography (CT) in the diagnosis and characterization of coronavirus disease 2019 (COVID-19) pneumonia has been widely recognized. We evaluated the performance of a software for quantitative analysis of chest CT, the LungQuant system, by comparing its results with independent visual evaluations by a group of 14 clinical experts. The aim of this work is to evaluate the ability of the automated tool to extract quantitative information from lung CT, relevant for the design of a diagnosis support model.

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  • Peliosis hepatis (PH) is a rare, benign liver condition characterized by blood-filled cystic cavities and is often diagnosed incidentally due to its varied appearance on imaging.
  • A retrospective analysis of 12 patients along with a systematic review of literature from 1990 to 2022 aimed to compile data on PH to enhance diagnosis and characterization.
  • The study found that most patients were asymptomatic, with similar associated conditions and imaging features observed in both the case series and previous literature, highlighting the need for improved recognition of PH in clinical practice.
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  • This study aimed to explore the relationship between bone loss around teeth and the vitality loss of nearby teeth, particularly in relation to root canal treatments.
  • Researchers examined 321 cone-beam computed tomography scans, focusing on crestal bone loss, the presence of periapical disease, and the need for root canal treatments in 2001 teeth.
  • Findings revealed a strong link between crestal bone loss and the likelihood of root canal treatments, with significant associations found between crestal bone loss and increased rates of periapical disease.
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The COVID-19 pandemic has lately been driven by Omicron. This work aimed to study the dynamics of SARS-CoV-2 Omicron lineages during the third and fourth waves of COVID-19 in Argentina. Molecular surveillance was performed on 3431 samples from Argentina, between EW44/2021 and EW31/2022.

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