Publications by authors named "Sylvain Bodard"

Objectives: Some renal masses remain indeterminate after both contrast-enhanced CT (CE-CT) and contrast-enhanced MRI (CE-MRI), with uncertainty concerning their cystic or solid composition, raising an issue in patient management. The aim of this article was to assess the diagnostic performance of contrast-enhanced ultrasound (CEUS) in the characterization of indeterminate renal masses in this specific context.

Materials And Methods: Starting from CEUS examinations investigating renal masses, we retrospectively identified patients with renal masses that remained indeterminate after both unenhanced and enhanced CT and MRI.

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Background: Renal manifestations in patients with recessive dystrophic epidermolysis bullosa (RDEB) due to collagen VII deficiency have only been described in case series and could thus be underestimated.

Objectives: We aimed to describe the prevalence and types of kidney disease in a large cohort of patients with RDEB.

Methods: We conducted a retrospective study in two Parisian reference centers for RDEB and included patients with at least two concurrent blood and urine analyses.

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Objective: This study aimed to quantitatively assess hepatic steatosis using multiparametric 2-D ultrasound techniques in a choline-deficient high-fat diet minipig model, comparing the results with histological analysis at two time points.

Methods: Quantitative ultrasound (QUS) such as attenuation coefficient, backscatter ratio and speed of sound estimation, shear wave elastography and ultrasound localization microscopy, was performed on 17 minipigs. Histological analysis served as the ground truth.

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We present an open-source code for 3D super-resolution ultrasound imaging. Open-3DULM was applied to transcranial imaging in habituated awake mice. Comparative analysis reveals that isoflurane anesthesia induces significant vasodilation and increased cerebral blood flow (CBF) in veins, while only a subset of arteries exhibits these effects compared to the awake state.

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Rationale And Objectives: End-stage renal disease is characterized by an irreversible decline in kidney function. Despite a risk of chronic dysfunction of the transplanted kidney, renal transplantation is considered the most effective solution among available treatment options. Clinical attributes of graft survival prediction, such as allocation variables or results of pathological examinations, have been widely studied.

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Deep brain structures are supplied by perforating arteries, which are too thin to be observed with non-invasive and widely available clinical imaging methods. In moyamoya disease, main arteries in the base of the brain progressively narrow, and perforating arteries grow densely and tortuously to compensate the lack of blood supply in deep brain structures. The aim of this study is to evaluate the efficacy of transcranial ultrasound localization microscopy (ULM) in visualizing perforating arteries, utilizing a standard low-frame-rate ultrasound clinical scanner and contrast sequences commonly employed in hospital settings.

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Background: Parents' perceptions of their child's mental health play a crucial role in their decision to seek mental health services. Additionally, mental health literacy, which includes knowledge about mental health disorders, is essential for identifying, managing, and preventing mental health problems. Online health information searches are a vital resource for parents of children with attention deficit hyperactivity disorder (ADHD)- one of the most common neurodevelopmental disorders- as they provide emotional support and information on risk factors, treatments, and prognosis.

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Purpose: Navigation and robotic systems aim to improve the accuracy and efficiency of percutaneous image-guided interventions, but the evaluation of their autonomy and integration of advanced imaging and artificial intelligence (AI) is lacking. The purpose of this study was to evaluate the level of automation and integration of advanced imaging and artificial intelligence in navigation and robotic systems for percutaneous image-guided interventions, using established and novel metrics to categorize and compare their capabilities.

Materials And Methods: Following PRISMA guidelines, a systematic review was conducted to identify studies on clinically validated navigation and robotic systems published between 2000 and May 2024.

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Interventional radiology (IR) has aided advances in the diagnosis and treatment of lung pathologies through procedures such as percutaneous biopsy, tumor ablation and drainage of intra-thoracic collections. The success and safety of these interventions largely depend on timely and accurate needle/device placement. Additionally, there is an inherent need to minimize radiation exposure during image-guided procedures.

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Artificial intelligence (AI) and image processing are revolutionising the diagnosis and management of liver cancer. Recent advancements showcase AI's ability to analyse medical imaging data, like computed tomography scans and magnetic resonance imaging, accurately detecting and classifying liver cancer lesions for early intervention. Predictive models aid prognosis estimation and recurrence pattern identification, facilitating personalised treatment planning.

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Renal pseudotumors, which mimic tumors on imaging, pose diagnostic challenges that can lead to unnecessary interventions. Sensing ultrasound localization microscopy (sULM) is an advanced imaging technique that uses ultrasound imaging and microbubbles as sensors to visualize kidney functional units. This study aims to investigate whether sULM could differentiate between renal pseudotumors and tumors based on the presence of glomeruli.

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Background: Historically, women have been shown to underestimate their abilities, while men often assess themselves more accurately or overestimate. This study aims to determine self-assessment accuracy during online Objective Structured Clinical Examinations (OSCEs) according to gender.

Methods: A prospective study was conducted among fourth-year medical students at Paris Cité University during faculty training OSCEs, utilizing Zoom® software for remote participation.

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Purpose: To investigate over 10 years the safety and efficacy of percutaneous cryoablation for the treatment of abdominal wall endometriosis (AWE).

Methods: A systematic review was conducted of literature published between March 2014 and March 2024. Inclusion criteria focused on treatment efficacy studies, while exclusion criteria targeted case reports and studies lacking pertinent outcome data.

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Background: Percutaneous cryoablation (PCA), having shown effectiveness in treating liver, lung, prostate, breast, and kidney tumors, is now gaining attention for the treatment of soft tissue tumors. PCA functions by freezing tissue, which induces ice crystal formation and cell death without damaging collagen structures. Technical considerations include the selection and handling of cryoprobes and cryogenic agents, procedural duration, and choice of image guidance for precision.

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Article Synopsis
  • Autosomal dominant polycystic kidney disease (ADPKD) is a common hereditary kidney condition that causes enlarged kidneys with cysts, high blood pressure, and other complications, making accurate diagnosis essential, especially without clear family history.
  • In a case study of three family members, two sisters were initially misdiagnosed with ADPKD based on imaging, but further MRI and genetic tests ruled it out, showing the importance of advanced testing in diagnosis.
  • The younger daughter was confirmed to have ADPKD through genetic testing, highlighting the variability of the disease and the need for careful diagnostic approaches to ensure appropriate treatment and avoid patient distress.
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The advent of robotic systems in interventional radiology marks a significant evolution in minimally invasive medical procedures, offering enhanced precision, safety, and efficiency. This review comprehensively analyzes the current state and applications of robotic system usage in interventional radiology, which can be particularly helpful for complex procedures and in challenging anatomical regions. Robotic systems can improve the accuracy of interventions like microwave ablation, radiofrequency ablation, and irreversible electroporation.

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Purpose: To evaluate the safety and effectiveness of lateral or posterolateral percutaneous vertebroplasty (PVP) of osteolytic C1-C2 lesions performed under computed tomography (CT) guidance and local anesthesia.

Materials And Methods: A retrospective study of 16 consecutive patients (11 females and 5 males; aged from 24 to 86 years; median age, 65.5 years) who underwent 17 lateral or posterolateral PVP was performed.

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Article Synopsis
  • Low-grade oncocytic tumor (LOT) is a rare type of kidney tumor that resembles other renal tumors, making it hard to diagnose; this study aimed to better understand its imaging characteristics.* -
  • Researchers analyzed preoperative imaging from 12 confirmed LOT cases using CT or MRI, finding common features such as well-defined borders and specific patterns of enhancement.* -
  • The study concludes that certain imaging features can suggest LOT, but further research is needed for validation, and a biopsy is recommended before treatment decisions.*
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Article Synopsis
  • This review examines various surgical and nonsurgical treatments for abdominal wall endometriosis to clarify optimal care options due to existing clinical uncertainty.* -
  • A total of 51 articles were analyzed, involving 2674 patients, showing that surgical methods had the best local tumor control and pain relief, with a median local tumor control rate of 100%.* -
  • Minor adverse events occurred in 17.5% of surgical cases and up to 76.4% with high-intensity focused ultrasound (HIFU), while severe adverse events were noted in 25 surgical patients.*
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Article Synopsis
  • Glomeruli are key kidney filtration units dependent on microcirculation, but traditional imaging struggles to accurately measure their blood flow.
  • The introduction of sensing Ultrasound Localization Microscopy (sULM) allows for better visualization of kidney structures in 2D, though it has limitations in capturing comprehensive depth information.
  • By extending sULM to 3D imaging, this study enhances the ability to analyze glomerular function and assess kidney health, potentially improving diagnostic methods and patient care in clinical settings.
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Purpose: The purpose of this study was to evaluate the technical and clinical success of middle meningeal artery (MMA) embolization performed for symptomatic subacute subdural hematoma (SDH) in patients with cancer.

Methods: This study retrospectively included 23 consecutive patients (12 men, 11 women; median age 61 years, interquartile range: 55.5-75.

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