Determining the Optimal Energy Level of Virtual Monoenergetic Images in Dual-Source CT for Diagnosis of Bowel Obstruction and Colitis.

Images from 64 patients undergoing an enhanced abdominal-pelvis scan at portal phase in dual-energy CT mode for the diagnosis of colitis or bowel obstruction were retrospectively analyzed. Acquisitions were performed on a third-generation dual-source CT (DSCT) 100/Sn150 kVp. Mixed images were generated, as well as virtual monoenergetic images (VMIs) at 40/50/60/70 keV.

Search for Na in novae supported by a novel method for measuring femtosecond nuclear lifetimes.

Classical novae are thermonuclear explosions in stellar binary systems, and important sources of Al and Na. While γ rays from the decay of the former radioisotope have been observed throughout the Galaxy, Na remains untraceable. Its half-life (2.

Left gastric vein embolization during TIPS placement for acute variceal bleeding has no effect on bleeding recurrence: Results of a multicenter study.

Purpose: The purpose of this study was to evaluate whether concomitant left gastric vein embolization (LGVE) during transjugular intrahepatic portosystemic shunt (TIPS) for acute variceal hemorrhage could reduce the risk of bleeding recurrence.

Material And Method: A national multicenter observational study was conducted in 14 centers between January 2019 and December 2020. All cirrhotic patients who underwent TIPS placement for acute variceal bleeding were included.

Retrospective Analysis of Doses Delivered during Embolization Procedures over the Last 10 Years.

Background: This study aimed to retrospectively analyze dosimetric indicators recorded since 2012 for thoracic, abdominal or pelvic embolizations to evaluate the contribution of new tools and technologies in dose reduction. Methods: Dosimetric indicators (dose area product (DAP) and air kerma (AK)) from 1449 embolizations were retrospectively reviewed from August 2012 to March 2022. A total of 1089 embolizations were performed in an older fixed C-Arm system (A1), 222 in a newer fixed C-Arm system (A2) and 138 in a 4DCT system (A3).

Evidence of Partial Seniority Conservation in the πg_{9/2} Shell for the N=50 Isotones.

The reduced transition probabilities for the 4_{1}^{+}→2_{1}^{+} and 2_{1}^{+}→0_{1}^{+} transitions in ^{92}Mo and ^{94}Ru and for the 4_{1}^{+}→2_{1}^{+} and 6_{1}^{+}→4_{1}^{+} transitions in ^{90}Zr have been determined in this experiment making use of a multinucleon transfer reaction. These results have been interpreted on the basis of realistic shell-model calculations in the f_{5/2}, p_{3/2}, p_{1/2}, and g_{9/2} proton valence space. Only the combination of extensive lifetime information and large scale shell-model calculations allowed the extent of the seniority conservation in the N=50 g_{9/2} orbital to be understood.

Pharmaceutical Analysis of Peripherally Inserted Central Catheter Requests Increases the Use of Single-Lumen Catheters: A Prospective Pilot Study.

Objectives: Several studies have suggested a strong relationship between the number of peripherally inserted central catheter (PICC) lumens and the risk of complications. The purpose of this study is to evaluate the impact of the intervention of a clinical pharmacist (CP) on the number of lumens of PICC inserted and assess PICC-related complications.

Method: This prospective monocentric study included all consecutive patients from 5 different units who underwent PICC insertions from September 2017 to March 2018.

A Recanalized Umbilical Vein Hypermetabolic Thrombosis Mimicked an Hepatocellular Carcinoma Recurrence: A New Pitfall?

A transarterial left hepatic artery radioembolization involving 90Y microspheres was performed on a cirrhotic man with hypermetabolic 18F-FDG segment III hepatocellular carcinoma. During the 18F-FDG PET/CT follow-up, the disappearance of the hypermetabolic lesion was initially observed. Then, a focal segment III hypermetabolism reappeared mimicking a recurrence before disappearing without any treatment.

Comparison of peak skin dose and dose map obtained with real-time software and radiochromic films in patients undergoing abdominopelvic embolization.

Purpose: The purpose of this study was to compare peak skin dose (PSD) and dose map calculated by Dose-Tracking-System® (DTS) software and measured with radiochromic films in patients undergoing abdominopelvic embolization.

Material And Methods: The PSD measured by radiochromic films (PSD) or calculated by DTS software (PSD) were compared in patients who underwent abdominopelvic embolization between September 2020 and April 2021. Concordance between PSD and PSD was computed using the Lin's concordance correlation coefficient and the clinical concordance using Bland Altman analysis.

Evaluating the Effectiveness of Yttrium-90 Glass Microspheres in the Treatment of Hepatocellular Carcinoma, Intrahepatic Cholangiocarcinoma, and Metastatic Colorectal Cancer in Practice: Protocol for the Prospective PROACTIF Phase IV Registry Study in France.

Primary Objective: Recently, selective internal radiation therapy using yttrium-90 (Y90) glass microspheres (TheraSphere™) was approved for reimbursement by health authorities in France. The PROACTIF study aims to gather data on effectiveness, patient quality of life, and safety with use of Y90 glass microspheres in real-world clinical settings in France.

Inclusion Criteria: Patient with a diagnosis of hepatocellular carcinoma (HCC), intrahepatic cholangiocarcinoma (iCC), and/or metastatic colorectal cancer (mCRC) who was treated with a dose of Y90 glass microspheres that has been reimbursed in France and who do not oppose use of their personal medical data.

Impact of ultra-low dose CT acquisition on semi-automated RECIST tool in the evaluation of malignant focal liver lesions.

Purpose: To compare the evaluation of malignant focal liver lesions (FLLs) using a semi-automated RECIST tool with a standard and an ultra-low dose (ULD) computed tomography (CT) protocol.

Materials And Methods: Thirty-four patients with malignant FLLs underwent two abdominal-pelvic CT examinations one using a standard protocol and one using an ULD protocol. There were 23 men and 11 women with a mean age 64.

Clinical evaluation of a dose management system-integrated 3D skin dose map by comparison with radiochromic films.

Objectives: To validate the performance of an automatic tool to estimate a patient's peak skin dose (PSD) and a skin dose map from data collected by a radiation dose management system (RDMS) during interventional procedures.

Methods: In total, 288 eligible consecutive patients undergoing abdominopelvic embolisation or planned coronary angioplasty using radiochromic films were screened between June 2018 and March 2019. For 98 included patients, PSD was measured using radiochromic films (PSD) and computed by RDMS (PSD) using one flat and two anthropomorphic phantoms.

Isospin Properties of Nuclear Pair Correlations from the Level Structure of the Self-Conjugate Nucleus ^{88}Ru.

The low-lying energy spectrum of the extremely neutron-deficient self-conjugate (N=Z) nuclide _{44}^{88}Ru_{44} has been measured using the combination of the Advanced Gamma Tracking Array (AGATA) spectrometer, the NEDA and Neutron Wall neutron detector arrays, and the DIAMANT charged particle detector array. Excited states in ^{88}Ru were populated via the ^{54}Fe(^{36}Ar,2nγ)^{88}Ru^{*} fusion-evaporation reaction at the Grand Accélérateur National d'Ions Lourds (GANIL) accelerator complex. The observed γ-ray cascade is assigned to ^{88}Ru using clean prompt γ-γ-2-neutron coincidences in anticoincidence with the detection of charged particles, confirming and extending the previously assigned sequence of low-lying excited states.

Decoding identity from motion: how motor similarities colour our perception of self and others.

For more than 4 decades, it has been shown that humans are particularly sensitive to biological motion and extract socially relevant information from it such as gender, intentions, emotions or a person's identity. A growing number of findings, however, indicate that identity perception is not always highly accurate, especially due to large inter-individual differences and a fuzzy self-recognition advantage compared to the recognition of others. Here, we investigated the self-other identification performance and sought to relate this performance to the metric properties of perceptual/physical representations of individual motor signatures.

Experimental evaluation of a radiation dose management system-integrated 3D skin dose map by comparison with XR-RV3 Gafchromic® films.

Objective: To assess the interactive Skin Dose Map® tool (SDM) integrated to the radiation dose management system (RDMS) DoseWatch® with Gafchromic® films for implementation in routine practice.

Methods: A retrospective dose estimation software SDM was used to calculate Peak Skin Dose (PSD) and display the patient skin dose distribution. PSD was calculated with a triangle mesh of 0.

PICC management led by technicians: Establishment of a cooperation program with radiologists and evaluation of complications.

Purpose: The purpose of this study was to evaluate a cooperation program in order to compare incidence of complications after peripherally inserted central catheter (PICC) placement between radiologists and technicians.

Materials And Methods: PICC placement technique was standardized with ultrasound-guided puncture and fluoroscopic guidance. Numbers of PICC delegated to technicians, and PICC placement difficulties, were prospectively recorded for the whole study population whereas complications such as PICC infection, deep venous thrombosis and catheter occlusion were prospectively recorded until PICC removal for a subgroup of patients included during one month.

Defining the core components of Family Navigation for autism spectrum disorder.

This study aimed to define the core components of Family Navigation for autism spectrum disorder, a promising intervention to reduce disparities in care for this population. Teams from four trials of Family Navigation for autism spectrum disorder completed the Template for Intervention Description and Replication checklist to outline intervention components. Through intervention component analysis and qualitative synthesis, we identified 11 core components across three domains: Training and Supervision, Navigator Tools, and Navigator Activities.

[Acute and chronic pathologies of the thoracic aorta: From diagnosis to treatment].

Aortic pathologies benefit from imaging innovation and interventional radiology developments in order to improve patient management. At the early phase, vital risk should be considered. Whole body CT scan evaluate the complete aorta and its branches to assess the pathology and to choose the best approach between surgery or interventional radiology (fenestration, stentgraft, peripheral stenting).

A mixed-methods process evaluation of Family Navigation implementation for autism spectrum disorder.

There is growing interest in Family Navigation as an approach to improving access to care for children with autism spectrum disorder, yet little data exist on the implementation of Family Navigation. The aim of this study was to identify potential failures in implementing Family Navigation for children with autism spectrum disorder, using a failure modes and effects analysis. This mixed-methods study was set within a randomized controlled trial testing the effectiveness of Family Navigation in reducing the time from screening to diagnosis and treatment for autism spectrum disorder across three states.

Assessment of patient's peak skin dose during abdominopelvic embolization using radiochromic (Gafchromic) films.

Purpose: To assess the value of the routine use of radiochromic films in abdominopelvic embolization procedures to improve patient follow-up.

Methods: A total of 55 patients who underwent transcatheter abdominopelvic embolization were prospectively included. Six types of procedures were evaluated including hepatic chemoembolization (HCE), gonadal veins embolization (GVE), uterine elective embolization (UEE), uterine urgent embolization (UUE), abdominal elective embolization (AEE), and abdominal urgent embolization (AUE).

Detection and characterization of focal liver lesions with ultra-low dose computed tomography in neoplastic patients.

Purpose: The purpose of this study was to evaluate and compare the diagnostic accuracy of ultra-low dose (ULD) computed tomography (CT) with that of standard dose (STD) CT in the detection and characterization of focal liver lesions in neoplastic patients.

Materials And Methods: A total of 177 neoplastic patients who underwent two abdominopelvic CT examinations (one with STD and one with ULD protocol) for suspected focal liver lesions were included. There were 103 men and 74 women with a mean age of 64.

Post-partum hemoperitoneum: Do not miss false aneurysm as a cause of bleeding.

A 27-year-old woman underwent a first vaginal delivery at our institution. She returned four days after delivery, presenting with abdominal pain and an unexplained drop in her hemoglobin value, without external bleeding. The initial computed tomography abdominal scan revealed an isolated diffuse hemoperitoneum.

Template-free nanosized faujasite-type zeolites.

Nanosized faujasite (FAU) crystals have great potential as catalysts or adsorbents to more efficiently process present and forthcoming synthetic and renewable feedstocks in oil refining, petrochemistry and fine chemistry. Here, we report the rational design of template-free nanosized FAU zeolites with exceptional properties, including extremely small crystallites (10-15 nm) with a narrow particle size distribution, high crystalline yields (above 80%), micropore volumes (0.30 cm(3) g(-1)) comparable to their conventional counterparts (micrometre-sized crystals), Si/Al ratios adjustable between 1.