Status of Cardiac Magnetic Resonance in Clinical Application and Scientific Research: A National Survey in China.

Background: Cardiovascular magnetic resonance (CMR) is rapidly expanding in China, yet comprehensive national data on its clinical application and research status are limited. This study aims to evaluate the current landscape of CMR across the country.

Methods: An electronic survey was conducted targeting two groups: physicians trained at the Fuwai Fellowship Program and members of the Chinese Society of Radiology.

Nonsurgical periodontal treatment improved the abnormal trimethylamine n-oxide metabolism in Apoe mice with periodontitis.

Background And Aims: Periodontitis aggravated atherosclerosis and the plasma level of the atherosclerosis virulence factor trimethylamine n-oxide (TMAO) increased in Apoe mice was reported. Nonsurgical periodontal treatment (NSPT) is an important treatment method for periodontitis. Therefore, we investigate how NSPT ameliorates the metabolism of TMAO in Apoe mice with periodontitis.

The effects of restraint stress and orthodontic tooth movements on the intestinal epithelial structure and metabolic function in rats.

Chronic stress and orthodontic treatment have been revealed to trigger systemic stress responses in rats. This study aimed to investigate the effects of restraint stress and orthodontic treatment on the intestinal epithelial structure, barrier function, flora, and metabolism in rats. Twenty 8-week-old male Wistar rats were randomly divided into four groups: sham-stressed non-orthodontic (CC), sham-stressed orthodontic (CO), stressed non-orthodontic (SC), and stressed orthodontic (SO).

A novel portable and radiation-free method for assessing scoliosis: an accurate and reproducible study.

Background: This study aimed to evaluate the accuracy and reproducibility of a newly developed portable and radiation-free three-dimensional spine sensing system (3D-SSS) for scoliosis assessment.

Methods: A total of 145 patients underwent full-spine imaging using the EOS imaging system, and 3D-SSS data were collected between February 2023 and April 2023. A radiologist used sterEOS software to reconstruct the spine in 3D and obtain the Cobb angle.

Photon-counting CT Spectral Localizer Radiographs for Lumbar Areal Bone Mineral Density Quantification: A Clinical Study on Accuracy, Reliability, and Diagnostic Performance for Osteoporosis.

Rationale And Objectives: To explore the accuracy, reliability, and diagnostic performance of photon-counting CT (PCCT) spectral localizer radiographs (SLRs) for quantifying lumbar areal bone mineral density (BMD) and detecting osteoporosis (T-score ≤-2.5).

Materials And Methods: This prospective study recruited consecutive participants from April to July 2024.

Transcranial vibration stimulation at 40 Hz induced neural activity and promoted the coupling of global brain activity and cerebrospinal fluid flow.

Background: Neuroscience advances have highlighted the potential of non-invasive brain stimulation in influencing cognitive and emotional processes. Conventional stimulation methods such as electrical, magnetic, and ultrasound have been studied intensively, but little is known about the mechanical stimulation.

Objective: To investigate the effects of 40 Hz transcranial vibration stimulation (TVS) on human brain activity, specifically focusing on changes in the Amplitude of Low-Frequency Fluctuation (ALFF), fractional ALFF (fALFF) and Regional Homogeneity (ReHo) as measures of spontaneous brain activity.

Association of dietary and plasma fatty acids with periodontitis: Results from the 2009-2014 National Health and Nutrition Examination Survey and Mendelian randomization study.

Background: The authors aimed to explore the association of fatty acids with periodontitis and its severity and to assess causality using Mendelian randomization (MR) analyses.

Methods: Data for participants with complete data were extracted from the 2009-2014 National Health and Nutrition Examination Survey. Weighted logistic regression was used to explore the relationship between dietary fatty acids and periodontitis and its severity.

Measurement of biomechanical properties of transversely isotropic biological tissue using traveling wave expansion.

The anisotropic mechanical properties of fiber-embedded biological tissues are essential for understanding their development, aging, disease progression, and response to therapy. However, accurate and fast assessment of mechanical anisotropy in vivo using elastography remains challenging. To address the dilemma of achieving both accuracy and efficiency in this inverse problem involving complex wave equations, we propose a computational framework that utilizes the traveling wave expansion model.

Crosslinked Versus Non-Crosslinked Resorbable Collagen Membranes for Periodontal Regeneration: A Multicenter, Randomized, Double-Blind, Non-Inferiority Clinical Trial.

Aim: This study aimed to evaluate and compare the results of combination therapy involving bone grafting and two different resorbable collagen membranes in 1-, 2- and 3-wall infrabony defects.

Methods: A total of 174 patients with infrabony defects (≥ 7 mm periodontal probing depth) were randomized to receive deproteinized bovine bone mineral (DBBM) with either a native porcine non-crosslinked collagen membrane (N-CM, control, n = 87) or a novel porcine crosslinked collagen membrane (C-CM, test, n = 87). Clinical parameters, including periodontal probing depth (PPD), clinical attachment level (CAL), and gingival recession (GR), were recorded at baseline, 12 weeks, and 24 weeks.

Effect of different restorative design and materials on stress distribution in cracked teeth: a finite element analysis study.

Objectives: To compare the stress distribution and crack propagation in cracked mandibular first molar restored with onlay, overlay, and two types of occlusal veneers using two different CAD/CAM materials by Finite Element Analysis (FEA).

Materials And Methods: A mandibular first molar was digitized using a micro CT scanning system in 2023. Three-dimensional dynamic scan data were transformed, and a 3D model of a cracked tooth was generated.

Recent advances in nanoarchitectonics of two-dimensional nanomaterials for dental biosensing and drug delivery.

Two-dimensional (2D) nanoarchitectonics involve the creation of functional material assemblies and structures at the nanoscopic level by combining and organizing nanoscale components through various strategies, such as chemical and physical reforming, atomic and molecular manipulation, and self-assembly. Significant advancements have been made in the field, with the goal of producing functional materials from these nanoscale components. 2D nanomaterials, in particular, have gained substantial attention due to their large surface areas which are ideal for numerous surface-active applications.

Current status and influencing factors of missing appointments in patients with periodontitis: a cross-sectional study.

Aim: This study aims at analyze the current status and influencing factors of missing appointments in patients with periodontitis after supragingivgy scaling, and to explore the measures to reduce the rate of missing appointments, so as to provide a reference for the prevention of periodontitis and oral health promotion.

Methods: This study adopted convenience sampling method to select 204 patients who made appointments for revisits in Grade III and Grade A stomatological hospitals in Guizhou Province from May 2021 to May 2022 as the study objects, and conducted the investigation by general data questionnaire, patient satisfaction questionnaire and modified Dental Anxiety Scale (MDAS).

Results: The rate of missing appointments in patients with periodontitis was 64.

Prognostic Value of Coronary CT Angiography-Derived Quantitative Flow Ratio in Suspected Coronary Artery Disease.

Background The prognostic value of coronary CT angiography (CTA)-derived quantitative flow ratio (CT-QFR) remains unknown. Purpose To determine the prognostic value of CT-QFR in predicting the long-term outcomes of patients with suspected coronary artery disease (CAD) in comparison with invasive coronary angiography (ICA)/SPECT and to determine the influence of prior percutaneous coronary intervention (PCI) on the prognostic value of CT-QFR. Materials and Methods In this secondary analysis of the prospective international CORE320 study, 379 participants who underwent coronary CTA and SPECT within 60 days before ICA between November 2009 and July 2011 were included for follow-up.

Effects of restraint stress and orthodontic treatment on physical and psychological states in rats.

Objective: To explore the effects of restraint stress and orthodontic tooth movement on the body weight and behavior of rats.

Materials And Methods: Twenty 8-week-old male Wistar rats were randomly divided into four groups: sham stress nonorthodontic (CC), sham stress orthodontic (CO), stress nonorthodontic (SC) and stress orthodontic (SO). Rats in the stress group were subjected to restraint stress for 21 days, and those in the orthodontic group received molar retraction on days 8 to 21 (D8-D21).

HiFi-Syn: Hierarchical granularity discrimination for high-fidelity synthesis of MR images with structure preservation.

Synthesizing medical images while preserving their structural information is crucial in medical research. In such scenarios, the preservation of anatomical content becomes especially important. Although recent advances have been made by incorporating instance-level information to guide translation, these methods overlook the spatial coherence of structural-level representation and the anatomical invariance of content during translation.

Investigating the peri-saphenous vein graft fat attenuation index on computed tomography angiography: relationship with progression of venous coronary artery bypass graft disease and temporal trends.

Background: To clarify the fat attenuation index (FAI) change trend of peri-saphenous vein graft (SVG) and determine the association between FAI and graft disease progression based on CCTA images.

Methods: Patients with venous coronary artery bypass grafts (CABGs) were consecutively enrolled in this retrospective study. In study 1, 72 patients who had undergone 1, 3, and 5 years of CCTA examinations without graft occlusion were recruited, and generalized estimation equation was used to analyze the peri-SVG FAI change trend over time.

A 3D fast MR elastography sequence with interleaved multislab acquisition and Hadamard encoding.

Purposes: To enhance the functional capability of MRI, this study aims to develop a novel MR elastography (MRE) sequence that achieves rapid acquisition without distortion artifacts.

Methods: A displacement-encoded stimulated echo (DENSE) with multiphase acquisition scheme was used to capture wave images. A center-out golden-angle stack-of-stars sampling pattern was introduced for improved SNR and data incoherence.

Performance of iodine quantification through high-pitch dual-source photon-counting CT: a phantom study.

Purpose: To investigate the feasibility and accuracy of iodine quantification using PCD-CT in standard-pitch and high-pitch scanning at different scan parameters in a phantom model.

Materials And Methods: Four inserts with known iodine concentrations (2, 5, 10, and 15 mg/mL) were placed in the removable CT phantom and scanned using high-pitch (3.2) and standard-pitch (0.

Ultrahigh-Resolution Photon-Counting Detector CTA of the Head and Neck: Image Quality Assessment and Vascular Kernel Optimization.

Head and neck CTA requires fine-detail evaluation, including characterization of potentially very small vessels and intrastent lumina. Blooming artifacts also hinder evaluation. The purpose of this study was to evaluate image quality of ultrahigh-resolution (UHR) photon-counting detector (PCD) CTA of the head and neck and to explore variation of image quality across body vascular (Bv) reconstruction kernels.

acts as a pathobiont promoting the biofilm virulence and cariogenicity of in adult severe caries.

Adult severe caries (ASC) brings severe oral dysfunction and treatment difficulties to patients, and yet no clear pathogenic mechanism for it has been found. This study is focused on the composition of dental plaque microbiome profiles in order to identify disease-relevant species and to investigate into their interactions with the . Samples of dental plaque were collected for metagenomic analysis.

Photon-counting Detector CT for Liver Fat Quantification: Validation across Protocols in Metabolic Dysfunction-associated Steatotic Liver Disease.

Background Traditional energy-integrating detector CT has limited utility in accurately quantifying liver fat due to protocol-induced CT value shifts, but this limitation can be addressed by using photon-counting detector (PCD) CT, which allows for a standardized CT value. Purpose To develop and validate a universal CT to MRI fat conversion formula to enhance fat quantification accuracy across various PCD CT protocols relative to MRI proton density fat fraction (PDFF). Materials and Methods In this prospective study, the feasibility of fat quantification was evaluated in phantoms with various nominal fat fractions.

In Vivo visualization of white matter fiber tracts in the brainstem using low flip angle double echo 3D gradient echo imaging at 3T.

Background: White matter (WM) fiber tracts in the brainstem communicate with various regions in the cerebrum, cerebellum, and spinal cord. Clinically, small lesions, malformations, or histopathological changes in the brainstem can cause severe neurological disorders. A direct and non-invasive assessment approach could bring valuable information about the intricate anatomical variations of the white matter fiber tracts and nuclei.