Comparative analysis of traditional and integrated approaches to radiology training for residents.

Background: The study aims to conduct a comparative analysis of traditional and integrated approaches to radiology teaching in order to evaluate the effectiveness of novel educational methods.

Methods: The study was conducted in Shenzhen, China, between January and December 2023. It involved 100 radiology residents who were randomly assigned to either a traditional training (TT) group or an integrated training (IT) group.

The Exosomes Derived From Bone Marrow Mesenchymal Stem Cells Alleviate Inflammatory Injury in Heart Failure Disease by Enhancing the Expression of KLF4.

Objective: The aim of this study is to investigate the impact and mechanism of action of exosomes derived from bone marrow mesenchymal stem cells (BMSCs) in the treatment of heart failure (HF).

Methods: The analysis of gene sequencing data set was employed to identify potential therapeutic target proteins for HF. Subsequently, H9C2 cells and Sprague-Dawley (SD) rats were utilized as experimental models to simulate doxorubicin hydrochloride (Doxorubicin, Dox)-induced myocardial injury.

Development and validation of a dynamic contrast-enhanced magnetic resonance imaging-based habitat and peritumoral radiomic model to predict axillary lymph node metastasis in patients with breast cancer: a retrospective study.

Background: The heterogeneity within breast cancer and its microenvironment are associated with metastasis. Analyzing distinct tumor subregions using habitat analysis and characterizing the tumor microenvironment through radiomics may be valuable for predicting axillary lymph node metastasis (ALNM) in breast cancer. This study aimed to develop and validate a nomogram for predicting ALNM in breast cancer patients by integrating clinicopathological, intra- or peri-tumoral radiomic, and habitat signatures based on dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) and determine the optimal peritumoral region size for accurate prediction.

Application of Mixed Reality Technology in the Planning of PCNL for Special Types of Complex Upper Urinary Stones: A Pilot Study.

Objective: To evaluate the application of Mixed Reality technology in the planning of ultrasound-guided percutaneous nephrolithotomy (PCNL) for special types of complex upper urinary stones.

Methods: Clinical data of 15 patients with complex upper urinary stones undergoing ultrasound-guided PCNL were analyzed which included pelvic ectopic kidney, horseshoe kidney, spinal deformity, and transplant kidney. Based on preoperative computed tomography urography (CTU) data, digital 3-dimensional reconstruction is performed, and AI mixed reality is used to project 3-dimensional images in real space.

Long-term outcomes of Allium ureteral stent as a treatment for ureteral obstruction.

Ureteral obstruction is a prevalent urological condition associated with significant complications. The purpose of our study was to assess the safety and efficacy of a novel self-expanding, large caliber, biocompatible polymer-coated ureteral stent (Allium) for the treatment of ureteral obstructions. We conducted a retrospective analysis of data from patients who underwent Allium ureteral stent placement at our institute between November 2018 and May 2023.

Meta-analysis of the effects of bundle interventions on ICU-acquired weakness intervention.

Background: Intensive care unit acquired weakness (ICU-AW) is a secondary neuromuscular complication in critically ill patients, characterized by profound weakness in all four limbs. Studies have shown that bundles of care are nursing strategies that combine a series of evidence-based interventions, which collectively optimize patients' clinical outcomes compared to individual interventions.

Objective: This study aims to conduct a meta-analysis of the effects of bundle interventions on ICU-AW deeply exploring the characteristics of bundle interventions, patient outcomes related to ICU-AW, and primarily investigating the effects of bundle interventions on ICU-AW.

The role of multiparametric MRI in predicting lymphovascular invasion in breast cancer patients.

This study aims to investigate the efficacy of multifactorial MRI in diagnosing breast cancer, specifically in the context of predicting lymphovascular invasion (LVI). The patients were stratified into two groups: the primary group (100 patients) and the validation group (100 patients), based on essential characteristics. Multifactorial MRI, encompassing tumor size evaluation, diffusion coefficient assessment and dynamic contrast enhancement, was employed for patient examination.

Needle-perc-assisted endoscopic surgery versus retrograde intrarenal surgery for the treatment of 1- to 2-cm lower-pole renal stones in patients with unfavorable infundibulopelvic anatomy: a matched-pair analysis.

Purpose: To compare the safety and efficacy of needle-perc-assisted endoscopic surgery (NAES) and retrograde intrarenal surgery (RIRS) for the treatment of 1- to 2-cm lower-pole stones (LPS) in patients with complex infundibulopelvic anatomy.

Methods: Between June 2020 and July 2022, 32 patients with 1- to 2-cm LPS and unfavorable lower-pole anatomy for flexible ureteroscopy were treated with NAES. The outcomes of these patients were compared with patients who underwent RIRS using matched-pair analysis (1:1 scenario).

Application of machine learning in the analysis of multiparametric MRI data for the differentiation of treatment responses in breast cancer: retrospective study.

Objective: The objective of this study is to develop and validate a multiparametric MRI model employing machine learning to predict the effectiveness of treatment and the stage of breast cancer.

Methods: The study encompassed 400 female patients diagnosed with breast cancer, with 200 individuals allocated to both the control and experimental groups, undergoing examinations in Shenzhen, China, during the period 2017-2023. This study pertains to retrospective research.

Mirabegron for medical expulsive therapy of ureteral stones: a systematic review and meta-analysis.

Objective: To systematically review and quantitively evaluate the efficacy and safety of mirabegron as a medical expulsive therapy for ureteral stones.

Methods: We performed an extensive search of the EMBASE and PubMed databases for studies examining the use of mirabegron as a medical expulsive therapy for ureteral stones. The primary outcome measure assessed was the stone expulsion rate (SER), while the secondary outcomes evaluated were the stone expulsion interval (SEI) and the occurrence of pain episodes during follow-up.

Terrain effect on atmospheric process in seasonal ozone variation over the Sichuan Basin, Southwest China.

Terrain effect is challenging for understanding atmospheric environment changes under complex topography. This study targets the Sichuan Basin (SCB), a deep basin isolated by plateaus and mountains in Southwest China, by employing WRF-Chem with integrated process rates (IPR) analysis to characterize the terrain-driven seasonal variations of tropospheric ozone (O) with atmospheric physical and chemical processes. Results show that the basin terrain exerts reversed impacts on regional air quality changes by aggravating summertime and alleviating wintertime near-surface O with the relative contributions oscillating seasonally between -40% and 40% in SCB.

Adaptive parameter estimation for the expanded sandwich model.

An expanded-sandwich system is a nonlinear extended block-oriented system in which memoryless elements in conventional block-oriented systems are displaced by memory submodels. Expanded-sandwich system identification has received extensive attention in recent years due to the powerful ability of these systems to describe actual industrial systems. This study proposes a novel recursive identification algorithm for an expanded-sandwich system, in which an estimator is developed on the basis of parameter identification error data rather than the traditional prediction error output information.

Evaluation of a continuous-time random-walk diffusion model for the differentiation of malignant and benign breast lesions and its association with Ki-67 expression.

The purpose of the current study was to evaluate the performance of a continuous-time random-walk (CTRW) diffusion model for differentiating malignant and benign breast lesions and to consider the potential association between CTRW parameters and the Ki-67 expression. Sixty-four patients (46.2 ± 11.

Differentiation of Small Gastrointestinal Stromal Tumor and Gastric Leiomyoma with Contrast-Enhanced CT.

Objective: The value of multiphase contrast-enhanced CT in differentiating gastrointestinal stromal tumors (GISTs) and gastric leiomyomas (GLMs) which were ≤3 cm was evaluated using machine learning.

Methods: A retrospective analysis was conducted on 45 cases of small gastric wall submucosal tumors (including 22 GISTs and 23 GLMs) with pathologically confirmed diameter ≤3 cm and completed multiphase CT-enhanced scan images. The CT features including tumor location, maximum diameter, shape, margins, growth pattern, plain/enhanced CT value, cystic degeneration, calcification, ulcer, progressive reinforcement, perilesional lymph nodes, and the CT value ratio of the tumor to the aorta at the same level in the enhanced phase III scan of the two groups were evaluated.

Endoscopic treatment of urothelial encrusted pyelo-ureteritis disease: A case series.

Background: Urothelial encrusted pyelo-ureteritis disease is an infrequent condition and there is no unified surgical treatment and reference standard to consult. We have used a minimally invasive endoscopic method to treat three such cases, which yielded excellent results.

Case Summary: The first case was a 45-year-old man who had unilateral ureteropelvic junction (UPJ) atresia and contralateral stenosis and was treated by double endoscopic surgery using an anterograde percutaneous nephroscope coupled with a rigid retrograde ureteroscope.

Application value of T2 fluid-attenuated inversion recovery sequence based on deep learning in static lacunar infarction.

Background: Regular monitoring of static lacunar infarction (SLI) lesions plays an important role in preventing disease development and managing prognosis. Magnetic resonance imaging is one method used to monitor SLI lesions.

Purpose: To evaluate the image quality of the T2 fluid-attenuated inversion recovery (T2-FLAIR) sequence using artificial intelligence-assisted compressed sensing (ACS) in detecting SLI lesions and assess its clinical applicability.

High-fidelity photonic quantum logic gate based on near-optimal Rydberg single-photon source.

Compared to other types of qubits, photon is one of a kind due to its unparalleled advantages in long-distance quantum information exchange. Therefore, photon is a natural candidate for building a large-scale, modular optical quantum computer operating at room temperature. However, low-fidelity two-photon quantum logic gates and their probabilistic nature result in a large resource overhead for fault tolerant quantum computation.

Ultrasound-guided renal access and balloon dilation for PCNL in the prone position: results of a multicenter prospective observational study.

Purpose: To investigate the safety and efficacy of ultrasound-guided renal access and tract dilation using balloon dilators, as well as to identify suitable patients for this technique.

Methods: Consecutive patients undergoing ultrasound-guided PCNL using balloon dilators between December 2019 and June 2020 in seven large medical centers from China were prospectively enrolled. Demographic and perioperative parameters of the patients were collected.

Genipin protects against mitochondrial damage of the retinal pigment epithelium under hyperglycemia through the pathway mediated by the signaling axis.

Background: To investigate the protective effect and mechanism of genipin (GE) on mitochondrial damage in retinal pigment epithelial (RPE) cells induced by high glucose.

Methods: Differential genes of GE in the treatment of diabetic retinopathy (DR) were screened by the Gene Expression Omnibus (GEO) database. Differential genes located in the pathway were obtained.

High-resolution NMR metabolomics of patients with subjective cognitive decline plus: Perturbations in the metabolism of glucose and branched-chain amino acids.

Background: "Subjective cognitive decline plus" (SCD plus) increases the risk of Alzheimer's disease (AD), and this may be an early stage of AD that precedes amnestic mild cognitive impairment (aMCI). We examined alterations of serum metabolites and metabolic pathways in SCD plus subjects using H-magnetic resonance spectroscopy (H NMR) metabolomics.

Methods: Serum samples from subjects with SCD plus (n = 32), aMCI (n = 33), and elderly controls (ECs, n = 41) were analyzed using an 800MHz NMR spectrometer.

Value of Intravoxel Incoherent Motion (IVIM) Imaging for Differentiation between Intrahepatic Cholangiocarcinoma and Hepatocellular Carcinoma.

Efficient noninvasive imaging techniques in the differentiation of intrahepatic cholangiocarcinoma (ICC) and hepatocellular carcinoma (HCC) are very important because of their different management and prognosis. Our purpose was to evaluate the difference of parameters extracted from intravoxel incoherent motion (IVIM) diffusion-weighted imaging (DWI) between the two groups and their performance for the differentiation, as well as the significance of perfusion information. IVIM studies (9 -values) in 41 patients with either ICC or HCC were reviewed retrospectively by two observers.

Myocardial First-Pass Perfusion With Increased Anatomic Coverage at 3 T Using Autocalibrated Multiband Imaging.

Background: Myocardial first-pass perfusion (FPP) imaging is a useful cardiac MRI method for the diagnosis of coronary artery disease. However, conventional 2D multislice FPP acquisitions usually have gaps between myocardium slices, which limits the overall assessment of myocardial ischemia.

Purpose: To increase the anatomic coverage of myocardial FPP imaging at 3 T by implementing both autocalibrated multiband (MB) acquisition and k-t space acceleration with compress sensing (CS) reconstruction, without the need for additional reference scans.