Unlabelled: Since its delayed re-emergence after non-pharmaceutical interventions (NPIs) against the COVID-19 pandemic, Mycoplasma pneumoniae has caused community-acquired pneumonia outbreaks worldwide. In this study, we aimed to investigate how the clinical characteristics and severity of M. pneumoniae infections have changed after COVID-19 pandemic restriction, in order to enable adequate interpretation of clinical features and response to future M.
View Article and Find Full Text PDFBackground: Surgical site infection (SSI) is a major postoperative complication following internal fixation or arthroplasty for proximal femoral fracture (PFF). Few studies have examined the potential risk factors for SSI; therefore, we conducted this matched-pair analysis.
Materials And Methods: This single-centre study was based on a retrospective database of patients treated for PFF with internal fixation or arthroplasty between 2006 and 2024.
Background: Photon-counting detector computed tomography (PCD-CT) can reduce radiation dose in paediatric lung imaging.
Objective: The aim of this study was to determine the lowest radiation dose maintaining adequate image quality for high-pitch lung imaging using a PCD-CT in a chest phantom replicating the characteristics of a 5-year-old child.
Materials And Methods: The phantom was imaged on a dual-source PCD-CT with five different volume CT dose indices (CTDI): 0.
Background: Radial k-space sampling is widely employed in paediatric magnetic resonance imaging (MRI) to mitigate motion and aliasing artefacts. Artificial intelligence (AI)-based image reconstruction has been developed to enhance image quality and accelerate acquisition time.
Objective: To assess image quality of deep learning (DL)-based denoising image reconstruction of body MRI in children.
Eur J Radiol Open
December 2024
Background/purpose: To investigate a quantitative method for assessing image quality of low dose lung computed tomography (CT) and find the lowest exposure dose providing diagnostic images.
Methods: Axial volumetric lung CT acquisitions (256 slice scanner) were performed on three different sized anthropomorphic phantoms at different dose levels. The maximum steepness of sigmoid curves fitted to line density profiles was measured at lung-to-pleura interfaces.
J Vasc Interv Radiol
November 2024
Purpose: To evaluate the clinical and imaging outcome of aneurysmal bone cysts (ABCs) in children using percutaneous cryoablation as the sole treatment.
Materials And Methods: This retrospective study included 7 children with a mean age of 8.7 years (range, 3.
Eur J Orthop Surg Traumatol
January 2024
Purpose: Periprosthetic femoral fractures (PFF) according to type Vancouver C are less common and outcome is limited reported. Therefore, we conducted this retrospective single center study.
Methods: We performed analysis of patients who underwent open reduction and internal fixation (ORIF) with locking plates for PPF occurring distally of a primary standard hip stem.
Occupation-related cancers are of considerable importance, which is not yet adequately recognized in the field of urology. The three numerically most significant entities are tumors of the urinary tract caused by carcinogenic aromatic amines or polycyclic aromatic hydrocarbons, renal cell cancer after high exposure to the solvent trichloroethylene, and mesotheliomas of the tunica vaginalis of the testis after exposure to asbestos; however, these can only be recognized as occupation-related if an occupational history regarding the hazard relevant to the organ bearing the tumor is documented from the beginning of employment, e.g.
View Article and Find Full Text PDFUrinary bladder cancer is the second most common tumour disease after lung cancer leading to death in people with a spinal cord injury. This paper provides a comprehensive overview of the differences relevant to urologists between urinary bladder tumours in this population compared with urinary bladder tumours in the general population.People with a spinal cord injury are 1 to 2 decades younger on average at the time of tumour diagnosis than patients without a spinal cord injury.
View Article and Find Full Text PDFPurpose: To compare objective and subjective parameters in image quality and radiation dose of two MDCTs (helical 64 detector CT vs. axial 256 detector CT) in paediatric lung CT.
Methods: Radiation dose and image quality were compared between non-enhanced lung CT from a helical 64-slice multidetector CT (MDCT 1) and a 256-slice scanner (MDCT 2) with axial wide-cone acquisition and using deep learning image reconstruction.
Background: Traumatic spinal cord injury (SCI) is also a combat-related injury that is increasing in modern warfare. The aim of this work is to inform medical experts regarding the different course of bladder cancer in able-bodied patients compared with SCI patients based on the latest medical scientific knowledge, and to present decision-making aids for the assessment of bladder cancer as a late sequela of traumatic SCI.
Methods: A study conducted between January 1998 and December 2019 in the BG Trauma Hospital Hamburg formed the basis for the decision-making aids.
This work investigates how one can postprocess a series of flash-generated X-ray radiographs with known point spread functions and collection geometries to produce radiographs with enhanced image quality and/or to approximate a multiframe X-ray movie by spatially correlating temporally sequenced images. To produce images with enhanced quality, one collects multiple individual projections, simultaneously, and then uses the known point spread function and acquisition geometry to correlate and integrate the numerous projections as if they were acquired from approximately the same perspective. If using sources of similar spectral characteristics, the outcome correlates with that which would be produced from a multiflash integration, where one benefits from an increase in flux of X-ray photons.
View Article and Find Full Text PDFPurpose: Life expectancy for people with traumatic spinal cord injury (SCI) is increasing due to advances in treatment methods and in neuro-urology. Thus, developing urinary bladder cancer (UBC) is gaining importance.
Methods: Single-centre retrospective evaluation of consecutive in- and out-patient data with spinal cord injury between January 1st, 1998 and December 31st, 2018 was carried out and data were compared with UBC data of the German population from the German Centre for Cancer Registry Data at Robert Koch Institute.
Geriatr Orthop Surg Rehabil
January 2019
Introduction: There are increasing demands to perform surgery of hip fractures without delay. However, few studies have assessed the time to surgery in relation to outcome measurements.
Methods: A total of 643 consecutive patients with a minimum age of 60 years underwent total hip arthroplasty (THA) for an intracapsular hip fracture.
Eur J Trauma Emerg Surg
December 2019
Purpose: We performed a monocenter cohort study to determine surgical revision and mortality after sustaining an initial and a non-simultaneous contralateral proximal femoral fracture.
Methods: We identified all patients surgically treated for a contralateral femoral fracture between 2006 and 2015. Patient demographic characteristics and follow-up were identified by our electronic database; failed information regarding revision and mortality were obtained by telephone, as well as the evaluation of the mobility for all alive patients.
Introduction And Objectives: Life expectancy for people with spinal cord injury/disease (SCI/D) is increasing, due to modern advances in treatment methods and in neuro-urology. However, with the increased life expectancy the risk of developing urinary bladder cancer is gaining importance. How is this patient group different from the general population?
Methods: Single-centre retrospective evaluation of consecutive patient data with spinal cord injury and proven urinary bladder cancer.
Background: Due to demographic change, more proximal femoral fractures can be expected in the future. However, accurate growth rates as well as follow-up research extending more than 1 year postsurgery are still lacking.
Materials And Methods: First, we defined inclusion and exclusion criteria for the retrospective cohort study.
J Orthop Surg (Hong Kong)
March 2018
Purpose: Total hip arthroplasty (THA) after failed osteosynthesis for proximal femoral fractures is associated with higher revision rates, particularly for dislocation. The purpose of this study was to report our results with THA after failed osteosynthesis within a treatment period of 10 years.
Methods: A retrospective cohort study including 80 consecutive patients was conducted.
Introduction: Life expectancy for people with spinal cord injury has shown a marked increase due to modern advances in treatment methods and in neuro-urology. However, since life expectancy of people with paralysis increases, the risk of developing of urinary bladder cancer is gaining importance.
Materials And Methods: Single-centre retrospective evaluation of patient data with spinal cord injuries and proven urinary bladder cancer and summary of the literature.
Aim: To analyze planning total hip arthroplasty (THA) with an additional anteroposterior hip view may increases the accuracy of preoperative planning in THA.
Methods: We conducted prospective digital planning in 100 consecutive patients: 50 of these procedures were planned using pelvic overview only (first group), and the other 50 procedures were planned using pelvic overview plus antero-posterior (a.p.