The introduction of new devices demands the assessment of their capabilities in established terms. The accuracy, reproducibility and spatial resolution of in vitro (phantom) osteodensitometric and morphometric measurements of QDR 2000 Plus and EXPERT are presented. Design details of these DXA/MXA-devices are listed and discussed in combination with the data acquired in the test measurements and calculations. The image quality will improve with further software developments. The long-term reproducibility and in vivo reliability remains to be evaluated.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/0720-048x(95)00682-g | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Prediction of hip fracture by high-resolution peripheral quantitative computed tomography in older Swedish women.
J Bone Miner Res
January 2025
Sahlgrenska Osteoporosis Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.
The socioeconomic burden of hip fractures, the most severe osteoporotic fracture outcome, is increasing and the current clinical risk assessment lacks sensitivity. This study aimed to develop a method for improved prediction of hip fracture by incorporating measurements of bone microstructure and composition derived from high-resolution peripheral quantitative computed tomography (HR-pQCT). In a prospective cohort study of 3028 community-dwelling women aged 75 to 80, all participants answered questionnaires and underwent baseline examinations of anthropometrics and bone by dual x-ray absorptiometry (DXA) and HR-pQCT.
View Article and Find Full Text PDFIntegrating deep learning and machine learning for improved CKD-related cortical bone assessment in HRpQCT images: A pilot study.
Bone Rep
March 2025
Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, United States of America.
High resolution peripheral quantitative computed tomography (HRpQCT) offers detailed bone geometry and microarchitecture assessment, including cortical porosity, but assessing chronic kidney disease (CKD) bone images remains challenging. This proof-of-concept study merges deep learning and machine learning to 1) improve automatic segmentation, particularly in cases with severe cortical porosity and trabeculated endosteal surfaces, and 2) maximize image information using machine learning feature extraction to classify CKD-related skeletal abnormalities, surpassing conventional DXA and CT measures. We included 30 individuals (20 non-CKD, 10 stage 3 to 5D CKD) who underwent HRpQCT of the distal and diaphyseal radius and tibia and contributed data to develop and validate four different AI models for each anatomical site.
View Article and Find Full Text PDFAnthropometry, body composition, somatotype and asymmetry of canoe sprint world champion: A case study.
Nutr Health
January 2025
IRyS Group, Physical Education School, Pontificia Universidad Católica de Valparaíso (PUCV), Valparaíso, Chile.
Body composition is a determinant of physical fitness and sports performance. To describe the anthropometric characteristics, body composition, somatotype, and asymmetries of the 2023 world champion in the C1-1000 canoeing event. Dual-energy X-ray absorptiometry (DXA), bioelectrical impedance analysis (BIA), and anthropometry were used to describe the athlete's body composition.
View Article and Find Full Text PDFImpact of Soft Drink Intake on Bone Development and Risk of Fractures in a Danish Cohort of Schoolchildren.
Children (Basel)
December 2024
Research Unit of Pediatrics, Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, 5000 Odense C, Denmark.
Background And Aims: Soft drink consumption is suspected to negatively impact bone health in children, but longitudinal evidence is limited. This study assessed the association between soft drink intake and bone health outcomes in Danish schoolchildren aged 7.7-12 years, within a physical activity intervention framework.
View Article and Find Full Text PDFA Pilot Case-Control Study of Muscle and Bone Health Status in Patients Who Have Recovered From COVID-19 Infection.
Cureus
December 2024
Department of Health Sciences, Savitribai Phule Pune University, Pune, IND.
Background: Coronavirus disease 2019 (COVID-19), resulting from the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), affects various bodily systems, including the heart, central nervous system, muscles, and bones, all of which harbor angiotensin-converting enzyme 2 (ACE-2) receptors similar to those in the respiratory system. However, research on the inflammatory response and its impact on systems such as the musculoskeletal one is relatively scarce. Our study aimed to investigate bone and muscle metrics as well as handgrip strength in individuals who recuperated from COVID-19 infection.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!