Background: Lymphedema of the upper limb is a common complication after cancer treatment with axillary lymph node surgery and/or radiation. At this moment, there is no method that can identify lymphedema error free. Currently three-dimensional (3D) imaging is used to measure volumes in aesthetic and maxillofacial surgery. This study aims to assess the validity and reliability of 3D volume measurements of the upper limb compared with the current gold standard (water displacement method).
Methods And Results: Thirty-three subjects were included which completed both measurements. The accuracy of the aforementioned methods was compared in a within subject design. The analysis showed a mean difference between the two measurements of -13.8 cc (SD 59.3), this volume difference was not significant (p=0.192). Both the intra- and inter-rater reliability of the 3D measurements were high (0.99).
Conclusion: The 3D volume measurements of the arm are valid and reliable. Therefore we recommend the 3D method for measuring arm volumes. Since this method is now validated for arms without lymphedema, we plan to validate this new technique for patients with lymphedema.
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http://dx.doi.org/10.1089/lrb.2014.0007 | DOI Listing |
J Am Med Inform Assoc
January 2025
Coordinating Center, Observational Health Data Science and Informatics, New York City, NY 10032, United States.
Objective: Propose a framework to empirically evaluate and report validity of findings from observational studies using pre-specified objective diagnostics, increasing trust in real-world evidence (RWE).
Materials And Methods: The framework employs objective diagnostic measures to assess the appropriateness of study designs, analytic assumptions, and threats to validity in generating reliable evidence addressing causal questions. Diagnostic evaluations should be interpreted before the unblinding of study results or, alternatively, only unblind results from analyses that pass pre-specified thresholds.
BMC Public Health
January 2025
Biomedical Science Programme, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur, Malaysia.
Background: After two years of the COVID-19 pandemic, Malaysia began the transition to the endemic phase. students at higher education institutes are among those who were affected by the COVID-19 outbreak and deserve further attention. Hence, this study aimed to assess the knowledge, attitude, and practice (KAP) associated with COVID-19 among public university undergraduate students in Malaysia during the endemic phase.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Radiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.
The formula-based estimation of the right internal jugular venous (IJV) catheterization depth can be inaccurate when using ultrasound guidance. External landmark-based and radiological landmark-based methods have been proposed as alternatives to estimate the insertion depth. This study aimed to evaluate these methods using transesophageal echocardiography (TEE)-guided insertion depth as the reference.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Diagnostic and Interventional Radiology, University Hospital Bonn, Venusberg-Campus 1, 53127, Bonn, Germany.
Automated tools for quantification of idiopathic pulmonary fibrosis (IPF) can aid in ensuring reproducibility, however their complexity and costs can differ substantially. In this retrospective study, two automated tools were compared in 45 patients with biopsy proven (12/45) and imaging-based (33/45) IPF diagnosis (mean age 74 ± 9 years, 37 male) for quantification of pulmonary fibrosis in CT. First, a tool that identifies multiple characteristic lung texture features was applied to measure multi-texture fibrotic lung (MTFL) by combining the amount of ground glass, reticulation, and honeycombing.
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January 2025
Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Phuttamonthon, Nakhon Pathom, 73170, Thailand.
This study investigates the ergonomic assessment of sitting postures and the potential for work-related musculoskeletal disorders (WMSDs) in office environments by comparing traditional physical therapist evaluations with Inertial Measurement Unit (IMU) technology by determining the reliability and accuracy of sitting posture assessment using the rapid upper limb assessment (RULA) method. In this experiment, neck and body angle data is collected from twenty participants while sitting and working. The study aims to capture and compare the neck and trunk posture score based RULA protocol system to evaluate ergonomic risks.
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