Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9185957 | PMC |
| http://dx.doi.org/10.1186/s40560-022-00617-4 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Whole-body PET imaging is often hindered by respiratory motion during acquisition, causing significant degradation in the quality of reconstructed activity images. An additional challenge in PET/CT imaging arises from the respiratory phase mismatch between CT-based attenuation correction and PET acquisition, leading to attenuation artifacts. To address these issues, we propose two new, purely data-driven methods for the joint estimation of activity, attenuation, and motion in respiratory self-gated TOF PET.
View Article and Find Full Text PDFExploration of an adaptive proton therapy strategy using CBCT with the concept of digital twins.
Phys Med Biol
January 2025
Department of Radiology Oncology, Emory University, Clifton Rd, Atlanta, Georgia, 30322-1007, UNITED STATES.
This study aims to develop a digital twin (DT) framework to achieve adaptive proton prostate stereotactic body radiation therapy (SBRT) with fast treatment plan selection and patient-specific clinical target volume (CTV) setup uncertainty. Prostate SBRT has emerged as a leading option for external beam radiotherapy due to its effectiveness and reduced treatment duration. However, interfractional anatomy variations can impact treatment outcomes.
View Article and Find Full Text PDFRemoval of Subretinal Gas After Pneumatic Retinopexy Under Air Using External Manipulation.
Retin Cases Brief Rep
January 2025
The Retina Service of Wills Eye Hospital, Wills Eye Physicians-Mid Atlantic Retina, Thomas Jefferson University, Philadelphia, PA.
Purpose: To illustrate a technique for the removal of subretinal gas via pars plana vitrectomy (PPV) with air-fluid exchange and simultaneous manipulation with scleral depression.
Methods: PPV to remove subretinal gas causing persistent macula-off retinal detachment was performed in one eye, and the results were evaluated in this case report. Ports were carefully placed to avoid puncturing the retina, which was significantly displaced anteriorly past the ora serrata due to the buoyancy of the subretinal gas with the patient in a supine position.
Validating a Practical Correction for Intravenous Contrast on Computed Tomography-Based Muscle Density.
J Comput Assist Tomogr
November 2024
From the Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI.
Objective: Computed tomography (CT) measured muscle density is prognostic of health outcomes. However, the use of intravenous contrast obscures prognoses by artificially increasing CT muscle density. We previously established a correction to equalize contrast and noncontrast muscle density measurements.
View Article and Find Full Text PDFRole and modulation of various spinal pathways for human upper limb control in different gravity conditions.
PLoS Comput Biol
January 2025
Biorobotics Laboratory, EPFL, Lausanne, Switzerland.
Humans can perform movements in various physical environments and positions (corresponding to different experienced gravity), requiring the interaction of the musculoskeletal system, the neural system and the external environment. The neural system is itself comprised of several interactive components, from the brain mainly conducting motor planning, to the spinal cord (SC) implementing its own motor control centres through sensory reflexes. Nevertheless, it remains unclear whether similar movements in various environmental dynamics necessitate adapting modulation at the brain level, correcting modulation at the spinal level, or both.
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!