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Total 2278 results found since Jan 2013.
Attention-gated U-Net networks for simultaneous axial/sagittal planes segmentation of injured spinal cords
This study proposes a new CNN-based segmentation method in which information is exchanged between two networks analyzing the scans from different planes. Our aim was to develop a robust method for automatic segmentation of the spinal cord in patients having suffered traumatic injuries. The database consisted of 106 sagittal MRI scans from 94 patients with traumatic spinal cord injuries. Our method used an innovative approach where the scans were analyzed in series under the axial and sagittal plane by two different convolutional networks. The results were compared with those of Deepseg 2D from the Spinal Cord Toolbox (SCT)...
Source: Journal of Applied Clinical Medical Physics - September 22, 2023 Category: Physics Authors: Nicolas Masse-Gignac Salom ón Flórez-Jiménez Jean-Marc Mac-Thiong Luc Duong Source Type: research
Point-of-care AI-assisted stepwise ultrasound pneumothorax diagnosis
Phys Med Biol. 2023 Sep 19. doi: 10.1088/1361-6560/acfb70. Online ahead of print.ABSTRACTUltrasound is extensively utilized as a convenient and costeffective method in emergency situations. Unfortunately, the limited availability of skilled clinicians in emergency hinders the wider adoption of point-of-care ultrasound. To overcome this challenge, this paper aims to aid less experienced healthcare providers in emergency lung ultrasound scans.
Approach: To assist healthcare providers, it is important to have a comprehensive model that can automatically guide the entire process of lung ultrasound based on the clinicia...
Source: Physics in Medicine and Biology - September 19, 2023 Category: Physics Authors: Kyungsang Kim Fabiola Macruz Dufan Wu Christopher Bridge Suzannah McKinney Ahad Alhassan Al Saud Elshaimaa Sharaf Adam Pely Paul Danset Tom Duffy Davin Dhatt Varun Buch Andrew Liteplo Quanzheng Li Source Type: research
Radiation-dependent demyelination in normal appearing white matter in glioma patients, determined using quantitative magnetic resonance imaging
CONCLUSION: In the long-term follow-up for glioma patients, qMRI is a powerful tool for detecting small changes, such as a decrease of myelin concentration, in NAWM after CRT.PMID:37720464 | PMC:PMC10500023 | DOI:10.1016/j.phro.2023.100451
Source: Health Physics - September 18, 2023 Category: Physics Authors: Anna Ljusberg Ida Blystad Peter Lundberg Emelie Adolfsson Anders Tisell Source Type: research
Artificial intelligence in breast imaging: potentials and challenges
Phys Med Biol. 2023 Sep 18. doi: 10.1088/1361-6560/acfade. Online ahead of print.ABSTRACTBreast cancer, which is the most common type of malignant tumor among humans, is a leading cause of death in females. Standard treatment strategies, including neoadjuvant chemotherapy, surgery, postoperative chemotherapy, targeted therapy, endocrine therapy, and radiotherapy, are tailored for individual patients. Such personalized therapies have tremendously reduced the threat of breast cancer in females. Furthermore, early imaging screening plays an important role in reducing the treatment cycle and improving breast cancer prognosis. ...
Source: Physics in Medicine and Biology - September 18, 2023 Category: Physics Authors: Jiawei Li Danli Sheng Jiangang Chen Chao You Shuai Liu Huixiong Xu Cai Chang Source Type: research
Radiation-dependent demyelination in normal appearing white matter in glioma patients, determined using quantitative magnetic resonance imaging
CONCLUSION: In the long-term follow-up for glioma patients, qMRI is a powerful tool for detecting small changes, such as a decrease of myelin concentration, in NAWM after CRT.PMID:37720464 | PMC:PMC10500023 | DOI:10.1016/j.phro.2023.100451
Source: Health Physics - September 18, 2023 Category: Physics Authors: Anna Ljusberg Ida Blystad Peter Lundberg Emelie Adolfsson Anders Tisell Source Type: research
Artificial intelligence in breast imaging: potentials and challenges
Phys Med Biol. 2023 Sep 18. doi: 10.1088/1361-6560/acfade. Online ahead of print.ABSTRACTBreast cancer, which is the most common type of malignant tumor among humans, is a leading cause of death in females. Standard treatment strategies, including neoadjuvant chemotherapy, surgery, postoperative chemotherapy, targeted therapy, endocrine therapy, and radiotherapy, are tailored for individual patients. Such personalized therapies have tremendously reduced the threat of breast cancer in females. Furthermore, early imaging screening plays an important role in reducing the treatment cycle and improving breast cancer prognosis. ...
Source: Physics in Medicine and Biology - September 18, 2023 Category: Physics Authors: Jiawei Li Danli Sheng Jiangang Chen Chao You Shuai Liu Huixiong Xu Cai Chang Source Type: research
Analysis and prediction of liver volume change maps derived from computational tomography scans acquired pre- and post-radiation therapy
This study leverages the use of deep learning-based segmentation and biomechanical deformable image registration (DIR) to analyze and predict this relationship. Pre- and Post-EBRT imaging data were collected for 100 patients treated for HCC, CC or CRC with IMRT with prescription doses ranging from 50 to 100 Gy delivered in 10 to 28 fractions. For each patient, DIR between the portal and venous (PV) phase of a diagnostic CT scan acquired before RT planning, and a PV phase of a diagnostic CT scan acquired after the end of RT (on average 147±36 days) was performed to calculate Jacobian maps representing volume changes in the...
Source: Physics in Medicine and Biology - September 15, 2023 Category: Physics Authors: Guillaume Cazoulat Aashish C Gupta Mais M Al Taie Eugene J Koay Kristy K Brock Source Type: research
Research Agenda for Physical Therapy from the American Physical Therapy Association
Phys Ther. 2023 Sep 15:pzad126. doi: 10.1093/ptj/pzad126. Online ahead of print.ABSTRACTResearch agendas play an important role in directing scholarly inquiry in a field. The Research Agenda for Physical Therapy From the American Physical Therapy Association (APTA) outlines research priorities that are vital to advancing physical therapist practice and the profession. The development of the research agenda included multiple iterative steps and feedback from stakeholders. A research agenda subgroup (n = 6) of the APTA Scientific Practice and Advisory Committee (SPAC), with APTA staff support, gathered information on existin...
Source: Health Physics - September 15, 2023 Category: Physics Authors: Jennifer Stevens-Lapsley Gregory E Hicks Kory Zimney Emily J Slaven Tara Jo Manal Lynn M Jeffries Source Type: research
From the Flight Deck to the Bedside: Core Aviation Concepts Applied to Acute Care Physical Therapist Practice and Education
Phys Ther. 2023 Sep 15:pzad125. doi: 10.1093/ptj/pzad125. Online ahead of print.ABSTRACTThe health care industry has sought to reduce errors and patient harm by drawing upon human factors research developed largely in the aviation industry. However, literature that explicitly applies human factors concepts to physical therapist practice is scarce. Therefore, this clinical perspective highlights key concepts in aviation safety and training that should be considered for application to physical therapist education and practice in the acute care setting, including the law of primacy, pilot in command, crew resource management,...
Source: Health Physics - September 15, 2023 Category: Physics Authors: Michael J Shoemaker Sean M Collins Source Type: research
Analysis and prediction of liver volume change maps derived from computational tomography scans acquired pre- and post-radiation therapy
This study leverages the use of deep learning-based segmentation and biomechanical deformable image registration (DIR) to analyze and predict this relationship. Pre- and Post-EBRT imaging data were collected for 100 patients treated for HCC, CC or CRC with IMRT with prescription doses ranging from 50 to 100 Gy delivered in 10 to 28 fractions. For each patient, DIR between the portal and venous (PV) phase of a diagnostic CT scan acquired before RT planning, and a PV phase of a diagnostic CT scan acquired after the end of RT (on average 147±36 days) was performed to calculate Jacobian maps representing volume changes in the...
Source: Physics in Medicine and Biology - September 15, 2023 Category: Physics Authors: Guillaume Cazoulat Aashish C Gupta Mais M Al Taie Eugene J Koay Kristy K Brock Source Type: research
Research Agenda for Physical Therapy from the American Physical Therapy Association
Phys Ther. 2023 Sep 15:pzad126. doi: 10.1093/ptj/pzad126. Online ahead of print.ABSTRACTResearch agendas play an important role in directing scholarly inquiry in a field. The Research Agenda for Physical Therapy From the American Physical Therapy Association (APTA) outlines research priorities that are vital to advancing physical therapist practice and the profession. The development of the research agenda included multiple iterative steps and feedback from stakeholders. A research agenda subgroup (n = 6) of the APTA Scientific Practice and Advisory Committee (SPAC), with APTA staff support, gathered information on existin...
Source: Health Physics - September 15, 2023 Category: Physics Authors: Jennifer Stevens-Lapsley Gregory E Hicks Kory Zimney Emily J Slaven Tara Jo Manal Lynn M Jeffries Source Type: research
From the Flight Deck to the Bedside: Core Aviation Concepts Applied to Acute Care Physical Therapist Practice and Education
Phys Ther. 2023 Sep 15:pzad125. doi: 10.1093/ptj/pzad125. Online ahead of print.ABSTRACTThe health care industry has sought to reduce errors and patient harm by drawing upon human factors research developed largely in the aviation industry. However, literature that explicitly applies human factors concepts to physical therapist practice is scarce. Therefore, this clinical perspective highlights key concepts in aviation safety and training that should be considered for application to physical therapist education and practice in the acute care setting, including the law of primacy, pilot in command, crew resource management,...
Source: Health Physics - September 15, 2023 Category: Physics Authors: Michael J Shoemaker Sean M Collins Source Type: research
Investigation of scan path optimization in improving proton pencil beam scanning continuous delivery
Phys Med Biol. 2023 Sep 13. doi: 10.1088/1361-6560/acf98e. Online ahead of print.ABSTRACTTo investigate the impact of scan path optimization on the dose accuracy and beam delivery time (BDT) of proton pencil beam scanning (PBS) in the dose-driven continuous scanning (DDCS).
Approach: A diverse set of six clinical plans, representing various spot patterns and treatment sites, was used to evaluate the effectiveness of scan time optimization and scan length optimization. The DDCS dose discrepancy and BDT with optimized scan paths was compared to the default serpentine scan path. 
Main results: Both scan time o...
Source: Physics in Medicine and Biology - September 13, 2023 Category: Physics Authors: Chunbo Liu Chris J Beltran Jiajian Shen Bo Lu Chunjoo Park Sridhar Yaddanapudi Jun Tan Keith M Furutani Xiaoying Liang Source Type: research
