Simulation of time-intensity curve based on k-space filling in breast dynamic contrast-enhanced three-dimensional magnetic resonance imaging
This study elucidated the effects of a three-dimensional k-space trajectory incorporating the partial Fourier (PF) technique on a time-intensity curve (TIC) in a dynamic contrast-enhanced magnetic resonance imaging of a typical malignant breast tumor using a digital phantom. Images were obtained from the Cancer Imaging Archive Open Data for Breast Cancer, and 1-min scans with high temporal resolution were analyzed. The order of the k-space trajectory was set as Linear (sequential), Low-High (centric), PF (62.5%; Z-, Y-, and both directions), and Low-High Radial. k0 (center of the k-space) timing and TIC shape were affected...
Source: Health Physics - April 13, 2024 Category: Physics Authors: Yasuo Takatsu Tsuyoshi Ueyama Takahiro Iwasaki Tomoko Tateyama Tosiaki Miyati Source Type: research
Factorial analysis of the Brazilian-Portuguese version of the Work Ability Index, reproducibility and validity of the single item and the short version for online application
CONCLUSION: The reliability and construct and concurrent validity of the various versions of the WAI were strong to excellent in online applications. Confirmatory factor analysis demonstrated a new grouping of items for the WAI Brazilian version. However, it is necessary to be careful in the choice due to the distribution model of items in health domains and aspects of work.PMID:38613967 | DOI:10.1016/j.bjpt.2024.101060 (Source: Health Physics)
Source: Health Physics - April 13, 2024 Category: Physics Authors: Renata Lumena Altruda Pucci Anderson Martins da Silva Rosimeire Simprini Padula Source Type: research
The effect of the KNEE program for Netball players on the modified Star Excursion Balance Test - a randomized controlled trial
CONCLUSION: The KNEE program when implemented as a warm-up prior to training and match-play can improve postural control in the PM direction which is integral to Netball.PMID:38614047 | DOI:10.1016/j.ptsp.2024.03.004 (Source: Health Physics)
Source: Health Physics - April 13, 2024 Category: Physics Authors: Jane Grayson David Hillard Alanna Antcliff Cliffton Chan Elizabeth Nightingale Evangelos Pappas Source Type: research
Prospective trial of Functional Lung Avoidance Radiation Therapy for Lung Cancer: Quality of Life Report
CONCLUSION: The current work provides an innovative combination of functional avoidance and PROs and is the first report of PROs for patients treated with prospective 4DCT-ventilation functional avoidance. Approximately 30% of patients had clinically significant decline in PROs at 12 months. The study provides additional data on outcomes with 4DCT-ventilation functional avoidance.PMID:38614278 | DOI:10.1016/j.ijrobp.2024.03.046 (Source: Health Physics)
Source: Health Physics - April 13, 2024 Category: Physics Authors: Joseph Lombardo Edward Castillo Richard Castillo Ryan Miller Bernard Jones Moyed Miften Brian Kavanagh Adam Dicker Cullen Boyle Benjamin Leiby Joshua Banks Nicole L Simone Benjamin Movsas Inga Grills Thomas Guerrero Chad G Rusthoven Yevgeniy Vinogradskiy Source Type: research
Stereotactic Radiation for Ultra-Central Non-Small Cell Lung Cancer: A Safety and Efficacy Trial (SUNSET)
CONCLUSIONS: 60 Gy in 8 fractions, planned and delivered with only a moderate hotspot, has a favorable adverse event rate within the pre-specified acceptability criteria, and results in excellent control for UC tumors.PMID:38614279 | DOI:10.1016/j.ijrobp.2024.03.050 (Source: Health Physics)
Source: Health Physics - April 13, 2024 Category: Physics Authors: E Giuliani Meredith Edith Filion Sergio Faria Vijayananda Kundapur Toni Vu Thi Trinh Thuc Benjamin H Lok Srinivas Raman Houda Bahig Joanna M Laba Pencilla Lang Alexander V Louie Andrew Hope George B Rodrigues Andrea Bezjak Marie-Pierre Campeau Marie Duclo Source Type: research
The Effect of Computerized Wobble Board and Core Stabilization Exercises on Balance Performance and Exercise Capacity in Patients with Heart Failure: A Randomized Controlled Trial
CONCLUSION: CWBET and CSET programs were equally effective and safe for improving balance performance and exercise capacity in patients with HF.PMID:38614379 | DOI:10.1016/j.apmr.2024.04.003 (Source: Health Physics)
Source: Health Physics - April 13, 2024 Category: Physics Authors: Habibe Durdu Rengin Demir Melih Zeren Ertan Aydin Zeki Yuksel Gunaydin Zerrin Yigit Source Type: research
Musculoskeletal and cardiovascular considerations for transgender athletes
Phys Sportsmed. 2024 Apr 11. doi: 10.1080/00913847.2024.2342230. Online ahead of print.ABSTRACTParticipation in athletics is essential for the overall well-being of transgender athletes and should be included as part of gender-affirming care. Surveys show physicians and athletic trainers want to provide appropriate care for transgender athletes but lack the proper knowledge and training to do so. Gender Affirming Hormone Therapy (GAHT) is part of gender-affirming care, yet the effects of GAHT on the cardiovascular and musculoskeletal health of transgender athletes is not well-understood. The purpose of this review was to d...
Source: Health Physics - April 12, 2024 Category: Physics Authors: Kailynn J Yang Canaan Kerr Mia V Rumps Mary Mulcahey Source Type: research
An adult and pediatric size-based contrast administration reduction phantom study for single and dual-energy CT through preservation of contrast-to-noise ratio
CONCLUSIONS: Our work provided a quantitative baseline for other institutions to further optimize their scanning protocols to reduce the use of ICM.PMID:38605540 | DOI:10.1002/acm2.14340 (Source: Health Physics)
Source: Health Physics - April 12, 2024 Category: Physics Authors: Jia Wang Xinhui Duan Usman Mahmood Sarah Eva McKenney Samuel Loren Brady Source Type: research
IOeRT conventional and FLASH treatment planning system implementation exploiting fast GPU Monte Carlo: The case of breast cancer
Phys Med. 2024 Apr 11;121:103346. doi: 10.1016/j.ejmp.2024.103346. Online ahead of print.ABSTRACTPartial breast irradiation for the treatment of early-stage breast cancer patients can be performed by means of Intra Operative electron Radiation Therapy (IOeRT). One of the main limitations of this technique is the absence of a treatment planning system (TPS) that could greatly help in ensuring a proper coverage of the target volume during irradiation. An IOeRT TPS has been developed using a fast Monte Carlo (MC) and an ultrasound imaging system to provide the best irradiation strategy (electron beam energy, applicator positi...
Source: Health Physics - April 12, 2024 Category: Physics Authors: G Franciosini D Carlotti F Cattani A De Gregorio V De Liso F De Rosa M Di Francesco F Di Martino G Felici J Harold Pensavalle M C Leonardi M Marafini A Muscato F Paiar V Patera P Poortmans A Sciubba A Schiavi M Toppi G Traini A Trigilio A Sarti Source Type: research
An improvement method for pancreas CT segmentation using superpixel-based active contour
Phys Med Biol. 2024 Apr 12. doi: 10.1088/1361-6560/ad3e5c. Online ahead of print.ABSTRACTPancreas is one of the most challenging organs for CT image automatic segmentation due to its complex shapes and fuzzy edges. It is simple and universal to use the traditional segmentation method as a post-processor of deep learning method for segmentation accuracy improvement. As the most suitable traditional segmentation method for pancreatic segmentation, the active contour model(ACM), still suffers from the problems of weak boundary leakage and slow contour evolution speed. Therefore, a convenient post-processor for any deep learni...
Source: Health Physics - April 12, 2024 Category: Physics Authors: Huayu Gao Jing Li Nanyan Shen Liang Liu Ying Yang Peng Hu Wei Lu Source Type: research
DPP: deep phase prior for parallel imaging with wave encoding
Phys Med Biol. 2024 Apr 12. doi: 10.1088/1361-6560/ad3e5d. Online ahead of print.ABSTRACTIn MR parallel imaging with virtual channel-expanded Wave encoding, limitations are imposed on the ability to comprehensively and accurately characterize the background phase. These limitations are primarily attributed to the calibration
process relying solely on center low-frequency ACS data for calibration. 
Approach: To tackle the challenge of accurately estimating the background phase in wave encoding, a novel deep neural network model guided by deep phase priors (DPP) is proposed with integrated virtual conjugate c...
Source: Health Physics - April 12, 2024 Category: Physics Authors: Congcong Liu Zhuoxu Cui Sen Jia Jing Cheng Yuanyuan Liu Ling Lin Zhanqi Hu Taofeng Xie Yihang Zhou Yanjie Zhu Dong Liang Hongwu Zeng Haifeng Wang Source Type: research
Monte Carlo evaluation of uncertainties in photon and electron TG-51 absorbed dose calibration
CONCLUSIONS: Despite the different methodology and assumptions, the estimated uncertainty in photon beam calibration is close to that in the addendum. The careful user should be able to easily reach a 95% confidence interval (CI) of ± 2.3% for photon beam calibration with standard instrumentation. For electron beams calibrated with a Farmer chamber, the estimated uncertainties are slightly larger, and the 95% CI is ±2.6% for 6 MeV and slightly smaller than this for 18 MeV. There is no clear energy dependence in these results. It is unlikely that the user will be able to improve on these uncertainties as the dominant fact...
Source: Health Physics - April 12, 2024 Category: Physics Authors: Patrick N McDermott Source Type: research
Musculoskeletal and cardiovascular considerations for transgender athletes
Phys Sportsmed. 2024 Apr 11. doi: 10.1080/00913847.2024.2342230. Online ahead of print.ABSTRACTParticipation in athletics is essential for the overall well-being of transgender athletes and should be included as part of gender-affirming care. Surveys show physicians and athletic trainers want to provide appropriate care for transgender athletes but lack the proper knowledge and training to do so. Gender Affirming Hormone Therapy (GAHT) is part of gender-affirming care, yet the effects of GAHT on the cardiovascular and musculoskeletal health of transgender athletes is not well-understood. The purpose of this review was to d...
Source: Health Physics - April 12, 2024 Category: Physics Authors: Kailynn J Yang Canaan Kerr Mia V Rumps Mary Mulcahey Source Type: research
An adult and pediatric size-based contrast administration reduction phantom study for single and dual-energy CT through preservation of contrast-to-noise ratio
CONCLUSIONS: Our work provided a quantitative baseline for other institutions to further optimize their scanning protocols to reduce the use of ICM.PMID:38605540 | DOI:10.1002/acm2.14340 (Source: Health Physics)
Source: Health Physics - April 12, 2024 Category: Physics Authors: Jia Wang Xinhui Duan Usman Mahmood Sarah Eva McKenney Samuel Loren Brady Source Type: research
Jump height ingenerated by countermovement and arm swing better correlates with proagility shuttle run tests but not with change of direction deficits in collegiate female athletes
CONCLUSIONS: Stronger correlations of RSImod, CMJ, and CMJarm with 10-/20-m COD than with linear sprinting, RSI, and SJ suggest that training focused on improving countermovement and arm swings with jumping may enhance COD performance in female athletes.PMID:38602034 | DOI:10.23736/S0022-4707.24.15691-5 (Source: Health Physics)
Source: Health Physics - April 11, 2024 Category: Physics Authors: Naoyuki Yamashita Daisuke Sato Takaaki Mishima Source Type: research
