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| http://dx.doi.org/10.1002/acm2.14444 | DOI Listing |
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On the correction factors for small field dosimetry in 1.5T MR-linacs.
Phys Med Biol
January 2025
Medical Physics Laboratory, School of Medicine, National and Kapodistrian University of Athens, 75 Mikras Asias, Goudi, Athens, Attica, 11527, GREECE.
Clinical dosimetry in the presence of a 1.5T magnetic field is challenging, let alone in case small fields are involved. The scope of this study is to determine a set of relevant correction factors for a variety of MR-compatible detectors with emphasis on small fields.
View Article and Find Full Text PDFUse of a virtual phantom to assess the capability of a treatment planning system to perform magnetic resonance image distortion correction.
Phys Eng Sci Med
January 2025
Physics Department, Instituto Zunino, Obispo Oro 423, X5000BFI, Córdoba, Argentina.
Article Synopsis
- Treatment Planning Systems (TPS) are evaluated for their effectiveness in correcting distortions in Magnetic Resonance (MR) images using a virtual phantom and Control Points (CPs).
- The study involved creating distorted MR images and applying TPS, with findings showing that distortion caused median deviations of 1.8 mm, which were reduced to 0.6 mm after correction.
- Structural Similarity Metric (SSIM) tests indicated significant improvements in image quality, with the TPS successfully reducing distortions to levels acceptable for radiosurgery.
Increased parietal operculum functional connectivity following vestibular rehabilitation in benign paroxysmal positional vertigo patients with residual dizziness: a randomized controlled resting-state fMRI study.
Neuroradiology
January 2025
Department of Neurology, Second Affiliated Hospital of Xuzhou Medical University, No. 32, Meijian Road, Quanshan District, Xuzhou, 221006, Jiangsu, China.
Introduction: Residual dizziness (RD) is common in patients with benign paroxysmal positional vertigo (BPPV) after successful canalith repositioning procedures. This study aimed to investigate the therapeutic effects of vestibular rehabilitation (VR) on BPPV patients experiencing RD, and to explore the impact of VR on functional connectivity (FC), specifically focusing on the bilateral parietal operculum (OP) cortex.
Methods: Seventy patients with RD were randomly assigned to either a four-week VR group or a control group that received no treatment.
Correction: A regional modification to the Revised Swiss System for clinical staging of hypothermia including confusion.
Scand J Trauma Resusc Emerg Med
January 2025
International Commission for Mountain Emergency Medicine (ICAR MedCom), Zürich, Switzerland.
Development of machine learning models for diagnostic biomarker identification and immune cell infiltration analysis in PCOS.
J Ovarian Res
January 2025
Reproductive Medicine Center, Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
Background: Polycystic ovary syndrome (PCOS) is a common endocrine disorder affecting women of reproductive age. It is characterized by symptoms such as hyperandrogenemia, oligo or anovulation and polycystic ovarian, significantly impacting quality of life. However, the practical implementation of machine learning (ML) in PCOS diagnosis is hindered by the limitations related to data size and algorithmic models.
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