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Development of estimation method for T and T values using the relaxivity of contrast agent and coagulant for a magnetic resonance imaging phantom
Development of estimation method for T and T values using the relaxivity of contrast agent and coagulant for a magnetic resonance imaging phantom
The T1 and T2 values of magnetic resonance imaging phantoms used by researchers should be equivalent to those of the targe...
Impact of iso-dose levels on pre-treatment quality assurance in volumetric modulated arc therapy
Impact of iso-dose levels on pre-treatment quality assurance in volumetric modulated arc therapy
The current standard of modern radiotherapy pre-treatment evaluation of dose distributions measured using gamma pass perce...
Enhanced urethral identification for radiotherapy planning using fat-suppressed 3D T2-weighted magnetic resonance imaging
Enhanced urethral identification for radiotherapy planning using fat-suppressed 3D T2-weighted magnetic resonance imaging
This study proposes a fat-suppressed three-dimensional T2-weighted (3D-T2W) sequence on magnetic resonance imaging to enha...
Scatter and beam hardening effect corrections in pelvic region cone beam CT images using a convolutional neural network
Scatter and beam hardening effect corrections in pelvic region cone beam CT images using a convolutional neural network
The aim of this study is to remove scattered photons and beam hardening effect in cone beam CT (CBCT) images and make an i...
Optimization of imaging conditions for infant hip imaging using flat panel detectors
Optimization of imaging conditions for infant hip imaging using flat panel detectors
To investigate the optimal low-dose imaging conditions for infant hip radiography, using a commercially available infant p...
External and internal GATE/Geant4 dosimetric calculations on voxelized phantoms
External and internal GATE/Geant4 dosimetric calculations on voxelized phantoms
Monte Carlo simulation employing the GATE (Geant4 Application for Tomographic Emission) code plays a crucial role in radia...
A CT-free deep-learning-based attenuation and scatter correction for copper-64 PET in different time-point scans
A CT-free deep-learning-based attenuation and scatter correction for copper-64 PET in different time-point scans
This study aimed to develop and evaluate a deep-learning model for attenuation and scatter correction in whole-body 64Cu-b...
Predictive models of severe disease in patients with COVID-19 pneumonia at an early stage on CT images using topological properties
Predictive models of severe disease in patients with COVID-19 pneumonia at an early stage on CT images using topological properties
Prediction of severe disease (SVD) in patients with coronavirus disease (COVID-19) pneumonia at an early stage could allow...
Human phantom applicability of 3D-printed polylactic acid for X-ray dose analysis: simulation and measurement studies
Human phantom applicability of 3D-printed polylactic acid for X-ray dose analysis: simulation and measurement studies
In recent years, significant research has focused on the fabrication of human phantoms and the evaluation of radiological ...
Investigation of imaging conditions for dental MRI using 3T-MRI system with microscopy coil in clinical situation
Investigation of imaging conditions for dental MRI using 3T-MRI system with microscopy coil in clinical situation
Magnetic resonance imaging (MRI) has been employed to obtain high-resolution images of dental structures using intraoral a...
Comprehensive plan quality assessment of simplified volumetric-modulated arc therapy for lung stereotactic body radiotherapy
Comprehensive plan quality assessment of simplified volumetric-modulated arc therapy for lung stereotactic body radiotherapy
In lung stereotactic body radiation therapy, optimizing plan quality, including dosimetric quality and plan complexity, is...
Investigation of patient radiation exposure reduction through optimization of imaging conditions for stent enhancement processing in percutaneous coronary intervention: a retrospective study
Investigation of patient radiation exposure reduction through optimization of imaging conditions for stent enhancement processing in percutaneous coronary intervention: a retrospective study
Several percutaneous coronary intervention (PCI) support technologies have been developed to improve procedural outcomes. ...
Evaluation of femoral bone mineral density in patients with hip osteoarthritis using material density image in dual-energy computed tomography
Evaluation of femoral bone mineral density in patients with hip osteoarthritis using material density image in dual-energy computed tomography
Bone mineral density (BMD) around the implant may decrease post-total hip arthroplasty (THA), and it is important to evalu...
Impact of discrepancies between CT numbers of brain-tissue-equivalent density plug and actual brain tissue on dose calculation accuracy
Impact of discrepancies between CT numbers of brain-tissue-equivalent density plug and actual brain tissue on dose calculation accuracy
This study quantitatively evaluated the impact of differences in computed tomography (CT) numbers and elemental compositio...
Comparison of image quality evaluation methods for magnetic resonance imaging using compressed sensing–sensitivity encoding (CS-SENSE)
Comparison of image quality evaluation methods for magnetic resonance imaging using compressed sensing–sensitivity encoding (CS-SENSE)
This study aimed to compare the relationship between the quantitative values and visual score of acquired images using the...
Development of a tissue water fraction analysis method using quantitative parameter mapping for magnetic resonance imaging
Development of a tissue water fraction analysis method using quantitative parameter mapping for magnetic resonance imaging
The myelin sheath is a multilayered structure that surrounds the axons of nerve cells. It acts as an insulator to ensure r...
Development of myocardial perfusion imaging from coronary angiography for clinical application
Development of myocardial perfusion imaging from coronary angiography for clinical application
This study aimed to generate myocardial perfusion images from coronary angiography (CAG) using Patlak plot analysis and ev...
Generalizable AI approach for detecting projection type and left–right reversal in chest X-rays
Generalizable AI approach for detecting projection type and left–right reversal in chest X-rays
The verification of chest X-ray images involves several checkpoints, including orientation and reversal. To address the ch...
MobileTurkerNeXt: investigating the detection of Bankart and SLAP lesions using magnetic resonance images
MobileTurkerNeXt: investigating the detection of Bankart and SLAP lesions using magnetic resonance images
The landscape of computer vision is predominantly shaped by two groundbreaking methodologies: transformers and convolution...
Decision support using machine learning for predicting adequate bladder filling in prostate radiotherapy: a feasibility study
Decision support using machine learning for predicting adequate bladder filling in prostate radiotherapy: a feasibility study
This study aimed to develop a model for predicting the bladder volume ratio between daily CBCT and CT to determine adequat...
Optimum delineation of skin structure for dose calculation with the linear Boltzmann transport equation algorithm in radiotherapy treatment planning
Optimum delineation of skin structure for dose calculation with the linear Boltzmann transport equation algorithm in radiotherapy treatment planning
This study investigated the effectiveness of placing skin-ring structures to enhance the precision of skin dose calculatio...
Assessing knowledge about medical physics in language-generative AI with large language model: using the medical physicist exam
Assessing knowledge about medical physics in language-generative AI with large language model: using the medical physicist exam
This study aimed to evaluate the performance for answering the Japanese medical physicist examination and providing the be...
A novel internal target volume definition based on velocity and time of respiratory target motion for external beam radiotherapy
A novel internal target volume definition based on velocity and time of respiratory target motion for external beam radiotherapy
This study aimed to develop a novel internal target volume (ITV) definition for respiratory motion targets, considering ta...
An updated overview of radiomics-based artificial intelligence (AI) methods in breast cancer screening and diagnosis
An updated overview of radiomics-based artificial intelligence (AI) methods in breast cancer screening and diagnosis
Current imaging methods for diagnosing breast cancer (BC) are associated with limited sensitivity and specificity and mode...
Effect of frame rate on image quality in cardiology evaluated using an indirect conversion dynamic flat-panel detector
Effect of frame rate on image quality in cardiology evaluated using an indirect conversion dynamic flat-panel detector
To verify the effect of the frame rate on image quality in cardiology, we used an indirect conversion dynamic flat-panel d...
LIT-Unet: a lightweight and effective model for medical image segmentation
LIT-Unet: a lightweight and effective model for medical image segmentation
This study aimed to design a simple and efficient automatic segmentation model for medical images, so as to facilitate doc...
The effect on gastrointestinal peristalsis for magnetic resonance cholangiopancreatography during breath-holding methods
The effect on gastrointestinal peristalsis for magnetic resonance cholangiopancreatography during breath-holding methods
The breath-hold (BH) 3D magnetic resonance cholangiopancreatography method has been reported to suppress “respirator...
Evaluation of patient-specific quality assurance for fractionated stereotactic treatment plans with 6 and 10MV photon beams in beam-matched linacs
Evaluation of patient-specific quality assurance for fractionated stereotactic treatment plans with 6 and 10MV photon beams in beam-matched linacs
Beam-matched linear accelerators (LA’s) require accurate and precise dosimetry for fractionated stereotactic treatme...
Optimization of image reconstruction technique for respiratory-gated lung stereotactic body radiotherapy treatment planning using four-dimensional CT: a phantom study
Optimization of image reconstruction technique for respiratory-gated lung stereotactic body radiotherapy treatment planning using four-dimensional CT: a phantom study
Patient respiration is characterized by respiratory parameters, such as cycle, amplitude, and baseline drift. In treatment...
Visualization of X-ray fields, overlaps, and over-beaming on surface of the head in spiral computed tomography using computer-aided design-based X-ray beam modeling
Visualization of X-ray fields, overlaps, and over-beaming on surface of the head in spiral computed tomography using computer-aided design-based X-ray beam modeling
To visualize the X-ray fields, overlaps, and over-beaming on the skin surface during spiral head CT scanning. The measured...
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