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Radiation dose at the eye lens of patients undergoing radiation therapy for head and neck cancer
Radiation dose at the eye lens of patients undergoing radiation therapy for head and neck cancer
Linear accelerator irradiation, the most common treatment for head and neck cancer, requires accurate prediction of lens r...
Impact of a novel respiratory motion reduction block for myocardial perfusion SPECT image quality: a phantom study
Impact of a novel respiratory motion reduction block for myocardial perfusion SPECT image quality: a phantom study
Patient motion, particularly due to respiration, often introduces image distortions that compromise diagnostic accuracy in...
Retaking assessment system based on the inspiratory state of chest X-ray image
Retaking assessment system based on the inspiratory state of chest X-ray image
When taking chest X-rays, the patient is encouraged to take maximum inspiration and the radiological technologist takes th...
Non-lead flexible composite shields efficiency in decreasing dose in chest CT scan imaging
Non-lead flexible composite shields efficiency in decreasing dose in chest CT scan imaging
Lead-based radiation shielding used usually in radiology departments is being replaced by non-lead shields due to concerns...
Cone-beam computed tomography (CBCT) image-quality improvement using a denoising diffusion probabilistic model conditioned by pseudo-CBCT of pelvic regions
Cone-beam computed tomography (CBCT) image-quality improvement using a denoising diffusion probabilistic model conditioned by pseudo-CBCT of pelvic regions
Cone-beam computed tomography (CBCT) is widely used in radiotherapy to image patient configuration before treatment but it...
Comparative analysis of radiotherapy modalities and techniques for left breast cancer: dose coverage, setup accuracy, with patient-specific selection criteria for applying deep inspiration breath hold
Comparative analysis of radiotherapy modalities and techniques for left breast cancer: dose coverage, setup accuracy, with patient-specific selection criteria for applying deep inspiration breath hold
To compare dosimetric outcomes between Free Breath (FB) and Deep Inspiration Breath Hold (DIBH) across different radiother...
Initial demonstration of the Scratch-PET concept: an intraoperative PET with a hand-held detector
Initial demonstration of the Scratch-PET concept: an intraoperative PET with a hand-held detector
Positron emission tomography (PET) is a valuable tool for diagnosing malignant tumors. Intraoperative PET imaging is expec...
Potential of the albumin–bilirubin score to predict the hepatic parenchymal contrast enhancement in the portal phase of abdominal dynamic contrast-enhanced multi-detector computed tomography in patients with liver cirrhosis
Potential of the albumin–bilirubin score to predict the hepatic parenchymal contrast enhancement in the portal phase of abdominal dynamic contrast-enhanced multi-detector computed tomography in patients with liver cirrhosis
The albumin–bilirubin (ALBI) score was recently used to predict hepatic reserve. This score is a continuous variable...
A multi-institutional survey on technical variations in total body irradiation in Japan
A multi-institutional survey on technical variations in total body irradiation in Japan
This study aimed to survey technical variations in total body irradiation (TBI) across Japan. A web-based questionnaire in...
A multiple regression model for peak skin dose using principal component analysis in interventional radiology
A multiple regression model for peak skin dose using principal component analysis in interventional radiology
This study addresses the growing concerns of increased radiation doses to patients resulting from the increased complexity...
Semantic segmentation for individual thigh skeletal muscles of athletes on magnetic resonance images
Semantic segmentation for individual thigh skeletal muscles of athletes on magnetic resonance images
The skeletal muscles that athletes should train vary depending on their discipline and position. Therefore, individual ske...
Effectiveness of radiation protection educational material during angiography using visualization of scattered radiation by augmented reality technique
Effectiveness of radiation protection educational material during angiography using visualization of scattered radiation by augmented reality technique
In medical settings, radiation exposure among radiation workers is a significant concern, and understanding radiation prot...
A study of differences in absorbed dose estimates by images used in dosimetry of Lu-177-DOTATATE therapy
A study of differences in absorbed dose estimates by images used in dosimetry of Lu-177-DOTATATE therapy
In Lu-177-labeled peptide receptor radionuclide therapy, dosimetry has recently gained importance for assessing side effec...
Risk factors for motion artifacts in fast spin-echo T2-weighted imaging of the prostate magnetic resonance imaging: a retrospective study
Risk factors for motion artifacts in fast spin-echo T2-weighted imaging of the prostate magnetic resonance imaging: a retrospective study
Prostate cancer diagnosis using fast spin-echo (FSE) T2-weight imaging (T2WI) suffers from motion artifacts (T2-MA). We ai...
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...
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...
Joint segmentation of sternocleidomastoid and skeletal muscles in computed tomography images using a multiclass learning approach
Joint segmentation of sternocleidomastoid and skeletal muscles in computed tomography images using a multiclass learning approach
Deep-learning-based methods can improve robustness against individual variations in computed tomography (CT) images of the...
Estimation of the lateral variation of photon beam energy spectra using the percentage depth dose reconstruction method
Estimation of the lateral variation of photon beam energy spectra using the percentage depth dose reconstruction method
In photon-collapsed cone convolution (pCCC) algorithm of the Monaco treatment planning system (TPS), the central-axis ener...
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...
Single-point macromolecular proton fraction mapping using a 0.3 T permanent magnet MRI system: phantom and healthy volunteer study
Single-point macromolecular proton fraction mapping using a 0.3 T permanent magnet MRI system: phantom and healthy volunteer study
In a 0.3 T permanent-magnet magnetic resonance imaging (MRI) system, quantifying myelin content is challenging ow...
Parameter optimisation for image acquisition and stacking in carbon dioxide digital subtraction angiography
Parameter optimisation for image acquisition and stacking in carbon dioxide digital subtraction angiography
The aim of this study was to optimise the vessel angle as well as the stack number from the profiles of carbon dioxide dig...
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...
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