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Article
A deep learning method for predicting proton beam range and spread-out Bragg peak in passive scattering mode
It is difficult to calculate monitor units in the proton treatment planning system due to the complexity of using this system in the double scattering mode of proton therapy. Moreover, the range and spread-out...
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Article
Predicting vertebral compression fracture prior to spinal SBRT using radiomics from planning CT
The purpose of the study was to develop a predictive model for vertebral compression fracture (VCF) prior to spinal stereotactic body radiation therapy (SBRT) using radiomics features extracted from pre-treatm...
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Article
Using deep learning to predict radiation pneumonitis in patients treated with stereotactic body radiotherapy (SBRT) for pulmonary nodules: preliminary results
This study aimed to develop a predictive model using clinical, dosimetric, and radiomic features for radiation-induced pneumonitis (RP) after lung stereotactic body radiation therapy (SBRT). We retrospectively...
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Article
Open AccessAssessment of planning reproducibility in three-dimensional field-in-field radiotherapy technique for breast cancer: impact of surgery-simulation interval
The three-dimensional field-in-field (3-D FIF) technique for radiotherapy is an advanced, state-of-the-art method that uses multileaf collimators to generate a homogeneous and conformal dose distribution via s...
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Article
Analysis of plan parameters affecting the delivery quality assurance passing rate of the Tomo direct method in Radixact X9
Delivery quality assurance (DQA) is the process of establishing a treatment plan and verifying that the pre-treatment dose is delivered without any problems through a simulation. If the result does not meet ce...
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Article
Prediction of Tumor Temperature in Regional Hyperthermia by Using LED Luminance
Hyperthermia is used to destroy tumors by generating heat in the body (40–45 °C). In particular, regional hyperthermia entails intense heating of tumors rather than raising the temperature of the body. In regi...
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Article
Upfront radiosurgery plus targeted agents followed by active brain control using radiosurgery delays neurological death in non-small cell lung cancer with brain metastasis
The role of radiosurgery has become further accentuated in the era of targeted agents (TA). Thus, the neurologic outcome of radiosurgery in brain metastasis (BM) of non-small cell lung cancer (NSCLC) was revie...
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Article
Evaluation of Developed Thermal Distribution Prediction Algorithm Using Mass Density Distribution with CT Image
Prior to the hyperthermia, the amount of heat energy delivered to the tumors must be confirmed. If it cannot be confirmed before hyperthermia, normal tissues may also be heated, leading to possible necrosis. I...
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Article
Analysis of the Effect of Tomotherapy Plan Parameters on Patient-Specific Delivery Quality Assurance (DQA)
When Delivery Quality Assurance (DQA) results do not coincide with specific criteria, re-measurement and re-treatment planning are required because incorrect beam delivery to the patient may occur. Therefore, ...
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Article
Verification of lithium formate monohydrate in 3D-printed container for electron paramagnetic resonance dosimetry in radiotherapy
The nondestructive dosimetry achieved with electron paramagnetic resonance (EPR) dosimetry facilitates repetitive recording by the same dosimeter to increase the reliability of data. In precedent studies, soli...
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Article
Erratum: Development of Tissue Equivalent Materials for a Multi-modality (CT&MRI) Phantom in MRI-guided Radiation Treatment
In page 1014, there is an error in Eq. (1) that the author inadvertently missed out. The modification is as follows: Signal Intensity (SI) ∝ Mz ∝ Mz,0×(1−2 exp(−TI/T1)) ⇒ Signal Intensity (SI) ∝ Mz ∝ Mz,0×(1−exp(...
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Article
Development of an Algorithm for Predicting the Thermal Distribution by using CT Image and the Specific Absorption Rate
During hyperthermia therapy, cancer cells are heated to a temperature in the range of 40 ~ 45 °C for a defined time period to damage these cells while kee** healthy tissues at safe temperatures. Prior to hyp...
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Article
Development of Tissue Equivalent Materials for a Multi-modality (CT&MRI) Phantom in MRI-guided Radiation Treatment
This study proposed to develop a phantom material that can represent the various contrasts of both MRI and CT images and is available to use in MRI-guided radiation treatment. Materials used for making a phant...
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Article
A real time cost effective geometry calibration method for isocenter tracking of a rotating gantry using optical vision sensors
In this paper, a real time and cost effective deformation sensor system is proposed to verify isocenter sphere of a dual-head radiation imaging device within its driving range. For the effectiveness in sensing...
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Article
Evaluation of the clinical usefulness of modulated arc treatment
The purpose of this study is to evaluate the clinical usefulness of modulated arc (mARC) treatment techniques. The mARC treatment plans for non-small-cell lung cancer (NSCLC) patients were made in order to ver...
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Article
Evaluation of the Elekta Symmetry™ 4D IGRT system by using a moving lung phantom
Purpose: 4D cone-beam computed tomography (CBCT) is a beneficial tool for the treatment of movable tumors because it can help us to understand where the tumors are actually located and it has a precise treatme...
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Article
Evaluation of the EDGE detector in small-field dosimetry
This study evaluates a new diode detector design for small-field dosimetry. An accurate detector that has a small volume are necessary to compile data for stereotactic radiosurgery (SRS), stereotactic body rad...
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Article
Open AccessDetermination of the α/β ratio for the normal liver on the basis of radiation-induced hepatic toxicities in patients with hepatocellular carcinoma
The purpose of this study was to determine the α/β ratio for normal liver with hepatitis by analyzing the toxicity data from patients with unresectable hepatocellular carcinoma treated with helical tomotherapy.
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Article
Open AccessDosimetric parameter predicting the deterioration of hepatic function after helical tomotherapy in patients with unresectable locally advanced hepatocellular carcinoma
The purpose of this study was to identify parameters capable of predicting the deterioration of hepatic function after helical tomotherapy in patients with unresectable locally advanced hepatocellular carcinoma.
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Chapter and Conference Paper
Compared Evaluation for Direct Aperture Optimization (DAO) PROWESS in Intensity Modulation Radiotherapy (IMRT) Pinnacle 8.0 treatment planning
Intensity Modulated Radiation Therapy (IMRT) is a means of delivering radiation therapy where the intensity of the beam is varied within the treatment field. One of the main problems of IMRT, which becomes eve...
