A5057282403- Head and Neck Cancer Studies
- Radiation Dose and Imaging
- Radiomics and Machine Learning in Medical Imaging
- Advanced X-ray and CT Imaging
- Head and Neck Surgical Oncology
- Digital Radiography and Breast Imaging
- Lung Cancer Research Studies
- Advanced Radiotherapy Techniques
- Cardiac Imaging and Diagnostics
- Medical Imaging and Analysis
- AI in cancer detection
- Thyroid Cancer Diagnosis and Treatment
- Advances in Oncology and Radiotherapy
- Radiology practices and education
- Cholangiocarcinoma and Gallbladder Cancer Studies
- Medical Imaging Techniques and Applications
- Cardiac, Anesthesia and Surgical Outcomes
- Gallbladder and Bile Duct Disorders
- Pancreatic and Hepatic Oncology Research
Chulalongkorn University
2022-2024
Chulabhorn Hospital
2017-2023
Mahidol University
2022
University of Denver
2022
When planning radiation therapy, late effects due to the treatment should be considered. One of most common complications head and neck therapy is hypothyroidism. Although clinical dosimetric data are routinely used assess risk hypothyroidism after radiation, outcome still unsatisfactory. Medical imaging can provide additional information that improves prediction In this study, pre-treatment computed tomography (CT) radiomics features thyroid gland were combined with from 220 participants...
Abstract To explore the feasibility of combined radiomics post-treatment I-131 total body scan (TBS) and clinical parameter to predict successful ablation in low-risk papillary thyroid carcinoma (PTC) patients. Data PTC patients who underwent total/near thyroidectomy 30 mCi between April 2015 July 2021 were retrospectively reviewed. The factors studied included age, sex, pre-ablative serum thyroglobulin (Tg). Radiomic features extracted via PyRadiomics, radiomic feature selection was...
Abstract Background and Aim Cholangiocarcinoma (CCA) is an aggressive malignancy with rapid progression poor prognosis. Abdominal ultrasound surveillance may detect early‐stage improve surgical outcome. However, little data exist on the benefits of abdominal in populations at high risk for CCA development endemic area. This study compared survival outcomes patients recruited through program those presented to hospital independent surveillance. Methods The population‐based cohort was 4225...
Objective: To assess the average glandular doses (AGD) from full-field digital mammography (FFDM) and breast tomosynthesis (DBT). Material Methods: Radiographic exposure parameters target/filter, tube voltage, current were collected 50 patients. Patient information including age, thickness, entrance surface air kerma (ESAK) AGD monitor display also recorded. The outputs (tube voltage loadings) at reference points in both FFDM DBT modes measured. was calculated ESAK by using correction...
Objective: The main purpose of this study was to investigate the typical dose for standard-sized patients in chest (posteroanterior; PA) and abdomen (anteroposterior; AP) digital radiography.Material Methods: air kerma measured by ionization chamber (Radical Corporation, model 10X6-6) X-ray equipment manufactured General Electric Healthcare Definium 8000 System different kilovoltage peak (kVp) settings each examination. entrance surface (ESAK) determined 422 mediumsized projections: (PA)...
Abstract Radiation-induced hypothyroidism (RHT) is a common long-term complication for nasopharyngeal carcinoma (NPC) survivors. A model using clinical and dosimetric factors predicting risk of RHT could suggest proper dose–volume parameters the treatment planning in an individual level. We aim to develop multivariable normal tissue probability (NTCP) NPC patients after intensity-modulated radiotherapy or volumetric modulated arc therapy. The was developed retrospective data thyroid...
Objective: To investigate the effective radiation dose and image quality of computed tomography angiography (CTA) before transcatheter aortic valve implantation (TAVI). Material Methods: This study involved 65 participants, diagnosed with stenosis examined CTA TAVI. The total mAs, kVp, volume CT index (CTDIvol), dose–length product (DLP) in each scanning phase were recorded. was calculated by multiplying DLP conversion coefficient (k=0.015 mSv/[mGy.cm]). For quantitative analysis, circular...
Hypothyroidism after treatment is the late-effect complication of head and neck radiotherapy. Early detection can greatly reduce hypothyroidism. The objective this study to enhance prediction hypothyroidism from radiation in nasopharyngeal cancer by using CT image-based biomarkers. We collected data 220 patients with carcinoma who underwent before therapy. Manual thyroid segmentation was performed on images. To create a model logistic regression regularization, image characteristics were...
Background: The trend in the use of fluoroscopic-guided transcatheter aortic valve implantation (TAVI) is increasing because procedure less invasive than surgical procedure. However, high radiation doses have been reported with Moreover, amount received by patients undergoing TAVI has never before registered Thailand. Objectives: This study aimed to investigate dose and effects sex body mass index (BMI) on at Chulabhorn Hospital. Materials methods: Data were collected during first 26 months...
Objective: This study aimed to develop an in-house breast phantom, and assess students’ knowledge satisfaction after using it for mammographic positioning training.Material Methods: The phantom was designed in a half-body shape, constructed primarily gelcoat resin, polyurethane foam, thermoreversible gel. Additionally, silicone type RA-210, known its high flexibility, tensile strength, elongation at break (620%), ability revert original incorporated. evaluated the effectiveness of utility...
Abstract Radiation-induced hypothyroidism (RHT) is a common long-term complication for nasopharyngeal carcinoma (NPC) survivors. A model using clinical and dosimetric factors predicting risk of RHT could suggest proper dose-volume parameters the treatment planning in an individual level. We aim to develop multivariable normal tissue probability (NTCP) NPC patients after intensity modulated radiotherapy (IMRT) or volumetric arc therapy (VMAT). The was developed data thyroid pituitary gland...