Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Louis K Y, Lee"'
Autor:
Michael L M, Cheung, Monica W K, Kan, Vanessa T Y, Yeung, Darren M C, Poon, Michael K M, Kam, Louis K Y, Lee, Anthony T C, Chan
Publikováno v:
Medical Dosimetry. 47:161-165
The purpose of this work was to study the radiobiological effect of using Acuros XB (AXB) vs Analytic Anisotropic Algorithm (AAA) on hepatocellular carcinoma (HCC) stereotactic body radiation therapy (SBRT). Seventy SBRT volumetric modulated arc ther
Autor:
Kenneth C.W. Wong, Macy Tong, Anthony T.C. Chan, Louis K Y Lee, Vivien W.S. Chu, Monica W.K. Kan
Publikováno v:
Radiation Medicine and Protection, Vol 2, Iss 3, Pp 103-111 (2021)
Objective To investigate the impact of different magnetic field strengths and orientations on the dose deposition from lateral opposing photon beams irradiating a laryngeal geometry, with particular attention focused on the dose homogeneity of the ar
Publikováno v:
Biomedical physicsengineering express. 8(6)
Objective. To study the effects of magnetic field gradients on the dose deposition in an inhomogeneous medium and to present the benefits offered by magnetic-field-modulated radiotherapy (MagMRT) under multiple radiation beams. Approach. Monte Carlo
Autor:
Monica W.K. Kan, Michael K.M. Kam, Michael L.M. Cheung, Vanessa Ty Yeung, Anthony T.C. Chan, Darren M.C. Poon, Louis K Y Lee
Publikováno v:
Advances in Radiation Oncology, Vol 6, Iss 5, Pp 100739-(2021)
Advances in Radiation Oncology
Advances in Radiation Oncology
Purpose This work was to establish an uncomplicated tumor control probability (UTCP) model using hepatocellular carcinoma (HCC) stereotactic body radiation therapy (SBRT) clinical data in our institution. The model was then used to analyze the curren
Autor:
Michael Km Kam, Louis K Y Lee, Michael Lok Man Cheung, D.M. Poon, Vanessa Ty Yeung, Anthony T.C. Chan, Monica Wk Kan
Publikováno v:
BJR Open
Objective: To retrospectively analyze the clinical impact on stereotactic body radiation therapy (SBRT) for hepatocellular carcinoma (HCC) located at lung–liver boundary due to the use of Acuros XB algorithm (AXB) in replacement of anisotropic anal
Publikováno v:
Physics in Medicine & Biology. 66:205014
Objective.The feasibility of magnetic-field-modulated radiotherapy (MagMRT) with an MR-LINAC was investigated by studying the effects of dose enhancement and reduction using a transverse magnetic field with a longitudinal gradient applied along a pho
SU-E-T-565: Multiple Channel Radiochromic Film Calibration with Spatial Dose Gradient Regularization
Publikováno v:
Medical Physics. 42:3465-3466
Purpose: To develop a new algorithm for multiple channel radiochromic film calibration and to evaluate the accuracy of the algorithm with virtual simulated film images. Methods: The proposed calibration method was based on least-square optimization o
Publikováno v:
Medical Physics. 42:3645-3645
Purpose: To develop a formulation for 4D treatment planning for a tumour tracking volumetric modulated arc therapy treatment (VMAT) plan for lung cancer. Methods: A VMAT plan was optimized based on a reference phase of the 4DCT of a lung cancer patie
Publikováno v:
Medical Physics. 42:3504-3504
Purpose: To examine the feasibility of using radiochromic film with advanced calibration techniques for absolute and relative dose measurement in patient-specific SBRT QA. Methods: Ten SBRT cases were randomly selected. The treatment plans were mappe
Autor:
Brian Kh Yu, Michael Km Kam, Louis K Y Lee, Darrell T H Li, Anthony T.C. Chan, Michael Lm Cheung
Publikováno v:
Medical Physics. 40:225-225
Purpose: To evaluate the surface dose characteristics of the flattened and flattening filter free (FFF) megavoltage photon beam with radiochromic film and compare the Result: with that from ion chamber. Methods: A Varian TrueBeam linear accelerator c