听力与言语-语言病理学

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  • Trajectory log analysis and cone-beam CT-based daily dose calculation to investigate the dosimetric accuracy of intensity-modulated radiotherapy for gynecologic cancer.

    abstract::This study evaluated unexpected dosimetric errors caused by machine control accuracy, patient setup errors, and patient weight changes/internal organ deformations. Trajectory log files for 13 gynecologic plans with seven- or nine-beam dynamic multileaf collimator (MLC) intensity-modulated radiation therapy (IMRT), and...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.13163

    authors: Utena Y,Takatsu J,Sugimoto S,Sasai K

    更新日期:2021-01-10 00:00:00

  • Clinical validation of ring-mounted halcyon linac for lung SBRT: comparison to SBRT-dedicated C-arm linac treatments.

    abstract::Stereotactic body radiotherapy (SBRT) of lung tumors via the ring-mounted Halcyon Linac, a fast kilovoltage cone beam CT-guided treatment with coplanar geometry, a single energy 6MV flattening filter free (FFF) beam and volumetric modulated arc therapy (VMAT) is a fast, safe, and feasible treatment modality for select...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.13146

    authors: Pokhrel D,Visak J,Critchfield LC,Stephen J,Bernard ME,Randall M,Kudrimoti M

    更新日期:2020-12-20 00:00:00

  • Clinical and imaging characteristics of breast ductal carcinoma in situ with microinvasion.

    abstract:BACKGROUND:We analyzed the clinical and imaging characteristics of patients with breast ductal carcinoma in situ with microinvasion (DCISM) and breast ductal carcinoma in situ (DCIS). METHODS:We analyzed the records of 40 patients diagnosed with DCISM and 61 patients with DCIS who were hospitalized at Shengjing Hospit...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.13122

    authors: Han S,Qiu F,Han Y,Xu Y,Yin J,Xing F,Bian X,He G

    更新日期:2020-12-17 00:00:00

  • Defining the dose-volume criteria for laryngeal sparing in locally advanced oropharyngeal cancer utilizing split-field IMRT, whole-field IMRT and VMAT.

    abstract:PURPOSE:To determine the optimal dose-volume constraint for laryngeal sparing using three commonly employed intensity modulated radiation therapy (IMRT) approaches in patients with oropharyngeal cancer treated to the bilateral neck. MATERIALS AND METHODS:Thirty patients with stage II-IVA oropharynx cancers received de...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.13009

    authors: Wilke C,Takiar V,Wang H,Moreno AC,Tung SS,Quinlan-Davidson SR,Garden AS,Rosenthal DI,Fuller CD,Gunn GB,Reddy JP,Morrison WH,Wang C,Zhao G,Hutcheson KA,Phan J

    更新日期:2020-12-05 00:00:00

  • Validation of the preconfigured Varian Ethos Acuros XB Beam Model for treatment planning dose calculations: A dosimetric study.

    abstract::Varian (Palo Alto, California, United States) recently released an online adaptation treatment platform, Ethos, which has introduced a new Dose Preview and Automated Plan Generation module despite sharing identical beam data with the existing Halcyon linac. The module incorporates a preconfigured beam model and the Ac...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.13056

    authors: Hu Y,Byrne M,Archibald-Heeren B,Collett N,Liu G,Aland T

    更新日期:2020-12-01 00:00:00

  • Surface and build-up dose comparison between Elekta 6 MV flattening filter and flattening-filter-free beams using an advanced Markus ionization chamber and a solid water-equivalent phantom.

    abstract::Using a plane-parallel advanced Markus ionization chamber and a stack of water-equivalent solid phantom blocks, percentage surface and build-up doses of Elekta 6 MV flattening filter (FF) and flattening-filter-free (FFF) beams were measured as a function of the phantom depth for field sizes ranging from 2 × 2 to 10 × ...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.13094

    authors: Imae T,Takenaka S,Watanabe Y,Aoki A,Matsuda K,Sasaki K,Saegusa S,Nawa K,Nakagawa K,Abe O

    更新日期:2020-12-01 00:00:00

  • Stereotactic radiotherapy of appropriately selected meningiomas and metastatic brain tumor beds with gamma knife icon versus volumetric modulated arc therapy.

    abstract:PURPOSE:To determine if the gamma knife icon (GKI) can provide superior stereotactic radiotherapy (SRT) dose distributions for appropriately selected meningioma and post-resection brain tumor bed treatments to volumetric modulated arc therapy (VMAT). MATERIALS AND METHODS:Appropriately selected targets were not proxim...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.13100

    authors: Buatti JS,Buatti JM,Yaddanapudi S,Pennington EC,Wang D,Gross B,St-Aubin JJ,Hyer DE,Smith MC,Flynn RT

    更新日期:2020-12-01 00:00:00

  • Evaluation of deep learning-based auto-segmentation algorithms for delineating clinical target volume and organs at risk involving data for 125 cervical cancer patients.

    abstract:OBJECTIVE:To evaluate the accuracy of a deep learning-based auto-segmentation mode to that of manual contouring by one medical resident, where both entities tried to mimic the delineation "habits" of the same clinical senior physician. METHODS:This study included 125 cervical cancer patients whose clinical target volu...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.13097

    authors: Wang Z,Chang Y,Peng Z,Lv Y,Shi W,Wang F,Pei X,Xu XG

    更新日期:2020-12-01 00:00:00

  • Automated phantom analysis for gamma cameras and SPECT: A methodology for use in a clinical setting.

    abstract:PURPOSE:We introduce an automated, quantitative image analysis package for gamma camera and single photon emission computed tomography quality control. Our focus was to produce consistent methods that are feasible in clinical settings and use standard phantoms. METHODS:Four gamma cameras were used to acquire planar im...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.13057

    authors: Tazegul TE,Polemi AM,Snyder A,Snyder C,Collins PG

    更新日期:2020-11-03 00:00:00

  • On the optimization of bone SPECT/CT in terms of image quality and radiation dose.

    abstract:INTRODUCTION:The purpose of this study was to present the optimization process of CT parameters to reduce patient exposure during bone SPECT/CT without affecting the quality of SPECT images with attenuation correction (AC). MATERIAL AND METHODS:A fillable phantom reflecting realistic bone scintigraphy conditions was d...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.13069

    authors: Tulik M,Tulik P,Kowalska T

    更新日期:2020-10-27 00:00:00

  • Gantry angle dependent beam control optimization of a traveling wave linear accelerator to improve VMAT delivery.

    abstract:INTRODUCTION:Increased modulation and dynamical delivery of external beam radiotherapy (EBRT), such as volumetric modulated arc therapy (VMAT) with dynamic gantry rotation, continuously variable dose rate (CVDR) and field shapes that change during the beam, place greater demands on the performance of linear accelerator...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.13047

    authors: van Appeldoorn AA,Kok JGM,Wolthaus JWH

    更新日期:2020-10-23 00:00:00

  • Impact of magnetic field regulation in conjunction with the volumetric repainting technique on the spot positions and beam range in pencil beam scanning proton therapy.

    abstract:PURPOSE:The objective of this study was to evaluate the impact of the magnetic field regulation in conjunction with the volumetric repainting technique on the spot positions and range in pencil beam scanning proton therapy. METHODS:"Field regulation" - a feature to reduce the switching time between layers by applying ...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.13045

    authors: Rana S,Bennouna J,Gutierrez AN,Rosenfeld AB

    更新日期:2020-10-15 00:00:00

  • Investigating the feasibility of generating dual-energy CT from one 120-kVp CT scan: a phantom study.

    abstract:INTRODUCTION:This study aimed to investigate the feasibility of generating pseudo dual-energy CT (DECT) from one 120-kVp CT by using convolutional neural network (CNN) to derive additional information for quantitative image analysis through phantom study. METHODS:Dual-energy scans (80/140 kVp) and single-energy scans ...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.13148

    authors: Huang WH,Jhan KJ,Yang CC

    更新日期:2020-10-14 00:00:00

  • Technical Note: Comparison of the internal target volume (ITV) contours and dose calculations on 4DCT, average CBCT, and 4DCBCT imaging for lung stereotactic body radiation therapy (SBRT).

    abstract:PURPOSE:To investigate the differences between internal target volumes (ITVs) contoured on the simulation 4DCT and daily 4DCBCT images for lung cancer patients treated with stereotactic body radiotherapy (SBRT) and determine the dose delivered on 4D planning technique. METHODS:For nine patients, 4DCBCTs were acquired ...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.13041

    authors: Dumas M,Laugeman E,Sevak P,Snyder KC,Mao W,Chetty IJ,Ajlouni M,Wen N

    更新日期:2020-10-12 00:00:00

  • Voxel-based supervised machine learning of peripheral zone prostate cancer using noncontrast multiparametric MRI.

    abstract:PURPOSE:The aim of this study was to develop and assess the performance of supervised machine learning technique to classify magnetic resonance imaging (MRI) voxels as cancerous or noncancerous using noncontrast multiparametric MRI (mp-MRI), comprised of T2-weighted imaging (T2WI), diffusion-weighted imaging (DWI), and...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12992

    authors: Gholizadeh N,Simpson J,Ramadan S,Denham J,Lau P,Siddique S,Dowling J,Welsh J,Chalup S,Greer PB

    更新日期:2020-10-01 00:00:00

  • Evaluation of the RUBY modular QA phantom for planar and non-coplanar VMAT and stereotactic radiations.

    abstract:PURPOSE:This study evaluates the clinical use of the RUBY modular QA phantom for linac QA to validate the integrity of IGRT workflows including the congruence of machine isocenter, imaging isocenter, and room lasers. The results have been benchmarked against those obtained with widely used systems. Additionally, the RU...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.13006

    authors: Poppinga D,Kretschmer J,Brodbek L,Meyners J,Poppe B,Looe HK

    更新日期:2020-10-01 00:00:00

  • Cross verification of independent dose recalculation, log files based, and phantom measurement-based pretreatment quality assurance for volumetric modulated arc therapy.

    abstract::Independent treatment planning system (TPS) check with Mobius3D software, log files based quality assurance (QA) with MobiusFX, and phantom measurement-based QA with ArcCHECK were performed and cross verified for head-and-neck (17 patients), chest (16 patients), and abdominal (19 patients) cancer patients who underwen...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.13036

    authors: Han C,Yi J,Zhu K,Zhou Y,Ai Y,Zheng X,Xie C,Jin X

    更新日期:2020-10-01 00:00:00

  • Deep learning and level set approach for liver and tumor segmentation from CT scans.

    abstract:PURPOSE:Segmentation of liver organ and tumors from computed tomography (CT) scans is an important task for hepatic surgical planning. Manual segmentation of liver and tumors is tedious, time-consuming, and biased to the clinician experience. Therefore, automatic segmentation of liver and tumors is highly desirable. It...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.13003

    authors: Alirr OI

    更新日期:2020-10-01 00:00:00

  • Accurate method for evaluating the duration of the entire radiotherapy process.

    abstract:BACKGROUND AND PURPOSE:Along with the increasing demand for high-quality radiotherapy and the growing number of high-precision radiotherapy devices, precise radiotherapy workflow management and accurate time evaluation of the entire radiotherapy process are crucial to providing appropriate, timely treatment for cancer ...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12959

    authors: Guo C,Huang P,Li Y,Dai J

    更新日期:2020-09-01 00:00:00

  • 177 Lutetium SPECT/CT: Evaluation of collimator, photopeak and scatter correction.

    abstract:PURPOSE:The goal of this study was to find the optimal combination of collimator, photopeak and scatter correction for 177 Lutetium (177 Lu) SPECT/CT imaging. METHODS:Three experiments [sphere-to-background ratios (SBR) 50:1, 10:1, and 2:1] were performed with the NEMA Image Quality phantom filled with 177 Lu-trichlor...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12991

    authors: Huizing DMV,Sinaasappel M,Dekker MC,Stokkel MPM,de Wit-van der Veen BJ

    更新日期:2020-09-01 00:00:00

  • Characterization of an inorganic scintillator for small-field dosimetry in MR-guided radiotherapy.

    abstract:INTRODUCTION:Aim of this study is to dosimetrically characterize a new inorganic scintillator designed for magnetic resonance-guided radiotherapy (MRgRT) in the presence of 0.35 tesla magnetic field (B). METHODS:The detector was characterized in terms of signal to noise ratio (SNR), reproducibility, dose linearity, an...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.13012

    authors: Cusumano D,Placidi L,D'Agostino E,Boldrini L,Menna S,Valentini V,De Spirito M,Azario L

    更新日期:2020-09-01 00:00:00

  • A robust VMAT delivery solution for single-fraction lung SABR utilizing FFF beams minimizing dosimetric compromise.

    abstract::Peripheral lung lesions treated with a single fraction of stereotactic ablative body radiotherapy (SABR) utilizing volumetric modulated arc therapy (VMAT) delivery and flattening filter-free (FFF) beams represent a potentially high-risk scenario for clinically significant dose blurring effects due to interplay between...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12919

    authors: Burton A,Offer K,Hardcastle N

    更新日期:2020-08-01 00:00:00

  • Evaluating the positional uncertainty of intrafraction, adjacent fields, and daily setup with the BrainLAB ExacTrac system in patients who are receiving craniospinal irradiation.

    abstract:PURPOSE:To investigate the daily setup, interfraction motion, variability in the junction areas, and dosimetric effect in craniospinal irradiation (CSI) patients. METHODS:Fifteen CSI patients who had undergone split-field IMRT were followed in the study. Previous, middle, and posttreatment, each target volume position...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12909

    authors: Duan X,Zhou Y,Dai H,Zhao L,Qian J,Yang D,Zhang L,Luo C,Li G

    更新日期:2020-08-01 00:00:00

  • An open-source software for monitoring intrafraction motion during external beam radiation therapy based on superimposition of contours of projected ROIs on cine-MV images.

    abstract:PURPOSE:To present an open-source software (https://github.com/CHUSRadOncPhys/FluoMV) for monitoring intrafraction motion that is based on the visualization of superimposed contours of projected region-of-interests from DICOM RTSTRUCT files on cine-MV images acquired and displayed in real-time during radiation therapy ...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12940

    authors: Lessard R,Tremblay NM,Plourde MÉ,Guillot M

    更新日期:2020-08-01 00:00:00

  • Development of a stereoscopic CT metal artifact management algorithm using gantry angle tilts for head and neck patients.

    abstract::Dental amalgams are a common source of artifacts in head and neck (HN) images. Commercial artifact reduction techniques have been offered, but are substantially ineffectual at reducing artifacts from dental amalgams, can produce additional artifacts, provide inaccurate HU information, or require extensive computation ...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12922

    authors: Branco D,Kry S,Taylor P,Rong J,Zhang X,Peterson C,Frank S,Followill D

    更新日期:2020-08-01 00:00:00

  • A review of patient questions from physicist-patient consults.

    abstract:PURPOSE:To provide insight into the types of questions asked to medical physicists by patients during one-on-one physicist-patient consults at one institution. MATERIALS AND METHODS:Medical physicists trained in patient communication techniques met with patients to provide an overview of the treatment planning and del...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12942

    authors: Atwood TF,Brown DW,Juang T,Moore KL,McConnell KA,Steers JM,Murphy JD,Mundt AJ,Pawlicki T

    更新日期:2020-08-01 00:00:00

  • A novel and clinically useful dynamic conformal arc (DCA)-based VMAT planning technique for lung SBRT.

    abstract:PURPOSE:Volumetric modulated arc therapy (VMAT) is gaining popularity for stereotactic treatment of lung lesions for medically inoperable patients. Due to multiple beamlets in delivery of highly modulated VMAT plans, there are dose delivery uncertainties associated with small-field dosimetry error and interplay effects...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12878

    authors: Pokhrel D,Visak J,Sanford L

    更新日期:2020-07-01 00:00:00

  • On the complexity of helical tomotherapy treatment plans.

    abstract:PURPOSE:Multiple metrics are proposed to characterize and compare the complexity of helical tomotherapy (HT) plans created for different treatment sites. METHODS:A cohort composed of 208 HT plans from head and neck (105), prostate (51) and brain (52) tumor sites was considered. For each plan, 14 complexity metrics wer...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12895

    authors: Santos T,Ventura T,Mateus J,Capela M,Lopes MDC

    更新日期:2020-07-01 00:00:00

  • The impact of isocentric shifts on delivery accuracy during the irradiation of small cerebral targets-Quantification and possible corrections.

    abstract:PURPOSE:To assess the impact of isocenter shifts due to linac gantry and table rotation during cranial stereotactic radiosurgery on D98 , target volume coverage (TVC), conformity (CI), and gradient index (GI). METHODS:Winston-Lutz (WL) checks were performed on two Elekta Synergy linacs. A stereotactic quality assuranc...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12854

    authors: Wack LJ,Exner F,Wegener S,Sauer OA

    更新日期:2020-05-01 00:00:00

  • Assessment of error in the MV radiation isocenter position calculated with the Elekta XVI software.

    abstract::The assessment of the coincidence of imaging and radiation isocenters is an important task of regular quality assurance of medical linear accelerators (linacs) as recommended in national and international quality assurance guidelines. A previously reported investigation of the accuracy of the Elekta XVI software to lo...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12861

    authors: Chojnowski JM,Warr GB,Sykes JR,Thwaites DI

    更新日期:2020-05-01 00:00:00

  • Dose deviations induced by respiratory motion for radiotherapy of lung tumors: Impact of CT reconstruction, plan complexity, and fraction size.

    abstract::A thorax phantom was used to assess radiotherapy dose deviations induced by respiratory motion of the target volume. Both intensity modulated and static, non-modulated treatment plans were planned on CT scans of the phantom. The plans were optimized using various CT reconstructions, to investigate whether they had an ...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12847

    authors: Sande EPS,Acosta Roa AM,Hellebust TP

    更新日期:2020-04-01 00:00:00

  • Standardized flattening filter free volumetric modulated arc therapy plans based on anteroposterior width for total body irradiation.

    abstract::In this work, the feasibility of using flattening filter free (FFF) beams in volumetric modulated arc therapy (VMAT) total body irradiation (TBI) treatment planning to decrease protracted beam-on times for these treatments was investigated. In addition, a methodology was developed to generate standardized VMAT TBI tre...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12827

    authors: Frederick R,Hudson A,Balogh A,Cao JQ,Pierce G

    更新日期:2020-03-01 00:00:00

  • Strategies to optimize stereotactic radiosurgery plans for brain tumors with volumetric-modulated arc therapy.

    abstract:PURPOSE:Prescription practice in SRS plans for brain tumors differs significantly for different modalities. In this retrospective study, the strategies to optimize SRS plans for brain tumors with volumetric arc therapy (VMAT) were presented. METHODS:Fifty clinically treated cases were stratified by the maximum target ...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12818

    authors: Wang D,DeNittis A,Hu Y

    更新日期:2020-03-01 00:00:00

  • Independent review of 4DCT scans used for SABR treatment planning.

    abstract::Four-dimensional computerized tomography (4DCT) is required for stereotactic ablative body radiotherapy (SABR) of mobile targets to account for tumor motion during treatment planning and delivery. In this study, we report on the impact of an image review quality assurance process performed prior to treatment planning ...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12825

    authors: Antony R,Lonski P,Ungureanu E,Hardcastle N,Yeo A,Siva S,Kron T

    更新日期:2020-03-01 00:00:00

  • Intrafractional relationship changes between an external breathing signal and fiducial marker positions in pancreatic cancer patients.

    abstract:BACKGROUND AND PURPOSE:The purpose of this study of pancreatic cancer patients treated with respiratory-guided stereotactic body radiotherapy (SBRT) on a standard linac was to investigate (a) the intrafractional relationship change (IRC) between a breathing signal and the tumor position, (b) the impact of IRC on the de...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12841

    authors: Pettersson N,Oderinde OM,Murphy J,Simpson D,Cerviño LI

    更新日期:2020-03-01 00:00:00

  • "Dose of the day" based on cone beam computed tomography and deformable image registration for lung cancer radiotherapy.

    abstract:PURPOSE:Adaptive radiotherapy (ART) has potential to reduce toxicity and facilitate safe dose escalation. Dose calculations with the planning CT deformed to cone beam CT (CBCT) have shown promise for estimating the "dose of the day". The purpose of this study is to investigate the "dose of the day" calculation accuracy...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12793

    authors: Yuan Z,Rong Y,Benedict SH,Daly ME,Qiu J,Yamamoto T

    更新日期:2020-01-01 00:00:00

  • Improved dosimetric accuracy with semi-automatic contour propagation of organs-at-risk in glioblastoma patients undergoing chemoradiation.

    abstract:BACKGROUND:We study the changes in organs-at-risk (OARs) morphology as contoured on serial MRIs during chemoradiation therapy (CRT) of glioblastoma (GBM). The dosimetric implication of assuming non-deformable OAR changes and the accuracy and feasibility of semi-automatic OAR contour propagation are investigated. METHO...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12758

    authors: Lee S,Stewart J,Lee Y,Myrehaug S,Sahgal A,Ruschin M,Tseng CL

    更新日期:2019-12-01 00:00:00

  • Intrafraction 4D-cone beam CT acquired during volumetric arc radiotherapy delivery: kV parameter optimization and 4D motion accuracy for lung stereotactic body radiotherapy (SBRT) patients.

    abstract:PURPOSE:Elekta XVI 5.0 allows for four-dimensional cone beam computed tomography (4D CBCT) image acquisition during treatment delivery to monitor intrafraction motion. These images can have poorer image quality due to undersampling of kV projections and treatment beam MV scatter effects. We determine if a universal int...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12755

    authors: Liang J,Lack D,Zhou J,Liu Q,Grills I,Yan D

    更新日期:2019-12-01 00:00:00

  • Calculating dose from a 2.5 MV imaging beam using a commercial treatment planning system.

    abstract::Patient dose from 2.5 MV images on the TrueBeam linear accelerator is not easily quantified, primarily because this beam energy is not normally modeled by commercial treatment planning systems. In this work we present the feasibility of using the Eclipse® treatment planning system to model this beam. The Acuros XB and...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12756

    authors: Ferris WS,Culberson WS,Anderson DR,Labby ZE

    更新日期:2019-12-01 00:00:00

  • Feasibility of the new copper pipe method for evaluating half-value layer in computed tomography: A measurement and Monte Carlo simulation study.

    abstract::This study aimed to verify the accuracy of half-value layer (HVL) measured using the new copper pipe method with the CT ionization chamber while the X-ray tube is rotating and to compare it with the conventional nonrotating method and Monte Carlo simulation method based on the actual measurement and geometry of the ne...

    journal_title:Journal of applied clinical medical physics

    pub_type: 杂志文章

    doi:10.1002/acm2.12780

    authors: Okubo R,Matsubara K,Chusin T,Hibino T,Ito Y

    更新日期:2019-12-01 00:00:00

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