Medical physics

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Tumor aware recurrent inter-patient deformable image registration of computed tomography scans with lung cancer. 2024
High-resolution motion compensation for brain PET imaging using real-time electromagnetic motion tracking.. 52. 2024
Assessment of dual time point protocols to produce parametric K_i images in FDG PET/CT: A virtual clinical study. 2024
On-board synthetic 4D MRI generation from 4D CBCT for radiotherapy of abdominal tumors: A feasibility study. 2024
Depth-encoding using optical photon TOF in a prism-PET detector with tapered crystals. 2024
Interleaved signal multiplexing readout in depth encoding Prism-PET detectors. 2023
A model for gastrointestinal tract motility in a 4D imaging phantom of human anatomy.. 50. 2023
Silicone-based materials with tailored MR relaxation characteristics for use in reduced coil visibility and in tissue-mimicking phantom design. 2023
A conformal TOF-DOI Prism-PET prototype scanner for high-resolution quantitative neuroimaging. 2023
Validating the accuracy of multispectral metal artifact suppressed diffusion-weighted imaging.. 49. 2022
Nested block self-attention multiple resolution residual network for multiorgan segmentation from CT.. 49. 2022
High-resolution and high-sensitivity PET for quantitative molecular imaging of the monoaminergic nuclei: A GATE simulation study.. 49. 2022
Patient-specific effects on sonication heating efficiency during magnetic resonance-guided focused ultrasound thalamotomy.. 48. 2021
Deep cross-modality (MR-CT) educed distillation learning for cone beam CT lung tumor segmentation.. 48. 2021
Technical Note: Patient-morphed mesh-type phantoms to support personalized nuclear medicine dosimetry - a proof of concept study.. 48. 2021
Sub-2 mm depth of interaction localization in PET detectors with prismatoid light guide arrays and single-ended readout using convolutional neural networks.. 48. 2021
Surface imaging for real-time patient respiratory function assessment in intensive care.. 48. 2020
Automating proton treatment planning with beam angle selection using Bayesian optimization.. 47. 2020
Technical Note: A custom-designed flexible MR coil array for spine radiotherapy treatment planning.. 47. 2020
A super-resolution framework for the reconstruction of T2-weighted (T2w) time-resolved (TR) 4DMRI using T1w TR-4DMRI as the guidance.. 47. 2020
Automated proton treatment planning with robust optimization using constrained hierarchical optimization.. 47. 2020
Physical performance of a long axial field-of-view PET scanner prototype with sparse rings configuration: A Monte Carlo simulation study.. 47. 2020
Patch-based generative adversarial neural network models for head and neck MR-only planning.. 47. 2019
Integrating soft and hard dose-volume constraints into hierarchical constrained IMRT optimization.. 47. 2019
LDeform: Longitudinal deformation analysis for adaptive radiotherapy of lung cancer.. 47. 2019
Dynamic multiatlas selection-based consensus segmentation of head and neck structures from CT images.. 46. 2019
Toward predicting the evolution of lung tumors during radiotherapy observed on a longitudinal MR imaging study via a deep learning algorithm.. 46. 2019
Cross-modality (CT-MRI) prior augmented deep learning for robust lung tumor segmentation from small MR datasets.. 46. 2019
Reliability of tumor segmentation in glioblastoma: Impact on the robustness of MRI-radiomic features.. 46. 2019
Automated intensity modulated treatment planning: The expedited constrained hierarchical optimization (ECHO) system.. 46. 2019
SparseCT: System concept and design of multislit collimators.. 46. 2019
Breast mass classification in sonography with transfer learning using a deep convolutional neural network and color conversion.. 46. 2019
Introduction of a pseudo demons force to enhance deformation range for robust reconstruction of super-resolution time-resolved 4DMRI.. 45. 2018
Technical Note: Extension of CERR for computational radiomics: A comprehensive MATLAB platform for reproducible radiomics research. 2018
A 4D global respiratory motion model of the thorax based on CT images: A proof of concept.. 45. 2018
2D-3D registration for cranial radiation therapy using a 3D kV CBCT and a single limited field-of-view 2D kV radiograph.. 45. 2018
Technical Note: Scintillation well counters and particle counting digital autoradiography devices can be used to detect activities associated with genomic profiling adequacy of biopsy specimens obtained after a low activity ¹⁸ F-FDG injection.. 45. 2018
Radiomics analysis of pulmonary nodules in low-dose CT for early detection of lung cancer.. 45. 2018
Technical Note: Kinect V2 surface filtering during gantry motion for radiotherapy applications.. 45. 2018
A clinically validated prediction method for facial soft-tissue changes following double-jaw surgery.. 44. 2017
Toward a standard for the evaluation of PET-Auto-Segmentation methods following the recommendations of AAPM task group No. 211: Requirements and implementation.. 44. 2017
Accuracy evaluation of a six-degree-of-freedom couch using cone beam CT and IsoCal phantom with an in-house algorithm.. 44. 2017
Multiatlas approach with local registration goodness weighting for MRI-based electron density mapping of head and neck anatomy.. 44. 2017
A fast, noniterative approach for accelerated high-temporal resolution cine-CMR using dynamically interleaved streak removal in the power-spectral encoded domain with low-pass filtering (DISPEL) and modulo-prime spokes (MoPS).. 44. 2017
Multi-site quality and variability analysis of 3D FDG PET segmentations based on phantom and clinical image data.. 44. 2017
Modification and validation of an analytical source model for external beam radiotherapy Monte Carlo dose calculations.. 43. 2016
Patient positioning in radiotherapy based on surface imaging using time of flight cameras.. 43. 2016
Texture analyses of quantitative susceptibility maps to differentiate Alzheimer's disease from cognitive normal and mild cognitive impairment.. 43. 2016
Optimizing fiducial visibility on periodically acquired megavoltage and kilovoltage image pairs during prostate volumetric modulated arc therapy.. 43. 2016
Weekly response assessment of involved lymph nodes to radiotherapy using diffusion-weighted MRI in oropharynx squamous cell carcinoma.. 43. 2016
Local respiratory motion correction for PET/CT imaging: Application to lung cancer.. 42. 2015
Technical Note: Intrafractional changes in time lag relationship between anterior-posterior external and superior-inferior internal motion signals in abdominal tumor sites.. 42. 2015
Treatment planning evaluation and optimization should be biologically and not dose/volume based.. 42. 2015
Simultaneous segmentation and iterative registration method for computing ADC with reduced artifacts from DW-MRI.. 42. 2015
Development of solid-state avalanche amorphous selenium for medical imaging.. 42. 2015
Cascaded systems analysis of photon counting detectors.. 41. 2014
Evaluation of tumor localization in respiration motion-corrected cone-beam CT: prospective study in lung.. 41. 2014
Assessing and accounting for the impact of respiratory motion on FDG uptake and viable volume for liver lesions in free-breathing PET using respiration-suspended PET images as reference.. 41. 2014
Automatic tracking of arbitrarily shaped implanted markers in kilovoltage projection images: a feasibility study.. 41. 2014
Dual-energy cone-beam CT with a flat-panel detector: effect of reconstruction algorithm on material classification.. 41. 2014
Effect of 176Lu intrinsic radioactivity on dual head PET system imaging and data acquisition, simulation, and experimental measurements.. 40. 2013
Event-by-event respiratory motion correction for PET with 3D internal-1D external motion correlation.. 40. 2013
Toward correcting drift in target position during radiotherapy via computer-controlled couch adjustments on a programmable Linac.. 40. 2013
Investigation of gated cone-beam CT to reduce respiratory motion blurring.. 40. 2013
Tracking the dynamic seroma cavity using fiducial markers in patients treated with accelerated partial breast irradiation using 3D conformal radiotherapy.. 40. 2013
A similarity study of content-based image retrieval system for breast cancer using decision tree.. 40. 2013
Fast transit portal dosimetry using density-scaled layer modeling of aSi-based electronic portal imaging device and Monte Carlo method.. 39. 2012
A study of respiration-correlated cone-beam CT scans to correct target positioning errors in radiotherapy of thoracic cancer.. 39. 2012
Measured dose rate constant from oncology patients administered 18F for positron emission tomography.. 39. 2012
Incorporation of treatment plan spatial and temporal dose patterns into a prostate intrafractional motion management strategy.. 39. 2012
Interactive semiautomatic contour delineation using statistical conditional random fields framework.. 39. 2012
Patient specific respiratory motion modeling using a 3D patient's external surface.. 39. 2012
Reduction of irregular breathing artifacts in respiration-correlated CT images using a respiratory motion model.. 39. 2012
SU-E-I-70: Semi-Automatic, User-Driven Breast, Chest Wall and FGT Segmentations Based on Hough Transform, Morphology Tools and Histogram Technology.. 39. 2012
SU-E-J-92: CERR: New Tools to Analyze Image Registration Precision.. 39. 2012
SU-E-T-259: A Statistical and Machine Learning-Based Tool for Modeling and Visualization of Radiotherapy Treatment Outcomes.. 39. 2012
SU-E-T-583: Feasibility of Constraining Dose to the Nausea Center (area Postrema and Dorsal Vagal Complex) in IMRT Treatment Planning of the Head and Neck.. 39. 2012
SU-E-T-620: Computational Boundary Sampling to Accelerate IMRT Optimization.. 39. 2012
WE-E-213CD-11: A New Automatically Generated Metric for Evaluating the Spatial Precision of Deformable Image Registrations: The Distance Discordance Metric.. 39. 2012
WE-E-BRB-11: Riview a Web-Based Viewer for Radiotherapy.. 39. 2012
WE-G-217BCD-01: BEST IN PHYSICS (IMAGING) - High-Quality CT Imaging in the Presence of Surgical Instrumentation Using Spectral System Models and Knowledge of Implanted Devices.. 39. 2012
WE-G-217BCD-04: Diagnostic Image Quality Evaluation of a Dedicated Extremity Cone- Beam CT Scanner: Pre-Clinical Studies and First Clinical Results.. 39. 2012
Automated beam placement for breast radiotherapy using a support vector machine based algorithm.. 39. 2012
Breast radiotherapy in the prone position primarily reduces the maximum out-of-field measured dose to the ipsilateral lung.. 39. 2012
The use and QA of biologically related models for treatment planning: short report of the TG-166 of the therapy physics committee of the AAPM.. 39. 2012
Task-based modeling and optimization of a cone-beam CT scanner for musculoskeletal imaging.. 38. 2011
A dedicated cone-beam CT system for musculoskeletal extremities imaging: design, optimization, and initial performance characterization.. 38. 2011
Determination of action thresholds for electromagnetic tracking system-guided hypofractionated prostate radiotherapy using volumetric modulated arc therapy.. 38. 2011
Technical note: Correlation of respiratory motion between external patient surface and internal anatomical landmarks.. 38. 2011
Magnetic resonance spectroscopy imaging in radiotherapy planning for recurrent glioma.. 38. 2011
Repeatability of SUV measurements in serial PET.. 38. 2011
Similarity evaluation in a content-based image retrieval (CBIR) CADx system for characterization of breast masses on ultrasound images.. 38. 2011
The Lung Image Database Consortium (LIDC) and Image Database Resource Initiative (IDRI): a completed reference database of lung nodules on CT scans.. 38. 2011
A novel respiratory tracking system for smart-gated PET acquisition.. 38. 2011
Technical note: DIRART--A software suite for deformable image registration and adaptive radiotherapy research.. 38. 2011
A support vector machine (SVM) for predicting preferred treatment position in radiotherapy of patients with breast cancer.. 37. 2010
Prostate and seminal vesicle volume based consideration of prostate cancer patients for treatment with 3D-conformal or intensity-modulated radiation therapy.. 37. 2010
Correction of motion artifacts in cone-beam CT using a patient-specific respiratory motion model.. 37. 2010
Dose correction strategy for the optimization of volumetric modulated arc therapy.. 37. 2010
Evaluation of respiration-correlated digital tomosynthesis in lung.. 37. 2010
Technical note: deformable image registration on partially matched images for radiotherapy applications.. 37. 2010
Influence of volumes of prostate, rectum, and bladder on treatment planning CT on interfraction prostate shifts during ultrasound image-guided IMRT.. 36. 2009
A robotic system for 18F-FMISO PET-guided intratumoral pO2 measurements.. 36. 2009
IMRT commissioning: multiple institution planning and dosimetry comparisons, a report from AAPM Task Group 119.. 36. 2009
2D-3D registration for prostate radiation therapy based on a statistical model of transmission images.. 36. 2009
An iterative technique to segment PET lesions using a Monte Carlo based mathematical model.. 36. 2009
Malignant lesion segmentation in contrast-enhanced breast MR images based on the marker-controlled watershed.. 36. 2009
Modeling acute and chronic hypoxia using serial images of 18F-FMISO PET.. 36. 2009
Considering marker visibility during leaf sequencing for segmental intensity-modulated radiation therapy.. 36. 2009
A new automated method for the segmentation and characterization of breast masses on ultrasound images.. 36. 2009
A low-cost density reference phantom for computed tomography.. 36. 2009
Deformable registration of abdominal kilovoltage treatment planning CT and tomotherapy daily megavoltage CT for treatment adaptation.. 36. 2009
In vivo quantification of contrast agent concentration using the induced magnetic field for time-resolved arterial input function measurement with MRI.. 35. 2008
Combining multiple models to generate consensus: application to radiation-induced pneumonitis prediction.. 35. 2008
4D-CT motion estimation using deformable image registration and 5D respiratory motion modeling.. 35. 2008
Automated 2D-3D registration of portal images and CT data using line-segment enhancement.. 35. 2008
Feasibility of small animal cranial irradiation with the microRT system.. 35. 2008
Geometric interpretation of the gamma dose distribution comparison technique: interpolation-free calculation.. 35. 2008
Image deconvolution in digital autoradiography: a preliminary study.. 35. 2008
Characterization of mammographic masses based on level set segmentation with new image features and patient information.. 35. 2008
A patient-specific respiratory model of anatomical motion for radiation treatment planning.. 34. 2007
Concurrent multimodality image segmentation by active contours for radiotherapy treatment planning.. 34. 2007
MicroRT-small animal conformal irradiator.. 34. 2007
A frequency-based approach to locate common structure for 2D-3D intensity-based registration of setup images in prostate radiotherapy.. 34. 2007
Accuracy and feasibility of cone-beam computed tomography for stereotactic radiosurgery setup.. 34. 2007
Design of respiration averaged CT for attenuation correction of the PET data from PET/CT.. 34. 2007
Ultrasonic tissue characterization via 2-D spectrum analysis: theory and in vitro measurements.. 34. 2007
Automated matching and segmentation of lymphoma on serial CT examinations.. 34. 2007
Retrospective monte carlo dose calculations with limited beam weight information.. 34. 2007
Deblurring of breathing motion artifacts in thoracic PET images by deconvolution methods.. 33. 2006
Pencil beam approach for correcting the energy dependence artifact in film dosimetry for IMRT verification.. 33. 2006
Progress toward a microradiation therapy small animal conformal irradiator.. 33. 2006
Low-dose megavoltage cone-beam computed tomography for lung tumors using a high-efficiency image receptor.. 33. 2006
Integrating respiratory gating into a megavoltage cone-beam CT system.. 33. 2006
Marker-controlled watershed for lymphoma segmentation in sequential CT images.. 33. 2006
Automated 2D-3D registration of a radiograph and a cone beam CT using line-segment enhancement.. 33. 2006
Evaluation of an automated deformable image matching method for quantifying lung motion in respiration-correlated CT images.. 33. 2006
A method to implement full six-degree target shift corrections for rigid body in image-guided radiotherapy.. 33. 2006
Image-fusion of MR spectroscopic images for treatment planning of gliomas.. 33. 2006
Validation of GATE Monte Carlo simulations of the GE Advance/Discovery LS PET scanners.. 33. 2006
Intra- and interfractional patient motion for a variety of immobilization devices.. 32. 2005
A new method of incorporating systematic uncertainties in intensity-modulated radiotherapy optimization.. 32. 2005
Accurate setup of paraspinal patients using a noninvasive patient immobilization cradle and portal imaging.. 32. 2005
Influence of phantom material and phantom size on radiographic film response in therapy photon beams.. 32. 2005
Effect of motion on tracer activity determination in CT attenuation corrected PET images: A lung phantom study.. 32. 2005
Effect of motion on tracer activity determination in CT attenuation corrected PET images: a lung phantom study.. 32. 2005
ROC study of the effect of stereoscopic imaging on assessment of breast lesions.. 32. 2005
Developments in megavoltage cone beam CT with an amorphous silicon EPID: reduction of exposure and synchronization with respiratory gating.. 32. 2005
A method for determining the gantry angle for megavoltage cone beam imaging.. 32. 2005
Four-dimensional (4D) PET/CT imaging of the thorax.. 31. 2004
Predicting energy response of radiographic film in a 6 MV x-ray beam using Monte Carlo calculated fluence spectra and absorbed dose.. 31. 2004
Quantitation of respiratory motion during 4D-PET/CT acquisition.. 31. 2004
A treatment planning study comparing HDR and AGIMRT for cervical cancer.. 31. 2004
Computerized characterization of breast masses on three-dimensional ultrasound volumes.. 31. 2004
Beamlet dose distribution compression and reconstruction using wavelets for intensity modulated treatment planning.. 31. 2004
Microdosimetry of astatine-211 single-cell irradiation: role of daughter polonium-211 diffusion.. 31. 2004
A stereotactic method for the three-dimensional registration of multi-modality biologic images in animals: NMR, PET, histology, and autoradiography.. 30. 2003
Quantitative imaging of bromine-76 and yttrium-86 with PET: a method for the removal of spurious activity introduced by cascade gamma rays.. 30. 2003
CERR: a computational environment for radiotherapy research.. 30. 2003
Respiration-correlated spiral CT: a method of measuring respiratory-induced anatomic motion for radiation treatment planning.. 30. 2003
Cone-beam CT with megavoltage beams and an amorphous silicon electronic portal imaging device: potential for verification of radiotherapy of lung cancer.. 29. 2002
Accelerating Monte Carlo simulations of radiation therapy dose distributions using wavelet threshold de-noising.. 29. 2002
Beyond bixels: generalizing the optimization parameters for intensity modulated radiation therapy.. 29. 2002
A simplified intensity modulated radiation therapy technique for the breast.. 29. 2002
Effect of respiratory gating on reducing lung motion artifacts in PET imaging of lung cancer.. 29. 2002
Computerized diagnosis of breast lesions on ultrasound.. 29. 2002
Delivery of intensity-modulated radiation therapy with a conventional multileaf collimator: comparison of dynamic and segmental methods.. 28. 2001
An iterative EPID calibration procedure for dosimetric verification that considers the EPID scattering factor.. 28. 2001
Comprehensive quality assurance for the delivery of intensity modulated radiotherapy with a multileaf collimator used in the dynamic mode.. 28. 2001
Automatic segmentation of breast lesions on ultrasound.. 28. 2001
Estimate of absorbed dose based on two-dimensional autoradiographic information in internal radionuclide therapy.. 28. 2001
Functional magnetic resonance imaging aided radiation treatment planning.. 27. 2000
Application of radiosurgery principles to a target in the breast: a dosimetric study.. 27. 2000
An automated iterative algorithm for water and fat decomposition in three-point Dixon magnetic resonance imaging.. 26. 1999
Two-dimensional multi-criterion segmentation of pulmonary nodules on helical CT images.. 26. 1999
Physical and dosimetric aspects of a multileaf collimation system used in the dynamic mode for implementing intensity modulated radiotherapy.. 25. 1998
A proton dose calculation algorithm for conformal therapy simulations based on Molière's theory of lateral deflections.. 25. 1998
Implementation of a Monte Carlo dosimetry method for patient-specific internal emitter therapy.. 24. 1997
Multiple local minima in radiotherapy optimization problems with dose-volume constraints.. 24. 1997
An investigation of tomotherapy beam delivery.. 24. 1997
An investigation of the physical characteristics of 66Ga as an isotope for PET imaging and quantification.. 24. 1997
Number and orientations of beams in intensity-modulated radiation treatments.. 24. 1997
Measured electron energy and angular distributions from clinical accelerators.. 23. 1996
Testing of dynamic multileaf collimation.. 23. 1996
Analysis of factors affecting the therapeutic gain in high dose rate gynecological implants relative to low dose rate implants.. 23. 1996
Dosimetric properties of a scanned beam microtron at low monitor unit settings: importance for conformal therapy.. 23. 1996
Dosimetric verification of intensity-modulated fields.. 23. 1996
Spatial mapping of the percentage cellularity in human bone marrow using magnetic resonance imaging.. 23. 1996
Electron dose profile shaping by modulation of a scanning elementary beam.. 23. 1996
Beam characteristics of a new generation 50 MeV racetrack microtron.. 22. 1995
Controlled mold geometry for surgical deficit treatment planning.. 22. 1995
A miniature MOSFET radiation dosimeter probe.. 21. 1994
A simple magnetic spectrometer for radiotherapy electron beams.. 21. 1994
Beam profiles along the nonwedged direction for large wedged fields.. 21. 1994
The spectral dependence of electron central-axis depth-dose curves.. 21. 1994
Dose calculation for photon beams with intensity modulation generated by dynamic jaw or multileaf collimations.. 21. 1994
Collision avoidance in computer optimized treatment planning.. 21. 1994
Extrapolation chamber measurements of 90Sr + 90Y beta-particle ophthalmic applicator dose rates.. 21. 1994
Automatic generation of beam apertures.. 20. 1993
Application of fast simulated annealing to optimization of conformal radiation treatments.. 20. 1993
Tomotherapy: a new concept for the delivery of dynamic conformal radiotherapy.. 20. 1993
A model for computer-controlled delivery of 3-D conformal treatments.. 19. 1992
Quantitative imaging of I-124 using positron emission tomography with applications to radioimmunodiagnosis and radioimmunotherapy.. 18. 1991
Compensators for three-dimensional treatment planning.. 18. 1991
Dose distribution of 125I sources in different tissues.. 17. 1990
Dose parameters of 125I and 192Ir seed sources.. 16. 1989
Accuracy and reproducibility of image derived relaxation times on a clinical 1.5 T magnetic resonance scanner.. 16. 1989
The effect of angular spread on the intensity distribution of arbitrarily shaped electron beams.. 15. 1988
Magnetic analysis of the radiation components of a 10 MV photon beam.. 9. 1982
Electrons as the cause of the observed dmax shift with field size in high energy photon beams.. 6. 1979
Improving the buildup and depth-dose characteristics of high energy photon beams by using electron filters.. 6. 1979
Measurements and calculations of the influence of thin inhomogeneities on charged particle beams.. 5. 1978
Flattening of proton dose distributions for large-field radiotherapy.. 4. 1977
Biomedical imaging research opportunities workshop IV: a white paper. 2007
Methodological issues in radiation dose-volume outcome analyses: summary of a joint AAPM/NIH workshop. 2002
Introducing the Medical Physics Dataset Article.. 44. 2017
Medical imaging data in the digital innovation age. 2018
Magnetic resonance spectroscopy and imaging in radiology. 1995

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