Search Results - "Olivera, Gustavo"

Assessment of Parotid Gland Dose Changes During Head and Neck Cancer Radiotherapy Using Daily Megavoltage Computed Tomography and Deformable Image Registration by Lee, Choonik, Ph.D, Langen, Katja M., Ph.D, Lu, Weiguo, Ph.D, Haimerl, Jason, M.S, Schnarr, Eric, Ph.D, Ruchala, Kenneth J., Ph.D, Olivera, Gustavo H., Ph.D, Meeks, Sanford L., Ph.D, Kupelian, Patrick A., M.D, Shellenberger, Thomas D., M.D., D.M.D, Mañon, Rafael R., M.D

“…Purpose To analyze changes in parotid gland dose resulting from anatomic changes throughout a course of radiotherapy in a cohort of head-and-neck cancer…”
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The management of imaging dose during image-guided radiotherapy: Report of the AAPM Task Group 75 by Murphy, Martin J., Balter, James, Balter, Stephen, BenComo, Jose A., Das, Indra J., Jiang, Steve B., Ma, C.-M., Olivera, Gustavo H., Rodebaugh, Raymond F., Ruchala, Kenneth J., Shirato, Hiroki, Yin, Fang-Fang

“…Radiographic image guidance has emerged as the new paradigm for patient positioning, target localization, and external beam alignment in radiotherapy. Although…”
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Image-guided total marrow and total lymphatic irradiation using helical tomotherapy by Schultheiss, Timothy E., Ph.D, Wong, Jeffrey, M.D, Liu, An, Ph.D, Olivera, Gustavo, Ph.D, Somlo, George, M.D

“…Purpose: To develop a treatment technique to spare normal tissue and allow dose escalation in total body irradiation (TBI). We have developed…”
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A simple fixed-point approach to invert a deformation field by Chen, Mingli, Lu, Weiguo, Chen, Quan, Ruchala, Kenneth J., Olivera, Gustavo H.

“…Inversion of deformation fields is applied frequently to map images, dose, and contours between the reference frame and the study frame. A prevailing approach…”
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Deformable registration of the planning image (kVCT) and the daily images (MVCT) for adaptive radiation therapy by Lu, Weiguo, Olivera, Gustavo H, Chen, Quan, Ruchala, Kenneth J, Haimerl, Jason, Meeks, Sanford L, Langen, Katja M, Kupelian, Patrick A

“…The incorporation of daily images into the radiotherapy process leads to adaptive radiation therapy (ART), in which the treatment is evaluated periodically and…”
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Evaluation of geometric changes of parotid glands during head and neck cancer radiotherapy using daily MVCT and automatic deformable registration by Lee, Choonik, Langen, Katja M, Lu, Weiguo, Haimerl, Jason, Schnarr, Eric, Ruchala, Kenneth J, Olivera, Gustavo H, Meeks, Sanford L, Kupelian, Patrick A, Shellenberger, Thomas D, Mañon, Rafael R

“…Abstract Background and purpose To assess and evaluate geometrical changes in parotid glands using deformable image registration and megavoltage CT (MVCT)…”
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Daily variations in delivered doses in patients treated with radiotherapy for localized prostate cancer by Kupelian, Patrick A, Langen, Katja M, Zeidan, Omar A, Meeks, Sanford L, Willoughby, Twyla R, Wagner, Thomas H, Jeswani, Sam, Ruchala, Kenneth J, Haimerl, Jason, Olivera, Gustavo H

“…The aim of this work was to study the variations in delivered doses to the prostate, rectum, and bladder during a full course of image-guided external beam…”
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Integral radiation dose to normal structures with conformal external beam radiation by Aoyama, Hidefumi, Westerly, David Clark, Mackie, Thomas Rockwell, Olivera, Gustavo H, Bentzen, Søren M, Patel, Rakesh R, Jaradat, Hazim, Tome, Wolfgang A, Ritter, Mark A, Mehta, Minesh P

“…This study was designed to evaluate the integral dose (ID) received by normal tissue from intensity-modulated radiotherapy (IMRT) for prostate cancer…”
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Radiation characteristics of helical tomotherapy by Jeraj, Robert, Mackie, Thomas R., Balog, John, Olivera, Gustavo, Pearson, Dave, Kapatoes, Jeff, Ruchala, Ken, Reckwerdt, Paul

“…Helical tomotherapy is a dedicated intensity modulated radiation therapy (IMRT) system with on-board imaging capability (MVCT) and therefore differs from…”
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Automatic re-contouring in 4D radiotherapy by Lu, Weiguo, Olivera, Gustavo H, Chen, Quan, Chen, Ming-Li, Ruchala, Kenneth J

“…Delineating regions of interest (ROIs) on each phase of four-dimensional (4D) computed tomography (CT) images is an essential step for 4D radiotherapy. The…”
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Assessment of benefits and risks associated with dengue vaccination at the individual and population levels: a dynamic modeling approach by Laurent Coudeville, Nicolas Baurin, Gustavo Olivera-Botello

“…Background: A case-cohort study, using a novel assay and data from three dengue vaccine efficacy trials, highlighted differences in vaccination outcomes…”
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Evaluation of two tomotherapy-based techniques for the delivery of whole-breast intensity-modulated radiation therapy by Gonzalez, Victor J, Buchholz, Daniel J, Langen, Katja M, Olivera, Gustavo H, Chauhan, Bhavin, Meeks, Sanford L, Ruchala, Kenneth J, Haimerl, Jason, Lu, Weiguo, Kupelian, Patrick A

“…To evaluate two different techniques for whole-breast treatments delivered using the Hi-ART II tomotherapy device. Tomotherapy uses the standard rotational…”
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Clinical helical tomotherapy commissioning dosimetry by Balog, John, Olivera, Gustavo, Kapatoes, Jeff

“…Helical tomotherapy presented many unique dosimetric challenges and solutions during the initial commissioning process, and some of them are presented. The…”
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3D Dose Verification Using Tomotherapy CT Detector Array by Sheng, Ke, Ph.D, Jones, Ryan, B.S, Yang, Wensha, Ph.D, Saraiya, Siddharth, B.S, Schneider, Bernard, M.D, Chen, Quan, Ph.D, Sobering, Geoff, Ph.D, Olivera, Gustavo, Ph.D, Read, Paul, M.D., Ph.D

“…Purpose To evaluate a three-dimensional dose verification method based on the exit dose using the onboard detector of tomotherapy. Methods and Materials The…”
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Monte Carlo-based analytical model for small and variable fields delivered by TomoTherapy by Sterpin, Edmond, Hundertmark, Brian T, Mackie, Thomas R, Lu, Weiguo, Olivera, Gustavo H, Vynckier, Stefaan

“…Abstract Background and purpose Extend to very small fields the validity of a Monte Carlo (MC) based model of TomoTherapy called TomoPen for future…”
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Treatment Planning to Improve Delivery Accuracy and Patient Throughput in Helical Tomotherapy by Westerly, David C., M.Sc, Soisson, Emilie, M.Sc, Chen, Quan, Ph.D, Woch, Katherine, M.Sc, Schubert, Leah, M.Sc, Olivera, Gustavo, Ph.D, Mackie, Thomas R., Ph.D

“…Purpose To investigate delivery quality assurance (DQA) discrepancies observed for a subset of helical tomotherapy patients. Methods and Materials Six…”
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Accurate convolution/superposition for multi-resolution dose calculation using cumulative tabulated kernels by Lu, Weiguo, Olivera, Gustavo H, Chen, Ming-Li, Reckwerdt, Paul J, Mackie, Thomas R

“…Convolution/superposition (C/S) is regarded as the standard dose calculation method in most modern radiotherapy treatment planning systems. Different…”
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Treatment plan optimization incorporating respiratory motion by Zhang, Tiezhi, Jeraj, Robert, Keller, Harry, Lu, Weiguo, Olivera, Gustavo H., McNutt, Todd R., Mackie, Thomas R., Paliwal, Bhudatt

“…Similar to conventional conformal radiotherapy, during lung tomotherapy, a motion margin has to be set for respiratory motion. Consequently, large volume of…”
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Dosimetric Effect of Prostate Motion During Helical Tomotherapy by Langen, Katja M., Ph.D, Lu, Weiguo, Ph.D, Willoughby, Twyla R., M.S, Chauhan, Bhavin, B.S, Meeks, Sanford L., Ph.D, Kupelian, Patrick A., M.D, Olivera, Gustavo, Ph.D

“…Purpose To assess the dosimetric consequence of intrafraction prostate motion on helical tomotherapy plans. Methods and Materials An electromagnetic tracking…”
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Re-optimization in adaptive radiotherapy by Wu, Chuan, Jeraj, Robert, Olivera, Gustavo H, Mackie, Thomas R

“…In routine clinical practice, radiotherapy treatment planning is performed based on the patient CT images obtained during the patient setup procedure. However,…”
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