Search Results - "Poulsen, Per Rugaard"

Dynamic Multileaf Collimator Tracking of Respiratory Target Motion Based on a Single Kilovoltage Imager During Arc Radiotherapy by Poulsen, Per Rugaard, Ph.D, Cho, Byungchul, Ph.D, Ruan, Dan, Ph.D, Sawant, Amit, Ph.D, Keall, Paul J., Ph.D

“…Purpose To demonstrate and characterize dynamic multileaf collimator (DMLC) tracking of respiratory moving targets that are spatially localized with a single…”
Get full text

A Method to Estimate Mean Position, Motion Magnitude, Motion Correlation, and Trajectory of a Tumor From Cone-Beam CT Projections for Image-Guided Radiotherapy by Poulsen, Per Rugaard, Ph.D, Cho, Byungchul, Ph.D, Keall, Paul J., Ph.D

“…Purpose To develop a probability-based method for estimating the mean position, motion magnitude, and trajectory of a tumor using cone-beam CT (CBCT)…”
Get full text

Difference between planned and delivered radiotherapy dose to the internal mammary nodes in high-risk breast cancer patients by Mølby Nielsen, Anders W., Spejlborg, Harald, Lutz, Christina Maria, Rugaard Poulsen, Per, Offersen, Birgitte Vrou

“…•The final frame of continuous portal images was used to estimate the delivered dose to the internal mammary nodes.•Delivered internal mammary node V90_CTV…”
Get full text

Real-Time Target Position Estimation Using Stereoscopic Kilovoltage/Megavoltage Imaging and External Respiratory Monitoring for Dynamic Multileaf Collimator Tracking by Cho, Byungchul, Ph.D, Poulsen, Per Rugaard, Ph.D, Sawant, Amit, Ph.D, Ruan, Dan, Ph.D, Keall, Paul J., Ph.D

“…Purpose To develop a real-time target position estimation method using stereoscopic kilovoltage (kV)/megavoltage (MV) imaging and external respiratory…”
Get full text

Editorial: Harnessing the potential of FLASH: questions we must address prior to effective clinical translation by Poulsen, Per Rugaard, Prise, Kevin M., MacKay, Ranald I.

Get full text

Three-dimensional liver motion tracking using real-time two-dimensional MRI by Brix, Lau, Ringgaard, Steffen, Sørensen, Thomas Sangild, Poulsen, Per Rugaard

“…Purpose: Combined magnetic resonance imaging (MRI) systems and linear accelerators for radiotherapy (MR-Linacs) are currently under development. MRI is…”
Get full text

The first clinical implementation of electromagnetic transponder-guided MLC tracking by Keall, Paul J., Colvill, Emma, O’Brien, Ricky, Ng, Jin Aun, Poulsen, Per Rugaard, Eade, Thomas, Kneebone, Andrew, Booth, Jeremy T.

“…Purpose: We report on the clinical process, quality assurance, and geometric and dosimetric results of the first clinical implementation of electromagnetic…”
Get full text

Efficient Interplay Effect Mitigation for Proton Pencil Beam Scanning by Spot-Adapted Layered Repainting Evenly Spread out Over the Full Breathing Cycle by Poulsen, Per Rugaard, Eley, John, Langner, Ulrich, Simone, Charles B., Langen, Katja

“…To develop and implement a practical repainting method for efficient interplay effect mitigation in proton pencil beam scanning (PBS). A new flexible…”
Get full text

AAPM Task Group 264: The safe clinical implementation of MLC tracking in radiotherapy by Keall, Paul J., Sawant, Amit, Berbeco, Ross I., Booth, Jeremy T., Cho, Byungchul, Cerviño, Laura I., Cirino, Eileen, Dieterich, Sonja, Fast, Martin F., Greer, Peter B., Munck af Rosenschöld, Per, Parikh, Parag J., Poulsen, Per Rugaard, Santanam, Lakshmi, Sherouse, George W., Shi, Jie, Stathakis, Sotirios

“…The era of real‐time radiotherapy is upon us. Robotic and gimbaled linac tracking are clinically established technologies with the clinical realization of…”
Get full text

Evaluation of in vitro irradiation setup: Designed for the horizontal beamline at the Danish Centre for Particle Therapy by Frederiksen, Anders Tobias, Jensen, Morten Bjørn, Poulsen, Per Rugaard, Bassler, Niels, Sørensen, Brita Singers, Sitarz, Mateusz

“…Radiobiological experimental setups are challenged by precise sample positioning along depth dose profile, scattering conditions, and practical difficulties…”
Get full text

The first clinical treatment with kilovoltage intrafraction monitoring (KIM): A real‐time image guidance method by Keall, Paul J., Aun Ng, Jin, O'Brien, Ricky, Colvill, Emma, Huang, Chen‐Yu, Rugaard Poulsen, Per, Fledelius, Walther, Juneja, Prabhjot, Simpson, Emma, Bell, Linda, Alfieri, Florencia, Eade, Thomas, Kneebone, Andrew, Booth, Jeremy T.

“…Purpose: Kilovoltage intrafraction monitoring (KIM) is a real‐time image guidance method that uses widely available radiotherapy technology, i.e., a…”
Get full text

Accuracy of four models and update strategies to estimate liver tumor motion from external respiratory motion by Samadi Miandoab, Payam, Worm, Esben, Hansen, Rune, Weber, Britta, Høyer, Morten, Saramad, Shahyar, Setayeshi, Saeed, Poulsen, Per Rugaard

“…This study investigates different strategies for estimating internal liver tumor motion during radiotherapy based on continuous monitoring of external…”
Get full text

An experimentally validated couch and MLC tracking simulator used to investigate hybrid couch‐MLC tracking by Toftegaard, Jakob, Hansen, Rune, Ravkilde, Thomas, Macek, Kristijan, Poulsen, Per Rugaard

“…Purpose/objective Couch and MLC tracking are two novel techniques to mitigate intrafractional tumor motion on a conventional linear accelerator, but both…”
Get full text

Target position uncertainty during visually guided deep-inspiration breath-hold radiotherapy in locally advanced lung cancer by Scherman Rydhög, Jonas, Riisgaard de Blanck, Steen, Josipovic, Mirjana, Irming Jølck, Rasmus, Larsen, Klaus Richter, Clementsen, Paul, Lars Andersen, Thomas, Poulsen, Per Rugaard, Fredberg Persson, Gitte, Munck af Rosenschold, Per

“…Abstract Purpose The purpose of this study was to estimate the uncertainty in voluntary deep-inspiration breath-hold (DIBH) radiotherapy for locally advanced…”
Get full text

Spread-out Bragg peak FLASH: quantifying normal tissue toxicity in a murine model by Kristensen, Line, Poulsen, Per Rugaard, Kanouta, Eleni, Rohrer, Sky, Ankjærgaard, Christina, Andersen, Claus E, Johansen, Jacob G, Simeonov, Yuri, Weber, Uli, Grau, Cai, Sørensen, Brita Singers

“…A favorable effect of ultra-high dose rate (FLASH) radiation on normal tissue-sparing has been indicated in several preclinical studies. In these studies, the…”
Get full text

Intrafraction tumor motion monitoring and dose reconstruction for liver pencil beam scanning proton therapy by Nankali, Saber, Worm, Esben Schjødt, Thomsen, Jakob Borup, Stick, Line Bjerregaard, Bertholet, Jenny, Høyer, Morten, Weber, Britta, Mortensen, Hanna Rahbek, Poulsen, Per Rugaard

“…Pencil beam scanning (PBS) proton therapy can provide highly conformal target dose distributions and healthy tissue sparing. However, proton therapy of…”
Get full text

Kilovoltage intrafraction motion monitoring and target dose reconstruction for stereotactic volumetric modulated arc therapy of tumors in the liver by Poulsen, Per Rugaard, Worm, Esben S, Petersen, Jørgen B.B, Grau, Cai, Fledelius, Walther, Høyer, Morten

“…Abstract Purpose To use intrafraction kilovoltage (kV) imaging during liver stereotactic body radiotherapy (SBRT) delivered by volumetric modulated arc therapy…”
Get full text

Image-Based Dynamic Multileaf Collimator Tracking of Moving Targets During Intensity-Modulated Arc Therapy by Poulsen, Per Rugaard, Ph.D, Fledelius, Walther, Ph.D, Cho, Byungchul, Ph.D, Keall, Paul, Ph.D

“…Purpose Intensity-modulated arc therapy (IMAT) enables efficient and highly conformal dose delivery. However, intrafraction motion may compromise the delivered…”
Get full text

A method of dose reconstruction for moving targets compatible with dynamic treatments by Poulsen, Per Rugaard, Schmidt, Mai Lykkegaard, Keall, Paul, Worm, Esben Schjødt, Fledelius, Walther, Hoffmann, Lone

“…Purpose: To develop a method that allows a commercial treatment planning system (TPS) to perform accurate dose reconstruction for rigidly moving targets and to…”
Get full text

Implementation of a New Method for Dynamic Multileaf Collimator Tracking of Prostate Motion in Arc Radiotherapy Using a Single kV Imager by Poulsen, Per Rugaard, Cho, Byungchul, Sawant, Amit, Keall, Paul J.

“…To implement a method for real-time prostate motion estimation with a single kV imager during arc radiotherapy and to integrate it with dynamic multileaf…”
Get full text