Search Results - "DeJongh, Ethan"

The potential of mixed carbon-helium beams for online treatment verification: a simulation and treatment planning study by Hardt, Jennifer J, Pryanichnikov, Alexander A, Homolka, Noa, DeJongh, Ethan A, DeJongh, Don F, Cristoforetti, Remo, Jäkel, Oliver, Seco, Joao, Wahl, Niklas

“…Recently, a new and promising approach for range verification was proposed. This method requires the use of two different ion species. Due to their equal…”
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Technical Note: A fast and monolithic prototype clinical proton radiography system optimized for pencil beam scanning by DeJongh, Ethan A., DeJongh, Don F., Polnyi, Igor, Rykalin, Victor, Sarosiek, Christina, Coutrakon, George, Duffin, Kirk L., Karonis, Nicholas T., Ordoñez, Caesar E., Pankuch, Mark, Winans, John R., Welsh, James S.

“…Purpose To demonstrate a proton‐imaging system based on well‐established fast scintillator technology to achieve high performance with low cost and complexity,…”
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A stopping criterion for iterative proton CT image reconstruction based on correlated noise properties by DeJongh, Ethan A., Pryanichnikov, Alexander A., DeJongh, Don F., Schulte, Reinhard W.

“…Background Whereas filtered back projection algorithms for voxel‐based CT image reconstruction have noise properties defined by the filter, iterative…”
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Analysis of characteristics of images acquired with a prototype clinical proton radiography system by Sarosiek, Christina, DeJongh, Ethan A., Coutrakon, George, DeJongh, Don F., Duffin, Kirk L., Karonis, Nicholas T., Ordoñez, Caesar E., Pankuch, Mark, Rykalin, Victor, Winans, John R., Welsh, James S.

“…Purpose Verification of patient‐specific proton stopping powers obtained in the patient’s treatment position can be used to reduce the distal and proximal…”
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A comparison of proton stopping power measured with proton CT and x‐ray CT in fresh postmortem porcine structures by DeJongh, Don F., DeJongh, Ethan A., Rykalin, Victor, DeFillippo, Greg, Pankuch, Mark, Best, Andrew W., Coutrakon, George, Duffin, Kirk L., Karonis, Nicholas T., Ordoñez, Caesar E., Sarosiek, Christina, Schulte, Reinhard W., Winans, John R., Block, Alec M., Hentz, Courtney L., Welsh, James S.

“…Purpose: Currently, calculations of proton range in proton therapy patients are based on a conversion of CT Hounsfield units of patient tissues into proton…”
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An Iterative Least Squares Method for Proton CT Image Reconstruction by DeJongh, Don F., DeJongh, Ethan A.

“…Clinically useful proton computed tomography images will rely on algorithms to find the 3-D proton stopping power distribution that optimally fits the measured…”
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Fast in situ image reconstruction for proton radiography by Ordoñez, Caesar E., Karonis, Nicholas T., Duffin, Kirk L., Winans, John R., DeJongh, Ethan A., DeJongh, Don F., Coutrakon, George, Myers, Nicole F., Pankuch, Mark, Welsh, James S.

“…Objective Proton beam therapy is an emerging modality for cancer treatment that, compared to X-ray radiation therapy, promises to provide better dose delivery…”
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Reconstructed and real proton radiographs for image-guidance in proton beam therapy by Miller, Chelsea, Altoos, Basel, DeJongh, Ethan A., Pankuch, Mark, DeJongh, Don F., Rykalin, Victor, Ordoñez, Caesar E., Karonis, Nicholas T., Winans, John R., Coutrakon, George, Welsh, James S.

“…One of the major challenges to proton beam therapy at this time is the uncertainty of the true range of a clinical treatment proton beam as it traverses the…”
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Comparative accuracy and resolution assessment of two prototype proton computed tomography scanners by Dedes, George, Drosten, Hubertus, Götz, Stefanie, Dickmann, Jannis, Sarosiek, Christina, Pankuch, Mark, Krah, Nils, Rit, Simon, Bashkirov, Vladimir, Schulte, Reinhard W., Johnson, Robert P., Parodi, Katia, DeJongh, Ethan, Landry, Guillaume

“…BackgroundImproving the accuracy of relative stopping power (RSP) in proton therapy may allow reducing range margins. Proton computed tomography (pCT) has been…”
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DEVELOPMENT OF A TREATMENT PLANNING AND SIMULATION FRAMEWORK FOR ADAPTIVE MIXED CARBON-HELIUM ION THERAPY by Hardt, Jennifer, Pryanichnikov, Alexander, Homolka, Noa, Dejongh, Ethan, Dejongh, Don F., Cristoforetti, Remo, Jäkel, Oliver, Seco, Joao, Wahl, Niklas

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P113 / #136 - DEVELOPMENT OF A TREATMENT PLANNING AND SIMULATION FRAMEWORK FOR ADAPTIVE MIXED CARBON-HELIUM ION THERAPY by Hardt, Jennifer, Pryanichnikov, Alexander, Homolka, Noa, Dejongh, Ethan, Dejongh, Don F., Cristoforetti, Remo, Jäkel, Oliver, Seco, Joao, Wahl, Niklas

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A Comparison of Proton Stopping Power Measured with Proton CT and x-ray CT in Fresh Post-Mortem Porcine Structures by DeJongh, Don F., DeJongh, Ethan A., Rykalin, Victor, DeFillippo, Greg, Pankuch, Mark, Best, Andrew W., Coutrakon, George, Duffin, Kirk L., Karonis, Nicholas T., Ordoñez, Caesar E., Sarosiek, Christina, Schulte, Reinhard W., Winans, John R., Block, Alec M., Hentz, Courtney L., Welsh, James S.

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An Iterative Least Squares Method for Proton CT Image Reconstruction by DeJongh, Don F, DeJongh, Ethan A

“…Clinically useful proton Computed Tomography images will rely on algorithms to find the three-dimensional proton stopping power distribution that optimally…”
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A stopping criterion for iterative proton CT image reconstruction based on correlated noise properties by DeJongh, Ethan A, Pryanichnikov, Alexander A, DeJongh, Don F, Schulte, Reinhard W

“…J Appl Clin Med Phys. 2023; 24:e14114 Background: Whereas filtered back projection algorithms for voxel-based CT image reconstruction have noise properties…”
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Analysis of characteristics of images acquired with a prototype clinical proton radiography system by Sarosiek, Christina, DeJongh, Ethan A, Coutrakon, George, DeJongh, Don F, Duffin, Kirk L, Karonis, Nicholas T, Ordoñez, Caesar E, Pankuch, Mark, Rykalin, Victor, Winans, John R, Welsh, James S

“…Med. Phys., 48: 2271-2278 (2021) Verification of patient specific proton stopping powers obtained in the patient treatment position can be used to reduce the…”
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Technical Note: A fast and monolithic prototype clinical proton radiography system optimized for pencil beam scanning by DeJongh, Ethan A, DeJongh, Don F, Polnyi, Igor, Rykalin, Victor, Sarosiek, Christina, Coutrakon, George, Duffin, Kirk L, Karonis, Nicholas T, Ordoñez, Caesar E, Pankuch, Mark, Winans, John R, Welsh, James S

“…Med. Phys., 48: 1356-1364 (2021) Purpose: To demonstrate a proton imaging system based on well-established fast scintillator technology to achieve high…”
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A Comparison of Proton Stopping Power Measured with Proton CT and x-ray CT in Fresh Post-Mortem Porcine Structures by DeJongh, Don F, DeJongh, Ethan A, Rykalin, Victor, DeFillippo, Greg, Pankuch, Mark, Best, Andrew W, Coutrakon, George, Duffin, Kirk L, Karonis, Nicholas T, Ordoñez, Caesar E, Sarosiek, Christina, Schulte, Reinhard W, Winans, John R, Block, Alec M, Hentz, Courtney L, Welsh, James S

“…Purpose: Currently, calculations of proton range in proton therapy patients are based on a conversion of CT Hounsfield Units of patient tissues into proton…”
Get full text