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Results for "mev activity": 13 found

An Alpha Irradiation System for Radiobiological Studies with Versatile Dose Rate Control

Authors: Harsh Arya, Yan Chang, Yujie Chi, Varghese Anto Chirayath, Joshua Rajan, Pan Zui

Affiliation: University of Texas at Arlington, Department of Physics, University of Texas at Arlington

Abstract Preview: Purpose: In targeted alpha therapy (TAT), absorbed dose rates can vary significantly spatially and temporally, impacting therapeutic efficacy as well as carcinogenic potential. This study reports the ...

BEST IN PHYSICS MULTI-DISCIPLINARY: Evaluation of Spot-Level N-12 PET Imaging for Online Range Verification in Multi-Field Intensity Modulated Proton Therapy

Authors: Zahra Ahmadi Ganjeh, Stefan Both, Peter Dendooven, Jeffrey Free, Brian Zapien Campos

Affiliation: Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Particle Therapy Research Center (PARTREC), Department of Radiation Oncology, University Medical Center Groningen, University of Groningen

Abstract Preview: Purpose: Positron emission tomography (PET) has been investigated for range monitoring in intensity-modulated proton therapy (IMPT), but real-time feedback been limited due to the focus on long-lived ...

BEST IN PHYSICS RADIOPHARMACEUTICALS, THERANOSTICS AND NUCLEAR MEDICINE: Characterization and Dose Rate Calibration of a Semiconductor-Based Radiation Imaging Survey Meter

Authors: Steven Brown, Mike Hopkins, Jerimy C. Polf, Scott Sawyer, Benjamin L. Viglianti

Affiliation: H3D, inc, University of Michigan, M3D, Inc, M3D Imaging

Abstract Preview: Purpose: We characterized the sensitivity, energy dependence, and calibrated dose rate for a radiation imaging survey meter (RAVIN Cam; M3d inc., Ann Arbor MI) based on cadmium zinc telluride (CZT) cr...

Development and Clinical Validation of an Analytical Approach for 3D Positron Emitter Distribution Prediction in Carbon Ion Therapy

Authors: Julia Bauer, Tianxue Du, Katia Parodi, Marco Pinto, Thomas Tessonnier

Affiliation: Department of Medical Physics, Ludwig-Maximilians-Universität (LMU) München, Heidelberg Ion Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Department of Medical Physics, Ludwig-Maximilians-Universität München (LMU Munich)

Abstract Preview: Purpose:
Carbon ion therapy could benefit from range verification due to its sensitivity to range uncertainties. Positron emission tomography (PET) aids in this and comparing irradiation-induced PE...

Evaluating DNA Damage Efficacy for 90y and 225ac Based Radiotherapy

Authors: Ramin Abolfath, Alejandro Bertolet, Kofi M. Deh, Rao Khan, Vanessa Sanders, Daniel Suarez-Garcia

Affiliation: Massachusetts General Hospital and Harvard Medical School, University of Sevilla, Brookhaven National Laboratory, Howard University

Abstract Preview: Purpose: To compare the efficacy of 225Ac to 90Y for local cancer therapy by quantifying DNA damage using Monte Carlo simulations.
Methods: The TOPAS n-Bio toolkit was used to simulate the irradiat...

Evaluating the Theranostic Potential of a Novel Shark Derived Anti-MET Vnar Antibody in NSCLC

Authors: Andrew M Baschnagel, Jonathan W. Engle, Jessica E. Griffin, Gihan Gunaratne, Reinier Hernandez, Randall J Kimple, Aaron M. LeBeau, Natalie Y. Luo, Rachel Minne, Caroline M. Mork, Kwangok P Nickel, Jayden West, Madalynn R. Wopat

Affiliation: University of Wisconsin, University of Wisconsin, Department of Pathology and Laboratory Medicine, Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin–Madison, University of Wisconsin - Department of Human Oncology, UW Madison, University of Wisconsin, Department of Medical Physics

Abstract Preview: Purpose: The Mesenchymal-Epithelial Transition gene (MET), a targetable cell surface receptor responsible for stimulating cell growth and proliferation, is altered in approximately 10% of non-small ce...

Evaluation of the Imaging Performance of PET-Linac As Compared to a Diagnostic PET/CT System for Small Tumors

Authors: Muhammad Ramish Ashraf, Girish Bal, Daniel Pham, Murat Surucu

Affiliation: RefleXion Medical, Department of Radiation Oncology, Stanford University School of Medicine, Stanford University

Abstract Preview: Purpose: To systematically evaluate the relationship between Activity Concentration (AC) obtained from the RefleXion PET-Linac with the maximum standardized uptake value (SUVmax) derived from a diagno...

First-Time Live Imaging of Radiopharmaceutical Administration with a Hybrid Compton Camera

Authors: Ramesh Boggula, Jay W. Burmeister

Affiliation: Wayne State University, Karmanos Cancer Center, Gershenson ROC, Wayne State University School of Medicine

Abstract Preview: Purpose: This study evaluated the performance of a hybrid Compton camera for real-time imaging during the administration of Lu-177-based radiopharmaceuticals, including Pluvicto and Lutathera. The aim...

Influence of Intrafraction Motion on the Dosimetry of Prostate Treatments

Authors: María Fernández, Inés Flores, Nuria Montero, Manuel Ruiz, Francisco San Miguel

Affiliation: Hospital Central de la Defensa 'Gómez Ulla', Hospital Central de la Defensa "Gomez Ulla", CSVE, Hospital Central de la Defensa 'Gómez Ulla', CSVE

Abstract Preview: Purpose:
During external radiotherapy treatments in the prostate, there can be PTV movements between fractions and during each treatment fraction. In a typical prostate treatment in our institution...

Innovative Design and Simulation of a Pediatric-Dedicated SPECT: Enhancing Imaging Performance for a Healthier Scans in Children

Authors: Mohammadreza Ay, Nahal Daneshgar, Nima Kasraie, Abbas Monsef, Zeinab Peymani, Hadi Rezaei, Peyman Sheikhzadeh

Affiliation: University of Minnesota Medical School, Radiation Oncology, Department of Nuclear Medicine, Shariati Hospital, Tehran University of Medical Sciences, Shiraz University of Medical Sciences, Department of Medical Physics, Tehran University of Medical Sciences, Department of Medical Physics and Biomedical Engineering, UT Southwestern Medical Center, Imam Khomeini Hospital Complex,Tehran University of Medical Sciences

Abstract Preview: Purpose:
This study aims to design and simulate an innovative pediatric-dedicated SPECT scanner optimized for children’s unique anatomical and safety needs by enhancing sensitivity in data acquisit...

Lu-177 Recovery Coefficients Using Tc-99m Surrogate Method: Intra- & Inter-Scanner Comparison

Authors: Ben Piacitelli, Celeste Winters

Affiliation: OHSU, Department of Diagnostic Radiology, Oregon Health & Science University

Abstract Preview: Purpose: To compare recovery coefficients measured with Lu-177 and Tc-99m with the goal of assessing accuracy of the Tc-99m surrogate method and comparing RC reproducibility between scanners of the sa...

Reconstructing Radiopharmaceutical Distributions Using Coded Aperture Tomography with Photon Counting Detector

Authors: David P. Adam, Xun Jia, Youfang Lai, Yuncheng Zhong

Affiliation: Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University, Johns Hopkins University

Abstract Preview: Purpose: Radiopharmaceutical therapy is experiencing a resurgence in interest due to its potential of treating widespread metastatic disease in a patient-specific manner. Accurately measuring and desc...

Using Multi-Peak Reconstructions for Dosimetry of Fast and Quantitative Lutetium-177 SPECT/CT

Authors: Julia Brosch-Lenz, Munir Ghesani, Francesc Massanes, Michael Morris, Babak Saboury, Eliot Siegel, Alexander Hans Vija

Affiliation: Institute of Nuclear Medicine, Siemens Medical Solutions USA Inc., Molecular Imaging

Abstract Preview: Purpose: Quantitative imaging of the radiopharmaceutical distribution is crucial for treatment evaluation and dosimetry. However, as patient numbers for Lutetium-177-(177Lu)-labelled therapies continu...