Journal ArticleDOI
Computed tomography using proton energy loss
Kenneth M. Hanson,J. N. Bradbury,T. M. Cannon,R. L. Hutson,D. B. Laubacher,R. J. Macek,M. A. Paciotti,C. A. Taylor +7 more
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TLDR
Comparison with reconstructions from an EMI CT-5005 X-ray scanner showed the proton technique is more dose efficient by a large factor.Abstract:
An experiment has been performed to demonstrate the feasibility of proton computed tomography. The proton energy loss was used to measure the projections of the relative stopping power of the phantom. High quality reconstructions were obtained from scans of 19 cm and 30 cm diameter performance phantoms. Comparison with reconstructions from an EMI CT-5005 X-ray scanner showed the proton technique is more dose efficient by a large factor.read more
Citations
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The precision of proton range calculations in proton radiotherapy treatment planning: experimental verification of the relation between CT-HU and proton stopping power
Barbara Schaffner,Eros Pedroni +1 more
TL;DR: It was found that the agreement between measurement and calibration curve is better than 1% if beam hardening effects in the acquisition of the CT images can be neglected and an estimation for the overall range precision of proton beams is given.
Journal ArticleDOI
A maximum likelihood proton path formalism for application in proton computed tomography
TL;DR: A compact, matrix-based most likely path (MLP) formalism is presented employing Bayesian statistics and a Gaussian approximation of MCS to predict the Monte Carlo tracks of 200 MeV protons in GEANT4 simulations.
Journal ArticleDOI
Density resolution of proton computed tomography.
Reinhard W. Schulte,Vladimir Bashkirov,Margio Cezar Loss Klock,Tianfang Li,Andrew J. Wroe,Ivan Evseev,D.C. Williams,Todd Satogata +7 more
TL;DR: It is shown that a reasonable density resolution can be achieved with a relatively small dose, which is comparable to or even lower than that of x-ray CT.
Journal ArticleDOI
Proton radiography and tomography with application to proton therapy
TL;DR: This review introduces the principles of proton radiography and tomography, their historical developments, the raft of modern prototype systems and the primary design issues.
Journal ArticleDOI
Reconstruction for proton computed tomography by tracing proton trajectories: a Monte Carlo study.
Tianfang Li,Zhengrong Liang,Jayalakshmi V. Singanallur,Todd Satogata,D.C. Williams,Reinhard W. Schulte +5 more
TL;DR: This work demonstrates the advantage of tracking curved proton paths in conjunction with the ART algorithm and curved path estimates and shows progressive improvement of spatial resolution when going from the SLP to the curved CSP and MLP path estimates.
References
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