Next generation optical surface sensing for real-time measurement in radiotherapy

James M. Parkhurst; Gareth J. Price; Phil J. Sharrock; Tom E. Marchant; Christopher J. Moore

doi:10.1109/IEMBS.2011.6091524

Next generation optical surface sensing for real-time measurement in radiotherapy

James M. Parkhurst, Gareth J. Price, Phil J. Sharrock, Tom E. Marchant, Christopher J. Moore

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

With the introduction of intensive new treatments such as hypo-fractionation and proton beam therapy, localization of the tumor target volume and tracking of points across the skin entrance surface have become critically important. Optical metrology has been used to monitor the patient's bulk position and motion throughout treatment. However systems have not been capable of high temporal and spatial resolution whole-surface topology measurement. We describe the implementation of such a system based on Fourier profilometry. Its algorithm is split into four separate processing stages, including spatial phase determination: descriptions of each stage are given along with the modifications made to increase performance. The optimized system is capable of processing 23 frames per second (fps), with each frame providing 512512 measured points. The data density, accuracy and performance of the system are an order of magnitude improvement on commercially available clinical systems. We show that this performance permits genuinely real-time measurement of a patient, live during both setup and radiation treatment delivery. It is also fast enough to provide smooth dynamic visualizations of motion at all points on the wraparound body surface for radiotherapy staff and intuitive, direct feed-back to patients. © 2011 IEEE.

Original language	English
Title of host publication	Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS\|Proc. Annu. Int. Conf. IEEE Eng. Med. Biol. Soc. EMBS
Pages	6170-6173
Number of pages	3
DOIs	https://doi.org/10.1109/IEMBS.2011.6091524
Publication status	Published - 2011
Event	33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011 - Boston, MA Duration: 1 Jul 2011 → … http://dx.doi.org/10.1109/IEMBS.2011.6091524

Conference

Conference	33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011
City	Boston, MA
Period	1/07/11 → …
Internet address	http://dx.doi.org/10.1109/IEMBS.2011.6091524

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Parkhurst, J. M., Price, G. J., Sharrock, P. J., Marchant, T. E., & Moore, C. J. (2011). Next generation optical surface sensing for real-time measurement in radiotherapy. In Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS|Proc. Annu. Int. Conf. IEEE Eng. Med. Biol. Soc. EMBS (pp. 6170-6173) https://doi.org/10.1109/IEMBS.2011.6091524

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title = "Next generation optical surface sensing for real-time measurement in radiotherapy",

abstract = "With the introduction of intensive new treatments such as hypo-fractionation and proton beam therapy, localization of the tumor target volume and tracking of points across the skin entrance surface have become critically important. Optical metrology has been used to monitor the patient's bulk position and motion throughout treatment. However systems have not been capable of high temporal and spatial resolution whole-surface topology measurement. We describe the implementation of such a system based on Fourier profilometry. Its algorithm is split into four separate processing stages, including spatial phase determination: descriptions of each stage are given along with the modifications made to increase performance. The optimized system is capable of processing 23 frames per second (fps), with each frame providing 512512 measured points. The data density, accuracy and performance of the system are an order of magnitude improvement on commercially available clinical systems. We show that this performance permits genuinely real-time measurement of a patient, live during both setup and radiation treatment delivery. It is also fast enough to provide smooth dynamic visualizations of motion at all points on the wraparound body surface for radiotherapy staff and intuitive, direct feed-back to patients. {\textcopyright} 2011 IEEE.",

author = "Parkhurst, {James M.} and Price, {Gareth J.} and Sharrock, {Phil J.} and Marchant, {Tom E.} and Moore, {Christopher J.}",

year = "2011",

doi = "10.1109/IEMBS.2011.6091524",

language = "English",

isbn = "9781424441211",

pages = "6170--6173",

booktitle = "Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS|Proc. Annu. Int. Conf. IEEE Eng. Med. Biol. Soc. EMBS",

note = "33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011 ; Conference date: 01-07-2011",

url = "http://dx.doi.org/10.1109/IEMBS.2011.6091524",

}

Parkhurst, JM, Price, GJ, Sharrock, PJ, Marchant, TE & Moore, CJ 2011, Next generation optical surface sensing for real-time measurement in radiotherapy. in Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS|Proc. Annu. Int. Conf. IEEE Eng. Med. Biol. Soc. EMBS. pp. 6170-6173, 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011, Boston, MA, 1/07/11. https://doi.org/10.1109/IEMBS.2011.6091524

Next generation optical surface sensing for real-time measurement in radiotherapy. / Parkhurst, James M.; Price, Gareth J.; Sharrock, Phil J. et al.
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS|Proc. Annu. Int. Conf. IEEE Eng. Med. Biol. Soc. EMBS. 2011. p. 6170-6173.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - With the introduction of intensive new treatments such as hypo-fractionation and proton beam therapy, localization of the tumor target volume and tracking of points across the skin entrance surface have become critically important. Optical metrology has been used to monitor the patient's bulk position and motion throughout treatment. However systems have not been capable of high temporal and spatial resolution whole-surface topology measurement. We describe the implementation of such a system based on Fourier profilometry. Its algorithm is split into four separate processing stages, including spatial phase determination: descriptions of each stage are given along with the modifications made to increase performance. The optimized system is capable of processing 23 frames per second (fps), with each frame providing 512512 measured points. The data density, accuracy and performance of the system are an order of magnitude improvement on commercially available clinical systems. We show that this performance permits genuinely real-time measurement of a patient, live during both setup and radiation treatment delivery. It is also fast enough to provide smooth dynamic visualizations of motion at all points on the wraparound body surface for radiotherapy staff and intuitive, direct feed-back to patients. © 2011 IEEE.

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M3 - Conference contribution

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BT - Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS|Proc. Annu. Int. Conf. IEEE Eng. Med. Biol. Soc. EMBS

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ER -

Next generation optical surface sensing for real-time measurement in radiotherapy

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