Evaluation of the setup discrepancy between 6D ExacTrac and cone beam computed tomography in spine stereotactic body radiation therapy.

The objective of this study was to analyze the difference in residual setup errors between 6D ExacTrac and 3D cone-beam computed tomography (CBCT) image-guided systems in spinal stereotactic body radiation therapy (SBRT). We investigated 76 patients with spinal tumors who received SBRT using Novalis...

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Autores principales:	Jaehyeon Park, Ji Woon Yea, Jae Won Park, Se An Oh
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2782d7a1b1a14bd191b7ffeb3b629399
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spelling	oai:doaj.org-article:2782d7a1b1a14bd191b7ffeb3b6293992021-11-25T06:23:39ZEvaluation of the setup discrepancy between 6D ExacTrac and cone beam computed tomography in spine stereotactic body radiation therapy.1932-620310.1371/journal.pone.0252234https://doaj.org/article/2782d7a1b1a14bd191b7ffeb3b6293992021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0252234https://doaj.org/toc/1932-6203The objective of this study was to analyze the difference in residual setup errors between 6D ExacTrac and 3D cone-beam computed tomography (CBCT) image-guided systems in spinal stereotactic body radiation therapy (SBRT). We investigated 76 patients with spinal tumors who received SBRT using Novalis Tx at our institution between January 2013 and September 2020. A Vac-lok (EZ-FIX®, Arlico Medical Company, South Korea) fixture and an assistive device, based on the region involved, were used to immobilize patients and to increase the inter-fractional setup reproducibility. The difference in the root mean square (RMS) between the 6D ExacTrac and 3D CBCT was -0.75 mm, 0.45 mm, 0.16 mm, and -0.03°; the RMS value was 1.31 mm, 1.06 mm, 0.87 mm, and 0.64°; and the standard deviation was 0.80 mm, 0.72 mm, 0.62 mm, and 0.44° for lateral, longitudinal, vertical, and yaw directions, respectively. The difference in the average RMS between ExacTrac and CBCT was <1.03 mm in the translation direction and <0.47° in the rotational direction; the results were statistically significant in the lateral, longitudinal, and vertical directions, but not in the yaw direction. Thus, it is necessary to verify the ExacTrac image according to the CBCT image.Jaehyeon ParkJi Woon YeaJae Won ParkSe An OhPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 5, p e0252234 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jaehyeon Park Ji Woon Yea Jae Won Park Se An Oh Evaluation of the setup discrepancy between 6D ExacTrac and cone beam computed tomography in spine stereotactic body radiation therapy.
description	The objective of this study was to analyze the difference in residual setup errors between 6D ExacTrac and 3D cone-beam computed tomography (CBCT) image-guided systems in spinal stereotactic body radiation therapy (SBRT). We investigated 76 patients with spinal tumors who received SBRT using Novalis Tx at our institution between January 2013 and September 2020. A Vac-lok (EZ-FIX®, Arlico Medical Company, South Korea) fixture and an assistive device, based on the region involved, were used to immobilize patients and to increase the inter-fractional setup reproducibility. The difference in the root mean square (RMS) between the 6D ExacTrac and 3D CBCT was -0.75 mm, 0.45 mm, 0.16 mm, and -0.03°; the RMS value was 1.31 mm, 1.06 mm, 0.87 mm, and 0.64°; and the standard deviation was 0.80 mm, 0.72 mm, 0.62 mm, and 0.44° for lateral, longitudinal, vertical, and yaw directions, respectively. The difference in the average RMS between ExacTrac and CBCT was <1.03 mm in the translation direction and <0.47° in the rotational direction; the results were statistically significant in the lateral, longitudinal, and vertical directions, but not in the yaw direction. Thus, it is necessary to verify the ExacTrac image according to the CBCT image.
format	article
author	Jaehyeon Park Ji Woon Yea Jae Won Park Se An Oh
author_facet	Jaehyeon Park Ji Woon Yea Jae Won Park Se An Oh
author_sort	Jaehyeon Park
title	Evaluation of the setup discrepancy between 6D ExacTrac and cone beam computed tomography in spine stereotactic body radiation therapy.
title_short	Evaluation of the setup discrepancy between 6D ExacTrac and cone beam computed tomography in spine stereotactic body radiation therapy.
title_full	Evaluation of the setup discrepancy between 6D ExacTrac and cone beam computed tomography in spine stereotactic body radiation therapy.
title_fullStr	Evaluation of the setup discrepancy between 6D ExacTrac and cone beam computed tomography in spine stereotactic body radiation therapy.
title_full_unstemmed	Evaluation of the setup discrepancy between 6D ExacTrac and cone beam computed tomography in spine stereotactic body radiation therapy.
title_sort	evaluation of the setup discrepancy between 6d exactrac and cone beam computed tomography in spine stereotactic body radiation therapy.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/2782d7a1b1a14bd191b7ffeb3b629399
work_keys_str_mv	AT jaehyeonpark evaluationofthesetupdiscrepancybetween6dexactracandconebeamcomputedtomographyinspinestereotacticbodyradiationtherapy AT jiwoonyea evaluationofthesetupdiscrepancybetween6dexactracandconebeamcomputedtomographyinspinestereotacticbodyradiationtherapy AT jaewonpark evaluationofthesetupdiscrepancybetween6dexactracandconebeamcomputedtomographyinspinestereotacticbodyradiationtherapy AT seanoh evaluationofthesetupdiscrepancybetween6dexactracandconebeamcomputedtomographyinspinestereotacticbodyradiationtherapy
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Evaluation of the setup discrepancy between 6D ExacTrac and cone beam computed tomography in spine stereotactic body radiation therapy.

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