A Method to Correct Cone Beam CT (CBCT) Images Using Planning CT for Derivation of Plan of the Day in STEREOTACTIC Body Radiotherapy (SBRT)

Roopam Srivastava; Shiva Gaur; Pramod Kumar Sharma; Manoj Sharma; Deepika Chauhan; Neha Sehgal; K Joseph Maria Das; Jayanand Manjhi

doi:doi:10.11648/j.ijcocr.20200502.13

A Method to Correct Cone Beam CT (CBCT) Images Using Planning CT for Derivation of Plan of the Day in STEREOTACTIC Body Radiotherapy (SBRT)

Roopam Srivastava, Shiva Gaur, Pramod Kumar Sharma, Manoj Sharma, Deepika Chauhan, Neha Sehgal, K Joseph Maria Das, Jayanand Manjhi

Published in International Journal of Clinical Oncology and Cancer Research (Volume 5, Issue 2)

Received: 7 December 2019 Accepted: 18 January 2020 Published: 15 June 2020

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Abstract

A robust method for voxel by voxel enhancement of Cone-beam CT (CBCT) images using a priori knowledge from the planning Computed Tomography (pCT) scan has been developed and used to evaluate the dosimetric accuracy of pCT based CBCT correction method for SBRT dose verification in lung metastasis. This is a retrospective study under which SBRT is carried out in 10 patients presented with lung metastasis. pCT images of patients were acquired and treatment planning was carried out on Varian Eclipse (V11) for 30 Gy in 5 fractions. Daily imaging using CBCT has been done for each patient with an On-Board Imaging system. CBCT is corrected using Matlab function considering CT as fixed and CBCT as moving, the images are registered. Planning target volume (PTV), lung, heart and spine were recontoured on uncorrected CBCT and corrected CBCT separately and the calculated plan on CT is recalculated on both the CBCTs. The dose distribution between the pCT and both the CBCT images were compared. A paired sample test was performed to test the variations. The distribution of pixel intensity of corrected CBCT is closer to the pCT than the uncorrected CBCT. The maximum percentage difference between the corrected CBCT and pCT is 1% in PTV evaluation, which is 3.5% between uncorrected CBCT and pCT. The method increases the accuracy of CBCT density values and enabling the use of CBCT images for dose calculation in radiotherapy.

Published in	International Journal of Clinical Oncology and Cancer Research (Volume 5, Issue 2)
DOI	10.11648/j.ijcocr.20200502.13
Page(s)	29-33
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2020. Published by Science Publishing Group

Keywords

CBCT Image Correction, SBRT, MATLAB, Lung

References

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[2]	Hatton J, McCurdy B, Greer PB. Cone beam computerized tomography: the effect of calibration of the Hounsfield unit number to electron density on dose calculation accuracy for adaptive radiation therapy. Phys Med Biol. 2009; 54 (15): N329–46.
[3]	Fotina I, Hopfgartner J, Stock M, Steininger T, Lutgendorf-Caucig C, Georg D: Feasibility of CBCT-based dose calculation: comparative analysis of HU adjustment techniques. Radiother Oncol 2012, 104: 249-256. 10.1016/j.radonc.2012.06.007.
[4]	Zhu L, Xie Y, Wang J, Xing L. Scatter correction for cone-beam CT in radiation therapy. Med Phys. 2009: 36 (6): 2258–68.
[5]	Niu, T., et al., Shading correction for on-board cone-beam CT in radiation therapy using planning MDCT images. Med Phys, 2010. 37 (10): p. 5395-406.
[6]	Wang J, Hu W, Cai G et al. Using corrected cone-beam CT image for accelerated partial breast irradiation treatment dose verification: the preliminary experience. Radiat Oncol 2013; 8: 214–222.
[7]	Zijtveld, M. van, Dirkx, M., Heijmen, B., “Correction of conebeam CT values using a planning CT for derivation of the dose of the day," Radiotherapy and Oncology 85 (2), 195-200 (2007).
[8]	Marchant, T. E., Moore, C. J., Rowbottom, C. G., MacKay, R. I., Williams, P. C., “Shading correction algorithm for improvement of cone-beam CT images in radiotherapy." Physics in Medicine and Biology 53 (20), 5719{5733 (2008).
[9]	Fan, Q., Lu, B., Park, J. C., Niu, T., Li, J. G., Liu, C., Zhu, L., “Image-domain shading correction for cone-beam CT without prior patient information," Journal of Applied Clinical Medical Physics 16 (6) (2015).
[10]	Vanderstraeten B, Chin PW, Fix M, Leal A, Mora G, Reynaert N, et al. Conversion of CT numbers into tissue parameters for Monte Carlo dose calculations: A multicentre study. Phys Med Biol 2007; 52: 539–62.
[11]	Poludniowski GG, Evans PM, Webb S: Cone beam computed tomography number errors and consequences for radiotherapy planning: an investigation of correction methods. Int J Radiat Oncol Biol Phys 2012, 84: e109-e114. 10.1016/j.ijrobp.2012.02.019.
[12]	R. Baker, G. Han, S. Sarangkasiri, M. DeMarco, C. Turke, C. Stevens and T. Dilling, "Clinical and Dosimetric Predictors of Radiation Pneumonitis in a Large Series of Patients Treated With Stereotactic Body Radiation Therapy to the Lung," International Journal of Radiation Oncology* Biology* Physics, 2012.
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[14]	Michael MacFarlane, Daniel Wong, Douglas A. et al. Patient-specific calibration of cone-beam computed tomography data sets for radiotherapy dose calculations and treatment plan assessment. J Appl Clin Med Phys. 2018 Mar; 19 (2): 249–257.
[15]	Schmidt ML, Hoffmann L, Kandi M, Moller DS, Poulsen PR. Dosimetric impact of respiratory motion, interfraction baseline shifts, and anatomical changes in radiotherapy of non-small cell lung cancer. Acta Oncol 2013; 52: 1490–6.

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Roopam Srivastava, Shiva Gaur, Pramod Kumar Sharma, Manoj Sharma, Deepika Chauhan, et al. (2020). A Method to Correct Cone Beam CT (CBCT) Images Using Planning CT for Derivation of Plan of the Day in STEREOTACTIC Body Radiotherapy (SBRT). International Journal of Clinical Oncology and Cancer Research, 5(2), 29-33. https://doi.org/10.11648/j.ijcocr.20200502.13

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ACS Style

Roopam Srivastava; Shiva Gaur; Pramod Kumar Sharma; Manoj Sharma; Deepika Chauhan, et al. A Method to Correct Cone Beam CT (CBCT) Images Using Planning CT for Derivation of Plan of the Day in STEREOTACTIC Body Radiotherapy (SBRT). Int. J. Clin. Oncol. Cancer Res. 2020, 5(2), 29-33. doi: 10.11648/j.ijcocr.20200502.13

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AMA Style

Roopam Srivastava, Shiva Gaur, Pramod Kumar Sharma, Manoj Sharma, Deepika Chauhan, et al. A Method to Correct Cone Beam CT (CBCT) Images Using Planning CT for Derivation of Plan of the Day in STEREOTACTIC Body Radiotherapy (SBRT). Int J Clin Oncol Cancer Res. 2020;5(2):29-33. doi: 10.11648/j.ijcocr.20200502.13

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@article{10.11648/j.ijcocr.20200502.13,
  author = {Roopam Srivastava and Shiva Gaur and Pramod Kumar Sharma and Manoj Sharma and Deepika Chauhan and Neha Sehgal and K Joseph Maria Das and Jayanand Manjhi},
  title = {A Method to Correct Cone Beam CT (CBCT) Images Using Planning CT for Derivation of Plan of the Day in STEREOTACTIC Body Radiotherapy (SBRT)},
  journal = {International Journal of Clinical Oncology and Cancer Research},
  volume = {5},
  number = {2},
  pages = {29-33},
  doi = {10.11648/j.ijcocr.20200502.13},
  url = {https://doi.org/10.11648/j.ijcocr.20200502.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijcocr.20200502.13},
  abstract = {A robust method for voxel by voxel enhancement of Cone-beam CT (CBCT) images using a priori knowledge from the planning Computed Tomography (pCT) scan has been developed and used to evaluate the dosimetric accuracy of pCT based CBCT correction method for SBRT dose verification in lung metastasis. This is a retrospective study under which SBRT is carried out in 10 patients presented with lung metastasis. pCT images of patients were acquired and treatment planning was carried out on Varian Eclipse (V11) for 30 Gy in 5 fractions. Daily imaging using CBCT has been done for each patient with an On-Board Imaging system. CBCT is corrected using Matlab function considering CT as fixed and CBCT as moving, the images are registered. Planning target volume (PTV), lung, heart and spine were recontoured on uncorrected CBCT and corrected CBCT separately and the calculated plan on CT is recalculated on both the CBCTs. The dose distribution between the pCT and both the CBCT images were compared. A paired sample test was performed to test the variations. The distribution of pixel intensity of corrected CBCT is closer to the pCT than the uncorrected CBCT. The maximum percentage difference between the corrected CBCT and pCT is 1% in PTV evaluation, which is 3.5% between uncorrected CBCT and pCT. The method increases the accuracy of CBCT density values and enabling the use of CBCT images for dose calculation in radiotherapy.},
 year = {2020}
}

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TY  - JOUR
T1  - A Method to Correct Cone Beam CT (CBCT) Images Using Planning CT for Derivation of Plan of the Day in STEREOTACTIC Body Radiotherapy (SBRT)
AU  - Roopam Srivastava
AU  - Shiva Gaur
AU  - Pramod Kumar Sharma
AU  - Manoj Sharma
AU  - Deepika Chauhan
AU  - Neha Sehgal
AU  - K Joseph Maria Das
AU  - Jayanand Manjhi
Y1  - 2020/06/15
PY  - 2020
N1  - https://doi.org/10.11648/j.ijcocr.20200502.13
DO  - 10.11648/j.ijcocr.20200502.13
T2  - International Journal of Clinical Oncology and Cancer Research
JF  - International Journal of Clinical Oncology and Cancer Research
JO  - International Journal of Clinical Oncology and Cancer Research
SP  - 29
EP  - 33
PB  - Science Publishing Group
SN  - 2578-9511
UR  - https://doi.org/10.11648/j.ijcocr.20200502.13
AB  - A robust method for voxel by voxel enhancement of Cone-beam CT (CBCT) images using a priori knowledge from the planning Computed Tomography (pCT) scan has been developed and used to evaluate the dosimetric accuracy of pCT based CBCT correction method for SBRT dose verification in lung metastasis. This is a retrospective study under which SBRT is carried out in 10 patients presented with lung metastasis. pCT images of patients were acquired and treatment planning was carried out on Varian Eclipse (V11) for 30 Gy in 5 fractions. Daily imaging using CBCT has been done for each patient with an On-Board Imaging system. CBCT is corrected using Matlab function considering CT as fixed and CBCT as moving, the images are registered. Planning target volume (PTV), lung, heart and spine were recontoured on uncorrected CBCT and corrected CBCT separately and the calculated plan on CT is recalculated on both the CBCTs. The dose distribution between the pCT and both the CBCT images were compared. A paired sample test was performed to test the variations. The distribution of pixel intensity of corrected CBCT is closer to the pCT than the uncorrected CBCT. The maximum percentage difference between the corrected CBCT and pCT is 1% in PTV evaluation, which is 3.5% between uncorrected CBCT and pCT. The method increases the accuracy of CBCT density values and enabling the use of CBCT images for dose calculation in radiotherapy.
VL  - 5
IS  - 2
ER  -

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Author Information

Roopam Srivastava

Department of Radiation Oncology, IOSPL, Fortis Hospital, Noida, India
Shiva Gaur

Department of Radiation Oncology, IOSPL, Fortis Hospital, Noida, India
Pramod Kumar Sharma

Department of Radiation Oncology, IOSPL, Fortis Hospital, Noida, India
Manoj Sharma

Department of Radiation Oncology, IOSPL, Fortis Hospital, Noida, India
Deepika Chauhan

Department of Radiation Oncology, IOSPL, Fortis Hospital, Noida, India
Neha Sehgal

Department of Radiation Oncology, IOSPL, Fortis Hospital, Noida, India
K Joseph Maria Das

Department of Radiation Oncology, Sanjay Gandhi Post Graduate Institute, Lucknow, India
Jayanand Manjhi

Department of Biomedical Engineering, Shobhit University, Merrut, India

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APA Style

Roopam Srivastava, Shiva Gaur, Pramod Kumar Sharma, Manoj Sharma, Deepika Chauhan, et al. (2020). A Method to Correct Cone Beam CT (CBCT) Images Using Planning CT for Derivation of Plan of the Day in STEREOTACTIC Body Radiotherapy (SBRT). International Journal of Clinical Oncology and Cancer Research, 5(2), 29-33. https://doi.org/10.11648/j.ijcocr.20200502.13

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ACS Style

Roopam Srivastava; Shiva Gaur; Pramod Kumar Sharma; Manoj Sharma; Deepika Chauhan, et al. A Method to Correct Cone Beam CT (CBCT) Images Using Planning CT for Derivation of Plan of the Day in STEREOTACTIC Body Radiotherapy (SBRT). Int. J. Clin. Oncol. Cancer Res. 2020, 5(2), 29-33. doi: 10.11648/j.ijcocr.20200502.13

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AMA Style

Roopam Srivastava, Shiva Gaur, Pramod Kumar Sharma, Manoj Sharma, Deepika Chauhan, et al. A Method to Correct Cone Beam CT (CBCT) Images Using Planning CT for Derivation of Plan of the Day in STEREOTACTIC Body Radiotherapy (SBRT). Int J Clin Oncol Cancer Res. 2020;5(2):29-33. doi: 10.11648/j.ijcocr.20200502.13

Copy | Download

@article{10.11648/j.ijcocr.20200502.13,
  author = {Roopam Srivastava and Shiva Gaur and Pramod Kumar Sharma and Manoj Sharma and Deepika Chauhan and Neha Sehgal and K Joseph Maria Das and Jayanand Manjhi},
  title = {A Method to Correct Cone Beam CT (CBCT) Images Using Planning CT for Derivation of Plan of the Day in STEREOTACTIC Body Radiotherapy (SBRT)},
  journal = {International Journal of Clinical Oncology and Cancer Research},
  volume = {5},
  number = {2},
  pages = {29-33},
  doi = {10.11648/j.ijcocr.20200502.13},
  url = {https://doi.org/10.11648/j.ijcocr.20200502.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijcocr.20200502.13},
  abstract = {A robust method for voxel by voxel enhancement of Cone-beam CT (CBCT) images using a priori knowledge from the planning Computed Tomography (pCT) scan has been developed and used to evaluate the dosimetric accuracy of pCT based CBCT correction method for SBRT dose verification in lung metastasis. This is a retrospective study under which SBRT is carried out in 10 patients presented with lung metastasis. pCT images of patients were acquired and treatment planning was carried out on Varian Eclipse (V11) for 30 Gy in 5 fractions. Daily imaging using CBCT has been done for each patient with an On-Board Imaging system. CBCT is corrected using Matlab function considering CT as fixed and CBCT as moving, the images are registered. Planning target volume (PTV), lung, heart and spine were recontoured on uncorrected CBCT and corrected CBCT separately and the calculated plan on CT is recalculated on both the CBCTs. The dose distribution between the pCT and both the CBCT images were compared. A paired sample test was performed to test the variations. The distribution of pixel intensity of corrected CBCT is closer to the pCT than the uncorrected CBCT. The maximum percentage difference between the corrected CBCT and pCT is 1% in PTV evaluation, which is 3.5% between uncorrected CBCT and pCT. The method increases the accuracy of CBCT density values and enabling the use of CBCT images for dose calculation in radiotherapy.},
 year = {2020}
}

Copy | Download

TY  - JOUR
T1  - A Method to Correct Cone Beam CT (CBCT) Images Using Planning CT for Derivation of Plan of the Day in STEREOTACTIC Body Radiotherapy (SBRT)
AU  - Roopam Srivastava
AU  - Shiva Gaur
AU  - Pramod Kumar Sharma
AU  - Manoj Sharma
AU  - Deepika Chauhan
AU  - Neha Sehgal
AU  - K Joseph Maria Das
AU  - Jayanand Manjhi
Y1  - 2020/06/15
PY  - 2020
N1  - https://doi.org/10.11648/j.ijcocr.20200502.13
DO  - 10.11648/j.ijcocr.20200502.13
T2  - International Journal of Clinical Oncology and Cancer Research
JF  - International Journal of Clinical Oncology and Cancer Research
JO  - International Journal of Clinical Oncology and Cancer Research
SP  - 29
EP  - 33
PB  - Science Publishing Group
SN  - 2578-9511
UR  - https://doi.org/10.11648/j.ijcocr.20200502.13
AB  - A robust method for voxel by voxel enhancement of Cone-beam CT (CBCT) images using a priori knowledge from the planning Computed Tomography (pCT) scan has been developed and used to evaluate the dosimetric accuracy of pCT based CBCT correction method for SBRT dose verification in lung metastasis. This is a retrospective study under which SBRT is carried out in 10 patients presented with lung metastasis. pCT images of patients were acquired and treatment planning was carried out on Varian Eclipse (V11) for 30 Gy in 5 fractions. Daily imaging using CBCT has been done for each patient with an On-Board Imaging system. CBCT is corrected using Matlab function considering CT as fixed and CBCT as moving, the images are registered. Planning target volume (PTV), lung, heart and spine were recontoured on uncorrected CBCT and corrected CBCT separately and the calculated plan on CT is recalculated on both the CBCTs. The dose distribution between the pCT and both the CBCT images were compared. A paired sample test was performed to test the variations. The distribution of pixel intensity of corrected CBCT is closer to the pCT than the uncorrected CBCT. The maximum percentage difference between the corrected CBCT and pCT is 1% in PTV evaluation, which is 3.5% between uncorrected CBCT and pCT. The method increases the accuracy of CBCT density values and enabling the use of CBCT images for dose calculation in radiotherapy.
VL  - 5
IS  - 2
ER  -

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