Study of Target Volume Effect on Efficiency Index and Paddick Conformity Index  for Arteriovenous Malformation Treatment Plans by Gamma Knifey Gamma Knife

Authors

  • Arkan M. Mhal Department of Medical Physics Unit, College of Medicine, University of Baghdad, Baghdad, Iraq. https://orcid.org/0009-0004-5549-579X
  • Nadiya Y. Mohammed Department of Medical Physics unit, College of Medicine, University of Baghdad, Baghdad, Iraq.
  • Moneer K. Faraj Department of Neurosurgery; College of Medicine; University of Baghdad; Baghdad, Iraq. https://orcid.org/0000-0002-4574-5001

DOI:

https://doi.org/10.32007/jfacmedbagdad.2091

Keywords:

conformity, , efficiency index,, plan quality, , radiotherapy, , stereotactic radiosurgery.

Abstract

Background:  Since energy is the product of volume times dosage, volumes are given a weighting that is proportionate to the dose that they have received. This is a result that energy is a measure of how much substance has been absorbed.

Aim of the study: The current study aimed to study the fluctuation of the efficiency index and Paddick with differences in the target volume.

Method The efficiency index and conformance index data were computed for each of the thirty clinical treatments that were scheduled using the Leksell Gamma Knife® Icon™ version (11.1) and compared to the target volume. Data analysis was carried out using the available statistical package for Social Sciences.

Result The value of efficiency index (ƞ50% ) for the 30 clinical stereotactic radiosurgery treatment plans ranged from 44% to 84% with a mean value of 63%.and value of conformity was 47% to 82% with a mean value of 60.6%, The study also showed a strong relationship between target volume and this indexes.

Conclusion:  Volumes are given a weighting that is proportional to the dose that they have absorbed because energy is the product of volume times dose, where there would be a correlation between efficiency and  conformance improvements and an increase in the target volume

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Author Biographies

  • Nadiya Y. Mohammed , Department of Medical Physics unit, College of Medicine, University of Baghdad, Baghdad, Iraq.

     

     

     

     

     

  • Moneer K. Faraj, Department of Neurosurgery; College of Medicine; University of Baghdad; Baghdad, Iraq.

     

     

     

     

References

Germano IM. LINAC and Gamma Knife Radiosurgery. Neurosurgical Topics. 1998;

Arkawazi BMF, al Atraqchi A, Adnan A, Dheyab S. Efficacy of Gamma Knife radiosurgery in the management of pituitary prolactinoma. Surg Neurol Int. 2021;12. https://doi.org/10.25259/SNI_230_2021

Lindquist, C P. The Leksell Gamma Knife Perfexion and comparisons with its predecessors. Neurosurgery. 2007 Sep;61

https://doi.org/10.1227/01.neu.0000289726.35330.8a

Novotny J, Bhatnagar JP, Niranjan A. Dosimetric comparison of the Leksell Gamma Knife Perfexion and 4C. Neurosurg. 2008;

https://doi.org/10.3171/JNS/2008/109/12/S3

Liu H, Andrews DW, Evans JJ, Werner-Wasik M, Yu Y, Dicker AP, et al. Plan quality and treatment efficiency for radiosurgery to multiple brain metastases: Non-coplanar rapid arc vs. Gamma Knife. Front Oncol. 2016;6(FEB).

https://doi.org/10.3389/fonc.2016.00026

Cole A. Giller, Jeffrey A. Fiedler M, Gregory J. Gagnon M, Ian Paddick PMPL WI LBAJW&. SInc, P. RADIOSURGICAL PLANNING. 2009

https://openlibrary.org/books/OL23229941M/Radiosurgical_planning

Jayaraman MV, Marcellus ML DH et al. Hemorrhage rate in patients with Spetzler - Martin grades IV and V arteriovenous malformations: is treatment justified? journal of cerebral circulation. 2007;

https://doi.org/10.1161/01.STR.0000254497.24545.de

Zabel A, Debus J, Schlegel W, Milker -Zabel S. Treatment outcome after linac-based radiosurgery in cerebral arteriovenous malformations. European Society for Therapeutic Radiology and Oncology. 2005;

https://doi.org/10.1016/j.radonc.2005.04.008

Barker FG 2nd,, Butler WE LS et al. Dose-volume prediction of radiation-related complications after proton beam radiosurgery for cerebral arteriovenous malformations. J Neurosurg. 2003;

https://doi.org/10.3171/jns.2003.99.2.0254

Arkawazi BMF, Faraj MK, Al-Attar Z, Hussien HAA. Short-term effectiveness of gamma knife radiosurgery in the management of brain arteriovenous malformation. Open Access Maced J Med Sci. 2019 Oct 15;7(19):3221-4.

https://doi.org/10.3889/oamjms.2019.802

Jean L Nakamura M.D, Lynn J Verhey Ph.D., Vernon Smith Ph.D. Dose conformity of gamma knife radiosurgery and risk factors for complications. International Journal of Radiation Oncology Biology Physics. 2001;

https://doi.org/10.1016/S0360-3016(01)01757-6

Hossam Donya1 , Sheikh Othman, 1 Alexis Dimitriadis3. Evaluating and predicting the Efficiency Index for Stereotactic Radiosurgery Plans using RapidMiner GO(JAVA) Based Artificial Intelligence Algorithms. 2020. https://doi.org/10.48550/arXiv.2201.07718

Sharika Venugopal Menon RPSBRKN. Evaluation of Plan Quality Metrics in Stereotactic Radiosurgery/Radiotherapy in the Treatment Plans of Arteriovenous Malformations. J Med Phys. 2018. https://doi.org/10.4103/jmp.jmp_25_18

Ian Paddick, Bodo Lippitz. A simple dose gradient measurement tool to complement the conformity index. Journal of Neurosurgery. 2006. https://doi.org/10.3171/sup.2006.105.7.194

Wu QR WBEDMJKEKTJ. Quality of coverage: conformity measures for stereotactic radiosurgery. J Appl Clin Med Phys. 2003 Oct;12.

https://doi.org/10.1120/1.1621372

Julia Stanley 1a Karen Breitman, 1 Peter Dunscombe, 1 David P. Spencer, 1 Harold Lau2. Evaluation of stereotactic radiosurgery conformity indices for 170 target volumes in patients with brain metastases. J Appl Clin Med Phys. 2011

https://doi.org/10.1120/jacmp.v12i2.3449

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Published

01.07.2023

How to Cite

1.
Mhal AM, Mohammed NY, Faraj MK. Study of Target Volume Effect on Efficiency Index and Paddick Conformity Index  for Arteriovenous Malformation Treatment Plans by Gamma Knifey Gamma Knife. J Fac Med Baghdad [Internet]. 2023 Jul. 1 [cited 2024 Nov. 21];65(2):141-5. Available from: https://iqjmc.uobaghdad.edu.iq/index.php/19JFacMedBaghdad36/article/view/2091

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