Assessment of imaging studies used with radiosurgery: a volumetric algorithm and an estimation of its error. Technical note

Journal of Neurosurgery
John W SnellL Steiner

Abstract

The Gamma Knife has played an increasingly important role in the neurosurgical treatment of patients. Intracranial lesions are not removed by radiosurgery. Rather, the goal of treatment is to induce tumor control. During planning, the creation of dose-volume histograms requires an accurate volumetric analysis of intracranial lesions selected for radiosurgery. In addition, an accurate follow-up imaging analysis of tumor volume is essential for assessing the results of radiosurgery. Nevertheless, sources of volumetric error and their expected magnitudes must be properly understood so that the operator may correctly interpret apparent changes in tumor volume. In this paper, the authors examine the often-neglected contributions of imaging geometry (principally image slice thickness and separation) to overall volumetric error. One of the fundamental sources of volumetric error is that resulting from the geometry of the acquisition protocol. The authors consider the image sampling geometry of tomographic modalities and its contribution to volumetric error through a simulation framework in which a synthetic digital tumor is taken as the primary model. Because the exact volume of the digital phantom can be computed, the volume estimate...Continue Reading

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Citations

Dec 29, 2013·AJR. American Journal of Roentgenology·Adam N WallaceFranz J Wippold
Sep 30, 2008·Journal of Neurosurgery·Arnaldo Neves Da SilvaJason P Sheehan
Sep 3, 2009·Journal of Neurosurgery·Arnaldo Neves Da SilvaJason P Sheehan
Dec 20, 2011·Journal of Neurosurgery·Robert M StarkeJason P Sheehan
Oct 4, 2011·Journal of Neurosurgery·Mohamed ElsharkawyJason P Sheehan
May 28, 2013·Journal of Neurosurgery·Mohamed Samy Elhammady, Roberto C Heros
Oct 16, 2012·Journal of Neurosurgery. Pediatrics·David WeintraubJason Sheehan
Aug 13, 2013·Journal of Neurosurgery·Jason P SheehanMary Lee Vance
Jul 21, 2007·Journal of Neurosurgery·Chun Po YenLadislau Steiner
Jan 24, 2007·Journal of Neurosurgery·Chun Po YenLadislau Steiner
Jun 5, 2007·Journal of Neurosurgery·Jason SheehanLadislau Steiner
Dec 18, 2013·Journal of Neurosurgery·Seong-Hyun ParkL Dade Lunsford
Jan 11, 2014·Journal of Neurosurgery·Cheng-Chia LeeJason P Sheehan
Nov 22, 2013·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Ye LiBainan Xu
Sep 14, 2014·International Journal of Radiation Oncology, Biology, Physics·Zhiyuan XuJason Sheehan
Apr 16, 2011·World Neurosurgery·Faisal T SayerJason P Sheehan
Jun 27, 2015·Journal of Neurosurgery·Jason P SheehanDavid Schlesinger
Jul 19, 2015·Journal of Neuro-oncology·Daniel M TrifilettiJason P Sheehan
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Jun 14, 2014·Pituitary·Cheng-Chia LeeJason Sheehan
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Dec 4, 2014·Journal of the Chinese Medical Association : JCMA·Wei-Hsin WangCheng-Chia Lee
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Feb 12, 2011·Neurosurgery·Huai-che YangDouglas Kondziolka
Mar 25, 2017·Journal of Neurosurgery·Or Cohen-InbarJason P Sheehan

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