TH-D-AUD-03: Accuracy Assessment of An Optic-Guided Target Localization System for Non-Invasive Intra-Cranial SRS Using CBCT-Based 3D/3D Match

2007 ◽  
Vol 34 (6Part23) ◽  
pp. 2641-2641
Author(s):  
Y Yang ◽  
W Fu ◽  
F Li ◽  
X Li ◽  
D Heron ◽  
...  
Keyword(s):  
Accuracy Assessment ◽  
Target Localization ◽  
Localization System ◽  
Non Invasive

A Non-invasive Real-time Localization System for Enhanced Efficacy in Nasogastric Intubation

2015 ◽  
Vol 43 (12) ◽  
pp. 2941-2952 ◽  
Author(s):  
Zhenglong Sun ◽  
Shaohui Foong ◽  
Luc Maréchal ◽  
U-Xuan Tan ◽  
Tee Hui Teo ◽  
...  
Keyword(s):  
Real Time ◽  
Localization System ◽  
Nasogastric Intubation ◽  
Non Invasive

SU-FF-T-75: Accuracy Assessment of a Non-Invasive Image Guided System for Intra-Cranial Linac Based Stereotactic Radiosurgery

2006 ◽  
Vol 33 (6Part7) ◽  
pp. 2066-2066 ◽  
Author(s):  
F Hacker ◽  
F Rosca ◽  
S Friesen ◽  
P Zygmanski ◽  
N Ramakrishna
Keyword(s):  
Stereotactic Radiosurgery ◽  
Accuracy Assessment ◽  
Non Invasive ◽  
Image Guided

INTRODUCING SITETRACK

Neurosurgery ◽  
2009 ◽  
Vol 64 (suppl_2) ◽  
pp. A110-A122 ◽  
Author(s):  
Kenichi Saito ◽  
Masami Fujii ◽  
Koji Kajiwara ◽  
Michiyasu Suzuki
Keyword(s):  
Regression Analysis ◽  
Stereotactic Radiotherapy ◽  
Head Movement ◽  
Target Localization ◽  
Mean Square ◽  
Localization System ◽  
System Parameters ◽  
Thermoplastic Mask ◽  
Emergency Stop ◽  
The Moment

Abstract OBJECTIVE Immobilization of the head during stereotactic radiotherapy (STR) has, until recently, been fundamental for ensuring accuracy. We developed a continuous motion monitoring system (SiteTrack) to detect and quantify head movement during CyberKnife (Accuray, Inc., Sunnyvale, CA) STR and Leksell (Elekta AB, Stockholm, Sweden) frame fixation. In this study, we present findings obtained during tests of SiteTrack. METHODS SiteTrack is composed of a potentiometer with 4 encoders connected through 4 threads tied to the plastic buttons attached to the thermoplastic mask, in the case of CyberKnife, or by 3 threads directly connected to the Leksell frame. The accuracy of SiteTrack was studied with a phantom using the target localization system of the CyberKnife. During CyberKnife treatment, SiteTrack software sends an emergency stop signal (E-stop) if the patient moves beyond a limit. Seventy-three cases of CyberKnife STR and 7 cases of Leksell frame fixation were monitored. RESULTS In the phantom study, regression analysis showed a significant correlation between SiteTrack and target localization system parameters. The expected root mean square position error at the moment of E-stop was 0.62 ± 0.44 mm when the E-stop limit was set at ±0.5 mm. Twenty-two (30%) of 73 patients kept still during CyberKnife treatment (<0.5 mm); 51 (70%) of 73 patients moved more than 0.5 mm and, thus, caused E-stops. SiteTrack monitoring during frame fixation showed motion beyond ±1 mm in 4 cases and ±0.5 mm in 3 other cases. CONCLUSION Significant head movement can occur during CyberKnife treatment or fixation with a Leksell frame. SiteTrack may improve the accuracy of the CyberKnife as well as frame-based STR.

Commissioning and quality assurance of an optically guided three-dimensional ultrasound target localization system for radiotherapy

2002 ◽  
Vol 29 (8) ◽  
pp. 1781-1788 ◽  
Author(s):  
Wolfgang A. Tomé ◽  
Sanford L. Meeks ◽  
Nigel P. Orton ◽  
Lionel G. Bouchet ◽  
Francis J. Bova
Keyword(s):  
Quality Assurance ◽  
Three Dimensional ◽  
Target Localization ◽  
Localization System
Sign in / Sign up

Export Citation Format

Share Document