scholarly journals Design and validation of a MV / kV imaging‐based markerless tracking system for assessing real‐time lung tumor motion

2018 ◽  
Vol 45 (12) ◽  
pp. 5555-5563 ◽  
Author(s):  
Pengpeng Zhang ◽  
Margie Hunt ◽  
Arina B. Telles ◽  
Hai Pham ◽  
Michael Lovelock ◽  
...  
Keyword(s):  
Real Time ◽  
Lung Tumor ◽  
Tracking System ◽  
Tumor Motion ◽  
Markerless Tracking

Intrafractional Baseline Shift or Drift of Lung Tumor Motion During Gated Radiation Therapy With a Real-Time Tumor-Tracking System

2016 ◽  
Vol 94 (1) ◽  
pp. 172-180 ◽  
Author(s):  
Seishin Takao ◽  
Naoki Miyamoto ◽  
Taeko Matsuura ◽  
Rikiya Onimaru ◽  
Norio Katoh ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Real Time ◽  
Lung Tumor ◽  
Tracking System ◽  
Tumor Motion ◽  
Tumor Tracking ◽  
Baseline Shift

A GPU-based framework for modeling real-time 3D lung tumor conformal dosimetry with subject-specific lung tumor motion

2010 ◽  
Vol 55 (17) ◽  
pp. 5137-5150 ◽  
Author(s):  
Yugang Min ◽  
Anand Santhanam ◽  
Harini Neelakkantan ◽  
Bari H Ruddy ◽  
Sanford L Meeks ◽  
...  
Keyword(s):  
Real Time ◽  
Lung Tumor ◽  
Tumor Motion ◽  
Subject Specific

Lung Tumor Motion Compensation during Real Time Respiratory Tracking using Gold Fiducial Markers

2008 ◽  
Vol 72 (1) ◽  
pp. S464-S465 ◽  
Author(s):  
K. Huang ◽  
S. Hossain ◽  
C. Chuang ◽  
M. Descovich ◽  
A. Gottschalk ◽  
...  
Keyword(s):  
Real Time ◽  
Motion Compensation ◽  
Lung Tumor ◽  
Fiducial Markers ◽  
Tumor Motion ◽  
Respiratory Tracking

Baseline Shift of Intrafractional Lung Tumor Motion in Real-Time Tumor-Tracking Radiation Therapy

2013 ◽  
Vol 87 (2) ◽  
pp. S67
Author(s):  
S. Takao ◽  
N. Miyamoto ◽  
T. Matsuura ◽  
S. Shimizu ◽  
R. Onimaru ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Real Time ◽  
Lung Tumor ◽  
Tumor Motion ◽  
Tumor Tracking ◽  
Baseline Shift

scholarly journals Markerless Lung Tumor Motion Tracking by Dynamic Decomposition of X-Ray Image Intensity

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Noriyasu Homma ◽  
Yoshihiro Takai ◽  
Haruna Endo ◽  
Kei Ichiji ◽  
Yuichiro Narita ◽  
...  
Keyword(s):  
Motion Tracking ◽  
Lung Tumor ◽  
Tumor Motion ◽  
Image Intensity ◽  
X Ray ◽  
Image Guided Radiation Therapy ◽  
Fluoroscopic Image ◽  
Tumor Tracking ◽  
Markerless Tracking ◽  
Ill Posed

We propose a new markerless tracking technique of lung tumor motion by using an X-ray fluoroscopic image sequence for real-time image-guided radiation therapy (IGRT). A core innovation of the new technique is to extract a moving tumor intensity component from the fluoroscopic image intensity. The fluoroscopic intensity is the superimposition of intensity components of all the structures passed through by the X-ray. The tumor can then be extracted by decomposing the fluoroscopic intensity into the tumor intensity component and the others. The decomposition problem for more than two structures is ill posed, but it can be transformed into a well-posed one by temporally accumulating constraints that must be satisfied by the decomposed moving tumor component and the rest of the intensity components. The extracted tumor image can then be used to achieve accurate tumor motion tracking without implanted markers that are widely used in the current tracking techniques. The performance evaluation showed that the extraction error was sufficiently small and the extracted tumor tracking achieved a high and sufficient accuracy less than 1 mm for clinical datasets. These results clearly demonstrate the usefulness of the proposed method for markerless tumor motion tracking.

Dosimetric investigation of lung tumor motion compensation with a robotic respiratory tracking system: An experimental study

2008 ◽  
Vol 35 (4) ◽  
pp. 1232-1240 ◽  
Author(s):  
Elena Nioutsikou ◽  
Yvette Seppenwoolde ◽  
J. Richard N. Symonds-Tayler ◽  
Ben Heijmen ◽  
Phil Evans ◽  
...  
Keyword(s):  
Experimental Study ◽  
Motion Compensation ◽  
Lung Tumor ◽  
Tracking System ◽  
Tumor Motion ◽  
Respiratory Tracking

Speed and amplitude of lung tumor motion precisely detected in four-dimensional setup and in real-time tumor-tracking radiotherapy

2006 ◽  
Vol 64 (4) ◽  
pp. 1229-1236 ◽  
Author(s):  
Hiroki Shirato ◽  
Keishiro Suzuki ◽  
Gregory C. Sharp ◽  
Katsuhisa Fujita ◽  
Rikiya Onimaru ◽  
...  
Keyword(s):  
Real Time ◽  
Lung Tumor ◽  
Tumor Motion ◽  
Tumor Tracking
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