TY - JOUR
T1 - A deformable lung tumor tracking method in fluoroscopic video using active shape models
T2 - A feasibility study
AU - Xu, Qianyi
AU - Hamilton, Russell J.
AU - Schowengerdt, Robert A.
AU - Jiang, Steve B.
PY - 2007/9/7
Y1 - 2007/9/7
N2 - A dynamic multi-leaf collimator (DMLC) can be used to track a moving target during radiotherapy. One of the major benefits for DMLC tumor tracking is that, in addition to the compensation for tumor translational motion, DMLC can also change the aperture shape to conform to a deforming tumor projection in the beam's eye view. This paper presents a method that can track a deforming lung tumor in fluoroscopic video using active shape models (ASM) (Cootes et al 1995 Comput. Vis. Image Underst. 61 38-59). The method was evaluated by comparing tracking results against tumor projection contours manually edited by an expert observer. The evaluation shows the feasibility of using this method for precise tracking of lung tumors with deformation, which is important for DMLC-based real-time tumor tracking.
AB - A dynamic multi-leaf collimator (DMLC) can be used to track a moving target during radiotherapy. One of the major benefits for DMLC tumor tracking is that, in addition to the compensation for tumor translational motion, DMLC can also change the aperture shape to conform to a deforming tumor projection in the beam's eye view. This paper presents a method that can track a deforming lung tumor in fluoroscopic video using active shape models (ASM) (Cootes et al 1995 Comput. Vis. Image Underst. 61 38-59). The method was evaluated by comparing tracking results against tumor projection contours manually edited by an expert observer. The evaluation shows the feasibility of using this method for precise tracking of lung tumors with deformation, which is important for DMLC-based real-time tumor tracking.
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U2 - 10.1088/0031-9155/52/17/012
DO - 10.1088/0031-9155/52/17/012
M3 - Article
C2 - 17762086
AN - SCOPUS:36049034651
SN - 0031-9155
VL - 52
SP - 5277
EP - 5293
JO - Physics in medicine and biology
JF - Physics in medicine and biology
IS - 17
ER -