Table 1.
Patient basic characteristics.
Table 2.
Dosimetric comparison between 2D and 3D BT planning for small and big tumors, respectively.
Fig 1.
Isodose curves of 2D and 3D planning in a case with eccentric tumor.
The upper 4 images were made by a 2D point A-based brachytherapy (BT) planning and the lower 4 by a 3D MRI-guided BT planning. 2D, 3D upper left: crosscut view; 2D, 3D upper right: mid-sagittal view; 2D, 3D lower left: coronal view; 2D, 3D lower right: 3D stereo diagram. The red dashed line showed gross tumor volume (GTV), cyan-blue dashed line showed high-risk clinical target volume (HR-CTV), and purple dashed line showed intermediate-risk clinical target volume (IR-CTV). Green, dark green, dark red, orange brown and dark blue area showed bladder, left femur, right femur, intestine, and rectum, respectively.
Table 3.
Dosimetric comparison between 2D vs 3D BT planning for eccentric tumors (n = 15).
Fig 2.
Isodose curves of 2D and 3D planning in a case with tumor invading adjacent tissues.
The upper 4 images were made by a 2D point A-based brachytherapy (BT) planning and the lower 4 by a 3D MRI-guided BT planning. 2D, 3D upper left: crosscut view; 2D, 3D upper right: mid-sagittal view; 2D, 3D lower left: coronal view; 2D, 3D lower right: 3D stereo diagram. The red dashed line showed gross tumor volume (GTV), cyan-blue dashed line showed high-risk clinical target volume (HR-CTV), and purple dashed line showed intermediate-risk clinical target volume (IR-CTV). Green, dark green, dark red, orange brown and dark blue area showed bladder, left femur, right femur, intestine, and rectum respectively.
Table 4.
Dosimetric comparison between 2D vs 3D BT planning for tumors invading adjacent tissues (n = 7).