Fig. 5.1 Definitions of target volumes This chapter introduces the automated segmentation approaches for the GTV, the basics of CTV-to-PTV margins, and computational determination of the CTV-to-PTV margin based on…
Fig. 10.1 Illustration of the applications of surface-imaging systems in radiation therapy in the estimation of (a) inter-fractional and (b) intra-fractional setup errors The main advantages of surface-imaging systems are…
Fig. 7.1 Dose distribution with passive scattering carbon-ion radiotherapy (CIRT) (upper panel) and IMRT (lower panel). Yellow arrows show beam fields (With permission from Tsujii et al. 2014) In this…
Fig. 9.1 IGRT workflow. Treatment planning CT; the structures and fiducial point of the treatment planning are included in a reference set of the image registration for in-room imaging. After…
Fig. 13.1 Characteristic of dose distributions in the depth direction in proton therapy and common X-ray therapy Fig. 13.2 Proton therapy system in National Cancer Center Hospital East Japan Proton…
(12.1) where r is the three-dimensional (3D) position vector, D is the dose, T is the total energy released per unit mass (TERMA), and K is the dose deposition kernel…
Fig. 6.1 Conceptual scheme of similar-case-based radiotherapy treatment planning 6.5 Similar-Case-Based Beam Angle Optimization The accuracy and efficiency of beam arrangement determinations could potentially be improved by combining similar-case-based treatment…
Fig. 2.1 Flowchart for a generic CADe scheme for detection of lesions in medical images 2.2.2 Enhancement of Lesions in CADe Among the steps in CADe schemes, thresholding-based methods such…
Fig. 14.1 (a) A pretreatment PET scan of a head and neck cancer case of patient who died from disease after radiotherapy treatment. The head and neck tumor region of…
Fig. 3.1 Schematics of the method for detecting ROIs with clustered microcalcifications in mammograms 3.3.3.2 Filter Bank for Detecting NC and NLC 1. Hessian matrix classifying nodular and linear structures…
