Modeling of Brain Shift Phenomenon for Different Craniotomies and Solid Models

Table 5

Comparison of maximum displacement, equivalent strain, effective stress, and principal stress for parietal, posterior, and frontal craniotomies.

Craniotomy	Model	Maximum displacement [mm]	Maximum equivalent strain (%)	Maximum effective stress [Pa]	Maximum principal stress [Pa]
Parietal	Elastic	6.546	102	25145	40670
	hyperelastic Ogden	7.271	38	53286	57168
Posterior	Elastic	10.766	59	14388	32029
	hyperelastic Ogden	12.341	32	38073	41139
Frontal	Elastic	3.830	59	14591	14651
	hyperelastic Ogden	4.177	23	10049	10880