【daily taste】評論
放射治療物理學(KHAN's The P☆☆☆☆☆☆ ...
【Matt】評論
Khan's the physics of radiation therapy P180This phenomenon has been called the edge effect, or the tissue lateral damage. The problem becomes more severe when larger thicknesses (e.g., ≥20 cm) are treated with one field per day using a lower-energy beam (e.g., ≤6 MV)A. 當體厚較大的病患,>20cm,建議使用高能量>6MV以上,故Energy高,tissue lateral effect越不明顯B. tissue lateral effect是談論生物效應的嚴重性C.正確D.射束入射位置越接近腫瘤,此時類似體厚較薄,故tissue lateral effect影響越小