確かく認にん写しゃ真しん

noun

portal film; verification image

Technical term in radiotherapy for an image taken to verify patient positioning before treatment.

• 放ほう射しゃ線せん治ち療りょうの前まえに確かく認にん写しゃ真しんを撮さつ影えいします。

  A portal film is taken before radiotherapy.