What is Respiratory gated?

?Should we learn more about Respiratory gated?

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More movements develop from

respiration in the lungs, liver, and

heart, located in the chest and

abdominal region, compared to

other typical organs.

Wouldn’t  it  be  difficult  to  keep  aiming  at moving  targets?

If  assessed  based  on  the  entire  movement  range  of  the  organ,  

inevitably,  the  range  of  the  treatment  site  becomes  larger.

This  creates a  problem  where  high  level  of  radiation  is  exposed  to  the  normal  tissues.

At  the  SMC  Proton  Therapy  Center,  the  movement  of  the  organs  from  respiration  are  

assessed  beforehand  through  the  simulation  treatment  planning.

Plan  applied  during  treatment  planning Respiratory  condition  monitoring  during  treatment

Plan  applied  during  treatment  planning

Cancer  site  of  the  treatment  changes  according  to  inhalation  and  exhalation

Tumor  in  a  position  not  influenced   by  

respiration(inhalation)

Tumor  in  a  position  

influenced   by  respiration(exhalation)

Establishing  treatment  plans  according  to  the  respiratory  

conditions

If  respiratory  gated  treatment  is  not  possible,  

the  radiation  assessment  range  becomes  larger.

If  respiratory  gated  treatment  is  possible,

the  radiation  assessment  range  can  be  minimized.

Respiratory  condition  monitoring  during  treatment

SMC Proton 기술 강점 Robotic Couch

The  treatment  plan  is  established  through  the  4 dimensional  special  computer  tomography.

The  radiation  is  assessed  only  during  the  patient’s  stabilized  respiration  period.