HIMAC Cancer Treatment by Charged Particles - Carbon Ion...
Transcript of HIMAC Cancer Treatment by Charged Particles - Carbon Ion...
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HIMAC
NIRS
HIMAC
NIRS
Cancer Treatment by Charged Particles
- Carbon Ion Radiotherapy -
HIMAC
NIRS
TTTTakeshiakeshiakeshiakeshi MurakamiMurakamiMurakamiMurakami
Research Center of Charged Particle TherapyResearch Center of Charged Particle TherapyResearch Center of Charged Particle TherapyResearch Center of Charged Particle Therapy
National Institute of Radiological SciencesNational Institute of Radiological SciencesNational Institute of Radiological SciencesNational Institute of Radiological Sciences
2012.11.21
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HIMAC
NIRS
HIMAC
NIRS
Contents
1. Introduction to NIRS 2. Carbon Ion Radiotherapy
1. Why carbon beams?2. Results of clinical trials
3. Outline of HIMAC1. History of HIMAC2. Outline of the facility3. Facilities in the world
4. New Facility1. Why new system?2. Next generation system
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HIMAC
NIRS
HIMAC
NIRS
Site of NIRS
Chiba Prefecture
Narita airport
Tokyo
National Institute of Radiological Sciences
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HIMAC
NIRS
HIMAC
NIRS
Contents
1. Introduction to NIRS 2. Carbon Ion radiotherapy
1. Why carbon beams?2. Results of clinical trials
3. Outline of HIMAC1. History of HIMAC2. Outline of the facility3. Facilities in the world
4. New Facility1. Why new system?2. Next generation system
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HIMAC
NIRS
HIMAC
NIRSFeature of the Charged Particle Therapy
Physics
Dose distributionHeavy ions, Protons
• Surface = small LET• End point = large LET
Dose concentrates at the end point(Bragg peak)
Gamma-ray, Neutrons• from Surface to End point = constant LET
(LET:Lenear Energy Transfer)
0
20
40
60
80
100
0 5 10 15
Depth in water (cm)
Rel
ativ
e do
se (
%)
C ion
n
gamma-ray
proton
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HIMAC
NIRS
HIMAC
NIRS
Dose distribution of xDose distribution of xDose distribution of xDose distribution of x----rays and C beamsrays and C beamsrays and C beamsrays and C beams
tumortumortumortumor tumortumortumortumor
BolusBolusBolusBolus
3 directions3 directions3 directions3 directions
Carbon beamsCarbon beamsCarbon beamsCarbon beamsXXXX----rayrayrayray
9 directions9 directions9 directions9 directions
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HIMAC
NIRS
HIMAC
NIRS
Ionization density and damage of DNA
-2.5
0.0
2.5
20 22 24 26 28 30
X (n
m)
Z (nm)
-2.5
0.0
2.5
0 2 4 6 8 10
X (nm)
Z (nm)
-2.5
0.0
2.5
0 2 4 6 8 10
X (nm)
Z (nm)
DNA
Truck structure Lethal damage
X-rays
Protons
Carbons
1.1
1.0
2~3
RBERBERBERBE
2 nm
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HIMAC
NIRS
HIMAC
NIRS
Result of clinical trials
Head & Neck cancer
(before / treatment planning / after)
before 36 month after
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HIMAC
NIRS
Hypo-fractionation
1 day!
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HIMAC
NIRS
HIMAC
NIRS
Highlight of Carbon Ion Radiotherapy
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HIMAC
NIRS
HIMAC
NIRS
Number of patients, yearly base
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HIMAC
NIRS
HIMAC
NIRSNumber of patients enrolled for carbon ion radiotherapy
from June 1994 to February 2012
neck
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HIMAC
NIRS
HIMAC
NIRS
Details of foreign patients
Russia, 4India, 2
Korea, 10
PRC, 20
Taiwan, 13
Italy, 23
France, 4
Indonesia, 1
Poland, 1
Singapore, 1
USA, 2
Australia, 2
Austria, 2
Britain, 1 Germany, 1
Sweden, 3
Bangladesh, 1
2006-2012
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HIMAC
NIRS
HIMAC
NIRS
Contents
1. Introduction to NIRS 2. Carbon Ion radiotherapy
1. Why carbon beams?2. Results of clinical trials
3. Outline of HIMAC1. History of HIMAC2. Outline of the facility3. Facilities in the world
4. New Facility1. Why new system?2. Next generation system
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HIMAC
NIRS
HIMAC
NIRS
History of constructing HIMAC
Heavy Ion Medical Accelerator in Chiba (HIMAC)Heavy Ion Medical Accelerator in Chiba (HIMAC)Heavy Ion Medical Accelerator in Chiba (HIMAC)Heavy Ion Medical Accelerator in Chiba (HIMAC)
� 1984: 10 years strategy for confronting the cancer1984: 10 years strategy for confronting the cancer1984: 10 years strategy for confronting the cancer1984: 10 years strategy for confronting the cancer
� 1986: International Workshop on Heavy Ion Treatment 1986: International Workshop on Heavy Ion Treatment 1986: International Workshop on Heavy Ion Treatment 1986: International Workshop on Heavy Ion Treatment
FacilityFacilityFacilityFacility
� 1989: Start of the construction1989: Start of the construction1989: Start of the construction1989: Start of the construction
� 1993: Commissioning ended, beams were successfully 1993: Commissioning ended, beams were successfully 1993: Commissioning ended, beams were successfully 1993: Commissioning ended, beams were successfully
accelerated.accelerated.accelerated.accelerated.
� 1994: Clinical Trials began1994: Clinical Trials began1994: Clinical Trials began1994: Clinical Trials began....
� 2003: Advanced Medicine (Advanced Medical Therapy).2003: Advanced Medicine (Advanced Medical Therapy).2003: Advanced Medicine (Advanced Medical Therapy).2003: Advanced Medicine (Advanced Medical Therapy).
� ---- June. 2012: 6,512 patients were treated. (AM 3,488)June. 2012: 6,512 patients were treated. (AM 3,488)June. 2012: 6,512 patients were treated. (AM 3,488)June. 2012: 6,512 patients were treated. (AM 3,488)
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HIMAC
NIRS
HIMAC
NIRS
Devices of HIMAC
HIMACHIMACHIMACHIMAC
(Heavy Ion Medical Accelerator in Chiba)(Heavy Ion Medical Accelerator in Chiba)(Heavy Ion Medical Accelerator in Chiba)(Heavy Ion Medical Accelerator in Chiba)
130m
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HIMAC
NIRS
HIMAC
NIRS
Devices of HIMAC
HIMACHIMACHIMACHIMAC
(Heavy Ion Medical Accelerator in Chiba)(Heavy Ion Medical Accelerator in Chiba)(Heavy Ion Medical Accelerator in Chiba)(Heavy Ion Medical Accelerator in Chiba)
130m
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HIMAC
NIRS
HIMAC
NIRS
Devices of HIMAC
HIMACHIMACHIMACHIMAC
(Heavy Ion Medical Accelerator in Chiba)(Heavy Ion Medical Accelerator in Chiba)(Heavy Ion Medical Accelerator in Chiba)(Heavy Ion Medical Accelerator in Chiba)
130m
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HIMAC
NIRS
HIMAC
NIRS
Beam Delivery System
Wobbling Magnet
Multi Leaf Collimator
Bolus Collimator
Ridge Filter
Range Shifter Cancer Tumor Irradiation area
Scattering material
Controller
Dose monitor
Making of Spread Out Bragg PeakMaking of Spread Out Bragg PeakMaking of Spread Out Bragg PeakMaking of Spread Out Bragg Peak
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HIMAC
NIRS
HIMAC
NIRSIrradiation system of coincident with a patient‘‘‘‘s
respiratory motion
Irradiation room
Positioning area
Accelerator Treatment control
Gate signal generator
Watch & record system
Beam monitor
Planning simulation
Reference Image
Positioning systemusing x-ray TV images
Compare
X-ray TV
Positioning Image
PSD
Respirationwaveform
Gated beam extraction system(RF knockout method)
Interlock system
Ion beam
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HIMAC
NIRS
HIMAC
NIRS
End-expiratory irradiation
Respiration gating for irradiation
Reduction of volumeMinohara et al. IJROBP 47:1097-1103, 2000
No gating Gating
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HIMAC
NIRS
Heavy ion radiotherapy worldwide
Chiba
Gunma
Hyogo
Lanzhou
Busan
Darmstadt
Lyon
Wiener Neustadt
Pavia
Heidelberg
Rochester
KanagawaTosu
Shanghai
Heavy ion Heavy ion (under construction)
ProtonProton (under construction)
Heavy ion (planning)
Penang
Taipei
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HIMAC
NIRS
HIMAC
NIRS
Contents
1. Introduction to NIRS 2. Carbon Ion radiotherapy
1. Why carbon beams?2. Results of clinical trials
3. Outline of HIMAC1. History of HIMAC2. Outline of the facility3. Facilities in the world
4. New Facility1. Why new system?2. Next generation system
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HIMAC
NIRSMotivation of New Treatment
Facility
1 day!
1 day treatment is possible ⇒⇒⇒⇒ Adaptive Cancer Treatment
diagnosis and treatment in a short period
Prepare the treatment planning, and bolus, collimator-> 4-5 days are necessary for machining, transport, inspection
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HIMAC
NIRS
scatterer
Patient collimatorBolusRidge filter
Broad beam
Scanning
Wobbling
magnets
Scanning
magnets
range shifter
Irradiation Methods
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HIMAC
NIRS
Comparison of scanning and broad beam method
Broad beam: matured
technology!
Scanning Broad beam
Dose distribution excellent goodMoving target No Yes
Irradiation time long shortDose control Elaborate Easy
Bolus, collimator No YesBeam position < 0.2mm ~ 2 mm
Beam size Control No controlIntensity Low High
� Long treatment time� Sensitive to the device error� Not for moving target
scanningNew scanning system must be developed.
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HIMAC
NIRS
100 120 140 160 180 200
-40
-20
0
20
40
Non-gatingGating
Gating with rescanning
(8 times)
100 120 140 160 180 200
-40
-20
0
20
40
100 120 140 160 180 200
-40
-20
0
20
40
0
0.1
0.2
0.3
0.4
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.1
Motion:7mm in gate
Simulation of moving tumor irradiation
Irradiation on Moving Tumors
In order to avoid hot/cold spot due to target motion, we decided to employ “gating method” with rescanning.
Example:Φ40mmspherical target
( )φφφφππππ −⋅−= stts 2,3/cos3.317.1)( 4
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HIMAC
NIRS
HIMAC
NIRS
R&D of Fast Scanning System
New control system
HIMAC SB course
Scanning R&D port
1. Fast scanning system
2. Respiratory motion
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HIMAC
NIRS
Scanning with extended Flat-Top
SMx
SMy
Beam
Syn. BM
Fluorescent screen
plan
1. Treatment planning for fast scanning ⇒⇒⇒⇒ ××××5
2. Modification of acc. operation ⇒⇒⇒⇒ ××××2
3. Fast scanning magnet ⇒⇒⇒⇒ ××××10
We can save the dead time of synchrotron operation.
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HIMAC
NIRS
New Particle Therapy Research Facilities
○3D Scanning with Gating (H&V): 2 rooms○Rotating Gantry : 1 room
Iso-center0 1 2m
SMxQM SMy
Monitors
RGF
RSF
Wall
PRN1 PRN2
9.0 m•3D Scanning
New treatment facility
HIMAC building
Hospital
Research Building for Charged Particle Therapy
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HIMAC
NIRS
HIMAC
NIRS
New Particle Therapy Research Facilities
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HIMAC
NIRS
HIMAC
NIRS
New Particle Therapy Research Facilities 1F
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HIMAC
NIRS
HIMAC
NIRS
New Particle Therapy Research Facilities 1F
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HIMAC
NIRS
HIMAC
NIRS
New Particle Therapy Research Facilities 1F
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HIMAC
NIRS
HIMAC
NIRS
New Particle Therapy Research Facilities B2
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HIMAC
NIRS
New Treatment Couch, Robotic Arm
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HIMAC
NIRS
HIMAC
NIRS
END
ENDENDENDEND