ws04 vmat treatments verification with iba matrixx detector and op-imrt
TRANSCRIPT
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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4º Congresso da Sociedade Portuguesade Radioterapia Oncologia
WITH IBA MATRIXX DETECTOR AND OP’IMRT
Servicio Radiofísica. Hospital Universitario Virgen Rocío. Sevilla.
Depto. Fisiología Médica y Biofísica. Universidad de Sevilla.
España.
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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CONTENT
•• Introduction Introduction
•• Verification Verification with with Matrixx and OP’IMRT Matrixx and OP’IMRT
•• Initial Initial operations operations
•• Normal Normal workflow workflow
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INTRODUCTION:
MATRIXX DETECTOR
4.5 mm
Air-vented pixel ionization
chambers: φφφφ=4.5 mm, d=5 mm,
V=0.07 cm³
Fast readout down to 20 msec
7.62 mm
5 mm
Active area 24 cm x 24 cm
Spatial resolution: 7.62 x 7.62 mm
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M MatriXX Detector
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Verification with Matrixx and OP’IMRT
VERIFICATION WORKFLOW
INITIAL OPERATIONS
• reatment p an es gn n
• Plan export and recalculation inthe Phantom Matrixx+Multicube.
Planar dose calculation.• Detector and Multicube setup
• Scanning of Matrixx inCT
• Matrixx calibration
• Directional sensitivity
correction
phantom
• Analysis of results : TPS vs Meas.
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Verification with Matrixx and OP’IMRT Initial Operations 1: Scanning of Matrixx in CT
Scan matrixx position,
identical to the treatment
Verification
Images to TPS
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Verification with Matrixx and OP’IMRT Initial Operations 1: Scanning of Matrixx in CT
Matrixx
and
u cu eTC images
acquired
Definition
of a QA
Phantom in
TPS
O
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Verification with Matrixx and OP’IMRT Initial Operations 2: Matrixx Calibration
Dij = (M-B)ij ·NDW(60Co) · Kuni ij · Koff i,j · k pT · k User
Measurement
Bacground
Calibration factor andUniformity: (Production site)
Off-axis Calib factor
P,T correction
Detector factor
Dij = Absolute dose in chamber/pixel “ij”
V ifi i i h M i d OP’IMRT
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Verification with Matrixx and OP’IMRT Initial Operations 2: Matrixx c alibration
KuserIrradiate with 10x10 cm field, with known dose at chambers plane
V ifi ti ith M t i d OP’IMRT
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Verification with Matrixx and OP’IMRT Initial Operations 2: Matrixx Calibration
V ifi ti ith M t i d OP’IMRT
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Verification with Matrixx and OP’IMRT Initial Operations 2: Matrixx Calibration
Koff-axis calibration factor
Irradiate with field 27x27, 100 mu
V ifi ti ith M t i d OP’IMRT
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Verification with Matrixx and OP’IMRT Initial Operations 2: Matrixx Calibration
Koff-axis calibration factor
Verification with Matrixx and OP’IMRT
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Verification with Matrixx and OP IMRT Initial Operations 3: Angular dependence correction
•Irradiate from -90º to +90º gantry angle CW :
•Interval 5º -90º to -5º and + 5º to + 90º
•Interval 1º -5º to + 5º•Field: 10x10 cm
•MU = 100
•Compare TPS isocenter dose with average
dose measured in 4 central pixels
Verification with Matrixx and OP’IMRT
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Verification with Matrixx and OP’IMRT Initial Operations 3: Angular dependence correction
Verification with Matrixx and OP’IMRT
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Verification with Matrixx and OP IMRT Initial Operations 3: Angular dependence correction
Verification with Matrixx and OP’IMRT
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Verification with Matrixx and OP IMRT Initial Operations 3: Angular dependence correction
Angular correction factor
Nij = Dmeas
(0)/ Dref
(0) ij =
Generate a table with Cij in csv format and
import it to OP’IMRT
Verification with Matrixx and OP’IMRT
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Verification with Matrixx and OP IMRT WORKFLOW
a. Clinical VMAT plan design in TPS
b. Plan export and recalculation in thePhantom Matrixx+Multicube
c. Detector and Multicube setupd. Treatment verification with OP’MRT
Verification with Matrixx and OP’IMRT
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Verification with Matrixx and OP IMRT Plan export and recalculation in the Phantom Matrixx+Multicube (1-5)
Verification with Matrixx and OP’IMRT
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Verification with Matrixx and OP IMRT Plan export and recalculation in the Phantom Matrixx+Multicube (3-5)
Verification with Matrixx and OP’IMRT
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Verification with Matrixx and OP IMRT Plan export and recalculation in the Phantom Matrixx+Multicube (4-5)
1. Verification with Matrixx and OP’IMRT
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1. Verification with Matrixx and OP IMRT Plan export and recalculation in the Phantom Matrixx+Multicube (5-5)
Verification with Matrixx and OP’IMRT
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Verification with Matrixx and OP IMRT WORKFLOW
a. Clinical plan design in TPS
b. Plan export and recalculation in thePhantom Matrixx+Multicube
c. Detector and Multicube setupd. Treatment verification with OP’MRT
Verification with Matrixx and OP’IMRT
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Verification with Matrixx and OP IMRT Detector and Multicube setup (1-4)
no
yes
Verification with Matrixx and OP’IMRT
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Verification with Matrixx and OP IMRT Detector and Multicube setup (2-4)
Align lasers
with marks inMCube
Verification with Matrixx and OP’IMRT
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Verification with Matrixx and OP IMRT Detector and Multicube setup (3-4)
1. Sensor angle calibration• Gantry 0º
• Gantry 90º
2. Matrixx Preirradiation:
• Field 27 x 27 cm• 600 MU 10 Gy
• antry at 0• Mode: “online”, 500 ms
3. Background substraction
Verification with Matrixx and OP’IMRT
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Verification with Matrixx and OP IMRT Matrixx preirradiation (4-4)
Verification with Matrixx and OP’IMRT
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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WORKFLOW
a. Clinical plan design in TPS
b. Plan recalculation and export to Phamtom(Matrixx+Multicube) and Mosaiq
c. Detector and Multicube setupd. Treatment verification with OP’MRT
Verification with Matrixx and OP’IMRT
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Treatment verification with OP’MRT (1-12)
Parameters selection:
Meas. Mode: MOVIE
Samp. Time: 300 ms
Nºimages: 1000
Verification with Matrixx and OP’IMRT
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Treatment verification with OP’MRT (1-13)
Verification with Matrixx and OP’IMRT
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Treatment verification with OP’MRT (2-13)
Verification with Matrixx and OP’IMRT
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Treatment verification with OP’MRT (3-13)
Verification with Matrixx and OP’IMRT
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Verification with Matrixx and OP IMRT Treatment verification with OP’MRT (4-13)
Verification with Matrixx and OP’IMRT
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Treatment verification with OP’MRT (5-13)
Verification with Matrixx and OP’IMRT
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Treatment verification with OP’MRT (6-13)
Measurements7.62 1 mm resol
Verification with Matrixx and OP’IMRT T ifi i i h OP’MRT (7 13)
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Treatment verification with OP’MRT (7-13)
Verification with Matrixx and OP’IMRT T t t ifi ti ith OP’MRT (8 13)
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Treatment verification with OP’MRT (8-13)
Verification with Matrixx and OP’IMRT T t t ifi ti ith OP’MRT (9 13)
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Treatment verification with OP’MRT (9-13)
Verification with Matrixx and OP’IMRT
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Treatment verification with OP’MRT (10-13)
Measurements
TPS Planar dose Gamma
3% / 3mm
Verification with Matrixx and OP’IMRT
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Treatment verification with OP’MRT (11-13)
Verification with Matrixx and OP’IMRT f O R
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Treatment verification with OP’MRT (12-13)
Verification with Matrixx and OP’IMRT T ifi i i h OP’MRT (13 13)
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Treatment verification with OP’MRT (13-13)
If regions with out of tolerance gamma levels:
- Are there in PTV, OAR’s or other places?- Have that regions infra or over doses?
Can the linac execute the VMAT treatment asordered by the TPS?
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Moito obrigado
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4º Congressoda Sociedade Portuguesa
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gde Radioterapia Oncologia
WITH
IBA MATRIXX DETECTOR and COMPASS
Juan Carlos Mateos
Servicio Radiofísica.HU Virgen Rocío.
n vers a e ev a.
CONTENT
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CONTENT
1. Introduction: Verification methods
2. Plan export TPS to Mosaiq and OP’IMRT orCOMPASS
3. Comisionado detector4. Información suministrada por el sistema
5. Análisis de la información
COMPASS- the total concept
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Transmission Detector Beam model Dose engine
DetectorDetector
ComissioningComissioning
BeamBeam
ComissioningComissioning
LINAC QALINAC QA MLC QAMLC QA Online SurvOnline Surv2D Plan eval2D Plan eval
Dose trackingDose tracking
Patient 3D dosPatient 3D dos
Plan adaptationPlan adaptation
Workflow
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Verify, visualize, validate
2. Colocación del MatriXX
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Sensor de ángulos
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Sensor de ángulos
3. Exportación del plan a Mosaiq y Compass
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Compass
Para exportar: FILE→ Export→ Dicom (en Pinnacle)
− ,
seleccionar RT Plans completo (Pinnacle)
Destination: IMPAC_DCM_SCP
− A Compass,
se ecc onar, ans, tructure, ose y
images (Pinnacle) Destination: COMPASS
Ojo: conectar cable de red a PC, activar Compass y pulsar
en Patient 3D Dosimetry→ Importar
4 Comisionado del detector
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4. Comisionado del detector
Calentar acelerador,
− Modo servicio, 27x27 cm, 200 um, 120 um/min
Conectar MatriXX a PC
Seguir instrucciones para verificar rotación,offsetts y dosis absoluta (100 um, campo 10x10)
na , pu sar en cono rat n→ com s onar
el detector
4 Comisionado del detector
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4. Comisionado del detector
Medir Background y Pre-irradiar
Irradiar el MatriXX con tres campos,(10, 15 y 20cm), con 50 um a 500 um/min
Colocar dos láminas de agua sólida de 1 cm Seguir instrucciones para verificar rotación,
,
Al final, pulsar en icono BD ratón→ comisionar
el detector
4. Comisionado del detector
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4. Comisionado del detector
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4. Comisionado del detector
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4. Comisionado del detector
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4. Comisionado del detector
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4. Comisionado del detector
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5. Información suministrada (respuesta)
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( p )
Respuestade las cámaras
Measured response
Datos-máquina
+
Modelo Pinnacle
Predicted response
5. Información suministrada (dosis)
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Datos-Máquina
+
TPS Dose
Datos-Máquina
+Modelo Compass
Computed Dose
espues a e ec or
+Modelo Compass
Indirectly Measured Dose
5. Información suministrada (otras herramientas)
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Histo ramas Dosis Volumen
Análisis Gamma TPS vs Indirectly Measured Dose
Diferencias de dosis TPS vs Indirectly Measured Dose
Diferencias de dosis TPS vs Computed Dose
Análisis Gamma TPS vs Computed Dose
6. Análisis de la información Medida de la respuesta
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6. Análisis de la información Medida de la respuesta
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6. Análisis de la información 2D Diferencia Dosis Pinnacle e Indirecta
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6. Análisis de la información 2D Gamma Pinnacle-Dosis Indirecta
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6. Análisis de la información 3D Dosis Pinnacle
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6. Análisis de la información 3D Dosis Indirecta
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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6. Análisis de la información 3D Diferencia Pinnacle-Dosis Indirecta
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6. Análisis de la información 3D Gamma Pinnacle-Dosis Indirecta
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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6. Análisis de la información Estadística e HDV Pinnacle y Dosis Indirecta
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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6. Análisis de la información 2D Diferencia Dosis Pinnacle y Computed Dose
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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6. Análisis de la información 2D Gamma Dosis Pinnacle y Computed Dose
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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6. Análisis de la información 3D Dosis Pinnacle
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6. Análisis de la información 3D Computed Dose
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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6. Análisis de la información 3D Diferencia Pinnacle y Computed Dose
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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6. Análisis de la información 3D Gamma Pinnacle y Computed Dose
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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6. Análisis de la información Estadística e HDV Pinnacle y Computed Dose
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Reports
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Hoja 1
Reports
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Hoja 2
Reports
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Ho a
Reports
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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Hoja 4
Detector de Transmisión
8/7/2019 WS04 VMAT Treatments Verification with Iba Matrixx Detector and OP-IMRT
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