Simultaneous CBCT Acquisition During Arc Radiotherapy (SCART)
Simultaneous Cone Beam Computed Tomography (CBCT) Acquisition During Arc Radiotherapy
The cone beam image is a part of the radiotherapy treatment machine and uses lower energy xrays as the head of the radiotherapy machine moves around the patient in a circle. This takes pictures that give 3-dimensional information, somewhat like a CT scan. These images are better at showing the position of the tumour and surrounding soft tissues than the standard xrays that were previously used. Cone Beam Imaging Technology is not new and has been used regularly at The Christie for many years. The standard cone beam scan is taken before the actual radiotherapy treatment or after the treatment has been delivered.
Volumetric Modulated Arc Therapy (VMAT or Arc Radiotherapy) is a novel method of delivering radiotherapy that involves the continuous movement of the radiotherapy treatment machine head around the patient and MLC during radiation. Arc radiotherapy has been clinically implemented at The Christie for prostate radiotherapy treatments and work is in progress for implementation in lung radiotherapy. The continuous gantry rotation inherent to VMAT delivery makes this simultaneous imaging possible, although there are concerns associated with the impact that this may have on patient dose and image quality.
The aim of this research is to assess whether the image quality of cone beam scans taken during treatment are as good as standard cone beam scans taken before or after treatment used to determine the accuracy of patient position and the tumour coverage by radiotherapy.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Undersøgelsestype
Tilmelding (Forventet)
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
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Greater Manchester
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Manchester, Greater Manchester, Det Forenede Kongerige, M20 4BX
- Rekruttering
- The Christie NHS Foundation Trust
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Ledende efterforsker:
- Corinne Faivre-Finn
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Underforsker:
- Ananya Choudhury
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Kontakt:
- Julie Stratford
- Telefonnummer: 0044 (0)161 446 3506
- E-mail: julie.stratford@christie.nhs.uk
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria for prostate cancer patients:
- Patients to be treated with radical RT for prostate cancer
- Patients to be treated with VMAT
- ECOG performance status 0-2
- Patients must be able to receive and understand verbal and written information regarding the study and give written, informed consent
Inclusion Criteria for lung cancer patients:
- A histological or cytological diagnosis of non-small cell lung cancer or small cell lung cancer
- Patients to be treated with radical RT or SBRT
- Patients to be treated with VMAT
- ECOG performance status 0-2
- Patients must be able to receive and understand verbal and written information regarding the study and give written, informed consent
- Female patients must meet one of the following criteria - postmenopausal for a minimum of one year, surgically sterile, not pregnant, confirmed by β-HCG blood test and willing to use adequate contraception during study participation, not breastfeeding
Exclusion Criteria for prostate cancer patients:
- Clinical judgement by the investigator that the patient should not participate in the study
- Patients in clinical trials of new investigational medicinal products or treatment regimens unless there is written, prior agreement that the patient can also consent to this study, and that clinical data can also be used for this study
- Prior radiotherapy or surgery in the pelvis that can make identification of normal anatomy difficult
Exclusion criteria for lung cancer patients:
- Clinical judgement by the investigator that the patient should not participate in the study
- Patients in clinical trials of new investigational medicinal products or treatment regimens unless there is written, prior agreement that the patient can also consent to this study, and that clinical data can also be used for this study
- Prior radiotherapy or surgery in the region of interest that can make identification of normal anatomy difficult
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
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Eksperimentel: Cone Beam Computed Tomography
Simultaneous Cone Beam Computed Tomography acquisition during arc radiotherapy.
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Simultaneous Cone Beam Computed Tomography acquisition during arc radiotherapy
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Equivalence of image quality
Tidsramme: 12 months
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To show equivalence of image quality from simultaneous CBCT acquisition during delivery of arc radiotherapy with that obtained from conventional CBCT acquisition in lung and prostate patients, as assessed by user-questionnaires.
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12 months
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Quantify inter-observer variation
Tidsramme: 12 months
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To quantify inter-observer variation in interpretation of anatomy, as assessed by questionaires.
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12 months
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Quantify inter-observer variation
Tidsramme: 12 months
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To quantify inter-observer variation in delineation of specific structures on CBCT scans.
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12 months
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Quantify impact on treatment times.
Tidsramme: 12 months
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To quantify the impact of simultaneous CBCT scans on treatment times.
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12 months
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Samarbejdspartnere og efterforskere
Sponsor
Efterforskere
- Ledende efterforsker: Ananya Choudhury, The Christie NHS Foundation Trust
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Forventet)
Studieafslutning (Forventet)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 10_RADIO_94
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