Role of 18F-choline and 18F-fluorodeoxyglucose positron emission tomography in combination with magnetic resonance imaging in brachytherapy planning for locally advanced cervical cancer: A pilot study
Background and purpose: This pilot study aims to describe the advantages of combining metabolic and anatomic imaging modalities in brachytherapy (BT) planning for locally advanced cervical cancer (LACC) and to evaluate the supplementary value of Fluoro(F)-Choline positron emission tomography/compute...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Physics and Imaging in Radiation Oncology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405631623000581 |
| _version_ | 1797691952496377856 |
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| author | Fadoua Rais Karim Boudam Cynthia Ménard Marie-Claude Beauchemin Naoual Oulmoudne Daniel Juneau Antoine Leblond Maroie Barkati |
| author_facet | Fadoua Rais Karim Boudam Cynthia Ménard Marie-Claude Beauchemin Naoual Oulmoudne Daniel Juneau Antoine Leblond Maroie Barkati |
| author_sort | Fadoua Rais |
| collection | DOAJ |
| description | Background and purpose: This pilot study aims to describe the advantages of combining metabolic and anatomic imaging modalities in brachytherapy (BT) planning for locally advanced cervical cancer (LACC) and to evaluate the supplementary value of Fluoro(F)-Choline positron emission tomography/computed tomography (PET/CT) in comparison to 18F-fluorodeoxyglucose (FDG) in this setting. Materials and methods: A prospective cohort of six patients with LACC was included in this study. Each patient underwent BT planning CT scan, magnetic resonance imaging (MRI), and both FDG and F-Choline PET/CT scans on the same day, with BT applicators in place. Patients were treated according to the standard of care. Metabolic target volumes (TV) were generated retrospectively and compared with the anatomic volumes using Dice coefficients and absolute volume comparison. Results: The threshold at which the metabolic and anatomic volumes were the most concordant was found to be 35% maximum standardized uptake value (SUV max) for both PET/CT scans. Amongst the six patients in this cohort, three in the FDG cohort and four in the F-Choline cohort were found to have more than ten percent ratio of excess (increase) in their MRI gross tumor volumes (GTV) when incorporating the metabolic information from the PET/CT scans. However, no significant changes were needed in the high risk-clinical target volumes (CTVHR) for both PET tracers. Conclusions: FDG and F-Choline PET/CT scans can substantially modify the BT GTV on MRI, without affecting the CTVHR. F-Choline is potentially more informative than FDG in assessing residual TV, particularly in cases with significant post-radiation inflammatory changes. |
| first_indexed | 2024-03-12T02:20:47Z |
| format | Article |
| id | doaj.art-0565cb113cf640dba3cba29e7eb704a1 |
| institution | Directory Open Access Journal |
| issn | 2405-6316 |
| language | English |
| last_indexed | 2024-03-12T02:20:47Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics and Imaging in Radiation Oncology |
| spelling | doaj.art-0565cb113cf640dba3cba29e7eb704a12023-09-06T04:52:27ZengElsevierPhysics and Imaging in Radiation Oncology2405-63162023-07-0127100467Role of 18F-choline and 18F-fluorodeoxyglucose positron emission tomography in combination with magnetic resonance imaging in brachytherapy planning for locally advanced cervical cancer: A pilot studyFadoua Rais0Karim Boudam1Cynthia Ménard2Marie-Claude Beauchemin3Naoual Oulmoudne4Daniel Juneau5Antoine Leblond6Maroie Barkati7Department of Radiation Oncology, Centre Hospitalier de l'Université de Montréal (CHUM), 1000 St-Denis, Montreal, Québec H2X 0C1, CanadaDepartment of Radiation Oncology, Centre Hospitalier de l'Université de Montréal (CHUM), 1000 St-Denis, Montreal, Québec H2X 0C1, CanadaDepartment of Radiation Oncology, Centre Hospitalier de l'Université de Montréal (CHUM), 1000 St-Denis, Montreal, Québec H2X 0C1, CanadaDepartment of Radiation Oncology, Centre Hospitalier de l'Université de Montréal (CHUM), 1000 St-Denis, Montreal, Québec H2X 0C1, CanadaDepartment of Radiation Oncology, Centre hospitalier affilié universitaire régional (CHAUR), 1991 boul. du Carmel, Trois-Rivières, Québec G8Z 3R9, CanadaDepartment of Nuclear Medicine, Centre Hospitalier de l'Université de Montréal (CHUM), 1000 St-Denis, Montreal, Québec H2X 0C1, CanadaDepartment of Nuclear Medicine, Centre hospitalier affilié universitaire régional (CHAUR), 1991 boul. du Carmel, Trois-Rivières, Québec G8Z 3R9, CanadaDepartment of Radiation Oncology, Centre Hospitalier de l'Université de Montréal (CHUM), 1000 St-Denis, Montreal, Québec H2X 0C1, Canada; Corresponding author at: Centre Hospitalier de l'Université de Montréal (CHUM), 1000 St-Denis. Radiation Oncology, Pavilion C, door C.S3.5002, Montreal, Québec H2X 0C1, Canada.Background and purpose: This pilot study aims to describe the advantages of combining metabolic and anatomic imaging modalities in brachytherapy (BT) planning for locally advanced cervical cancer (LACC) and to evaluate the supplementary value of Fluoro(F)-Choline positron emission tomography/computed tomography (PET/CT) in comparison to 18F-fluorodeoxyglucose (FDG) in this setting. Materials and methods: A prospective cohort of six patients with LACC was included in this study. Each patient underwent BT planning CT scan, magnetic resonance imaging (MRI), and both FDG and F-Choline PET/CT scans on the same day, with BT applicators in place. Patients were treated according to the standard of care. Metabolic target volumes (TV) were generated retrospectively and compared with the anatomic volumes using Dice coefficients and absolute volume comparison. Results: The threshold at which the metabolic and anatomic volumes were the most concordant was found to be 35% maximum standardized uptake value (SUV max) for both PET/CT scans. Amongst the six patients in this cohort, three in the FDG cohort and four in the F-Choline cohort were found to have more than ten percent ratio of excess (increase) in their MRI gross tumor volumes (GTV) when incorporating the metabolic information from the PET/CT scans. However, no significant changes were needed in the high risk-clinical target volumes (CTVHR) for both PET tracers. Conclusions: FDG and F-Choline PET/CT scans can substantially modify the BT GTV on MRI, without affecting the CTVHR. F-Choline is potentially more informative than FDG in assessing residual TV, particularly in cases with significant post-radiation inflammatory changes.http://www.sciencedirect.com/science/article/pii/S240563162300058118F-FDG PET/CT18F-choline PET/CTBrachytherapy planningCervical cancer |
| spellingShingle | Fadoua Rais Karim Boudam Cynthia Ménard Marie-Claude Beauchemin Naoual Oulmoudne Daniel Juneau Antoine Leblond Maroie Barkati Role of 18F-choline and 18F-fluorodeoxyglucose positron emission tomography in combination with magnetic resonance imaging in brachytherapy planning for locally advanced cervical cancer: A pilot study Physics and Imaging in Radiation Oncology 18F-FDG PET/CT 18F-choline PET/CT Brachytherapy planning Cervical cancer |
| title | Role of 18F-choline and 18F-fluorodeoxyglucose positron emission tomography in combination with magnetic resonance imaging in brachytherapy planning for locally advanced cervical cancer: A pilot study |
| title_full | Role of 18F-choline and 18F-fluorodeoxyglucose positron emission tomography in combination with magnetic resonance imaging in brachytherapy planning for locally advanced cervical cancer: A pilot study |
| title_fullStr | Role of 18F-choline and 18F-fluorodeoxyglucose positron emission tomography in combination with magnetic resonance imaging in brachytherapy planning for locally advanced cervical cancer: A pilot study |
| title_full_unstemmed | Role of 18F-choline and 18F-fluorodeoxyglucose positron emission tomography in combination with magnetic resonance imaging in brachytherapy planning for locally advanced cervical cancer: A pilot study |
| title_short | Role of 18F-choline and 18F-fluorodeoxyglucose positron emission tomography in combination with magnetic resonance imaging in brachytherapy planning for locally advanced cervical cancer: A pilot study |
| title_sort | role of 18f choline and 18f fluorodeoxyglucose positron emission tomography in combination with magnetic resonance imaging in brachytherapy planning for locally advanced cervical cancer a pilot study |
| topic | 18F-FDG PET/CT 18F-choline PET/CT Brachytherapy planning Cervical cancer |
| url | http://www.sciencedirect.com/science/article/pii/S2405631623000581 |
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