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Dogliotti I, Levis M, Martin A, Bartoncini S, Felicetti F, Cavallin C, Maffini E, Cerrano M, Bruno B, Ricardi U, Giaccone L. Maintain Efficacy and Spare Toxicity: Traditional and New Radiation-Based Conditioning Regimens in Hematopoietic Stem Cell Transplantation. Cancers (Basel) 2024; 16:865. [PMID: 38473227 DOI: 10.3390/cancers16050865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 02/14/2024] [Accepted: 02/19/2024] [Indexed: 03/14/2024] Open
Abstract
Novelty in total body irradiation (TBI) as part of pre-transplant conditioning regimens lacked until recently, despite the developments in the field of allogeneic stem cell transplants. Long-term toxicities have been one of the major concerns associated with TBI in this setting, although the impact of TBI is not so easy to discriminate from that of chemotherapy, especially in the adult population. More recently, lower-intensity TBI and different approaches to irradiation (namely, total marrow irradiation, TMI, and total marrow and lymphoid irradiation, TMLI) were implemented to keep the benefits of irradiation and limit potential harm. TMI/TMLI is an alternative to TBI that delivers more selective irradiation, with healthy tissues being better spared and the control of the radiation dose delivery. In this review, we discussed the potential radiation-associated long-term toxicities and their management, summarized the evidence regarding the current indications of traditional TBI, and focused on the technological advances in radiotherapy that have resulted in the development of TMLI. Finally, considering the most recent published trials, we postulate how the role of radiotherapy in the setting of allografting might change in the future.
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Affiliation(s)
- Irene Dogliotti
- Allogeneic Transplant and Cellular Therapy Unit, Division of Hematology, Department of Oncology, University Hospital A.O.U. "Città della Salute e della Scienza di Torino", University of Torino, 10126 Torino, Italy
- Department of Molecular Biotechnology and Health Sciences, University of Turin, 10126 Torino, Italy
| | - Mario Levis
- Department of Oncology, University of Turin, 10126 Torino, Italy
| | - Aurora Martin
- Allogeneic Transplant and Cellular Therapy Unit, Division of Hematology, Department of Oncology, University Hospital A.O.U. "Città della Salute e della Scienza di Torino", University of Torino, 10126 Torino, Italy
- Department of Molecular Biotechnology and Health Sciences, University of Turin, 10126 Torino, Italy
| | - Sara Bartoncini
- Department of Oncology, University of Turin, 10126 Torino, Italy
| | - Francesco Felicetti
- Division of Oncological Endocrinology, Department of Oncology, University Hospital A.O.U. "Città della Salute e della Scienza di Torino", 10126 Torino, Italy
| | - Chiara Cavallin
- Department of Oncology, University of Turin, 10126 Torino, Italy
| | - Enrico Maffini
- Hematology Institute "Seràgnoli", IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Marco Cerrano
- Division of Hematology, University Hospital A.O.U. "Città della Salute e della Scienza di Torino", 10126 Torino, Italy
| | - Benedetto Bruno
- Allogeneic Transplant and Cellular Therapy Unit, Division of Hematology, Department of Oncology, University Hospital A.O.U. "Città della Salute e della Scienza di Torino", University of Torino, 10126 Torino, Italy
- Department of Molecular Biotechnology and Health Sciences, University of Turin, 10126 Torino, Italy
| | - Umberto Ricardi
- Department of Oncology, University of Turin, 10126 Torino, Italy
| | - Luisa Giaccone
- Allogeneic Transplant and Cellular Therapy Unit, Division of Hematology, Department of Oncology, University Hospital A.O.U. "Città della Salute e della Scienza di Torino", University of Torino, 10126 Torino, Italy
- Department of Molecular Biotechnology and Health Sciences, University of Turin, 10126 Torino, Italy
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Lambri N, Dei D, Hernandez V, Castiglioni I, Clerici E, De Philippis C, Loiacono D, Navarria P, Reggiori G, Rusconi R, Tomatis S, Bramanti S, Scorsetti M, Mancosu P. Evaluation of plan complexity and dosimetric plan quality of total marrow and lymphoid irradiation using volumetric modulated arc therapy. J Appl Clin Med Phys 2023:e13931. [PMID: 37085997 DOI: 10.1002/acm2.13931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 11/23/2022] [Accepted: 01/22/2023] [Indexed: 04/23/2023] Open
Abstract
PURPOSE To assess the impact of the planner's experience and optimization algorithm on the plan quality and complexity of total marrow and lymphoid irradiation (TMLI) delivered by means of volumetric modulated arc therapy (VMAT) over 2010-2022 at our institute. METHODS Eighty-two consecutive TMLI plans were considered. Three complexity indices were computed to characterize the plans in terms of leaf gap size, irregularity of beam apertures, and modulation complexity. Dosimetric points of the target volume (D2%) and organs at risk (OAR) (Dmean) were automatically extracted to combine them with plan complexity and obtain a global quality score (GQS). The analysis was stratified based on the different optimization algorithms used over the years, including a knowledge-based (KB) model. Patient-specific quality assurance (QA) using Portal Dosimetry was performed retrospectively, and the gamma agreement index (GAI) was investigated in conjunction with plan complexity. RESULTS Plan complexity significantly reduced over the years (r = -0.50, p < 0.01). Significant differences in plan complexity and plan dosimetric quality among the different algorithms were observed. Moreover, the KB model allowed to achieve significantly better dosimetric results to the OARs. The plan quality remained similar or even improved during the years and when moving to a newer algorithm, with GQS increasing from 0.019 ± 0.002 to 0.025 ± 0.003 (p < 0.01). The significant correlation between GQS and time (r = 0.33, p = 0.01) indicated that the planner's experience was relevant to improve the plan quality of TMLI plans. Significant correlations between the GAI and the complexity metrics (r = -0.71, p < 0.01) were also found. CONCLUSION Both the planner's experience and algorithm version are crucial to achieve an optimal plan quality in TMLI plans. Thus, the impact of the optimization algorithm should be carefully evaluated when a new algorithm is introduced and in system upgrades. Knowledge-based strategies can be useful to increase standardization and improve plan quality of TMLI treatments.
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Affiliation(s)
- Nicola Lambri
- Medical Physics Unit, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
| | - Damiano Dei
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Victor Hernandez
- Department of Medical Physics, Hospital Universitari Sant Joan de Reus, IISPV, Tarragona, Catalonia, Spain
| | - Isabella Castiglioni
- Department of Physics "G. Occhialini", University of Milan-Bicocca, Milano, Italy
| | - Elena Clerici
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Chiara De Philippis
- Bone Marrow Transplantation Unit, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Daniele Loiacono
- Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Milan, Italy
| | - Pierina Navarria
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Giacomo Reggiori
- Medical Physics Unit, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
| | - Roberto Rusconi
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
- IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Stefano Tomatis
- Medical Physics Unit, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Stefania Bramanti
- Bone Marrow Transplantation Unit, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Marta Scorsetti
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
- Radiotherapy and Radiosurgery Department, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Pietro Mancosu
- Medical Physics Unit, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
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