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Lopez P, Belgacem A, Sarnacki S, Arnaud A, Houari J, Piguet C, Baudouin M, Fourcade L, Lauvray T, Ballouhey Q. Enhancing surgical planning for abdominal tumors in children through advanced 3D visualization techniques: a systematic review of future prospects. Front Pediatr 2024; 12:1386280. [PMID: 38863523 PMCID: PMC11166126 DOI: 10.3389/fped.2024.1386280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 04/26/2024] [Indexed: 06/13/2024] Open
Abstract
Introduction Preoperative three-dimensional (3D) reconstruction using sectional imaging is increasingly used in challenging pediatric cases to aid in surgical planning. Many case series have described various teams' experiences, discussing feasibility and realism, while emphasizing the technological potential for children. Nonetheless, general knowledge on this topic remains limited compared to the broader research landscape. The aim of this review was to explore the current devices and new opportunities provided by preoperative Computed Tomography (CT) scans or Magnetic Resonance Imaging (MRI). Methods A systematic review was conducted to screen pediatric cases of abdominal and pelvic tumors with preoperative 3D reconstruction published between 2000 and 2023. Discussion Surgical planning was facilitated through virtual reconstruction or 3D printing. Virtual reconstruction of complex tumors enables precise delineation of solid masses, formulation of dissection plans, and suggests dedicated vessel ligation, optimizing tissue preservation. Vascular mapping is particularly relevant for liver surgery, large neuroblastoma with imaging-defined risk factors (IDRFs), and tumors encasing major vessels, such as complex median retroperitoneal malignant masses. 3D printing can facilitate specific tissue preservation, now accessible with minimally invasive procedures like partial nephrectomy. The latest advancements enable neural plexus reconstruction to guide surgical nerve sparing, for example, hypogastric nerve modelling, typically adjacent to large pelvic tumors. New insights will soon incorporate nerve plexus images into anatomical segmentation reconstructions, facilitated by non-irradiating imaging modalities like MRI. Conclusion Although not yet published in pediatric surgical procedures, the next anticipated advancement is augmented reality, enhancing real-time intraoperative guidance: the surgeon will use a robotic console overlaying functional and anatomical data onto a magnified surgical field, enhancing robotic precision in confined spaces.
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Affiliation(s)
- Pauline Lopez
- Service de Chirurgie Viscérale Pédiatrique, Hôpital des Enfants, Limoges Cedex, France
| | - Alexis Belgacem
- Service de Chirurgie Viscérale Pédiatrique, Hôpital des Enfants, Limoges Cedex, France
| | - Sabine Sarnacki
- Service de Chirurgie Pédiatrique Viscérale, Urologique et Transplantation, Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris, France
| | - Alexis Arnaud
- Service de Chirurgie Pédiatrique, CHU Rennes, Institut NuMeCan, INRAe, INSERM, Univ Rennes, Rennes, France
| | - Jenna Houari
- Service de Chirurgie Viscérale Pédiatrique, Hôpital des Enfants, Limoges Cedex, France
| | - Christophe Piguet
- Service d’Oncologie Pédiatrique, Hôpital des Enfants, Limoges Cedex, France
| | - Maxime Baudouin
- Service de Radiologie Pédiatrique, Hôpital des Enfants, Limoges Cedex, France
| | - Laurent Fourcade
- Service de Chirurgie Viscérale Pédiatrique, Hôpital des Enfants, Limoges Cedex, France
| | - Thomas Lauvray
- Service d’Oncologie Pédiatrique, Hôpital des Enfants, Limoges Cedex, France
| | - Quentin Ballouhey
- Service de Chirurgie Viscérale Pédiatrique, Hôpital des Enfants, Limoges Cedex, France
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Mruma RM, Dharsee N, Malichewe CV, Kisukari JD, Yoram F, Myanza HS, Meena SS, Soko GF. Performance of an offline systematic error correction strategy in pediatric patients receiving adjuvant conformal radiotherapy for Wilm's tumor. PLoS One 2024; 19:e0297997. [PMID: 38363756 PMCID: PMC10871473 DOI: 10.1371/journal.pone.0297997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 01/16/2024] [Indexed: 02/18/2024] Open
Abstract
BACKGROUND Radiotherapy plays a key role as an adjuvant treatment in pediatric Wilm's tumor, improving both survival and quality of life. The success of radiotherapy depends on the precise delivery of radiation dose to the tumor while sparing radiosensitive structures in the vicinity of the tumor. Pediatric patients pose unique challenges in achieving accurate radiotherapy delivery due to their inability to understand instructions and the high radiosensitivity of their tissues. Thus, it is important to determine the optimum geometric verification strategy that will ensure accurate delivery of the prescribed target as specified in the patient's treatment plan. PURPOSE To evaluate the performance of an offline geometric correction strategy in ensuring accuracy and reproducibility during radiotherapy delivery in Wilm's tumor patients. MATERIAL AND METHODS The extended no-action level offline correction strategy was applied in the radiotherapy delivery of 45 Wilm's tumor patients. Gross errors from the first three fractions were used to calculate the mean errors which were then applied as offline correction factors. Mean errors among different groups were compared using a two-way analysis of variance (ANOVA) and Dunnett's pairwise comparisons. All statistical analyses and data visualization were performed using GraphPad Prism version 7 (Insight Partners, GraphPad Holdings, LLC). RESULTS A total of 45 patients were included in the study. In all three orthogonal directions, the recorded gross errors were significantly lower after the application of the systematic error corrections. Random errors were significantly larger in the longitudinal direction compared to lateral (mean difference = 0.28, p = 0.036) and vertical directions (mean difference = 0.37 cm, p = 0.003). Patients' age was a significant predictor of random errors whereby the magnitude of random error decreased with increasing age. CONCLUSION This study shows that the offline correction strategy used is effective in ensuring the accuracy of radiotherapy delivery in pediatric Wilm's tumor patients.
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Affiliation(s)
- Rashid Mussa Mruma
- Department of Clinical Oncology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Nazima Dharsee
- Department of Clinical Oncology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
- Ocean Road Cancer Institute, Dar es Salaam, Tanzania
| | - Christina Vallen Malichewe
- Department of Clinical Oncology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Jumaa Dachi Kisukari
- Department of Clinical Oncology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
- Ocean Road Cancer Institute, Dar es Salaam, Tanzania
| | - Furahini Yoram
- Department of Clinical Oncology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | | | | | - Geofrey Filbert Soko
- Department of Clinical Oncology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
- Ocean Road Cancer Institute, Dar es Salaam, Tanzania
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McAleer MF, Melchior P, Parkes J, Pater L, Rübe C, Saunders D, Paulino AC, Janssens GO, Kalapurakal J. Harmonica consensus, controversies, and future directions in radiotherapy for pediatric Wilms tumors. Pediatr Blood Cancer 2022; 70 Suppl 2:e30090. [PMID: 36482883 DOI: 10.1002/pbc.30090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 10/16/2022] [Accepted: 10/18/2022] [Indexed: 12/13/2022]
Abstract
Radiotherapy (RT) is essential for multimodality treatment of pediatric renal tumors, particularly in higher-risk and metastatic disease. Despite decades of use, particularly for Wilms tumor, there remain controversies regarding RT indications, timing, dose, and targets. To align global management, we address these issues in this international HARMONIsation and CollAboration (HARMONICA) project. There are multiple knowledge gaps and opportunities for future research including: (1) utilization of advanced RT technologies, including intensity-modulated RT, proton beam therapy, combined with image-guided RT to reduce target volumes; (2) impact of molecular biomarkers including loss of heterozygosity at 1p, 16q, and 1q gain on RT indications; (3) mitigation of reproductive toxicity following RT; (4) promotion of RT late effects research; and (5) support to overcome challenges in RT utilization in low- and middle-income countries where 90% of the world's children reside. Here, we outline current status and future directions for RT in pediatric renal tumors.
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Affiliation(s)
- Mary Frances McAleer
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Patrick Melchior
- Department of Radiation Oncology, Saarland University Hospital, Homburg, Germany
| | - Jeannette Parkes
- Department of Radiation Oncology, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa.,Low- and Middle-Income Countries Committee Co-Chair, Paediatric Radiation Oncology Society, Cape Town, South Africa
| | - Luke Pater
- Department of Radiation Oncology, University of Cincinnati, Cincinnati, Ohio, USA
| | - Christian Rübe
- Department of Radiation Oncology, Saarland University Hospital, Homburg, Germany
| | | | - Arnold C Paulino
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Geert O Janssens
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands.,Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - John Kalapurakal
- Department of Radiation Oncology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
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3D-CRT, IMRT and VMAT for flank irradiation due to pediatric Wilms tumor: A comparative planning study with XCAT phantoms. Phys Med 2022; 103:89-97. [DOI: 10.1016/j.ejmp.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/02/2022] [Accepted: 10/07/2022] [Indexed: 11/17/2022] Open
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Pediatric radiotherapy for thoracic and abdominal targets: organ motion, reported margin sizes, and delineation variations – a systematic review. Radiother Oncol 2022; 173:134-145. [DOI: 10.1016/j.radonc.2022.05.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 05/09/2022] [Accepted: 05/26/2022] [Indexed: 11/21/2022]
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J F, A S, V E, F P, P M, B T, Sw W. New aspects and innovations in the local treatment of renal and urogenital pediatric tumors. Semin Pediatr Surg 2021; 30:151081. [PMID: 34412882 DOI: 10.1016/j.sempedsurg.2021.151081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Local treatment plays a key role for patients' outcome in tumors of the urogenital tract in children. Despite a great variety of different etiologies, the specific localization of pediatric urogenital tumors renders several characteristic demands to the treating personnel. Surgery and radiotherapy are the main elements of local treatment in this group of neoplasms. Numerous new guidelines and innovative technical developments of surgery and radiotherapy have recently been integrated into treatment concepts for pediatric urogenital tumors. Due to the broadness of the field it is not possible to give a full overview over all aspects. Therefore, this article highlights the most important innovations and new guidelines of surgery and radiotherapy of pediatric urogenital tumors.
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Affiliation(s)
- Fuchs J
- Department of Pediatric Surgery and Pediatric Urology, University Children´s Hospital Tuebingen, Tuebingen, Germany.
| | - Schmidt A
- Department of Pediatric Surgery and Pediatric Urology, University Children´s Hospital Tuebingen, Tuebingen, Germany
| | - Ellerkamp V
- Department of Pediatric Surgery and Pediatric Urology, University Children´s Hospital Tuebingen, Tuebingen, Germany
| | - Paulsen F
- Department of Radiation Oncology, University Hospital Tuebingen, Tuebingen, Germany
| | - Melchior P
- Department of Radiotherapy and Radiation Oncology, University Hospital, Homburg, Germany
| | - Timmermann B
- Department of Particle Therapy, West German Proton Therapy Centre, University Hospital Essen, Essen, Germany
| | - Warmann Sw
- Department of Pediatric Surgery and Pediatric Urology, University Children´s Hospital Tuebingen, Tuebingen, Germany
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