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Jacques J, Renard S, Demogeot N, Faivre JC, Peiffert D. Hypofractionated radiotherapy for invasive squamous cell carcinoma of the scalp in the elderly: Efficacy and tolerance, preliminary results. Cancer Radiother 2023:S1278-3218(23)00063-X. [PMID: 37179219 DOI: 10.1016/j.canrad.2023.01.003] [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: 11/29/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 05/15/2023]
Abstract
PURPOSE Skin squamous cells carcinomas (SCC) are frequently tumor, especially in the elderly population. Surgical excision is the standard treatment. But for patients suffering large tumor or/with comorbidity, a conservative approach with irradiation can be proposed. The hypofractionated schedule is used to shorten the overall treatment time with same results and without compromising therapeutic outcomes. The aim of this study is to assess the efficacy and tolerance of hypofractionated radiotherapy for invasive SCC of the scalp in elderly. PATIENTS AND METHODS We included patients suffering from SCC of the scalp and treated by hypofractionated radiotherapy at the Institut de cancérologie de Lorraine or centre Émile-Durkeim d'Épinal, from January 2019 to December 2021. Characteristics of patients, size of the lesion and side effects were collected retrospectively. Tumor size at 6 months corresponded to the primary endpoint. Toxicity was collected for the secondary endpoint. RESULTS Twelve patients with a median age of 85 years old were included. The mean size was 4,5cm with a bone invasion in 2/3 of cases. Radiotherapy was delivered after surgical excision for half of the patient. The dose delivered was 54Gy in 18 daily fractions size. Six months after irradiation: 6/11 patients had no residual lesion, 2/11 had a partial response with a residual lesion of about 1cm. 3 patients presented local recurrence. One patient died within 6 months of radiotherapy because of another comorbidity. In total, 25% had presented a grade 3 acute radiation dermatitis, no grade 4 toxicity. CONCLUSION Short term of moderately hypofractionated schedule radiotherapy was a success with complete or partial response for more than 70% of the patients in squamous cell carcinomas. There is no major side effect.
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Affiliation(s)
- J Jacques
- Radiation Department, institut de cancérologie de Loraine Alexis-Vautrin, Academic Department of Radiation Therapy and Brachytherapy, 6, avenue de Bourgogne, CS 30519, 54511 Vandœuvre-lès-Nancy, France.
| | - S Renard
- Radiation Department, institut de cancérologie de Loraine Alexis-Vautrin, Academic Department of Radiation Therapy and Brachytherapy, 6, avenue de Bourgogne, CS 30519, 54511 Vandœuvre-lès-Nancy, France
| | - N Demogeot
- Radiation Department, institut de cancérologie de Loraine Alexis-Vautrin, Academic Department of Radiation Therapy and Brachytherapy, 6, avenue de Bourgogne, CS 30519, 54511 Vandœuvre-lès-Nancy, France; Radiation Department, centre Émile-Durkheim, Épinal, France
| | - J C Faivre
- Radiation Department, institut de cancérologie de Loraine Alexis-Vautrin, Academic Department of Radiation Therapy and Brachytherapy, 6, avenue de Bourgogne, CS 30519, 54511 Vandœuvre-lès-Nancy, France
| | - D Peiffert
- Radiation Department, institut de cancérologie de Loraine Alexis-Vautrin, Academic Department of Radiation Therapy and Brachytherapy, 6, avenue de Bourgogne, CS 30519, 54511 Vandœuvre-lès-Nancy, France
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Py JF, Salleron J, Vogin G, Courrech F, Teixeira P, Colnat-Coulbois S, Baumard F, Thureau S, Supiot S, Peiffert D, Oldrini G, Faivre JC. Could conventionally fractionated radiation therapy coupled with stereotactic body radiation therapy improve local control in bone oligometastases? Cancer Radiother 2023; 27:1-10. [PMID: 36641333 DOI: 10.1016/j.canrad.2022.03.002] [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: 01/18/2022] [Revised: 03/28/2022] [Accepted: 03/31/2022] [Indexed: 01/14/2023]
Abstract
PURPOSE To describe clinical outcomes of stereotactic body radiation therapy (SBRT) applied alone or as a boost after a conventionally fractionated radiation therapy (CFRT) for the treatment of bone oligometastases. MATERIAL AND METHODS This retrospective cohort study included patients treated with SBRT from January 2007 to December 2015 in the Institut de cancérologie de Lorraine in France. The inclusion criteria involved adults treated with SBRT for one to three bone metastases from a histological proven solid tumor and a primary tumor treated, an Eastern Cooperative Oncology Group (ECOG) score inferior or equal to 2. Local control (LC), overall survival (OS), progression free survival (PFS), bone progression incidence (BPI), skeletal related events free survival (SRE-FS), toxicity and pain response were evaluated. RESULTS Forty-six patients and 52 bone metastases were treated. Twenty-three metastases (44.2%) received SBRT alone mainly for non-spine metastases and 29 (55.8%) a combination of CFRT and SBRT mainly for spine metastases. The median follow-up time was 22months (range: 4-89months). Five local failures (9.6%) were observed and the cumulative incidences of local recurrence at 1 and 2years respectively were 4.4% and 8% with a median time of local recurrence of 17months (range: 4-36months). The one- and two-years OS were 90.8% and 87.4%. Visceral metastasis (HR: 3.40, 95% confidence interval [1.10-10.50]) and a time from primary diagnosis (TPD)>30months (HR: 0.22 [0.06-0.82]) were independent prognostic factors of OS. The 1 and 2years PFS were 66.8% and 30.9% with a median PFS time of 18months [13-24]. The one- and two-years BPI were 27.7% and 55.3%. In multivariate analysis, unfavorable histology was associated with worse BPI (HR: 3.19 [1.32-7.76]). The SRE-FS was 93.3% and 78.5% % at 1 and 2years. The overall response rate for pain was 75% in the evaluable patients (9/12). No grade≥3 toxicity nor especially no radiation induced myelopathy (RIM), two patients developed asymptomatic vertebral compression fractures. CONCLUSION The sole use of SBRT or its association with CFRT is an efficient and well-tolerated treatment that allows high LC for bone oligometastases.
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Affiliation(s)
- J F Py
- Department of Radiation Oncology, Institut de cancérologie de Lorraine, Vandœuvre-lès-Nancy, France.
| | - J Salleron
- Department of Biostatistics and Data Management, Institut de cancérologie de Lorraine, Vandœuvre-lès-Nancy, France
| | - G Vogin
- Department of Radiation Oncology, Institut de cancérologie de Lorraine, Vandœuvre-lès-Nancy, France
| | - F Courrech
- Department of Radiation Oncology, Institut de cancérologie de Lorraine, Vandœuvre-lès-Nancy, France
| | - P Teixeira
- Guilloz Imaging Department, CHU de Nancy, Nancy, France
| | - S Colnat-Coulbois
- Department of Neurosurgery, CHU de Nancy, Vandœuvre-lès-Nancy, France
| | - F Baumard
- Department of Biostatistics and Data Management, Institut de cancérologie de Lorraine, Vandœuvre-lès-Nancy, France
| | - S Thureau
- Department of Radiation Oncology, centre Henri-Becquerel, Rouen, France
| | - S Supiot
- Department of Radiation Oncology, Institut de cancérologie de l'Ouest, Saint-Herblain, France
| | - D Peiffert
- Department of Radiation Oncology, Institut de cancérologie de Lorraine, Vandœuvre-lès-Nancy, France
| | - G Oldrini
- Department of Radiology, Institut de cancérologie de Lorraine, Vandœuvre-lès-Nancy, France
| | - J C Faivre
- Department of Radiation Oncology, Institut de cancérologie de Lorraine, Vandœuvre-lès-Nancy, France
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Thureau S, Rogé M, Marchesi V, Hadj Henni A, Faivre JC. [Stereotactic body radiation therapy for spine bone oligometastatic disease]. Cancer Radiother 2021; 25:830-836. [PMID: 34716092 DOI: 10.1016/j.canrad.2021.08.016] [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: 08/16/2021] [Revised: 08/19/2021] [Accepted: 08/22/2021] [Indexed: 10/20/2022]
Abstract
Stereotactic radiotherapy is an ever more common technique, regardless of the location treated. However, spinal stereotactic radiotherapy requires a particular technicality in order to ensure its proper realization. There is now a large literature defining the type of imaging to be used, the dose to be delivered and the delineation of target volumes. This technique can achieve a significant local control and an interesting analgesic efficiency. However, its place in relation to conventional radiotherapy remains limited because it requires MRI imaging and a significantly longer patient management during the treatment fraction. In this context, it is currently mainly restricted to oligometastatic patients or for re-irradiations.
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Affiliation(s)
- S Thureau
- Département de radiothérapie et de physique médicale, centre Henri-Becquerel-CLCC-Unicancer, Quantif-Litis EA 4108, rue d'Amiens, 76038 Rouen, France.
| | - M Rogé
- Département de radiothérapie et de physique médicale, centre Henri-Becquerel-CLCC-Unicancer, Quantif-Litis EA 4108, rue d'Amiens, 76038 Rouen, France
| | - V Marchesi
- Lorraine Institute of Cancerology-Alexis-Vautrin Comprehensive Cancer Center, Academic Radiation Oncology & Brachytherapy Department, 6, avenue de Bourgogne, Vandoeuvre Lès Nancy 4519, France
| | - A Hadj Henni
- Département de radiothérapie et de physique médicale, centre Henri-Becquerel-CLCC-Unicancer, Quantif-Litis EA 4108, rue d'Amiens, 76038 Rouen, France
| | - J C Faivre
- Lorraine Institute of Cancerology-Alexis-Vautrin Comprehensive Cancer Center, Academic Radiation Oncology & Brachytherapy Department, 6, avenue de Bourgogne, Vandoeuvre Lès Nancy 4519, France
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Peiffert D, Baumann AS, Serre AA, Vendrely V, Rouard N, Faivre JC, Vogin G. [Anal canal cancer: In the era of intensity-modulated radiotherapy, outstanding issues]. Cancer Radiother 2018; 22:509-514. [PMID: 30181029 DOI: 10.1016/j.canrad.2018.07.131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 07/09/2018] [Accepted: 07/15/2018] [Indexed: 02/07/2023]
Abstract
Intensity-modulated radiotherapy makes possible to optimize the irradiation and spare normal tissues. The toxicity remains important with concomitant chemotherapy often associated. The improvement of MRI and PET-CT define more precisely the target volumes, which need a higher dose, but necessitates to respect the rules of contouring. The treatment is uniform whatever the stage but should be individualized based on clinical stage and tumor response. New paradigms concern biology, staging, volumes and doses, fractionation and combined treatments.
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Affiliation(s)
- D Peiffert
- Service de radiothérapie, institut de cancérologie de Lorraine centre Alexis-Vautrin, 6, avenue de Bourgogne, 54519 Vandœuvre-lès-Nancy, France; EA 4360 Apemac, université de Lorraine, 9, avenue de la Forêt-de-Haye, 54500 Nancy, France.
| | - A S Baumann
- Service de radiothérapie, institut de cancérologie de Lorraine centre Alexis-Vautrin, 6, avenue de Bourgogne, 54519 Vandœuvre-lès-Nancy, France
| | - A A Serre
- Service de radiothérapie, institut de cancérologie de Lorraine centre Alexis-Vautrin, 6, avenue de Bourgogne, 54519 Vandœuvre-lès-Nancy, France
| | - V Vendrely
- Service de radiothérapie, hôpital Haut-Lévêque, CHU de Bordeaux, avenue de Magellan, 33604 Pessac, France
| | - N Rouard
- Hôpital Édouard-Hériot, 69000 Lyon, France
| | - J C Faivre
- Service de radiothérapie, institut de cancérologie de Lorraine centre Alexis-Vautrin, 6, avenue de Bourgogne, 54519 Vandœuvre-lès-Nancy, France
| | - G Vogin
- Service de radiothérapie, institut de cancérologie de Lorraine centre Alexis-Vautrin, 6, avenue de Bourgogne, 54519 Vandœuvre-lès-Nancy, France
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Faivre JC, Bibault JE, Bellesoeur A, Salleron J, Wack M, Biau J, Cervellera M, Janoray G, Leroy T, Lescut N, Martin V, Molina S, Pichon B, Teyssier C, Thureau S, Mazeron JJ, Roché H, Culine S. Choosing a career in oncology: results of a nationwide cross-sectional study. BMC Med Educ 2018; 18:15. [PMID: 29334939 PMCID: PMC5769332 DOI: 10.1186/s12909-018-1117-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Accepted: 01/05/2018] [Indexed: 05/15/2023]
Abstract
BACKGROUND Little information is currently available concerning young medical students desire to pursue a career in oncology, or their career expectations. METHODS This project is a cross-sectional epidemiological study. A voluntary and anonymous questionnaire was distributed to all young oncologists studying in France between the 2nd of October 2013 and the 23rd of February 2014. RESULTS The overall response rate was 75.6%. A total of 505 young oncologists completed the questionnaire. The main determining factors in the decision to practice oncology were the cross-sectional nature of the field (70.8%), the depth and variety of human relations (56.3%) and the multi-disciplinary field of work (50.2%). Most residents would like to complete a rotation outside of their assigned region (59.2%) or abroad (70.2%) in order to acquire additional expertise (67.7%). In addition, most interns would like to undertake a fellowship involving care, teaching and research in order to hone their skills (85.7%) and forge a career in public hospitals (46.4%). Career prospects mainly involve salaried positions in public hospitals. Many young oncologists are concerned about their professional future, due to the shortage of openings (40.8%), the workload (52.8%) and the lack of work-life balance (33.4%). CONCLUSIONS This investigation provides a comprehensive profile of the reasons young oncologists chose to pursue a career in oncology, and their career prospects.
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Affiliation(s)
- J. C. Faivre
- Academic Radiation Oncology & Brachytherapy Department, Lorraine Institute of Cancerology - Alexis-Vautrin Comprehensive Cancer Centre, 6 avenue de Bourgogne, 54519 Vandœuvre-lès-Nancy, France
- Radiation Oncology Department, University Hospital of Paris (Georges Pompidou European Hospital), 20 rue Leblanc, 75015 Paris, France
- Academic Department of Radiation Therapy & Brachytherapy, Lorraine Institute of Cancerology – Alexis-Vautrin CLCC [Centre de lutte contre le cancer – Cancer Centre] – Unicancer, 6 avenue de Bourgogne –CS 30 519, cedex F-54 511 Vandoeuvre-lès-Nancy, France
| | - J. E. Bibault
- French Society of Young Radiation Oncologists (SFjRO), Centre Antoine-Béclère, 45 rue des Saint Pères, 75005 Paris, France
- Radiation Oncology Department, University Hospital of Paris (Georges Pompidou European Hospital), 20 rue Leblanc, 75015 Paris, France
- Paris Descartes University, 12 rue de l’Ecole de médicine, 75006 Paris, France
| | - A. Bellesoeur
- Medical Oncology Department, University Hospital of Paris (Teaching Hospital Cochin), 27 rue du Faubourg Saint Jacques, 75014 Paris, France
- French Resident’s and Fellow’s Association for Teaching and Research in Oncology (AERIO), 149 avenue du Maine, 75014 Paris, France
| | - J. Salleron
- Biostatistics Department, Lorraine Institute of Cancerology - Alexis-Vautrin Comprehensive Cancer Centre, 6 avenue de Bourgogne, F-54519 Vandœuvre-lès-Nancy, France
| | - M. Wack
- Biostatistics and Epidemiology Department, University Hospital of Nancy, 9 avenue de la Forêt de Haye, 54505 Vandoeuvre-lès-nancy, France
| | - J. Biau
- French Society of Young Radiation Oncologists (SFjRO), Centre Antoine-Béclère, 45 rue des Saint Pères, 75005 Paris, France
- Radiation Oncology Department, Jean-Perrin Comprehensive Cancer Centre, 58 rue Montalembert, 63000 Clermont-Ferrand, France
- University of Auvergne, 28 place Henri Dunant, 63000 Clermont-Ferrand, France
| | - M. Cervellera
- French Society of Young Radiation Oncologists (SFjRO), Centre Antoine-Béclère, 45 rue des Saint Pères, 75005 Paris, France
- Radiation Oncology Department, Jean Godinot Comprehensive Cancer Centre, 1 rue du Général Koenig, 51726 Reims, France
| | - G. Janoray
- French Society of Young Radiation Oncologists (SFjRO), Centre Antoine-Béclère, 45 rue des Saint Pères, 75005 Paris, France
- S. Kaplan Cancer Centre, Radiation Oncology Department, University Hospital of Tours, 2 boulevard Tonnelé, 37000 Tours, France
| | - T. Leroy
- French Society of Young Radiation Oncologists (SFjRO), Centre Antoine-Béclère, 45 rue des Saint Pères, 75005 Paris, France
- Academic Radiation Oncology Department, Oscar Lambret Comprehensive Cancer Centre, 3 rue Frédéric Combemale, 59000 Lille, France
| | - N. Lescut
- French Society of Young Radiation Oncologists (SFjRO), Centre Antoine-Béclère, 45 rue des Saint Pères, 75005 Paris, France
- Radiation Oncology Department, University Hospital of Besançon, 3 boulevard Fleming, 25000 Besançon, France
| | - V. Martin
- French Society of Young Radiation Oncologists (SFjRO), Centre Antoine-Béclère, 45 rue des Saint Pères, 75005 Paris, France
- Radiation Oncology Department, University Hospital of Paris (Kremlin-Bicêtre Hospital), 78 rue du Général Leclerc, 94270 Paris, France
- Paris Sud University, 63 rue Gabriel Péri, 94276 Orsay, France
| | - S. Molina
- French Society of Young Radiation Oncologists (SFjRO), Centre Antoine-Béclère, 45 rue des Saint Pères, 75005 Paris, France
- Radiation Oncology Department, University Hospital of Poitiers, 2 rue de la Milétrie, 86021 Poitiers, France
| | - B. Pichon
- French Society of Young Radiation Oncologists (SFjRO), Centre Antoine-Béclère, 45 rue des Saint Pères, 75005 Paris, France
- Radiation Oncology Department, René-Gauducheau Comprehensive Cancer Centre, boulevard Jacques Monod, 44805 Nantes, Saint-Herblain France
| | - C. Teyssier
- French Society of Young Radiation Oncologists (SFjRO), Centre Antoine-Béclère, 45 rue des Saint Pères, 75005 Paris, France
- Radiation Oncology Department, University Hospital of Besançon, 3 boulevard Fleming, 25000 Besançon, France
| | - S. Thureau
- Radiation Oncology & Medical Physics Department, Henri-Becquerel Comprehensive Cancer Centre, rue d’Amiens, 76000 Rouen, France
- EA4108 QuantIf Litis, University of Rouen, 22 boulevard Gambetta, 76000 Rouen, France
| | - J. J. Mazeron
- Radiation Oncology Department, University Hospital of Paris (Pitié-Salpétrière Hospital), 83 boulevard de l’hôpital, 75013 Paris, France
- University Pierre et Marie Curie, 4 place Jussieu, 75005 Paris, France
| | - H. Roché
- Oncopole Toulouse, Claudius Regaud Comprehensive Cancer Centre, 1 avenue Irène Joliot-Curie, 31059 Toulouse, France
- University of Toulouse, 37 allée Jules Guesde, 36000 Toulouse, France
| | - S. Culine
- Medical Oncology Department, University Hospital of Paris (Saint-Louis Hospital), 1 avenue Claude Vellefaux, 75010 Paris, France
- Paris Diderot University, 16 rue Huchard, 75018 Paris, France
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Faivre JC, Adam V, Block V, Metzger M, Salleron J, Dauchy S. Clinical practice guidelines of the French Association for Supportive Care in Cancer and the French Society for Psycho-oncology: refusal of treatment by adults afflicted with cancer. Support Care Cancer 2017; 25:3425-3435. [PMID: 28597252 DOI: 10.1007/s00520-017-3762-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 11/28/2016] [Accepted: 05/22/2017] [Indexed: 10/19/2022]
Abstract
PURPOSE The study's purpose was to develop practical guidelines for assessment and management of refusal of treatment by adults afflicted with cancer. METHODS The French Association for Supportive Care in Cancer and the French Society for Psycho-oncology gathered a task force that applied a consensus methodology to draft guidelines studied predisposing situations, the diagnosis, regulatory aspects, and the management of refusal of treatment by adults afflicted with cancer. RESULTS We propose five guidelines: (1) be aware of the conditions/profiles of patients most often associated with refusal of treatment so as to adequately underpin the care and support measures; (2) understand the complexity of the process of refusal and knowing how to accurately identify the type and the modalities of the refused treatments; (3) apply a way to systematically analyze refusal, thereby promoting progression from a situation of disaccord toward a consensual decision; (4) devise procedures, according to the legal context, to address refusal of treatment that safeguards the stakeholders in situations of sustained disaccord; and (5) know the indications for ethical collective decision-making. CONCLUSION The quality of the relationship between patients and health professionals, and the communication between them are essential components involved in reaching a point of consent or refusal of treatment. A process of systematic analysis of refusal is recommended as the only way to ensure that all of the physiological, psychological, and contextual elements that are potentially involved are taken into account.
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Affiliation(s)
- J C Faivre
- Academic Department of Radiation Therapy and Brachytherapy, Lorraine Institute of Cancerology - Alexis-Vautrin CLCC [Centre de lutte contre le cancer - Cancer Center] - Unicancer, 6 avenue de Bourgogne - CS 30 519, F-54511, Vandoeuvre-lès-Nancy cedex, France.
| | - V Adam
- Supportive Care in Cancer Department, Institut de Cancérologie de Lorraine, F-54500, Vandœuvre-lès-Nancy, France
| | - V Block
- French Association for Supportive Care in Cancer, 20 rue leblanc, F-7515, Paris, France
| | - M Metzger
- Institut de Cancérologie de Lorraine, Medical Library, F-54500, Vandœuvre-lès-Nancy, France
| | - J Salleron
- Biostatistics and Epidemiology Department, Institut de Cancérologie de Lorraine, F-54500, Vandœuvre-lès-Nancy, France
| | - S Dauchy
- Gustave Roussy, Département de Soins de Support, Université Paris-Saclay, F-94805, Villejuif, France.,ES3, EA1610, Université Paris-Sud, Paris, France
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Duchazeaubeneix JC, Faivre JC, Garreta D, Guillerminet B, Rouger M, Saudinos J, Palmieri P, Raybaud C, Salamon G, Charpak G, Melchart G, Perrin Y, Santiard JC, Sauli F. Nuclear scattering radiography. J Comput Assist Tomogr 1980; 4:803-18. [PMID: 6260837 DOI: 10.1097/00004728-198012000-00013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The quasi-elastic scattering of 1 GeV protons permits the three-dimensional reconstruction of the density distribution in extended bodies. Fast multiwire proportional chambers are used to localize the position of every incoming and outgoing charged particle and to determine the coordinates at the interaction vertex. This article describes tests on a human head fixed on formalin. The comparison with computed tomography scans and anatomical sections is encouraging. Slices with a volume element of 5.5 mm3 illustrate the sensitivity of the method. The results also demonstrate the ability of the method to select the density distribution of hydrogen by making use of the kinematic relations specific to elastic scattering. Trials of this method in living humans are being planned.
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Berger J, Duchazeaubeneix JC, Faivre JC, Garreta D, Legrand D, Rouger M, Saudinos J, Raybaud C, Salamon G. Nuclear scattering radiography of the spine and sphenoid bone. J Comput Assist Tomogr 1978; 2:488-98. [PMID: 701529 DOI: 10.1097/00004728-197809000-00021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Nuclear scattering radiographs of a portion of a spine and a sphenoid bone have been obtained using a 1 GeV proton beam. The ability of the method to yield three-dimensional representations is illustrated by three series of adjacent pictures corresponding to the three orthogonal planes (elementary volume: 5.2 mm3 and 0.9 mm3). The sensitivity of the method is discussed. Nuclear scattering radiographs are compared with ones obtained by conventional X-ray tomography and computed tomography. Nuclear scattering radiography also may be used to analyze the partition of hydrogen within the tissures. Hydrogen radiographs obtained in this way are shown.
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Berger J, Duchazeaubeneix JC, Faivre JC, Garreta D, Legrand D, Rouger M, Saudinos J, Charpak G, Guillerminet B, Santiard JC, Sauli F, Lecaque G, Palmieri P, Raybaud C, Salamon G. Reconstruction tomography by nuclear scattering radiography. Neuroradiology 1978; 16:576-8. [PMID: 745763 DOI: 10.1007/bf00395367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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