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Longo R, Padovani R, Bertocchi L, De Denaro M, Milotti E, Rigon L, Valenti M, Sartor G, de Crescenzo S, Strigari L, Mascaro L, Turra A, Mazzocchi S, Torresin A, Pignoli E, Guidi G, De Ponti E, Brambilla M, Paiusco M, Diliberto R, Traino A, Soriani A, Buonamici FB, Stasi M, Trianni A, Scalchi P, Cavedon C, Francescon P, Ropolo R, Hrsak H. Training for the future: 8 years of Master of Advanced Studies in medical physics in Trieste. Phys Med 2021. [DOI: 10.1016/s1120-1797(22)00570-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Alticozzi L, Buonamici FB, Bortoli E, Traino A. Collective effective dose from medical radiation exposures for the Tuscan population in 2016. Phys Med 2021. [DOI: 10.1016/s1120-1797(22)00503-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Biondi M, Vanzi E, De Otto G, Belmonte G, Banci Buonamici F. A correlation study between clinical dose distribution and gamma passing rates in pre-treatment Tomotherapy quality assurance. Biomed Phys Eng Express 2019. [DOI: 10.1088/2057-1976/ab27a3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Biondi M, Vanzi E, De Otto G, Carbone SF, Nardone V, Banci Buonamici F. Effects of CT FOV displacement and acquisition parameters variation on texture analysis features. ACTA ACUST UNITED AC 2018; 63:235021. [DOI: 10.1088/1361-6560/aaefac] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Biondi M, Vanzi E, De Otto G, Belmonte G, Nardone V, Tini P, Sebaste L, Carfagno T, Battaglia G, Rubino G, Pastina P, Pirtoli L, Banci Buonamici F. 304. Role of texture analysis (TA) as prognostic factor in patients with glioblastoma diagnosis subject to radio-chemotherapic treatment concerning post-operating tomozolomide. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Biondi M, Vanzi E, De Otto G, Belmonte G, Nardone V, Cirigliano A, Grassi A, Carbone S, Tini P, Sebaste L, Carfagno T, Battaglia G, Rubino G, Pastina P, Correale P, Nioche C, Pirtoli L, Banci Buonamici F. 305. Can magnetic-resonance-imaging volumetric texture analysis predict treatment outcome in rectal cancer patients undergoing neoadjuvant chemo-radiation? Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Nardone V, Tini P, Carbone SF, Grassi A, Biondi M, Sebaste L, Carfagno T, Vanzi E, De Otto G, Battaglia G, Rubino G, Pastina P, Belmonte G, Mazzoni LN, Banci Buonamici F, Mazzei MA, Pirtoli L. Bone texture analysis using CT-simulation scans to individuate risk parameters for radiation-induced insufficiency fractures. Osteoporos Int 2017; 28:1915-1923. [PMID: 28243706 DOI: 10.1007/s00198-017-3968-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 02/13/2017] [Indexed: 12/29/2022]
Abstract
UNLABELLED This study deals with the role of texture analysis as a predictive factor of radiation-induced insufficiency fractures in patients undergoing pelvic radiation. INTRODUCTION This study aims to assess the texture analysis (TA) of computed tomography (CT) simulation scans as a predictive factor of insufficiency fractures (IFs) in patients with pelvic malignancies undergoing radiation therapy (RT). METHODS We performed an analysis of patients undergoing pelvic RT from January 2010 to December 2014, 24 of whom had developed pelvic bone IFs. We analyzed CT-simulation images using ImageJ macro software and selected two regions of interest (ROIs), which are L5 body and the femoral head. TA parameters included mean (m), standard deviation (SD), skewness (sk), kurtosis (k), entropy (e), and uniformity (u). The IFs patients were compared (1:2 ratio) with controlled patients who had not developed IFs and matched for sex, age, menopausal status, type of tumor, use of chemotherapy, and RT dose. A reliability test of intra- and inter-reader ROI TA reproducibility with the intra-class correlation coefficient (ICC) was performed. Univariate and multivariate analyses (logistic regression) were applied for TA parameters observed both in the IFs and the controlled groups. RESULTS Inter- and intra-reader ROI TA was highly reproducible (ICC > 0.90). Significant TA parameters on paired t test included L5 m (p = 0.001), SD (p = 0.002), k (p = 0.006), e (p = 0.004), and u (p = 0.015) and femoral head m (p < 0.001) and SD (p = 0.001), whereas on logistic regression analysis, L5 e (p = 0.003) and u (p = 0.010) and femoral head m (p = 0.027), SD (p = 0.015), and sex (p = 0.044). CONCLUSIONS In our experience, bone CT TA could be correlated to the risk of radiation-induced IFs. Studies on a large patient series and methodological refinements are warranted.
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Affiliation(s)
- V Nardone
- Unit of Radiation Oncology, University Hospital of Siena, Viale Bracci, 53100, Siena, Italy.
| | - P Tini
- Unit of Radiation Oncology, University Hospital of Siena, Viale Bracci, 53100, Siena, Italy
| | - S F Carbone
- Unit of Diagnostic Imaging, University Hospital of Siena, Siena, Italy
| | - A Grassi
- Unit of Diagnostic Imaging, University Hospital of Siena, Siena, Italy
| | - M Biondi
- Unit of Medical Physics, University Hospital of Siena, Siena, Italy
| | - L Sebaste
- Unit of Radiation Oncology, University Hospital of Siena, Viale Bracci, 53100, Siena, Italy
| | - T Carfagno
- Unit of Radiation Oncology, University Hospital of Siena, Viale Bracci, 53100, Siena, Italy
| | - E Vanzi
- Unit of Medical Physics, University Hospital of Siena, Siena, Italy
| | - G De Otto
- Unit of Medical Physics, University Hospital of Siena, Siena, Italy
| | - G Battaglia
- Unit of Radiation Oncology, University Hospital of Siena, Viale Bracci, 53100, Siena, Italy
| | - G Rubino
- Unit of Radiation Oncology, University Hospital of Siena, Viale Bracci, 53100, Siena, Italy
| | - P Pastina
- Unit of Radiation Oncology, University Hospital of Siena, Viale Bracci, 53100, Siena, Italy
| | - G Belmonte
- Unit of Medical Physics, University Hospital of Siena, Siena, Italy
| | - L N Mazzoni
- Unit of Medical Physics, University Hospital of Siena, Siena, Italy
| | | | - M A Mazzei
- Unit of Diagnostic Imaging, University Hospital of Siena, Siena, Italy
| | - L Pirtoli
- Unit of Radiation Oncology, University Hospital of Siena, Viale Bracci, 53100, Siena, Italy
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Nardone V, Tini P, Mazzoni L, Penna A, Biondi M, Sebaste L, Carfagno T, Vanzi E, De Otto G, Battaglia G, Pastina P, Carbone S, Buonamici FB, Pirtoli L. Prognostic role of texture analysis in lung cancer treated with stereotactic ablative radiotherapy (SABR). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw381.08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Biondi M, La Penna A, Vanzi E, Mazzoni L, De Otto G, Belmonte G, Foderà E, Martini R, Imbriaco G, Carbone F, Guasti A, Volterrani L, Banci Buonamici F. TC Protocol optimization: A quantitative approach. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.07.563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Biondi M, Vanzi E, De Otto G, Banci Buonamici F, Belmonte GM, Mazzoni LN, Guasti A, Carbone SF, Mazzei MA, La Penna A, Foderà E, Guerreri D, Maiolino A, Volterrani L. Water/cortical bone decomposition: A new approach in dual energy CT imaging for bone marrow oedema detection. A feasibility study. Phys Med 2016; 32:1712-1716. [PMID: 27524684 DOI: 10.1016/j.ejmp.2016.08.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 07/29/2016] [Accepted: 08/04/2016] [Indexed: 10/21/2022] Open
Abstract
INTRODUCTION Many studies aimed at validating the application of Dual Energy Computed Tomography (DECT) in clinical practice where conventional CT is not exhaustive. An example is given by bone marrow oedema detection, in which DECT based on water/calcium (W/Ca) decomposition was applied. In this paper a new DECT approach, based on water/cortical bone (W/CB) decomposition, was investigated. MATERIALS AND METHODS Eight patients suffering from marrow oedema were scanned with MRI and DECT. Two-materials density decomposition was performed in ROIs corresponding to normal bone marrow and oedema. These regions were drawn on DECT images using MRI informations. Both W/Ca and W/CB were considered as material basis. Scatter plots of W/Ca and W/CB concentrations were made for each ROI in order to evaluate if oedema could be distinguished from normal bone marrow. Thresholds were defined on the scatter plots in order to produce DECT images where oedema regions were highlighted through color maps. The agreement between these images and MR was scored by two expert radiologists. RESULTS For all the patients, the best scores were obtained using W/CB density decomposition. CONCLUSIONS In all cases, DECT color map images based on W/CB decomposition showed better agreement with MR in bone marrow oedema identification with respect to W/Ca decomposition. This result encourages further studies in order to evaluate if DECT based on W/CB decomposition could be an alternative technique to MR, which would be important when short scanning duration is relevant, as in the case of aged or traumatic patients.
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Affiliation(s)
- M Biondi
- Department of Medical Physics, University Hospital of Siena, Italy.
| | - E Vanzi
- Department of Medical Physics, University Hospital of Siena, Italy
| | - G De Otto
- Department of Medical Physics, University Hospital of Siena, Italy
| | | | - G M Belmonte
- Department of Medical Physics, University Hospital of Siena, Italy
| | - L N Mazzoni
- Department of Medical Physics, University Hospital of Siena, Italy
| | - A Guasti
- Department of Medical Physics, Azienda USL Toscana sud est, Italy
| | - S F Carbone
- Department of Diagnostic Imaging, University Hospital of Siena, Italy
| | - M A Mazzei
- Department of Medical, Surgical and Neurosciences, University of Siena, Italy
| | - A La Penna
- Department of Medical, Surgical and Neurosciences, University of Siena, Italy
| | - E Foderà
- Department of Medical, Surgical and Neurosciences, University of Siena, Italy
| | - D Guerreri
- Department of Diagnostic Imaging, University Hospital of Siena, Italy
| | - A Maiolino
- Department of Medical, Surgical and Neurosciences, University of Siena, Italy
| | - L Volterrani
- Department of Medical, Surgical and Neurosciences, University of Siena, Italy
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Biondi M, Nardone V, Bogi A, Mazzoni L, Vanzi E, Belmonte G, De Otto G, Tini P, Pirtoli L, Guasti A, Buonamici FB. Bone texture analysis as predictive factor of radiation-induced damage in pelvic radiotherapy treatment. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Biondi M, Pelliccia L, Bogi A, Mazzoni L, Vanzi E, Belmonte G, De Otto G, Carbone S, Guasti A, Banci Buonamici F. Renal function assessment by texture analysis of R2 map. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Banci Buonamici F, Guasti A, Belmonte G, Vanzi E, Mazzoni L, De Otto G, Bogi A, Biondi M, Giani A, La Rocca A, Guerrini L, Del Corona A, Manzi P. A software package for data registration and analysis in interventional radiology. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Biondi M, Bogi A, Mazzoni L, Vanzi E, Belmonte G, De Otto G, Guerrieri D, Maiolino A, Guerrini L, La Rocca A, Guasti A, Buonamici FB. Dual energy CT imaging for bone marrow edema detection. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Biondi M, Bogi A, Mazzoni L, Vanzi E, Belmonte G, De Otto G, Martini R, Foderà E, Carbone S, Volterrani L, Guasti A, Banci Buonamici F. Rectal cancer texture analysis applied ON ADC maps in response assessment to neoadjuvant therapy. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Marrazzo L, Simontacchi G, Agresti B, Buonamici FB, Cintolesi V, Compagnucci A, Meattini I, Paiar F, Pallotta S, Scoccianti S, Talamonti C, Biti G, Bucciolini M. EVALUATION OF A SURFACE ACQUISITION SYSTEM FOR CHECKING PATIENT POSITIONING. Radiother Oncol 2009. [DOI: 10.1016/s0167-8140(12)72782-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Guidi G, Amadori M, Antognoni P, Tonoli S, Spiazzi L, Ghedi B, Buonamici FB, Schwarz M, Danielli C, Amichetti M, Biti GP, Magrini SM, Bertoni F. SU-FF-T-615: Multicenter Intercomparison for Treatment of the Mesothelioma with IMRT and Tomotherapy. Med Phys 2009. [DOI: 10.1118/1.3182113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Buonamici FB, Compagnucci A, Marrazzo L, Russo S, Bucciolini M. An intercomparison between film dosimetry and diode matrix for IMRT quality assurance. Med Phys 2007; 34:1372-9. [PMID: 17500468 DOI: 10.1118/1.2713426] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
The evaluation of the agreement between measured and calculated dose plays an essential role in the quality assurance (QA) procedures for intensity modulated radiation therapy (IMRT). Film dosimetry has been widely adopted for this purpose due to excellent film characteristics in terms of spatial resolution; unfortunately, it is a time-consuming procedure and requires great care if film has to be used as an absolute dosimeter. If this is not the case, then an independent ionimetric measurement is mandatory to assess the absolute dose agreement. Arrays of detectors are now replacing films for routine IMRT QA, since they permit very simple verification procedures. They show excellent characteristics in terms of linearity, repeatability, and independence of the response from the dose rate, but at the same time present a poor spatial resolution, due to the limited number of detectors available. In our institution, a diode matrix (MapCHECK, provided by Sun Nuclear) is adopted for routine QA. The aim of this work is to compare the performances of absolute film dosimetry with this matrix in QA procedures and to investigate the origin of possible discrepancies between the two methods. The results we present show a very good agreement between the two detectors when used to assess the mean dose deviation between calculated and measured doses (in both cases 0.2%). If the y matrix method is adopted, MapCHECK response shows a slightly better agreement with computed dose distribution than film dosimetry (mean percentage of points satisfying the constraint y < or = 1: 96% versus 94%). This difference is shown not to depend on the different field sampling, but on the detectors' capabilities. Moreover, we show that the diode matrix is able to identify eventual delivery errors as well as film. Our conclusion is that the diode matrix may effectively replace both film dosimetry and ionimetric measurements in routine IMRT QA.
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Affiliation(s)
- F Banci Buonamici
- SOD Fisica Medica, Azienda Ospedaliero-Universitaria Careggi-viale Morgagni 85, I-50134 Firenze, Italy.
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Bucciolini M, Buonamici FB, Mazzocchi S, De Angelis C, Onori S, Cirrone GAP. Diamond detector versus silicon diode and ion chamber in photon beams of different energy and field size. Med Phys 2003; 30:2149-54. [PMID: 12945980 DOI: 10.1118/1.1591431] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
The aim of this work was to test the suitability of a PTW diamond detector for nonreference condition dosimetry in photon beams of different energy (6 and 25 MV) and field size (from 2.6 cm x 2.6 cm to 10 cm x 10 cm). Diamond behavior was compared to that of a Scanditronix p-type silicon diode and a Scanditronix RK ionization chamber. Measurements included output factors (OF). percentage depth doses (PDD) and dose profiles. OFs measured with diamond detector agreed within 1% with those measured with diode and RK chamber. Only at 25 MV, for the smallest field size, RK chamber underestimated OFs due to averaging effects in a pointed shaped beam profile. Agreement was found between PDDs measured with diamond detector and RK chamber for both 6 MV and 25 MV photons and down to 5 cm x 5 cm field size. For the 2.6 cm x 2.6 cm field size, at 25 MV, RK chamber underestimated doses at shallow depth and the difference progressively went to zero in the distal region. PDD curves measured with silicon diode and diamond detector agreed well for the 25 MV beam at all the field sizes. Conversely, the nontissue equivalence of silicon led, for the 6 MV beam, to a slight overestimation of the diode doses in the distal region, at all the field sizes. Penumbra and field width measurements gave values in agreement for all the detectors but with a systematic overestimate by RK measurements. The results obtained confirm that ion chamber is not a suitable detector when high spatial resolution is required. On the other hand, the small differences in the studied parameters, between diamond and silicon systems, do not lead to a significant advantage in the use of diamond detector for routine clinical dosimetry.
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Affiliation(s)
- M Bucciolini
- Dipartimento di Fisiopatologia Clinica dell'Università and INFN, Florence, Italy.
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Bucciolini M, Russo S, Banci Buonamici F, Pini S, Silli P. Dosimetric characterization of a bi-directional micromultileaf collimator for stereotactic applications. Med Phys 2002; 29:1456-63. [PMID: 12148726 DOI: 10.1118/1.1487423] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
A 6 MV photon beam from Linac SL75-5 has been collimated with a new micromultileaf device that is able to shape the field in the two orthogonal directions with four banks of leaves. This is the first clinical installation of the collimator and in this paper the dosimetric characterization of the system is reported. The dosimetric parameters required by the treatment planning system used for the dose calculation in the patient are: tissue maximum ratios, output factors, transmission and leakage of the leaves, penumbra values. Ionization chambers, silicon diode, radiographic films, and LiF thermoluminescent dosimeters have been employed for measurements of absolute dose and beam dosimetric data. Measurements with different dosimeters supply results in reasonable agreement among them and consistent with data available in literature for other models of micromultileaf collimator; that permits the use of the measured parameters for clinical applications. The discrepancies between results obtained with the different detectors (around 2%) for the analyzed parameters can be considered an indication of the accuracy that can be reached by current stereotactic dosimetry.
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Affiliation(s)
- M Bucciolini
- Department of Clinical Physiopathology, University of Florence, Italy.
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Cellai E, Biti G, Banci Buonamici F, Bucciolini M, Compagnucci A, Fallai C, Magrini S, Olmi P, Rossi F, Santoni R. 440The choice of PTV: A crucial point in the treatment plan optimization. Radiother Oncol 1996. [DOI: 10.1016/s0167-8140(96)80449-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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