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Cruz M, Barros R, Martins J, Roriz J, Pinto M, Carneiro A. Stroke-like migraine attacks after radiation therapy : qu’est-ce que c’est ? Rev Med Interne 2018. [DOI: 10.1016/j.revmed.2018.03.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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77
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Froghi F, Koti R, Gurusamy K, Mallett S, Thorburn D, Selves L, James S, Singh J, Pinto M, Eastgate C, McNeil M, Filipe H, Jichi F, Schofield N, Martin D, Davidson B. Cardiac output Optimisation following Liver Transplant (COLT) trial: study protocol for a feasibility randomised controlled trial. Trials 2018. [PMID: 29514697 PMCID: PMC5842525 DOI: 10.1186/s13063-018-2488-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background Patients with liver cirrhosis undergoing liver transplantation have a hyperdynamic circulation which persists into the early postoperative period making accurate assessment of fluid requirements challenging. Goal-directed fluid therapy (GDFT) has been shown to reduce morbidity and mortality in a number of surgery settings. The impact of GDFT in patients undergoing liver transplantation is unknown. A feasibility trial was designed to determine patient and clinician support for recruitment into a randomised controlled trial of GDFT following liver transplantation, adherence to a GDFT protocol, participant withdrawal, and to determine appropriate endpoints for a subsequent larger trial to evaluate the efficacy of GDFT in patients undergoing liver transplantation. Methods The Cardiac output Optimisation following Liver Transplant (COLT) trial is designed as a prospective, single-centre, randomised controlled study to assess the feasibility and safety of GDFT in liver transplantation for patients with cirrhosis. Consenting adults (aged between 18 and 80 years) with biopsy-proven liver cirrhosis who have been selected to undergo a first liver transplantation will be included in the trial and randomised into GDFT or standard care starting immediately after surgery and continuing for the first 12 h thereafter. Both groups will have cardiac output and stroke volume monitored using the FloTrac (EV1000) device. The intervention will consist of a protocolised GDFT approach to patient management, using stroke volume optimisation. The control group will receive standard care, without stroke volume and cardiac output measurement. After 12 h the patient’s fluid management will revert to standard of care. The primary endpoint of this study is feasibility. Secondary endpoints will include a safety assessment of the intervention, graft and patient survival, liver function, postoperative complications graded by Clavien-Dindo criteria, length of intensive care and hospital stay and quality of life across the intervention and control groups. Discussion There is a growing body of evidence that the use of perioperative GDFT in surgical patients can improve outcomes; however, signals of harm have also been detected. Patients with liver cirrhosis undergoing liver transplantation have markedly different cardiovascular physiology than general surgical patients. If GDFT is proven to be feasible and safe in this patient group, then a multicentre trial to demonstrate efficacy and cost-effectiveness will be required. Trial registration International Standard Randomised Controlled Trial Registry, ID: ISRCTN10329248. Registered on 4 April 2016. Electronic supplementary material The online version of this article (10.1186/s13063-018-2488-8) contains supplementary material, which is available to authorized users.
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Bertorelle F, Pinto M, Zappon R, Pilot R, Litti L, Fiameni S, Conti G, Gobbo M, Toffoli G, Colombatti M, Fracasso G, Meneghetti M. Safe core-satellite magneto-plasmonic nanostructures for efficient targeting and photothermal treatment of tumor cells. NANOSCALE 2018; 10:976-984. [PMID: 29264608 DOI: 10.1039/c7nr07844g] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Magneto-plasmonic nanostructures functionalized with cell targeting units are of great interest for nanobiotechnology applications. Photothermal treatment of cells targeted with antibody functionalized nanostructures and followed by magnetic isolation, allows killing selected cells and hence is one of the applications of great interest. The magneto-plasmonic nanostructures reported herein were synthesized using naked gold and magnetite nanoparticles obtained through a green approach based on laser ablation of bulk materials in water. These particles do not need purifications steps for biocompatibility and are functionalized with a SERRS (surface enhanced resonance Raman scattering) active molecule for detection and with an antibody for targeting prostate tumor cells. Quantitative results for the cell targeting and selection efficiency show an overall accuracy of 94% at picomolar concentrations. The photothermal treatment efficiently kills targeted and magneto-selected cells producing a viability below 5% after 3 min of irradiation, compared with almost 100% viability of incubated and irradiated, but non targeted cells.
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Waddington Cruz M, Berensztejn A, Pinto M, Mundayat R. Late-Onset Tranthyretin Familial Amyloid Polyneuropathy: Characterization of Brazilian Subjects from the THAOS registry. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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80
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Machado C, Pinto P, Silva P, Almeida D, Moreira J, Pinto M, Bousbaa H, Cidade H. Heterocyclic chalcone derivatives: Synthesis and biological activity evaluation: PS207. Porto Biomed J 2017; 2:225. [PMID: 32258727 DOI: 10.1016/j.pbj.2017.07.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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81
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Lopes N, Long S, Resende D, Kijjoa A, Silva A, Pina A, Fernández-Marcelo T, Vasconcelos MH, Pinto M, Sousa E. Synthesis and tumor cell growth inhibitory effects of the marine product analogues of fiscalin B: PS196. Porto Biomed J 2017; 2:224. [PMID: 32258726 DOI: 10.1016/j.pbj.2017.07.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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82
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Mandurino C, Pinto M, Guido A, Sgarra L, Santobuono VE, Memeo R, Nacci F, Anaclerio M, Luzzi G, Favale S. P997First experience in 19 months attain stability lv-lead extraction. Europace 2017. [DOI: 10.1093/ehjci/eux151.178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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83
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Pinto M, Steffen RE, Cobelens F, van den Hof S, Entringer A, Trajman A. Cost-effectiveness of the Xpert® MTB/RIF assay for tuberculosis diagnosis in Brazil. Int J Tuberc Lung Dis 2017; 20:611-8. [PMID: 27084814 DOI: 10.5588/ijtld.15.0455] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION The Xpert® MTB/RIF assay is being implemented as a substitute for sputum smear microscopy (SSM) in many low and high tuberculosis (TB) burden countries, including Brazil, a country with low multidrug resistance and moderate human immunodeficiency virus co-infection rates. SETTING Brazilian National TB Programme (NTP). OBJECTIVE AND DESIGN We estimated the incremental cost-effectiveness ratio (ICER) of Xpert as a substitute for two SSM tests in the diagnosis of drug-susceptible TB. The costs for confirming each additional case and for avoiding treatment due to false-positive empirical diagnoses were estimated. RESULTS The ICER was US$943 for each additional TB diagnosis and US$356 for each additional TB diagnosis with bacteriological confirmation, assuming 80% specificity of clinical diagnosis using both strategies. For every 100 000 patients with suspected TB, the NTP would spend an additional US$1.2 million per year to confirm 3344 more TB patients. The model was highly sensitive to specificity of clinical diagnosis after a negative test. CONCLUSION Although the NTP has no threshold for cost-effectiveness, our model can provide support for decision makers in Brazil and other countries with a low prevalence of drug resistance among TB patients. Financial benefit can potentially be expected if physicians rely more on a negative Xpert result and empirical treatment is reduced.
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Alonso A, Baca Castex C, Pinto M, Caldevilla M, Ferrante A, Miragaya M. Uso de semen congelado en programas de inseminación artificial en equinos. SPERMOVA 2016. [DOI: 10.18548/aspe/0004.04] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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85
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Pinto M, Pascual RF. Exploring LIS Students Beliefs in Importance and Self-Efficacy of Core Information Literacy Competencies. COLLEGE & RESEARCH LIBRARIES 2016. [DOI: 10.5860/crl.77.6.703] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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86
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Kaupp-Roberts SD, Yadegarfar G, Friend E, O'Donnell CM, Valle JW, Byrne C, Bahar I, Finch-Jones M, Gillmore R, Johnson CD, Pereira SP, Wiggers JK, Pinto M, Al-Sarireh B, Ramage JK. Validation of the EORTC QLQ-BIL21 questionnaire for measuring quality of life in patients with cholangiocarcinoma and cancer of the gallbladder. Br J Cancer 2016; 115:1032-1038. [PMID: 27673364 PMCID: PMC5117782 DOI: 10.1038/bjc.2016.284] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Revised: 07/10/2016] [Accepted: 08/15/2016] [Indexed: 01/04/2023] Open
Abstract
Background: There is no specific quality of life (QoL) measurement tool to quantify QoL in patients with biliary tract cancer. Quality of life measurement is an increasingly crucial trial end point and is now being incorporated into clinical practice. Methods: This International Multicentre Phase IV Validation Study assessed the QLQ-BIL21 module in 172 patients with cholangiocarcinoma and 91 patients with cancer of the gallbladder. Patients completed the questionnaire at baseline pretherapy and subsequently at 2 months. Following this, the psychometric properties of reliability, validity, scale structure and responsiveness to change were analysed. Results: Analysis of the QLQ-BIL21 scales showed appropriate reliability with Cronbach's α-coefficients >0.70 for all scales overall. Intraclass correlations exceeded 0.80 for all scales. Convergent validity >0.40 was demonstrated for all items within scales, and discriminant validity was confirmed with values <0.70 for all scales compared with each other. Scale scores changed in accordance with Karnofsky performance status and in response to clinical change. Conclusions: The QLQ-BIL21 is a valid tool for the assessment of QoL in patients with cholangiocarcinoma and cancer of the gallbladder.
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Reis-Mendes A, Gomes AS, Carvalho RA, Carvalho F, Remião F, Pinto M, Bastos ML, Sousa E, Costa VM. Naphthoquinoxaline metabolite of mitoxantrone is less cardiotoxic than the parent compound and it can be a more cardiosafe drug in anticancer therapy. Arch Toxicol 2016; 91:1871-1890. [PMID: 27629428 DOI: 10.1007/s00204-016-1839-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 08/24/2016] [Indexed: 12/15/2022]
Abstract
Mitoxantrone (MTX) is an antineoplastic agent used to treat several types of cancers and on multiple sclerosis, which shows a high incidence of cardiotoxicity. Still, the underlying mechanisms of MTX cardiotoxicity are poorly understood and the potential toxicity of its metabolites scarcely investigated. Therefore, this work aimed to synthesize the MTX-naphthoquinoxaline metabolite (NAPHT) and to compare its cytotoxicity to the parent compound in 7-day differentiated H9c2 cells using pharmacological relevant concentrations (0.01-5 µM). MTX was more toxic in equivalent concentrations in all cytotoxicity tests performed [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide reduction, neutral red uptake, and lactate dehydrogenase release assays] and times tested (24 and 48 h). Both MTX and NAPHT significantly decreased mitochondrial membrane potential in 7-day differentiated H9c2 cells after a 12-h incubation. However, energetic pathways were affected in a different manner after MTX or NAPHT incubation. ATP increased and lactate levels decreased after a 24-h incubation with MTX, whereas for the same incubation time and concentrations, NAPHT did not cause any significant effect. The increased activity of ATP synthase seems responsible for MTX-induced increases in ATP levels, as oligomycin (an inhibitor of ATP synthase) abrogated this effect on 5 µM MTX-incubated cells. 3-Methyladenine (an autophagy inhibitor) was the only molecule to give a partial protection against the cytotoxicity produced by MTX or NAPHT. To the best of our knowledge, this was the first broad study on NAPHT cardiotoxicity, and it revealed that the parent drug, MTX, caused a higher disruption in the energetic pathways in a cardiac model in vitro, whereas autophagy is involved in the toxicity of both compounds. In conclusion, NAPHT is claimed to largely contribute to MTX-anticancer properties; therefore, this metabolite should be regarded as a good option for a safer anticancer therapy since it is less cardiotoxic than MTX.
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Ferreira A, Ponte F, Silva R, Pereira C, Sousa E, Pinto M, Bastos M, Remião F. 1-(Propan-2-ylamino)-4-propoxy-9h-thioxanthen-9-one (TX5), a newly synthetized P-glycoprotein activator: In vivo study and method development and validation for biological samples quantification. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.06.1681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Martins E, Silva R, Palmeira A, Sousa E, Carmo H, Pinto M, Bastos M, Remião F, Lemos A, Puthongking P. Hit optimization of newly synthetized xanthonic derivatives as P-gycoprotein modulators – In silico and in vitro studies. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.06.1709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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90
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Pimpinella M, Pinto M, Guerra A. Experimental determination of ionization chamber overall correction factor in medium-energy X-ray beams. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.07.258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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91
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Rominger MB, Müller-Stuler EM, Pinto M, Becker AS, Martini K, Frauenfelder T, Klingmüller V. Easy Pulsatile Phantom for Teaching and Validation of Flow Measurements in Ultrasound. Ultrasound Int Open 2016; 2:E93-7. [PMID: 27689183 PMCID: PMC5026039 DOI: 10.1055/s-0042-106396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 03/28/2016] [Indexed: 12/26/2022] Open
Abstract
PURPOSE To build a simple model to teach and validate non-pulsatile and pulsatile flow quantification in ultrasound. MATERIALS AND METHODS The setting consists of the following connected components: (1) medical syringe pump producing an adjustable constant flow (ml/min), (2) modulator modifying constant flow to a reproducible pulsatile flow, (3) water tank containing a diagonal running silicone tube (0.5 mm inner diameter), and (4) a fixated ultrasound probe (L9 Linear Array 9 MHz, GE Logiq E9) measuring the flow inside the tube. Commercially available microbubbles suspended with physiological saline solution were used for ultrasonic visibility. Spectral Doppler of different flow profiles is performed. RESULTS The syringe pump produces an adjustable, constant flow and serves as the reference standard. The filling volume of the tube system is 1.2 ml. Microbubbles are very well detected by ultrasound and can be used as an easy and clean blood mimicking substance. The modulator generates different physiological and pathological flow profiles. Velocities are similar to those found within human blood vessels. Thus, it is possible to train and validate flow measurements in ultrasound. CONCLUSION The model produces non-pulsatile and various pulsatile flow profiles and allows validation of flow measurements. The compact size permits easy and economic setup for flow measurements in research, skills lab and continuing education.
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Qin N, Pinto M, Tian Z, Dedes G, Pompos A, Jiang S, Parodi K, Jia X. SU-C-BRC-06: OpenCL-Based Cross-Platform Monte Carlo Simulation Package for Carbon Ion Therapy. Med Phys 2016. [DOI: 10.1118/1.4955553] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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93
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Pinto M, Miragaya M, Burns P, Douglas R, Neild D. Potential to reduce negative effects of exercise stress on number of pregnancies in a commercial embryo transfer program. J Equine Vet Sci 2016. [DOI: 10.1016/j.jevs.2016.04.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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94
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Pinto M, Pimpinella M, Quini M, D’Arienzo M, Astefanoaei I, Loreti S, Guerra AS. A graphite calorimeter for absolute measurements of absorbed dose to water: application in medium-energy x-ray filtered beams. Phys Med Biol 2016; 61:1738-64. [DOI: 10.1088/0031-9155/61/4/1738] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Pinto M, Pimpinella M, D'Arienzo M, Guerra A. Establishment at ENEA-INMRI of a new absorbed dose to water primary standard for medium-energy x-ray beams. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Neto M, Pinto M, Oliveira A, Padrão P, Moreira A, Moreira P. Hydration status and associated dietary factors in children. NUTR HOSP 2015; 32 Suppl 2:10324. [PMID: 26615294 DOI: 10.3305/nh.2015.32.sup2.10324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
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Bordy J, Andersen C, Ankerhold U, Dedieu V, Delaunay F, De Pooter J, Compell J, Duane S, Kapsch R, Kosunen A, Machula G, Marinelli M, Palmans H, Pimpinella M, Pinto M, Rinati GV, Solc J. An introduction to metrology for radiotherapy using complex radiation fields – HLT09 EMRP Project. Phys Med 2015. [DOI: 10.1016/j.ejmp.2015.10.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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98
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Pinto M, Pimpinella M, D'Arienzo M, Astefanoaei I, Loreti S, Quini M, Guerra A. A new graphite calorimeter for the measurement of absorbed dose to water in medium energy x-ray beams. Phys Med 2015. [DOI: 10.1016/j.ejmp.2015.10.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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99
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Reis-Mendes A, Gomes A, Carvalho R, Remião F, Carvalho F, Pinto M, Bastos M, Sousa E, Costa V. Unveiling the cardiotoxicity of anticancer drugs: A comparative in vitro study between mitoxantrone and its naphthoquinoxaline metabolite. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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100
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El Kanawati W, Létang JM, Dauvergne D, Pinto M, Sarrut D, Testa É, Freud N. Monte Carlo simulation of prompt γ-ray emission in proton therapy using a specific track length estimator. Phys Med Biol 2015; 60:8067-86. [PMID: 26425853 DOI: 10.1088/0031-9155/60/20/8067] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A Monte Carlo (MC) variance reduction technique is developed for prompt-γ emitters calculations in proton therapy. Prompt-γ emitted through nuclear fragmentation reactions and exiting the patient during proton therapy could play an important role to help monitoring the treatment. However, the estimation of the number and the energy of emitted prompt-γ per primary proton with MC simulations is a slow process. In order to estimate the local distribution of prompt-γ emission in a volume of interest for a given proton beam of the treatment plan, a MC variance reduction technique based on a specific track length estimator (TLE) has been developed. First an elemental database of prompt-γ emission spectra is established in the clinical energy range of incident protons for all elements in the composition of human tissues. This database of the prompt-γ spectra is built offline with high statistics. Regarding the implementation of the prompt-γ TLE MC tally, each proton deposits along its track the expectation of the prompt-γ spectra from the database according to the proton kinetic energy and the local material composition. A detailed statistical study shows that the relative efficiency mainly depends on the geometrical distribution of the track length. Benchmarking of the proposed prompt-γ TLE MC technique with respect to an analogous MC technique is carried out. A large relative efficiency gain is reported, ca. 10(5).
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