Maria do Carmo Lopes
Instituto Português de Oncologia Francisco Gentil
PhysicsMathematical optimizationInternal medicineBeam (structure)ChemistryMedical physicsRadiation treatment planningGliomaBeam angleNuclear medicineComputer scienceCancer researchRadiation therapyNitric oxideBiochemistryMedicineDosimetryBiologyCell biology
271Publications
39H-index
3,684Citations
Publications 255
Newest
#1P. Carrasqueira (UC: University of Coimbra)H-Index: 1
#2Maria João Alves (UC: University of Coimbra)H-Index: 15
Last. Maria do Carmo Lopes (UC: University of Coimbra)H-Index: 39
view all 7 authors...
Source
#1Tiago Ventura (University of Aveiro)H-Index: 7
#2Humberto Rocha (UC: University of Coimbra)H-Index: 12
Last. Maria do Carmo Lopes (UC: University of Coimbra)H-Index: 39
view all 5 authors...
Two methods for non-coplanar beam direction optimization, one for static beams and another for arc trajectories, were proposed for intracranial tumours. The results of the beam angle optimizations were compared with the beam directions used in the clinical plans. Ten meningioma cases already treated were selected for this retrospective planning study. Algorithms for non-coplanar beam angle optimization (BAO) and arc trajectory optimization (ATO) were used to generate the corresponding plans. A p...
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#2Joana DiasH-Index: 16
Last. Maria do Carmo LopesH-Index: 39
view all 7 authors...
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Source
#1Tania SantosH-Index: 4
#2Tiago VenturaH-Index: 7
Last. Maria do Carmo LopesH-Index: 39
view all 5 authors...
Source
#1P. Carrasqueira (UC: University of Coimbra)H-Index: 1
#2Humberto Rocha (UC: University of Coimbra)H-Index: 12
Last. Maria do Carmo Lopes (UC: University of Coimbra)H-Index: 39
view all 6 authors...
Source
#1Tania SantosH-Index: 4
#2Tiago VenturaH-Index: 7
Last. Maria do Carmo LopesH-Index: 39
view all 3 authors...
Abstract A dosimetry system composed by Gafchromic™ EBT films and a flatbed document scanner is a valuable tool for patient-specific quality assurance (QA) of complex external beam radiotherapy treatment plans. However, it is still not widely used in clinical practice. The need for a comprehensive characterization of the film-scanner performance and the establishment of a complex dosimetry protocol may be one of the causes of this weak adhesion. The purpose of this work is to shed light on how t...
Source
#1Tania Santos (UC: University of Coimbra)H-Index: 4
#2Tiago VenturaH-Index: 7
Last. Maria do Carmo LopesH-Index: 39
view all 5 authors...
Abstract Purpose To provide a practical protocol for absolute dose verification of stereotactic body radiotherapy (SBRT) and stereotactic radiosurgery (SRS) treatment plans, based on our clinical experience. It aims to be a concise summary of the main aspects to be considered when establishing an accurate film dosimetry system. Methods Procedures for film calibration and conversion to dose are described for a dosimetry system composed of Gafchromic™ EBT-XD films and a flatbed document scanner. F...
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#1Natália Alves (UC: University of Coimbra)
#2Joana Dias (UC: University of Coimbra)H-Index: 16
Last. Maria do Carmo Lopes (Instituto Português de Oncologia Francisco Gentil)H-Index: 39
view all 8 authors...
BACKGROUND: Unbiased analysis of the impact of adaptive radiotherapy (ART) is necessary to evaluate dosimetric benefit and optimize clinics’ workflows. The aim of the study was to assess the need for adaptive radiotherapy (ART) in head and neck (H&N) cancer patients using an automatic planning tool in a retrospective planning study. MATERIALS AND METHODS: Thirty HN 2) the optimized plan based on the verification CT (ART-plan); 3) the plan obtained by considering treatment plan 1 re-calculated in...
Source
#1Tiago VenturaH-Index: 7
#2Humberto RochaH-Index: 12
Last. Maria do Carmo LopesH-Index: 39
view all 5 authors...
Source
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