Maria De Ornelas, Ph.D., DABR

Assistant Professor at Sylvester Comprehensive Cancer Center
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Contact Information
us****@****om
(386) 825-5501
Location
Miami-Fort Lauderdale Area

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Experience

    • United States
    • Hospitals and Health Care
    • 300 - 400 Employee
    • Assistant Professor
      • Aug 2020 - Present

    • United States
    • Hospitals and Health Care
    • 300 - 400 Employee
    • Medical Physics Resident
      • Jul 2018 - Jun 2020

      External beam treatment planning and delivery o Treatment planning systems: Eclipse and GammaPlan. o Treatment modalities: 3D conformal, IMRT, VMAT, SRS, SBRT and Proton. o Sites covered: central nervous system, head and neck, breast and chestwall, lung, skin, sarcoma, prostate, gastrointestinal, and lymphomas. Brachytherapy o Treatment planning using Oncentra. o Source exchange and QA for Nucleotron Microselectron afterloader. o LDR permanent seed prostate implants using Oncentra Prostate. o CIVA sheet post-implant dosimetry. o Eye plaque treatment planning. o Accelerated Partial Breast Irradiation IORT. Imaging o Rigid and deformable image registration using Eclipse TPS and MIM Software. o 4DCT for ITV creation. o Imaging modalities: MRI, PET and CT. Commissioning and QA o Participated in the commissioning of a TrueBeam. o Beam modeling in Eclipse. o EPID calibration, baseline and PDIP modeling. o Periodic (Daily, Monthly and Annual) QA linac and CT sim. o IMRT QA using SunNuclear ArcCheck and Portal Dosimetry. Special Procedures o Total skin electron therapy o Total body irradiation Show less

    • United States
    • Higher Education
    • 700 & Above Employee
    • Research Assistant
      • Aug 2013 - May 2018

      • Determined that linear accelerator delivered volumetric modulated arc plans are comparable to CyberKnife plans for spine stereotactic body radiotherapy. Concluded that linear accelerator plans could provide the special procedure with shorter treatment times. • Investigated the best constant dose rate delivery for prostate and head-and-neck cases using volumetric arc therapy with linacs without the variable dose capability upgrade. • Found that energy-based inverse optimization, which includes electron density information to the objective function with the goal of minimizing energy deposited in the normal volumes, is more sensitive to changes in intensity-modulated segment parameters compared to the standard dose-volume-based inverse optimization. • Concluded that changes in inverse optimized plans with density-inclusion: energy-based and dose-mass-based, are equally as sensitive as dose-volume-based plans to changes in head-and-neck anatomy during radiotherapy treatment. • Investigated the inclusion of electron density information into the equivalent uniform dose formulation and used normal tissue complication probability modeling to determine the differences to the standard equivalent uniform dose. • Became proficient at using Pinnacle treatment planning systems for research projects. • Utilized Excel and MATLAB for data modeling and data presentation. Show less

    • United States
    • Education Administration Programs
    • 700 & Above Employee
    • Physics Teacher
      • Jan 2012 - Nov 2012

      • Planned course material and teaching approach to pertaining topic. • Successfully adjusted teaching modalities according to student’s needs. • Planned course material and teaching approach to pertaining topic. • Successfully adjusted teaching modalities according to student’s needs.

    • United States
    • Higher Education
    • 700 & Above Employee
    • Research Associate
      • May 2008 - Jan 2011

      The Miami Project to Cure Paralysis Neuromotor Rehabilitation Laboratory • Developed a MATLAB script to analyze collected electromyography data of gait patterns for therapeutic training assessment. • Programmed a GUI to quantify upper extremity motor agility for a study using transcranial direct current stimulation. • Gained valuable experience in working in a multi-disciplinary team of physical therapists, researchers, and engineers. • Worked with spinal cord injured patients in therapeutic training and pre- and post-training assessments. Show less

Education

  • University of Miami
    Doctor of Philosophy - PhD, Biomedical Engineering/Medical Physcis
    2013 - 2018
  • University of Miami
    MS, Biomedical/Medical Engineering
    2008 - 2011
  • University of Miami
    Bachelor of Science - BS, Biomedical/Medical Engineering
    2004 - 2008

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