Miami Cancer Institute

vibha chaswal chaswal medical imaging radiation therapy clinical reference dosimetry tg-51 ion chamber image guided radiation therapy igrt x-ray computed tomography snr radiotherapy acceptance brachytherapy cervical brachytherapy brachytherapy treatment planning intracavitary mri brachytherapy hdr prostate interstitial cervical brachytherapy brachytherapy review mri brachytherapy prostate brachytherapy ldr mvcbct image quality tests radiotherapy imaging geometric accuracy therapy imaging cbct calibration cbct atp mvcbct calibration conebeam ct mvcbct atp mvcbct cbct megavoltage conebeam ct ion chamber commissioning dosimetry ptw ion chamber radiation therapy qa linac qa hand mu calculations mu dose calculation tg-51 photon calibration mu calcs electron calibration monitor unit calculation tpr stem effect mosfet diode reference dosimetry siemens oncor linac qa epid alignment epid snr mtf head and neck rt qc-3v radiotherapy delivery cnr epid cnr thoracic radiation treatment contrast imaging parameters pelvis radiation whole brain rt epid qa verification imaging qc-3v phantom pulse sequence echo time motion artifact distortion artifacts chemical shift distortion susceptibility partial volume imaging slice overlap wraparound mr flow artifact image distortion mri artifacts magnetic resonance imaging peripheral signal blurring magic angle true counts spatial resolution pet limitations of pet pet positron emission tomography functional imaging pet imaging pet noise image registration algorithm fusion joint entropy rigid registration mi maximization rigid body registration mutual information algorithm mi algorithm information theory medical image fusion geometric transformations image registration merge signal-to-noise raio x-ray spatial resolution x-ray image mas hounsfield unit digital imaging ct number noise contrast sensitivity kvp digital radiography resolution image contrast rt simulation treatment simulation simulation electron beam model electron beam validation beam validation tps commissioning photon beam validation beam commissioning tps modeling photon beam model iort special procedures tset tbi frame based srs srs stereotactic radiosurgery frame less srs hidden target test srs floor stand qa end to end srs qa radiocam hdr suite shielding design radiation shielding linear accelerator room design annual qa linear accelerator commissioning arccheck evaluation volumetric dose verification vmat qa arccheck qa 3d diode array phantom arccheck commissioning