Publications by authors named "Amber Fryer"
Image guidance based on prostate position for prostate cancer proton therapy.
Int J Radiat Oncol Biol Phys
August 2008
Purpose: To determine the target coverage for proton therapy with and without image guidance and daily prebeam reorientation.
Methods And Materials: A total of 207 prostate positions were analyzed for 9 prostate cancer patients treated using our low-risk prostate proton therapy protocol (University of Florida Proton Therapy Institute 001). The planning target volume was defined as the prostate plus a 5-mm axial and 8-mm superoinferior extension.
Purpose: To determine the impact of prostate motion on dose coverage in proton therapy.
Methods And Materials: A total of 120 prostate positions were analyzed on 10 treatment plans for 10 prostate patients treated using our low-risk proton therapy prostate protocol (University of Florida Proton Therapy Institute 001). Computed tomography and magnetic resonance imaging T(2)-weighted turbo spin-echo scans were registered for all cases.
Purpose: To describe dose-volume values with the use of water alone vs. a rectal balloon (RB) for the treatment of prostate cancer with proton therapy.
Materials And Methods: We analyzed 30 proton plans for 15 patients who underwent CT and MRI scans with an RB or water alone.
Dose-volume comparison of proton therapy and intensity-modulated radiotherapy for prostate cancer.
Int J Radiat Oncol Biol Phys
March 2008
Purpose: The contrast in dose distribution between proton radiotherapy (RT) and intensity-modulated RT (IMRT) is unclear, particularly in regard to critical structures such as the rectum and bladder.
Methods And Materials: Between August and November 2006, the first 10 consecutive patients treated in our Phase II low-risk prostate proton protocol (University of Florida Proton Therapy Institute protocol 0001) were reviewed. The double-scatter proton beam plans used in treatment were analyzed for various dosimetric endpoints.