Gold seed fiducial markers for prostate radiation therapy: Describing prostate motion

Prostate MRS in the presence of gold seed fiducial markers

MR Spectroscopy (MRS) has great potential for guiding radiotherapy of prostate cancer by identifying bulky and/or high grade tumors suitable for dose escalation (1,2). However, image guided therapy typically employs permanently implanted gold seed fiducial markers (GSFM), which aid in daily prostate localization prior to treatment. The impact of these gold seed markers on the quality of MRS is ...

Dose Perturbations of Gold Fiducial Markers in the Prostate Cancer Intensity Modulated Proton Radiation Therapy (IMPT)

The objective of this study is to investigate the dose perturbations introduced by the implanted gold fiducial markers in the prostate cancer intensity modulated proton therapy (IMPT) and the impacts of different plan designs on the perturbations. Five proton plans: a single lateral field 3D-modulation (3D-mod) plan, 2 fields laterally opposing 3D-mod plan, 6-, 9-, and 18-field distal edge trac...

insertion of intraprostate gold fiducial markers in prostate cancer treatment

Assessment of motion and field placement verification of the prostate using gold seed fiducial markers: a feasibility study

Purpose: The aim of this study was to determine the feasibility of using gold seed fiducial markers within the daily treatment of prostate cancer patients as a means of improving treatment field placement accuracy and minimising the effect of interfractional prostate movement. Methods: Ten patients had three fiducial markers inserted into the prostate gland under ultrasound guidance. Daily veri...

Prostate cancer: precision of integrating functional MR imaging with radiation therapy treatment by using fiducial gold markers.

The use of intensity-modulated radiation therapy for treatment of dominant intraprostatic lesions may require integration of functional magnetic resonance (MR) imaging with treatment-planning computed tomography (CT). The purpose of this study was to compare prospectively the landmark and iterative closest point methods for registration of CT and MR images of the prostate gland after placement ...