insertion of intraprostate gold fiducial markers in prostate cancer treatment
نویسندگان
چکیده
منابع مشابه
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 ...
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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...
متن کاملProstate 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 ...
متن کاملRegistration free automatic identification of gold fiducial markers in MRI target delineation images for prostate radiotherapy.
PURPOSE The superior soft tissue contrast of magnetic resonance imaging (MRI) compared to computed tomography (CT) has urged the integration of MRI and elimination of CT in radiotherapy treatment (RT) for prostate. An intraprostatic gold fiducial marker (GFM) appears hyperintense on CT. On T2-weighted (T2w) MRI target delineation images, the GFM appear as a small signal void similar to calcific...
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PURPOSE High intensity focused ultrasound (HIFU) provides a non-invasive salvage treatment option for patients with recurrence after external beam radiation therapy (EBRT). As part of EBRT the prostate is frequently implanted with permanent fiducial markers. To date, the impact of these markers on subsequent HIFU treatment is unknown. The objective of this work was to systematically investigate...
متن کاملAccuracy of the dose delivery in prostate cancer patients-using an electronic portal imaging device (EPID)
Background: To correct patient positioning errors (setup errors) during prostate cancer treatment using EPID and fiducial gold markers, to improve the accuracy of the dose delivery in these patients. Materials and Methods: Fifteen patients with localized prostate carcinoma after implantation of fiducial gold markers in their prostate gland underwent the five-field IMRT planning technique. The p...
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عنوان ژورنال:
nephro-urology monthlyجلد ۲۰۱۶، شماره ۱۱، صفحات ۲۶۵-۲۷۲
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