کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1759646 1019288 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Vibro-acoustography imaging of permanent prostate brachytherapy seeds in an excised human prostate – Preliminary results and technical feasibility
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم آکوستیک و فرا صوت
پیش نمایش صفحه اول مقاله
Vibro-acoustography imaging of permanent prostate brachytherapy seeds in an excised human prostate – Preliminary results and technical feasibility
چکیده انگلیسی

Objective:The objective in this work is to investigate the feasibility of using a new imaging tool called vibro-acoustography (VA) as a means of permanent prostate brachytherapy (PPB) seed localization to facilitate post-implant dosimetry (PID).Methods and materials:Twelve OncoSeed (standard) and eleven EchoSeed (echogenic) dummy seeds were implanted in a human cadaver prostate. Seventeen seeds remained after radical retropubic prostatectomy. VA imaging was conducted on the prostate that was cast in a gel phantom and placed in a tank of degassed water. 2-D magnitude and phase VA image slices were obtained at different depths within the prostate showing location and orientation of the seeds.Results:VA demonstrates that twelve of seventeen (71%) seeds implanted were visible in the VA image, and the remainder were obscured by intra-prostatic calcifications. Moreover, it is shown here that VA is capable of imaging and locating PPB seeds within the prostate independent of seed orientation, and the resulting images are speckle free.Conclusion:The results presented in this research show that VA allows seed detection within a human prostate regardless of their orientation, as well as imaging intra-prostatic calcifications.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasonics - Volume 49, Issue 3, March 2009, Pages 389–394
نویسندگان
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