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Full-Text Articles in Biomedical Engineering and Bioengineering
Image-Based Registration Methods For Quantification And Compensation Of Prostate Motion During Trans-Rectal Ultrasound (Trus)-Guided Biopsy, Tharindu De Silva
Image-Based Registration Methods For Quantification And Compensation Of Prostate Motion During Trans-Rectal Ultrasound (Trus)-Guided Biopsy, Tharindu De Silva
Electronic Thesis and Dissertation Repository
Prostate biopsy is the clinical standard for cancer diagnosis and is typically performed under two-dimensional (2D) transrectal ultrasound (TRUS) for needle guidance. Unfortunately, most early stage prostate cancers are not visible on ultrasound and the procedure suffers from high false negative rates due to the lack of visible targets. Fusion of pre-biopsy MRI to 3D TRUS for targeted biopsy could improve cancer detection rates and volume of tumor sampled. In MRI-TRUS fusion biopsy systems, patient or prostate motion during the procedure causes misalignments in the MR targets mapped to the live 2D TRUS images, limiting the targeting accuracy of the …
Mr To Ultrasound Registration For Image-Guided Prostate Biopsy, Yue Sun
Mr To Ultrasound Registration For Image-Guided Prostate Biopsy, Yue Sun
Electronic Thesis and Dissertation Repository
Transrectal ultrasound (TRUS) guided prostate biopsy is the standard approach for diagnosis of prostate cancer (PCa). However, due to the lack of image contrast of prostate tumors, it often results in false negatives. Magnetic Resonance Imaging (MRI) has been considered to be a promising imaging modality for noninvasive identification of PCa, since it can provide a high sensitivity and specificity for the detection of early stage PCa. Our main objective is to develop a registration method of 3D MR-TRUS images, allowing generation of volumetric 3D maps of targets identified in 3D MR images to be biopsied using 3D TRUS images. …