Accession Number : ADA599545


Title :   Improved Image-Guided Laparoscopic Prostatectomy


Descriptive Note : Annual summary rept. 15 Jul 2010-14 Apr 2013


Corporate Author : JOHNS HOPKINS UNIV BALTIMORE MD


Personal Author(s) : Fleming, Ioana


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a599545.pdf


Report Date : Jul 2013


Pagination or Media Count : 177


Abstract : Laparoscopic ultrasound probe has been integrated with the daVinci robotical surgical system. The new integrated system has been tested on tissue mimicking phantoms. Automatic robotic-assisted palpation has been designed, implemented and tested. Two studies have been completed: 1) ex-vivo prostate specimens using standard ultrasound probe as surrogate LAPUS probe and 2) comparative elastography study of LAPUS and TRUS probes on modified prostate elastography phantoms. Results show elastography with LAPUS has the potential to detect prostate cancer through direct interrogation techniques, but there are concerns about probe manipulation due to its size. Advanced 2D and 3D elastography algorithms improve robustness, ability to overcome decorrelated areas. They have been tested and validated on tissue mimicking phantoms, prostate ex-vivo specimens and in-vivo porcine ablated tissue. A robust iterative motion compensation algorithm for strain induced thermal imaging has been developed and it is described. The algorithm was validated on ex-vivo ablated tissue phantoms.


Descriptors :   *PROBES , *PROSTATE CANCER , IN VIVO ANALYSIS , INTEGRATED SYSTEMS , INTERROGATION , PROSTATE GLAND , SWINE , ULTRASONICS


Subject Categories : Medicine and Medical Research


Distribution Statement : APPROVED FOR PUBLIC RELEASE