Comparison of CT fluoroscopy-guided manual and CT-guided robotic positioning system for in vivo needle placements in swine liver Journal Article
| Authors: | Cornelis, F.; Takaki, H.; Laskhmanan, M.; Durack, J. C.; Erinjeri, J. P.; Getrajdman, G. I.; Maybody, M.; Sofocleous, C. T.; Solomon, S. B.; Srimathveeravalli, G. |
| Article Title: | Comparison of CT fluoroscopy-guided manual and CT-guided robotic positioning system for in vivo needle placements in swine liver |
| Abstract: | Purpose: To compare CT fluoroscopy-guided manual and CT-guided robotic positioning system (RPS)-assisted needle placement by experienced IR physicians to targets in swine liver. Materials and Methods: Manual and RPS-assisted needle placement was performed by six experienced IR physicians to four 5 mm fiducial seeds placed in swine liver (n = 6). Placement performance was assessed for placement accuracy, procedure time, number of confirmatory scans, needle manipulations, and procedure radiation dose. Intra-modality difference in performance for each physician was assessed using paired t test. Inter-physician performance variation for each modality was analyzed using Kruskal–Wallis test. Results: Paired comparison of manual and RPS-assisted placements to a target by the same physician indicated accuracy outcomes was not statistically different (manual: 4.53 mm; RPS: 4.66 mm; p = 0.41), but manual placement resulted in higher total radiation dose (manual: 1075.77 mGy/cm; RPS: 636.4 mGy/cm; p = 0.03), required more confirmation scans (manual: 6.6; RPS: 1.6; p < 0.0001) and needle manipulations (manual: 4.6; RPS: 0.4; p < 0.0001). Procedure time for RPS was longer than manual placement (manual: 6.12 min; RPS: 9.7 min; p = 0.0003). Comparison of inter-physician performance during manual placement indicated significant differences in the time taken to complete placements (p = 0.008) and number of repositions (p = 0.04) but not in other study measures (p > 0.05). Comparison of inter-physician performance during RPS-assisted placement suggested statistically significant differences in procedure time (p = 0.02) and not in other study measures (p > 0.05). Conclusions: CT-guided RPS-assisted needle placement reduced radiation dose, number of confirmatory scans, and needle manipulations when compared to manual needle placement by experienced IR physicians, with equivalent accuracy. © 2014, Springer Science+Business Media New York and the Cardiovascular and Interventional Radiological Society of Europe (CIRSE). |
| Keywords: | controlled study; nonhuman; radiation dose; animal tissue; computer assisted tomography; animal experiment; in vivo study; radiation exposure; physician; intermethod comparison; robotics; biopsy needle; pig; digital imaging and communications in medicine; fluoroscopy; hepatography; navigation system; image guided biopsy; image-guided biopsy; measurement accuracy; female; priority journal; article; needle placement; robotic guidance; breathing frequency monitor; radiography device; robotic positioning system |
| Journal Title: | CardioVascular and Interventional Radiology |
| Volume: | 38 |
| Issue: | 5 |
| ISSN: | 0174-1551 |
| Publisher: | Springer |
| Date Published: | 2015-10-01 |
| Start Page: | 1252 |
| End Page: | 1260 |
| Language: | English |
| DOI: | 10.1007/s00270-014-1016-9 |
| PROVIDER: | scopus |
| PUBMED: | 25376924 |
| PMCID: | PMC5482420 |
| DOI/URL: | |
| Notes: | Export Date: 2 October 2015 -- Source: Scopus |
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118Getrajdman -
98Maybody -
425Solomon -
203Erinjeri -
247Sofocleous -
116Durack -
7Takaki -
81Cornelis
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