Abstract
Background: Telestration is an important teaching tool in minimally invasive surgery (MIS). While robotic surgery offers the added benefit of three-dimensional (3-D) visualization, telestration technology does not currently exist for this modality. This project aimed to develop a video algorithm to accurately translate a mentor's two-dimensional (2-D) telestration into a 3-D telestration in the da Vinci visual field. Materials and Methods: A prototype 3-D telestration system was constructed to translate 2-D telestration from a mentor station into 3-D graphics for the trainee at the robotic console. This system uses fast image correlation algorithms to allow 2-D images to be placed over the same anatomic location in the two separate video channels of the stereoscopic robotic visualization system. Three subjects of varying surgical backgrounds, blinded to the mode of telestration (2-D vs. 3-D), were tested in the laboratory, using a simulated robotic task. Results: There were few technologic errors (2), only one of which resulted in a task error, in 99 total trials. Only the experienced MIS staff surgeon had a significantly faster task time in 2-D than in 3-D (P < 0.05). The MIS fellow recorded the fastest task times in 2-D and 3-D (P < 0.05). There were nine task errors, six of which were committed by the MIS fellow. The nonsurgeon trainee had the least number of errors but also had the slowest times. Conclusions: Robotic telestration in 3-D is feasible and does not negatively impact performance in laboratory tasks. We plan to refine the prototype and investigate its use in vivo.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 107-112 |
| Number of pages | 6 |
| Journal | Journal of Laparoendoscopic and Advanced Surgical Techniques |
| Volume | 18 |
| Issue number | 1 |
| DOIs | |
| State | Published - Feb 1 2008 |
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ASJC Scopus subject areas
- Surgery
Cite this
3-D telestration : A teaching tool for robotic surgery. / Ali, Mohamed R; Loggins, Jamie P.; Fuller, William D.; Miller, Brian E.; Hasser, Christopher J.; Yellowlees, Peter Mackinlay; Vidovszky, Tamas J; Rasmussen, Jason J.; Pierce, Jonathan L.
In: Journal of Laparoendoscopic and Advanced Surgical Techniques, Vol. 18, No. 1, 01.02.2008, p. 107-112.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - 3-D telestration
T2 - A teaching tool for robotic surgery
AU - Ali, Mohamed R
AU - Loggins, Jamie P.
AU - Fuller, William D.
AU - Miller, Brian E.
AU - Hasser, Christopher J.
AU - Yellowlees, Peter Mackinlay
AU - Vidovszky, Tamas J
AU - Rasmussen, Jason J.
AU - Pierce, Jonathan L
PY - 2008/2/1
Y1 - 2008/2/1
N2 - Background: Telestration is an important teaching tool in minimally invasive surgery (MIS). While robotic surgery offers the added benefit of three-dimensional (3-D) visualization, telestration technology does not currently exist for this modality. This project aimed to develop a video algorithm to accurately translate a mentor's two-dimensional (2-D) telestration into a 3-D telestration in the da Vinci visual field. Materials and Methods: A prototype 3-D telestration system was constructed to translate 2-D telestration from a mentor station into 3-D graphics for the trainee at the robotic console. This system uses fast image correlation algorithms to allow 2-D images to be placed over the same anatomic location in the two separate video channels of the stereoscopic robotic visualization system. Three subjects of varying surgical backgrounds, blinded to the mode of telestration (2-D vs. 3-D), were tested in the laboratory, using a simulated robotic task. Results: There were few technologic errors (2), only one of which resulted in a task error, in 99 total trials. Only the experienced MIS staff surgeon had a significantly faster task time in 2-D than in 3-D (P < 0.05). The MIS fellow recorded the fastest task times in 2-D and 3-D (P < 0.05). There were nine task errors, six of which were committed by the MIS fellow. The nonsurgeon trainee had the least number of errors but also had the slowest times. Conclusions: Robotic telestration in 3-D is feasible and does not negatively impact performance in laboratory tasks. We plan to refine the prototype and investigate its use in vivo.
AB - Background: Telestration is an important teaching tool in minimally invasive surgery (MIS). While robotic surgery offers the added benefit of three-dimensional (3-D) visualization, telestration technology does not currently exist for this modality. This project aimed to develop a video algorithm to accurately translate a mentor's two-dimensional (2-D) telestration into a 3-D telestration in the da Vinci visual field. Materials and Methods: A prototype 3-D telestration system was constructed to translate 2-D telestration from a mentor station into 3-D graphics for the trainee at the robotic console. This system uses fast image correlation algorithms to allow 2-D images to be placed over the same anatomic location in the two separate video channels of the stereoscopic robotic visualization system. Three subjects of varying surgical backgrounds, blinded to the mode of telestration (2-D vs. 3-D), were tested in the laboratory, using a simulated robotic task. Results: There were few technologic errors (2), only one of which resulted in a task error, in 99 total trials. Only the experienced MIS staff surgeon had a significantly faster task time in 2-D than in 3-D (P < 0.05). The MIS fellow recorded the fastest task times in 2-D and 3-D (P < 0.05). There were nine task errors, six of which were committed by the MIS fellow. The nonsurgeon trainee had the least number of errors but also had the slowest times. Conclusions: Robotic telestration in 3-D is feasible and does not negatively impact performance in laboratory tasks. We plan to refine the prototype and investigate its use in vivo.
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UR - http://www.scopus.com/inward/citedby.url?scp=39149139627&partnerID=8YFLogxK
U2 - 10.1089/lap.2007.0051
DO - 10.1089/lap.2007.0051
M3 - Article
VL - 18
SP - 107
EP - 112
JO - Journal of Laparoendoscopic and Advanced Surgical Techniques
JF - Journal of Laparoendoscopic and Advanced Surgical Techniques
SN - 1092-6429
IS - 1
ER -