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ICSAD: Imperial College Surgical Assessment Device
Objective assessment of surgical dexterity
Dept of Surgical Oncology and Technology, Imperial College of Science Technology and Medicine, London, UK
ICSAD
Department of Surgical Oncology and Technology
Imperial College, London
• Commercially available motion tracking system (Isotrak II, Polhemus, USA)
• Signal generator (A) and two sensors (B) on the surgeon’s hands
A
B
Bespoke software:
‘Track 3D’- retrieves Cartesian positional data-x,y and z co-ordinates
‘Track’- positional data to dexterity measures Path length- economy of movement
Number of movements
Time taken
Speed
Department of Surgical Oncology and Technology
Imperial College, London
ICSAD
Department of Surgical Oncology and Technology
Imperial College, London
Validation of ICSAD-Lap suturing
8973N =
Groups
4321
Pa
th le
ng
th (
cm)
20000
10000
0
-10000
P= 0.009
1-experts
2- skilled
3- lap skills, knowledge
4- no lap skills, knowledge
Department of Surgical Oncology and Technology
Imperial College, London
Validation of ICSAD
N =
EXPERIENCE CODE
EDCBA
MO
VE
ME
NT
S B
OW
EL
3000
2000
1000
0 11111212N =
EXPERIENCE CODE
CONSULTANTSEN SPRJUN SPRSHO
NO
OF
MO
VE
ME
NT
S
3000
2000
1000
0
124
17
34
13
25
Department of Surgical Oncology and Technology
Imperial College, London
Correlation of motion analysis with qualitative assessment- OSATS
Department of Surgical Oncology and Technology
Imperial College, London
For small bowel anastomosis
N =
EXPERIENCE CODE
EDCBA
MO
VE
ME
NT
S B
OW
EL
3000
2000
1000
0 11111212N =
EXPERIENCE CODE
CONSULTANTSEN SPRJUN SPRSHO
NO
OF
MO
VE
ME
NT
S
3000
2000
1000
0
124
17
34
13
25
11111212N =
EXPERIENCE CODE
CONSULTANTSEN SPRJUN SPRSHO
GLO
BA
L S
CO
RE
40
30
20
10
18
38
20
19
Spearman correlation= -0.71, p<0.001
Department of Surgical Oncology and Technology
Imperial College, London
Correlation of motion analysis with qualitative assessment- Laparoscopic suturing
8973N =
Groups
4321
Pa
th le
ng
th (
cm)
20000
10000
0
-10000
8973N =
4.003.002.001.00
25
po
int
che
ck-l
ist
30
20
10
0
Spearman’s co-efficient: - 0.70, p<0.001
Department of Surgical Oncology and Technology
Imperial College, London
ICSAD- Training
Motion data of experts- standard for trainees
Provide objective feedback
Department of Surgical Oncology and Technology
Imperial College, London
Department of Surgical Oncology and Technology
Imperial College, London
Department of Surgical Oncology and Technology
Imperial College, London
ROVIMAS (Robotic Video Motion Analysis Software):
Department of Surgical Oncology and Technology
Imperial College, London
ACKNOWLEDGEMENTS
N Taffinder, A Wan, S Smith, J Torkington, T Brown, V Datta, S Bann, J Shah, S Mackay, Y Munz, A Dosis, A Chang, C Sutton, Prof Guang Zhong Yang, Dr. D. Gillies, Dr. F. Bello, Professor A Darzi
