Minireviews
Copyright ©The Author(s) 2017.
World J Gastrointest Endosc. Aug 16, 2017; 9(8): 368-377
Published online Aug 16, 2017. doi: 10.4253/wjge.v9.i8.368
Table 1 Single channelled scopes
Ref.YearProjection system for 3DWho and what assessedObjective outcomesSubjective outcomes
McDougall et al[6]1996Active shuttering screen and glasses22 urological and gynaecological surgeons, non-novice Pig-lab, laparoscopic vessel dissection and securing, suturing and knot tyingTime for completion. No significant difference found3D not felt to enhance image quality or enhance performance. Blurred vision and eye fatigue with 3D
Dion et al[7]1997Active shuttering screen and glassesSurgeons and non-surgeons. Lab visual (n = 8) and motor skills (n = 9)Time and errors. Improvement in both with 3DGlasses bothersome and dizziness reported
Chan et al[8]1997Active shuttering screen and glasses32 surgeons, 11 with and 21 without laparoscopic experience 1 × lab based skills taskTime for completion in 2D and 3D (1 repetition). No significant difference50% felt no improved performance although 66% felt depth perception improved 40% felt reduced image quality and dimmer; 10% reported dizziness and eyestrain
Hanna et al[9]1998Active shuttering screen and glasses (A/S)4 surgical SpRs performing 60 laparoscopic cholecystectomiesTime for completion and errors No significant differenceVisual strain, headache and facial discomfort with 3D system
Mueller et al[10]1999Active shuttering screen and glasses30 subjects (10 with and 20 without laparoscopic experience) 4 × lab based skills tasks for all, then experienced did suturing tasksTime for attempts, and success/failure of attempt No significant differenceReported loss of concentration, headaches and distraction with 3D system
Herron et al[11]19993D (active shuttering screen and glasses) and 3D HMD50 laparoscopic novices 3 × lab based skills tasksTime to completion of 3 skills tasks in each visual system (2 × repitions) No significant differenceAlthough 48% preferred 3D A/S screen over all, 7% and 25% respectively reported headaches with 3D screen and 3D HMD. 82% found HMD uncomfortable
Mueller-Richter et al[12]20033D (active shuttering screen and polarising glasses) and 3D Autostereoscopic screen59 laparoscopic novices 3 × lab based skills tasksNumber of completions in time limit and subjective difficulty No significant differenceFlickering reported with both 3D systems
Bhayani et al[13]2005HMD24 surgical residents, minimal laparoscopic experience. 1 × lab based skills taskTime for completion in 2D and 3D (1 repetition) Significant reduction in time> 50% preferred the 3D system and found task easier in 3D No subjective assessment on physical symptoms
Patel et al[14]2007HMD15 novices and 2 experts 5 × lab based skills tasksTime and accuracy in 2D and 3D (1 repetition) of the novices compared to the experts Significant difference in both for novices only in 3DNA
Bittner et al[15]2008HMD2 novices, 2 intermediate and 2 experts 2 × lab based suturing tasks (based on handedness, visual system and articulating needle holder)Time and accuracy in 2D and 3D (multi repetitions with each variable) No significant difference83% felt improved depth perception. No reported physical symptoms
Votanopoulos et al[16]2008HMD36 surgical residents and medical students (11 with and 25 without laparoscopic experience) 6 × lab based skills tasks (rpt 3/12 later)Time and errors in 2D and 3D (1 repetition) Significant improvement in time and errors in novice group onlyNA
Kong et al[17]2009Passive polarising screen and glasses21 novices and 6 experienced surgeons 2 × lab based skills tasksTime and errors in 2D and 3D (4 repetitions of each over 4 d) Significant reduction in errors in 3D novices, no other significant difference notedDizziness and eye fatigue in novice with 3D system which improved with time
Mistry et al[18]2013Passive polarising screen and glasses31 medical students (novices) 4 × lab based skills tasks (MISTELS)Task Performance in 2D and 3D as per MISTELS scoring system No significant differenceNo detrimental symptoms with 3D