Surgery Analyser

Analysis of the instrument tip track

Report: Good-Schweinefu__Einzelknopfnaht.mp4

Review

Please rate the video according the ongoing criteria. For more info hover over the criteria.

Video (1st stitch)
Results
Global Rating Scale
: Respect for tissue
: Time and movements
: Instrument handling
: Procedure flow
Global Assessment
: Global Assessment

Stitch 1

AI movement evaluation: ★★★☆☆

AI movement evaluation: 72%

Personalized suggestions based on Stitch duration, Needle holder trajectory length and Sudden moves count

  • Try to make your movements more smooth and precise. The stitch duration is too long.
  • Try to keep your instruments closer to the incision to avoid unnecessary large movements. The needle holder visibility is too low. The forceps visibility in area around stitch is too low.

Stitch duration [s]

  • The dotted line represents your time for the stitch being analyzed. If the line is green (below 60 seconds), your time is good. If it is yellow (between 60 and 90 seconds), your time is acceptable. If it is red (above 90 seconds), your time is too slow.
  • The red graph below represents the distribution of time needed by experts for one stitch.
  • The red histogram shows the number of stitches performed by experts that took the given time indicated on the x-axis.
  • The blue graph represents the distribution of time needed by learners.
  • The blue histogram shows the number of stitches performed by learners that took the given time indicated on the x-axis.
  • If your time is significantly higher than the expert times, consider what may have caused the delay:
    • Did you successfully hit the skin penetration point on the first attempt? If not, try focusing on the target point with your eye before starting the movement.
    • Was the needle easy to pass through? If not, check whether it was correctly positioned in the needle holder.
    • Did the needle exit on the intended incision plane on the first attempt? If not, ensure you visually align with the desired exit point before starting the motion.
Moderate
  • Observation: Your stitch duration is somewhat longer than expert-level timing, placing you in the yellow performance range.
  • Recommendation: Aim to refine your technique and decision-making to improve efficiency. Regular practice on simulation models can help develop muscle memory and enhance your speed.

Needle holder path length

Appropriate
  • Observation: The path length of your needle holder is very similar to expert-level performance and falls within the green zone.
  • Recommendation: Keep practicing to maintain this level of control. Concentrate on repeating this movement length consistently to support reliable performance.

Needle holder jerk index

Appropriate
  • Observation: The number of sudden or abrupt needle holder movements is similar to expert-level performance and falls within the green zone.
  • Recommendation: Keep practicing to sustain this balance of speed and control. Aim to consistently reproduce this movement quality to maintain precision and efficiency.

Needle holder movement heatmap

  • The heat map represents the projection of the needle holder movement during the process of stitching on the pig foot
    • Above 85% frequency is considered optimal (green).
    • Between 70% and 85% is considered acceptable but could be improved (yellow).
    • Below 70% is considered not ideal (red).
  • If your needle holder positioning differs significantly from expert patterns, consider working on these:
    • Ensure that the needle holder remains close to the incision to maintain control and precision.
    • Avoid excessive movement or unnecessary repositioning to improve efficiency and consistency.
    • Practice smooth and controlled handling to keep the needle holder within the optimal range (green circle) throughout the stitching process.
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Stitch 2

AI movement evaluation: ★★★☆☆

AI movement evaluation: 66%

Personalized suggestions based on Stitch duration, Needle holder trajectory length and Sudden moves count

  • Try to make your movements more smooth and precise. The stitch duration is too long.
  • Try to keep your instruments closer to the incision to avoid unnecessary large movements. The needle holder trajectory length is too long. The needle holder visibility is too low.

Stitch duration [s]

  • The dotted line represents your time for the stitch being analyzed. If the line is green (below 60 seconds), your time is good. If it is yellow (between 60 and 90 seconds), your time is acceptable. If it is red (above 90 seconds), your time is too slow.
  • The red graph below represents the distribution of time needed by experts for one stitch.
  • The red histogram shows the number of stitches performed by experts that took the given time indicated on the x-axis.
  • The blue graph represents the distribution of time needed by learners.
  • The blue histogram shows the number of stitches performed by learners that took the given time indicated on the x-axis.
  • If your time is significantly higher than the expert times, consider what may have caused the delay:
    • Did you successfully hit the skin penetration point on the first attempt? If not, try focusing on the target point with your eye before starting the movement.
    • Was the needle easy to pass through? If not, check whether it was correctly positioned in the needle holder.
    • Did the needle exit on the intended incision plane on the first attempt? If not, ensure you visually align with the desired exit point before starting the motion.
Moderate
  • Observation: Your stitch time is a bit longer than the expert’s, but still falls within the yellow zone.
  • Recommendation: Work on making your movements more efficient and decisive. Practicing on simulation materials can help you build muscle memory and improve your speed.

Needle holder path length

Appropriate
  • Observation: The distance your needle holder travels closely matches expert-level performance and falls within the green zone.
  • Recommendation: Keep practicing to preserve this level of efficiency. Concentrate on consistently reproducing this movement range to maintain precision and control.

Needle holder jerk index

Appropriate
  • Observation: The count of the needle holder’s sudden movements is close to the expert level, within the green zone.
  • Recommendation: Continue practicing to maintain this level of speed and control. Focus on replicating this velocity to ensure consistent performance.

Needle holder movement heatmap

  • The heat map represents the projection of the needle holder movement during the process of stitching on the pig foot
    • Above 85% frequency is considered optimal (green).
    • Between 70% and 85% is considered acceptable but could be improved (yellow).
    • Below 70% is considered not ideal (red).
  • If your needle holder positioning differs significantly from expert patterns, consider working on these:
    • Ensure that the needle holder remains close to the incision to maintain control and precision.
    • Avoid excessive movement or unnecessary repositioning to improve efficiency and consistency.
    • Practice smooth and controlled handling to keep the needle holder within the optimal range (green circle) throughout the stitching process.
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