Page 102 - JSOM Fall 2025

SUPPLEMENTAL TABLE 1 Objective Structured Assessment of Technical Skills (OSATS) Adjusted for Ultrasound Procedure
General
Number participant:
Total time procedure (min:s):
Difficulty of case
How technically difficult was this case based on the patient’s anatomy and disease process?
0 1 2 3 4 5
Unable to assess Minimally difficult Moderately difficult Very difficult
Please rate the participant’s performance throughout the procedure
Preparing for ultrasound procedure
0 1 2 3 4 5
Did not perform Demonstrates little Demonstrates Demonstrates all Prepares for the Independently
this step or no knowledge of knowledge of most elements required to procedure using prepares for the
elements required to elements required prepare the procedure own judgment procedure
prepare the procedure and/or prepares the and/or prepares the with only minimal
procedure following procedure with some adjustments by
direct instructions direct instruction supervisor
Time and motion
0 1 2 3 4 5
Unable to assess Many unnecessary Efficient time and Economy of
moves motion, but some movement
unnecessary moves and maximum
efficiency

Knowledge of materials and instruments
0 1 2 3 4 5
Unable to assess Frequently asked for Knew the names of Obviously familiar
the wrong materials or most materials and used with the materials
used an inappropriate appropriate instrument required and their
instrument for the task names
Flow of procedure and forward planning
0 1 2 3 4 5
Unable to assess Frequently stopped Demonstrated ability Obviously planned
imaging and needed to for forward planning course of procedure
discuss next move with steady progression with effortless flow
of imaging procedure from one move to
the next
Ability to adapt to individual pathological circumstances
0 1 2 3 4 5
Unable to assess Demonstrates Demonstrates Adjusts plan and Adjusts plan and Can independently
knowledge of normal knowledge of abnormal procedure with procedure with adjust plan and
anatomy/physiology pathologies direct guidance and minimal guidance procedure with
instruction and instruction awareness of how
it will affect the
overall course of
the procedure
Overall performance
0 1 2 3 4 5
Unable to assess Very poor Competent Clearly superior
Correct vessel identified
0 1
No Yes
Note: Adapted from the OSATS scoring system for ultrasound procedures as used in this study.

100 | JSOM Volume 25, Edition 3 / Fall 2025