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Updated: Nov 22, 2025

Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System
Published on: March 6, 2019
Design and evaluation of the I-SCAN faculty POCUS program
Michael Janjigian1, Anne Dembitzer2, Caroline Srisarajivakul-Klein3
1Department of Medicine, New York University Grossman School of Medicine, NYC Health & Hospitals/Bellevue, New York, USA. janjigian@gmail.com.
Background:
Point-of-care ultrasound (POCUS) is becoming widely adopted with increasing accessibility of courses. Little is known about the optimal design of the introductory course or longitudinal training programs targeting hospitalists that are critical to success.
Methods:
Hospitalists at four academic sites participated in a two-day introductory course and a longitudinal phase comprising clinical POCUS practice, clip uploading with online feedback, hands-on teaching, and monthly ultrasound conferences. Assessments were performed immediately before and after the two-day course and after 1 year.
Results:
Knowledge increased from baseline to post two-day course (median score 58 and 85%, respectively, p < 0.001) and decreased slightly at 1 year (median score 81%, p = 0.012). After the two-day introductory course, the median score for hands-on image acquisition skills, the principal metric of participant success, was 75%. After 1 year, scores were similar (median score 74%). Confidence increased from baseline to post two-day course (1.5 to 3.1 on a 4 point Likert scale from Not at all confident (1) to Very confident (4), p < 0.001), and remained unchanged after 1 year (2.73). Course elements correlating with a passing score on the final hands-on test included number of clip uploads (r = 0.85, p,0.001), attendance at hands-on sessions (r = 0.7, p = 0.001), and attendance at monthly conferences (r = 0.50, p = 0.03).
Conclusions:
The I-ScaN POCUS training program increased hospitalist knowledge, skill and confidence with maintained skill and confidence after 1 year. Uploading clips and attending hands-on teaching sessions were most correlative with participant success.

