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Updated: Sep 20, 2025

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Point of Care Transcranial Color-Coded Duplex Ultrasound of the Middle Cerebral Artery
Published on: August 9, 2024
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A coaching model for sonographers: enhancing skill competency in transcranial Doppler examinations
Mohammad Jalloul1, Marcy L Hutchinson2, Cynthia F Norris3
1Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, 19104, USA. jalloulm@chop.edu.
Pediatric Radiology
|May 29, 2025
Summary
A coaching model improved training for ultrasound technologists, increasing Transcranial Doppler (TCD) screening for children with sickle cell disease (SCD) and aiding stroke prevention efforts.
Area of Science:
- Pediatric Neurology
- Medical Imaging
- Quality Improvement
Background:
- Transcranial Doppler (TCD) is vital for stroke prevention in pediatric sickle cell disease (SCD).
- Low compliance with annual TCD screening is linked to limited access and insufficient technologist training.
- Addressing these barriers is crucial for effective SCD management.
Purpose of the Study:
- To enhance the number of ultrasound technologists proficient in TCD for SCD care.
- To improve adherence to recommended annual TCD screening protocols.
- To reduce reliance on a limited number of expert sonographers.
Main Methods:
- A quality improvement initiative at a children's hospital utilized a structured coaching model.
- Training involved one-on-one sessions, competency assessments, and hematology collaboration.
- Progress was tracked via surveys and control charts over 32 months.
Main Results:
- The percentage of TCD-competent sonographers increased from 21% to 58%.
- Reliance on a single expert technologist decreased from 42% to 3%.
- SCD patient TCD screening rates improved from 87% to 91%.
Conclusions:
- A coaching model effectively increased TCD-proficient technologists.
- The initiative significantly improved TCD screening rates for pediatric SCD patients.
- Enhanced technologist capacity supports better stroke risk management in SCD.
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