Anatomical Correlation for Focused Assessment With Sonography in Trauma

Area of Science:

• Emergency Medicine
• Anatomy
• Medical Education

Background:

• Anatomical orientation during the Focused Assessment with Sonography in Trauma (FAST) exam, particularly in subxiphoid and upper quadrant views, presents a learning challenge.
• Difficulty in visualizing anatomical structures in their natural positions can hinder proficiency in performing and interpreting FAST exams.

Purpose of the Study:

• To develop and present a novel in-situ cadaver dissection technique to enhance anatomical understanding for the FAST exam.
• To correlate direct anatomical visualization with corresponding ultrasound imaging in the subxiphoid and upper quadrant regions.

Main Methods:

• An in-situ cadaver dissection was performed, preserving the natural positioning of anatomical structures.
• Anatomical views relevant to the FAST exam (subxiphoid, right upper quadrant, left upper quadrant) were visualized.
• Dissection views were mirrored or directly correlated with standard ultrasound probe perspectives to match the FAST exam imaging.

Main Results:

• The in-situ approach allowed clear visualization of anatomical layers, spaces, and adjacent organs from the ultrasound probe's perspective.
• Direct correlation between cadaver anatomy and ultrasound screen views was established for key FAST exam regions.
• The technique effectively demonstrated the spatial relationships crucial for accurate FAST exam interpretation.

Conclusions:

• In-situ cadaver dissection is a valuable tool for teaching and learning FAST exam anatomy, particularly for challenging views.
• This method improves the correlation between anatomical knowledge and ultrasound image interpretation in emergency settings.
• The technique offers a reproducible resource to enhance the educational effectiveness of FAST exam training.