A family medicine resident performed an abdominal aortic aneurysm (AAA) screening as part of his point-of-care ultrasound training in the outpatient department. He was not sure about where to place the calipers for measuring the abdominal aorta diameter. So, he performed three measurements of the abdominal aorta diameter as shown in the picture below.
Question: Which is the most accurate measurement?
A. 1.19 cm
B. 1.82 cm
C. 2.14 cm
Answer: B, 1.82 cm