Fig. 5 | Scientific Reports

Fig. 5

From: Improving lower-extremity artery depiction and diagnostic confidence using dual-energy technique and popliteal artery monitoring in dual-low dose CT angiography

Fig. 5

A 64-year-old female patient with hypertension underwent lower extremity DE-CTA (with abdominal aorta monitoring) due to leg pain. (a) Show abdominal lliac segment. (b) Show femoral popliteal segment. (c) Show lower knee segment. (d) Show maximum intensity projection of peripheral arteries. The image quality was good with significant contrast enhancement, though the visualization of below-knee arteries was faint. The senior physician diagnosed no significant abnormalities in the lower extremity arteries, but the junior physician expressed low confidence in diagnosing the LKS region. Subjective scores were AIS: 5, FPS: 4, LKS: 4; with a below-knee arterial grading of 3. Diagnostic confidence levels were AIS: 3, FPS: 3, LKS: 2.

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