Vascular Surgery · NEET PG Preparation Surgery
A 68-year-old male presents with severe pain in his left lower limb while walking a distance of about 50 meters, which forces him to stop and rest. T…
Practice question from Vascular Surgery (NEET PG Preparation Surgery), with the correct answer and a step-by-step solution.
medium · MCQ · Q-776DAE
A 68-year-old male presents with severe pain in his left lower limb while walking a distance of about 50 meters, which forces him to stop and rest. The pain resolves within minutes of resting. On examination, the left lower limb is cool with absent pedal pulses. Which of the following is the most appropriate initial investigation to establish the anatomical diagnosis and plan revascularization?
- A.Duplex ultrasonography
- B.Catheter digital subtraction angiography (DSA)
- C.Contrast-enhanced computed tomography angiography (CTA)Correct answer
- D.Magnetic resonance angiography (MRA)
Solution
Contrast-enhanced computed tomography angiography (CTA) has largely become the gold standard and primary imaging modality for preoperative planning in peripheral arterial disease due to its high spatial resolution, wide anatomical coverage, and ability to visualize calcified plaques and run-off vessels. While Duplex USG is useful for screening, CTA provides the comprehensive road-map necessary for intervention.
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