Pulmonary embolism is best diagnosed by –: (A) USG, (B) X-ray chest, (C) Ventilation – Perfusion scan, (D) CT scan
Answer is D. No option is absolutely correct.
The pulmonary angiography has traditionally been considered as the gold standard test for pulmonary embolism. But, now a days CT contrast (MDCTA) is the investigation of choice.
Amongst the given options, lung V/Q scan is the best option as it is the 2nd choice of the investigation after MDCTA.