What are the Indications for CTPA in Cancer Patients?
CTPA is indicated in cancer patients who present with symptoms suggestive of pulmonary embolism, such as sudden onset of shortness of breath, chest pain, rapid heart rate, or unexplained hypoxia. It may also be used in patients with a known history of [venous thromboembolism (VTE)]() and in those undergoing high-risk surgical procedures. Additionally, in cases where other imaging modalities like Doppler ultrasound or D-dimer tests suggest the presence of thrombosis, CTPA can provide definitive confirmation.