Chests X-ray was done in the majority of cases (96.6%), but only yields a diagnosis in 34.4%. When the sensitivity of chest CT was compared to bronchoscopy, it yields a better sensitivity 56.3% versus 35.2% respectively. Chest CT angiogram was done only in 81 patients, which had a sensitivity of 31.3%. In post-hoc analysis, when it was combined with chest CT, their combined sensitivity was raised to 57.1%. Pulmonary angiography was only performed in 19 cases with a sensitivity of 63.2%, but given its invasive nature, it should be mainly reserved for the treatment of massive hemoptysis. The SPECT ventilation-perfusion scan was performed only to diagnosed pulmonary embolism, which gave a sensitivity of 24.8%. There was one case were the cause
