Table 2. Changed or additional diagnosis and treatment after chest CT.

Diagnosis	No. of patients	Treatment
Changed diagnosis	2/64*	Changed treatment accordingly
Pulmonary embolism	1	Anticoagulation
Lung cancer progression	1	No treatment change
Additional diagnosis	27/64	Additional examination or treatment
Pneumonia (small extents)	21†	Antibiotics in 4 patients, stop steroid in 1 patient
Lung nodule	2	PCNBx/follow up chest CT‡
Small amount pleural effusion	1	Diuretics use
Pericardial effusion	1	Follow up echocardiography
Pulmonary edema	1	Observation
Pulmonary hypertension	1	Sildenafil

^*After computed tomography (CT) diagnosis was changed in two patients out of 64 patients who performed CT. ^†17 out of 21 patients already used antibiotics before CT was performed; to only 4 patients, antibiotics was added. ^‡One patient with lung nodule performed percutaneous needle biopsy for lung nodule and squamous cell carcinoma was diagnosed but no further treatment for poor performance status. The other patient with lung nodule was examined 6 months later, and the lung nodule disappeared at follow up chest CT.