CT angiography may be helpful in ruling out a pulmonary embolism. These tests are sometimes combined with lower extremity venous ultrasound or D-dimer testing. To rule out aortic dissection, a<unk>  CT scan with contrast, MRI or transesophageal echocardiography can be used.
Chest pain CT
Pulmonary edema CT
Pulmonary embolism CT
Pneumonia CT
Chest pain MRI
Farmer's lung CT
Bronchitis CT
Pleural effusion CT