What is your preferred diagnostic approach to suspected immune checkpoint inhibitor cardiotoxicity in patients who are otherwise not clinically stable enough for cMRI?   

The initial diagnostic imaging for a patient with suspected ICI myocarditis/myositis that is not clinically stable enough for a cardiac MRI should be transthoracic echocardiography. However, if the patient is clinically unstable to the degree that they are unable to have a cardiac MRI performed, the...