What is your approach to the diagnosis of acute kidney injury suspected secondary to renal infarction from thromboembolic disease?

Renal infarction should be suspected in a patient with acute flank/abdominal pain, hematuria, and elevated LDH with normal AST and ALT, especially in the setting of atrial fibrillation, left ventricular thrombus, dilated cardiomyopathy, prosthetic heart valve, renal artery injury/dissection or hypercoagulable state. Although contrast-enhanced CT is the modality of choice, the use of iodinated contrast may worsen the AKI. In the setting of AKI, I would order an MRA with Group II gadolinium to ide...