This is an article evaluating abnormal blood flow in a patient with hemolytic anemia via the iTFlow.
Hemolytic anemia after aortic surgery cause by a kinked graft is very rare.
It is very difficult to detect the flow by conventional imaging modalities.
The findings from 4D flow MRI depict the cause of hemolytic anemia both visually and quantitatively.

Takei, Yusuke MDa; Shibasaki, Ikuko MD, PhDa; Suzuki, Kohei MSb; Miyazaki, Shohei PhDb; Hirota, Shotaro MDa; Ohashi, Hirotaka MDa; Saito, Shunsuke MD, PhDa; Fukuda, Hirotsugu MD, PhDa, "Hemolytic anemia caused by an excessively kinked prosthetic graft after total arch replacement detected", Lippincott, Published Online (2022) 10.1097/MD.0000000000029617.