Abstract #0408

MR Angiography in Pre-Operative Evaluation for Fibula Free-Flap Transfer Operation: Application, Branching Pattern Analysis and Septocutaneous Perforator Identification

Gurpreet Singh Sandhu^1,2, Rod P. Rezaee³, Katherine Wright⁴, John A. Jesberger², Mark A. Griswold^1,4, Vikas Gulani^1,2

¹Radiology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH, United States; ²Case Center for Imaging Research, Case Western Reserve University, Cleveland, OH, United States; ³Case Center for Imaging Research, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH, United States; ⁴Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States

Lower leg magnetic resonance angiography (MRA) images of fibula free-flap transfer operation (FFFTO) candidates are commonly reported only in terms of branching patterns and pathological lesions in the lower leg arterial tree. Recent technical developments have enabled the acquisition of lower leg MRA images with a sub-millimeter spatial resolution that can also be employed to locate peroneal artery septocutaneous perforators (SCPs). Here, we describe an extension of application of MRA for visualization of the SCPs in these patients and compare bolus-chase and time-resolved MRA techniques for identification of the branching patterns and SCPs.