title: Computerized tomographic and magnetic resonance angiography for perforator-based free flaps: technical considerations.
abstract: Perforator-based free flaps rely on the appropriate dominant vessel supplying the vascular territory of the flap. Preoperative knowledge of the vascular anatomy can improve outcome and diminish surgical time. Several preoperative imaging techniques exist for surgical planning. Computed tomographic and magnetic resonance angiography are two emerging modalities that provide exceptional anatomic detail. Despite the growing utilization of cross-sectional imaging for preoperative planning, each modality has specific technical considerations that are necessary to consider in order to produce a quality study.
authors.affiliation: Division of Vascular and Interventional Radiology, Department of Radiology, Georgetown University Hospital, 3800 Reservoir Road NW, Washington, DC 20007, USA.
authors.forename: Justin S
authors.initials: JS
authors.lastname: Lee
authors.forename: Ketan M
authors.initials: KM
authors.lastname: Patel
authors.forename: Zhitong
authors.initials: Z
authors.lastname: Zou
authors.forename: Martin R
authors.initials: MR
authors.lastname: Prince
authors.forename: Emil I
authors.initials: EI
authors.lastname: Cohen
mesh_terms: D000792:Angiography; D058752:Free Tissue Flaps / Q000098:blood supply; D006801:Humans; D018810:Magnetic Resonance Angiography; D013524:Surgical Flaps / Q000098:blood supply*; D014057:Tomography, X-Ray Computed