title: Measurement of anastomosis geometry in lower extremity bypass grafts with 3-D ultrasound imaging.
abstract: The attachment sites of lower extremity bypass grafts are known to exhibit a wide range of geometries. Factors that determine the geometry of a given anastomosis include graft material, graft site, native vessel size, graft size and individual patient anatomy. Therefore, it is difficult to specify a standard anastomosis geometry before surgery and difficult to predict the effect of the geometry on long-term graft patency. We have used 3-D ultrasound imaging to study 46 proximal anastomoses of lower limb bypass grafts. We have developed methods to characterize the 3-D geometry of the anastomosis in terms of component sizes and angles. These detailed geometric measurements describe a range of anastomosis geometries and establish standardized parameters across cases that can be used to relate anastomosis geometry to outcome.
authors.affiliation: Department of Surgery, University of Washington, Seattle, WA, USA. leotta@u.washington.edu
authors.forename: Daniel F
authors.initials: DF
authors.lastname: Leotta
authors.forename: Jean F
authors.initials: JF
authors.lastname: Primozich
authors.forename: Christopher M
authors.initials: CM
authors.lastname: Lowe
authors.forename: Leni N
authors.initials: LN
authors.lastname: Karr
authors.forename: Robert O
authors.initials: RO
authors.lastname: Bergelin
authors.forename: Kirk W
authors.initials: KW
authors.lastname: Beach
authors.forename: R Eugene
authors.initials: RE
authors.lastname: Zierler
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000714:Anastomosis, Surgical; D001132:Arm / Q000098:blood supply; D001157:Arterial Occlusive Diseases / Q000000981:diagnostic imaging / Q000601:surgery*; D019917:Blood Vessel Prosthesis Implantation; D005260:Female; D005263:Femoral Artery / Q000637:transplantation; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D007866:Leg / Q000098:blood supply*; D023821:Limb Salvage; D008297:Male; D008875:Middle Aged; D012501:Saphenous Vein / Q000637:transplantation; D018608:Ultrasonography, Doppler; D014654:Vascular Patency