title: Laser Doppler perfusion imager (LDPI)--for the assessment of skin blood flow changes following sympathetic blocks.
abstract: A laser Doppler perfusion imager (LDPI) for evaluation of skin blood flow is presented and its use illustrated in two cases with a presumptive diagnosis of reflex sympathetic dystrophy (RSD) treated with local anesthetic sympathetic blocks. Among the advantages are the good spatial resolution over the area measured (12 x 12 cm) and that measurements can be done without contact with the skin. Generating a complete image takes 4.5 min but if higher temporal resolution is needed continuous measurements at one point are possible by use of another software routine.
authors.affiliation: Dept. of Anesthesiology and Intensive Care, University Hospital, Linköping, Sweden.
authors.forename: J
authors.initials: J
authors.lastname: Sørensen
authors.forename: M
authors.initials: M
authors.lastname: Bengtsson
authors.forename: E L
authors.initials: EL
authors.lastname: Malmqvist
authors.forename: G
authors.initials: G
authors.lastname: Nilsson
authors.forename: F
authors.initials: F
authors.lastname: Sjöberg
mesh_terms: D000328:Adult; D001340:Autonomic Nerve Block; D005260:Female; D006801:Humans; D017078:Laser-Doppler Flowmetry / Q000379:methods; D012019:Reflex Sympathetic Dystrophy / Q000503:physiopathology / Q000628:therapy; D012039:Regional Blood Flow; D012815:Signal Processing, Computer-Assisted; D012867:Skin / Q000098:blood supply*