title: TCP/IP optimization over wide area networks: implications for teleradiology.
abstract: Radiology examinations are large. The advent of fast volume imaging is making that statement truer every year. PACS are based on the assumption of fast local networking and just-in-time image pull to the desktop. On the other hand, teleradiology has been developed on a push model to accommodate the challenges of moderate bandwidth, high-latency wide area networks (WANs). Our group faced the challenging task of creating a PACS environment that felt local, while pulling images across a 3,000-mile roundtrip WAN link. Initial tests showed WAN performance lagging local area network (LAN) performance by a factor of 30 times. A 16-month journey of explorations pulled the WAN value down to only 1.5 times slower than the LAN.
authors.affiliation: Mayo Clinic, Rochester, MN, USA. langer.steve@mayo.edu
authors.forename: Steve G
authors.initials: SG
authors.lastname: Langer
authors.forename: Todd
authors.initials: T
authors.lastname: French
authors.forename: Colin
authors.initials: C
authors.lastname: Segovis
mesh_terms: D003195:Computer Communication Networks; D005240:Feasibility Studies; D006801:Humans; D011873:Radiology Information Systems; D012984:Software; D019112:Teleradiology / Q000379:methods*