title: High-performance computing service over the internet for intraoperative image processing.
abstract: This paper presents a framework for a cluster system that is suited for high-resolution image processing over the Internet during surgery. The system realizes high-performance computing (HPC) assisted surgery, which allows surgeons to utilize HPC resources remote from the operating room. One application available in the system is an intraoperative estimator for the range of motion (ROM) adjustment in total hip replacement (THR) surgery. In order to perform this computation-intensive estimation during surgery, we parallelize the ROM estimator on a cluster of 64 PCs, each with two CPUs. Acceleration techniques such as dynamic load balancing and data compression methods are incorporated into the system. The system also provides a remote-access service over the Internet with a secure execution environment. We applied the system to an actual THR surgery performed at Osaka University Hospital and confirmed that it realizes intraoperative ROM estimation without degrading the resolution of images and limiting the area for estimations.
authors.affiliation: Department of Computer Science, Graduate School of Information Science and Technology, Osaka University, Osaka 560-8531, Japan.
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Kawasaki
authors.forename: Fumihiko
authors.initials: F
authors.lastname: Ino
authors.forename: Yasuharu
authors.initials: Y
authors.lastname: Mizutani
authors.forename: Noriyuki
authors.initials: N
authors.lastname: Fujimoto
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Sasama
authors.forename: Yoshinobu
authors.initials: Y
authors.lastname: Sato
authors.forename: Nobuhiko
authors.initials: N
authors.lastname: Sugano
authors.forename: Shinichi
authors.initials: S
authors.lastname: Tamura
authors.forename: Kenichi
authors.initials: K
authors.lastname: Hagihara
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation / Q000379:methods*; D003205:Computing Methodologies; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D020407:Internet; D016343:Monitoring, Intraoperative / Q000295:instrumentation / Q000379:methods; D009862:Online Systems; D011856:Radiographic Image Enhancement / Q000295:instrumentation / Q000379:methods; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D025321:Surgery, Computer-Assisted / Q000295:instrumentation / Q000379:methods*; D017216:Telemedicine / Q000295:instrumentation / Q000379:methods*