Design and Implementation of Upper Layer Protocol in DICOM 3.0
Zhang Lihao,Wang Yong,Mu Xuanqin,Hong Wei
(School of Electronics and Information Engineering,Xi'an Jiaotong University,Xi'an 710049, China)

Abstract: A study of upper layer protocol (ULP) is made which refers to application control service elements (ACSE) and application layer data exchange provisions under protocol architecture of digital imaging and com munications in medicine 3.0 (DICOM3.0). After a general method of ULP implementation is introduced, a new method which is used to reduce data copy is presented and applied. When data from DICOM message service element (DIMSE) move into TCP packets, it requires four times of data copy with traditional method but one time only with the new method. Practical operations prove that the new method canimprove protocol running efficiency notably.
Keywords: ULP;image communications;protocol implementation;optimizing implementation