Department of Computer Science, E2-445 EITC, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada.
J Digit Imaging. 2012 Feb;25(1):101-9. doi: 10.1007/s10278-011-9387-9.
The staggering number of images acquired by modern modalities requires new approaches for medical data transmission. There have been several attempts to improve data transmission time between medical imaging systems. These attempts were mostly based on compression. Although the compression methods can help in many cases, they are sometimes ineffectual in high-speed networks. This paper introduces parallelism to provide an effective method of medical data transmission over both local area network (LAN) and wide area network (WAN). It is based on the Digital Imaging and Communications in Medicine (DICOM) protocol and uses parallel TCP connections in storage services within the protocol. Using the proposed interface in our method, current medical imaging applications can take advantage of parallelism without any modification. Experimental results show a speedup of about 1.3 to 1.5 for CT images and relatively high speedup of about 2.2 to 3.5 times for magnetic resonance (MR) images over LAN. The transmission time is improved drastically over WAN. The speedup is about 16.1 for CT images and about 5.6 to 11.5 for MR images.
现代医学成像设备获取的图像数量庞大，这就需要新的方法来传输医学数据。人们已经尝试了多种方法来提高医学成像系统之间的数据传输时间。这些尝试主要基于压缩。虽然压缩方法在许多情况下都有帮助，但在高速网络中有时却无效。本文引入并行性，为局域网 (LAN) 和广域网 (WAN) 上的医学数据传输提供了一种有效的方法。它基于数字成像和通信医学 (DICOM) 协议，并在协议中的存储服务中使用并行 TCP 连接。在我们的方法中使用所提出的接口，当前的医学成像应用程序无需任何修改即可利用并行性。实验结果表明，在 LAN 上，CT 图像的加速比约为 1.3 到 1.5，而磁共振 (MR) 图像的加速比相对较高，约为 2.2 到 3.5 倍。WAN 的传输时间得到了极大的改善。CT 图像的加速比约为 16.1，MR 图像的加速比约为 5.6 到 11.5。
