Dicom.Data.DicomUID.Generate C# (CSharp) Method

        public static DicomUID Generate()
        {
            lock (GenerateUidLock) {
                long ticks = DateTime.UtcNow.Subtract(Y2K).Ticks;
                while (ticks == LastTicks) {
                    Thread.Sleep(1);
                    ticks = DateTime.UtcNow.Subtract(Y2K).Ticks;
                }
                LastTicks = ticks;

                string str = ticks.ToString();
                if (str.EndsWith("0000"))
                    str = str.Substring(0, str.Length - 4);

                StringBuilder uid = new StringBuilder();
                uid.Append(InstanceRootUID.UID).Append('.').Append(str);
                return new DicomUID(uid.ToString(), "SOP Instance UID", DicomUidType.SOPInstance);
            }
        }