diff --git a/IRaCIS.Core.API/Controllers/UploadDownLoadController.cs b/IRaCIS.Core.API/Controllers/UploadDownLoadController.cs
index cd6a9c5c2..0e1a980df 100644
--- a/IRaCIS.Core.API/Controllers/UploadDownLoadController.cs
+++ b/IRaCIS.Core.API/Controllers/UploadDownLoadController.cs
@@ -1042,6 +1042,8 @@ namespace IRaCIS.Core.API.Controllers
                         var dicomDirPath = $"{patient.PatientIdStr}/{studyTime}_{modalitysStr}/DICOMDIR";
                         var dicomDirEntry = zip.CreateEntry(dicomDirPath, CompressionLevel.Fastest);
 
+                        Log.Logger.Warning($"DIRPath: {study.StudyDIRPath}");
+
                         await using (var entryStream = dicomDirEntry.Open())
                         await using (var dirStream = await _oSSService.GetStreamFromOSSAsync(study.StudyDIRPath))
                         {
@@ -1151,6 +1153,11 @@ namespace IRaCIS.Core.API.Controllers
                 // ✅ HttpConnection.ContentLengthReadStream 已知问题
                 Log.Logger.Warning($"Stream aborted: {ex.Message}");
             }
+            catch (Exception ex) 
+            {
+                // ✅ HttpConnection.ContentLengthReadStream 已知问题
+                Log.Logger.Warning($"异常: {ex.Message}");
+            }
 
             return new EmptyResult();
 
diff --git a/IRaCIS.Core.Application/TestService.cs b/IRaCIS.Core.Application/TestService.cs
index 47d6c0053..072b4dfa2 100644
--- a/IRaCIS.Core.Application/TestService.cs
+++ b/IRaCIS.Core.Application/TestService.cs
@@ -1,4 +1,6 @@
 using Aliyun.OSS;
+using FellowOakDicom;
+using FellowOakDicom.Imaging;
 using IRaCIS.Application.Contracts;
 using IRaCIS.Core.Application.BusinessFilter;
 using IRaCIS.Core.Application.Contracts;
@@ -52,6 +54,70 @@ namespace IRaCIS.Core.Application.Service
         ILogger<TestService> _logger, IMapper _mapper, IUserInfo _userInfo, IStringLocalizer _localizer) : BaseService
     {
         public static int IntValue = 100;
+
+
+        /// <summary>
+        /// 维护dir 需求新增的字段
+
+        /// </summary>
+        /// <param name="trialId"></param>
+        /// <param name="_instanceRepository"></param>
+        /// <param name="_studyRepository"></param>
+        /// <param name="_seriesRepository"></param>
+        /// <returns></returns>
+        [AllowAnonymous]
+        public async Task<IResponseOutput> TrialImageAddExtralField(Guid trialId,
+                        [FromServices] IRepository<DicomInstance> _instanceRepository,
+             [FromServices] IRepository<DicomStudy> _studyRepository,
+              [FromServices] IOSSService _oSSService,
+             [FromServices] IRepository<DicomSeries> _seriesRepository)
+        {
+            //            UPDATE DicomStudy
+            //SET DicomStudyDate = CONVERT(char(8), StudyTime, 112),                --yyyyMMdd
+            //    DicomStudyTime = REPLACE(CONVERT(char(8), StudyTime, 108), ':', ''); --HHmmss
+            //                where DicomStudyDate = ''
+
+
+            //instance 找到传输语法为空的，然后分组
+            var seriesList = _instanceRepository.Where(t => t.TrialId == trialId && t.TransferSyntaxUID == "")
+                //按照序列 和  NumberOfFrames 分组
+                .GroupBy(t => new { t.NumberOfFrames, t.SeriesId })
+                // 每个分组 取数据最小的一条
+                .Select(g => new { g.Key.SeriesId, g.Key.NumberOfFrames, g.OrderBy(t => t.FileSize).First().Path }).ToList();
+
+            foreach (var item in seriesList)
+            {
+                var stream = await _oSSService.GetStreamFromOSSAsync(item.Path);
+
+                var dicomFile = DicomFile.Open(stream);
+
+                var pixelData = DicomPixelData.Create(dicomFile.Dataset);
+
+                //获取像素是否为封装形式
+                var syntax = dicomFile.Dataset.InternalTransferSyntax;
+
+                //读取需要维护的值
+                var transferSyntaxUID = dicomFile.FileMetaInfo.GetSingleValueOrDefault(DicomTag.TransferSyntaxUID, string.Empty);
+                var mediaStorageSOPClassUID = dicomFile.FileMetaInfo.GetSingleValueOrDefault(DicomTag.MediaStorageSOPClassUID, string.Empty);
+                var mediaStorageSOPInstanceUID = dicomFile.FileMetaInfo.GetSingleValueOrDefault(DicomTag.MediaStorageSOPInstanceUID, string.Empty);
+                var sOPClassUID = dicomFile.Dataset.GetSingleValueOrDefault(DicomTag.SOPClassUID, string.Empty);
+
+                //维护序列层级四个字段   后再用sql 维护study series 时间拆分 和 MediaStorageSOPInstanceUID
+                await _instanceRepository.BatchUpdateNoTrackingAsync(t => t.SeriesId == item.SeriesId, t => new DicomInstance()
+                {
+                    IsEncapsulated = syntax.IsEncapsulated,
+                    TransferSyntaxUID = transferSyntaxUID,
+                    MediaStorageSOPClassUID = mediaStorageSOPClassUID,
+                    SOPClassUID = sOPClassUID,
+                });
+
+            }
+
+            return ResponseOutput.Ok();
+
+        }
+
+
         /// <summary>
         /// 清理一致性分析任务
         /// </summary>