diff --git a/IRaCIS.Core.Application/Service/Reading/Dto/ClinicalAnswerDto.cs b/IRaCIS.Core.Application/Service/Reading/Dto/ClinicalAnswerDto.cs
index c09cbbf25..bb6738c65 100644
--- a/IRaCIS.Core.Application/Service/Reading/Dto/ClinicalAnswerDto.cs
+++ b/IRaCIS.Core.Application/Service/Reading/Dto/ClinicalAnswerDto.cs
@@ -361,7 +361,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
 
         public Guid? ClinicalFormId { get; set; }
 
-        public string PicturePath { get; set; } = string.Empty;
+        public string? PicturePath { get; set; } 
 
         public Guid SubjectId { get; set; }
 
diff --git a/IRaCIS.Core.Application/Service/Reading/Dto/ReadingCalculateViewModel.cs b/IRaCIS.Core.Application/Service/Reading/Dto/ReadingCalculateViewModel.cs
index dbb1d0538..e9824555b 100644
--- a/IRaCIS.Core.Application/Service/Reading/Dto/ReadingCalculateViewModel.cs
+++ b/IRaCIS.Core.Application/Service/Reading/Dto/ReadingCalculateViewModel.cs
@@ -306,8 +306,8 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
 
         public decimal FristAddTaskNum { get; set; }
 
-        public string OtherMeasureData { get; set; } = string.Empty;
-        public string MeasureData { get; set; } = string.Empty;
+        public string? OtherMeasureData { get; set; } 
+        public string? MeasureData { get; set; }
 
         public List<TableQuestionInfo> TableQuestionList { get; set; } = new List<TableQuestionInfo>();
     }
diff --git a/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs b/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs
index 2daf6f3ca..8fe7acbd8 100644
--- a/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs
+++ b/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs
@@ -91,7 +91,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
 
         public bool IsCanEditPosition { get; set; } = false;
 
-        public string BlindName { get; set; } = string.Empty;
+        public string BlindName { get; set; } 
 
         public Guid? RowId { get; set; }
 
@@ -114,12 +114,12 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// <summary>
         /// 类型值
         /// </summary>
-        public string TypeValue { get; set; }
+        public string? TypeValue { get; set; }
 
         /// <summary>
         /// 序号标记
         /// </summary>
-        public string OrderMark { get; set; } = string.Empty;
+        public string? OrderMark { get; set; } 
 
         /// <summary>
 		/// 数值类型
@@ -129,7 +129,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// <summary>
 		/// 自定义单位
 		/// </summary>
-		public string CustomUnit { get; set; } = string.Empty;
+		public string? CustomUnit { get; set; }
 
         /// <summary>
         /// 单位
@@ -140,7 +140,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
 
         public ReportLayType ReportLayType { get; set; } = ReportLayType.Group;
 
-        public string ReportMark { get; set; } = string.Empty;
+        public string? ReportMark { get; set; }
 
         /// <summary>
         /// 高亮问题的答案
@@ -310,7 +310,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
 	{
 		public Guid RowId { get; set; }
 
-        public string OrderMarkName { get; set; }
+        public string? OrderMarkName { get; set; }
 
 		public Guid? OrganInfoId { get; set; }
 
@@ -500,7 +500,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// <summary>
         /// MeasureData
         /// </summary>
-        public string MeasureData { get; set; }
+        public string? MeasureData { get; set; }
 
         /// <summary>
         /// CreateTime
@@ -683,7 +683,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
 		/// <summary>
 		/// 标记工具
 		/// </summary>
-		public string MarkTool { get; set; } = string.Empty;
+		public string? MarkTool { get; set; } 
 
 		/// <summary>
 		/// TrialId
@@ -738,7 +738,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// <summary>
         /// MeasureData
         /// </summary>
-        public string MeasureData { get; set; } = string.Empty;
+        public string? MeasureDataMeasureData { get; set; } 
 
         /// <summary>
         /// 是否是当前任务添加
@@ -757,14 +757,14 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// </summary>
         public Guid? MergeRowId { get; set; }
 
-        public string BlindName { get; set; } = string.Empty;
+        public string? BlindName { get; set; } 
 
-        public string OrderMark { get; set; } = string.Empty;
+        public string? OrderMark { get; set; } 
 
         /// <summary>
         /// 截图地址
         /// </summary>
-        public string PicturePath { get; set; } = string.Empty;
+        public string? PicturePath { get; set; } 
 
         /// <summary>
         /// 第一次添加的任务ID
@@ -800,11 +800,11 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// <summary>
 		/// 来自于哪个标记
 		/// </summary>
-		public string FromMark { get; set; } = string.Empty;
+		public string? FromMark { get; set; } 
 
-        public string ReportMark { get; set; } = string.Empty;
+        public string? ReportMark { get; set; } 
 
-        public string RowMark { get; set; } = string.Empty;
+        public string? RowMark { get; set; } 
 
 	}
 
@@ -1000,13 +1000,13 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// <summary>
         /// 序号标记
         /// </summary>
-        public string OrderMark { get; set; } = string.Empty;
+        public string? OrderMark { get; set; } 
 
       
-        public string OrderMarkName { get; set; } = string.Empty;
+        public string? OrderMarkName { get; set; } 
 
 
-        public string FromMark { get; set; } = string.Empty;
+        public string? FromMark { get; set; }
 
         /// <summary>
 		/// 病灶类型
@@ -1059,7 +1059,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// <summary>
         /// RowIndex
         /// </summary>
-        public string RowIndex { get; set; }
+        public string? RowIndex { get; set; }
 
         /// <summary>
         /// RowIndex
@@ -1072,7 +1072,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// </summary>
         public bool IsDicomReading { get; set; } = true;
 
-        public string BlindName { get; set; } = string.Empty;
+        public string? BlindName { get; set; } 
 
 
         /// <summary>
@@ -1093,10 +1093,10 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// <summary>
         /// MeasureData
         /// </summary>
-        public string MeasureData { get; set; } = string.Empty;
+        public string? MeasureData { get; set; } 
 
 
-        public string OtherMeasureData { get; set; } = string.Empty;
+        public string? OtherMeasureData { get; set; } 
         public int ShowOrder { get; set; }
 
 
@@ -1119,9 +1119,9 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// </summary>
         public Guid? OtherStudyId { get; set; }
 
-        public string OtherMarkTool { get; set; } = string.Empty;
+        public string? OtherMarkTool { get; set; }
 
-        public string OtherPicturePath { get; set; } = string.Empty;
+        public string? OtherPicturePath { get; set; }
 
         public int? OtherNumberOfFrames { get; set; }
 
@@ -1165,12 +1165,12 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// <summary>
         /// MarkTool
         /// </summary>
-        public string MarkTool { get; set; } = string.Empty;
+        public string? MarkTool { get; set; }
 
         /// <summary>
         /// PicturePath
         /// </summary>
-        public string PicturePath { get; set; } = string.Empty;
+        public string? PicturePath { get; set; } 
 
         /// <summary>
         /// NumberOfFrames
@@ -1180,14 +1180,14 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// <summary>
         /// MeasureData
         /// </summary>
-        public string MeasureData { get; set; } = string.Empty;
+        public string? MeasureData { get; set; } 
 
 
         public Guid? FirstAddTaskId { get; set; }
 
         public QuestionType? QuestionType { get; set; }
 
-        public string OrderMarkName { get; set; } = string.Empty;
+        public string? OrderMarkName { get; set; } 
 
 
         /// <summary>
@@ -1205,12 +1205,12 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// </summary>
         public Guid? OtherStudyId { get; set; }
 
-        public string OtherMarkTool { get; set; } = string.Empty;
+        public string? OtherMarkTool { get; set; } 
 
-        public string OtherPicturePath { get; set; } = string.Empty;
+        public string? OtherPicturePath { get; set; } 
 
         public int? OtherNumberOfFrames { get; set; }
-        public string OtherMeasureData { get; set; } = string.Empty;
+        public string? OtherMeasureData { get; set; }
     }
     public class GetReadingQuestionAndAnswerInDto
     {
@@ -2171,14 +2171,14 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// <summary>
         /// 标记工具
         /// </summary>
-        public string MarkTool { get; set; } = string.Empty;
+        public string? MarkTool { get; set; } 
 
         public decimal RowIndex { get; set; }
 
         /// <summary>
         /// 截图地址
         /// </summary>
-        public string PicturePath { get; set; } = string.Empty;
+        public string? PicturePath { get; set; } 
 
         /// <summary>
 		/// 任务Id
@@ -2190,9 +2190,9 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// </summary>
         public Guid TrialId { get; set; }
 
-        public string MeasureData { get; set; } = string.Empty;
+        public string? MeasureData { get; set; } 
 
-        public string OtherMeasureData { get; set; } = string.Empty;
+        public string? OtherMeasureData { get; set; }
 
         public Guid? SeriesId { get; set; }
 
@@ -2238,9 +2238,9 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         /// </summary>
         public Guid? OtherStudyId { get; set; }
 
-        public string OtherMarkTool { get; set; } = string.Empty;
+        public string? OtherMarkTool { get; set; } 
 
-        public string OtherPicturePath { get; set; } = string.Empty;
+        public string? OtherPicturePath { get; set; } 
 
         public int? OtherNumberOfFrames { get; set; }