diff --git a/IRaCIS.Core.Application/Service/Reading/Dto/ReadingCalculateViewModel.cs b/IRaCIS.Core.Application/Service/Reading/Dto/ReadingCalculateViewModel.cs
index 6d0c58a6..e446b46d 100644
--- a/IRaCIS.Core.Application/Service/Reading/Dto/ReadingCalculateViewModel.cs
+++ b/IRaCIS.Core.Application/Service/Reading/Dto/ReadingCalculateViewModel.cs
@@ -92,6 +92,8 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
     {
         public Guid SubjectId { get; set; }
 
+        public bool IsBaseLine { get; set; }
+
         public Guid VisitTaskId { get; set; }
 
         public Guid CriterionId { get; set; }
diff --git a/IRaCIS.Core.Application/Service/Reading/ReadingCalculateService.cs b/IRaCIS.Core.Application/Service/Reading/ReadingCalculateService.cs
index 9e95f604..dc8d732a 100644
--- a/IRaCIS.Core.Application/Service/Reading/ReadingCalculateService.cs
+++ b/IRaCIS.Core.Application/Service/Reading/ReadingCalculateService.cs
@@ -136,6 +136,14 @@ namespace IRaCIS.Core.Application.Service
 			};
 
 
+			var typeNAList = new List<QuestionType>
+			{
+				QuestionType.SODChange,
+				QuestionType.SODPercent,
+				QuestionType.LowestIncrease,
+				QuestionType.LowPercent,
+			};
+
             foreach (var calculate in calculateList)
             {
 			   var item=inDto.QuestionInfo.FirstOrDefault(x => x.QuestionType == calculate.QuestionType);
@@ -157,7 +165,16 @@ namespace IRaCIS.Core.Application.Service
 							var value = await calculate.GetDecimalNullFun(inDto);
 							if (value == null)
 							{
-								item.Answer = string.Empty;
+								if (typeNAList.Contains(item.QuestionType ?? QuestionType.SOD))
+								{
+									item.Answer = "NA";
+								}
+								else
+                                {
+									item.Answer = string.Empty;
+
+								}
+								
 							}
 							else
 							
@@ -276,6 +293,7 @@ namespace IRaCIS.Core.Application.Service
 		public async Task<ReadingCalculateDto> GetReadingCalculateDto(Guid visitTaskId)
 		{
 			var visitTask = await _visitTaskRepository.Where(x => x.Id == visitTaskId).FirstNotNullAsync();
+			var subjectVisit = await _subjectVisitRepository.Where(x => x.Id == (visitTask.SourceSubjectVisitId ?? default(Guid))).FirstOrDefaultAsync();
 			var criterionId = await _readingQuestionCriterionTrialRepository.Where(x => x.TrialId == visitTask.TrialId && x.IsConfirm).Select(x => x.Id).FirstOrDefaultAsync();
 			List<QuestionInfo> questionInfos = await _readingQuestionTrialRepository.Where(x => x.ReadingQuestionCriterionTrialId == criterionId).Select(x => new QuestionInfo()
 			{
@@ -323,6 +341,7 @@ namespace IRaCIS.Core.Application.Service
 				QuestionInfo = questionInfos,
 				CriterionId = criterionId,
 				TrialId = visitTask.TrialId,
+				IsBaseLine = subjectVisit!.IsBaseLine,
 				DoctorUserId = visitTask.DoctorUserId,
 			};
 
@@ -525,6 +544,11 @@ namespace IRaCIS.Core.Application.Service
 		/// <returns></returns>
 		public async Task<string> GetLowVisit(ReadingCalculateDto inDto)
 		{
+			if (inDto.IsBaseLine)
+			{
+				return "NA";
+			}
+
 			var decimalAnswerList = await GetVisitTaskAnswerList(inDto);
 			return decimalAnswerList.OrderBy(x => x.SOD).Select(x => x.VisitName).FirstOrDefault() ?? string.Empty;
 		}
@@ -560,6 +584,10 @@ namespace IRaCIS.Core.Application.Service
 		/// <returns></returns>
 		public async Task<string> GetIsAddFive(ReadingCalculateDto inDto)
 		{
+			if (inDto.IsBaseLine)
+			{
+				return "NA";
+			}
 
 			var LastVisitTaskId = await this.GetLastVisitTaskId(inDto);
 
@@ -596,6 +624,11 @@ namespace IRaCIS.Core.Application.Service
 		/// <returns></returns>
 		public async Task<string> GetNETarget(ReadingCalculateDto inDto)
 		{
+			if (inDto.IsBaseLine)
+			{
+				return "NA";
+			}
+
 			var result = inDto.QuestionInfo.Any(x => x.QuestionType == QuestionType.TargetLesion && x.Answer == "NE");
 
 			return result ? "有" : "无";
@@ -611,6 +644,12 @@ namespace IRaCIS.Core.Application.Service
 		/// <returns></returns>
 		public async Task<string> GetTumor(ReadingCalculateDto inDto)
 		{
+
+			if (inDto.IsBaseLine)
+			{
+				return "NA";
+			}
+
 			var targetLesion = inDto.QuestionInfo.Where(x => x.QuestionType == QuestionType.TargetLesion).Select(x => x.Answer).FirstOrDefault();
 			var noTargetLesion = inDto.QuestionInfo.Where(x => x.QuestionType == QuestionType.NoTargetLesion).Select(x => x.Answer).FirstOrDefault();
 			var newLesions = inDto.QuestionInfo.Where(x => x.QuestionType == QuestionType.NewLesions).Select(x => x.Answer).FirstOrDefault();
@@ -802,7 +841,10 @@ namespace IRaCIS.Core.Application.Service
         public async Task<string> GetTargetLesionEvaluate(ReadingCalculateDto inDto)
         {
             var tableQuestion = inDto.QuestionInfo.Where(x => x.LesionType == LesionType.TargetLesion).SelectMany(x => x.TableRowInfoList).ToList();
-
+			if (inDto.IsBaseLine)
+			{
+				return "NA";
+			}
 			if (tableQuestion.Count() == 0)
 			{
 				return string.Empty;
@@ -942,7 +984,12 @@ namespace IRaCIS.Core.Application.Service
         /// <returns></returns>
         public async Task<string> GetNoTargetLesionEvaluate(ReadingCalculateDto inDto)
         {
-            var tableRows = inDto.QuestionInfo.Where(x => x.LesionType == LesionType.NonTargetLesions).SelectMany(x => x.TableRowInfoList).ToList();
+			if (inDto.IsBaseLine)
+			{
+				return "NA";
+			}
+
+			var tableRows = inDto.QuestionInfo.Where(x => x.LesionType == LesionType.NonTargetLesions).SelectMany(x => x.TableRowInfoList).ToList();
 
             var tableQuestions = tableRows.SelectMany(x => x.TableQuestionList).ToList();
 
@@ -995,7 +1042,12 @@ namespace IRaCIS.Core.Application.Service
         /// <returns></returns>
         public async Task<string> GetNewLesionEvaluate(ReadingCalculateDto inDto)
         {
-            var tableRows = inDto.QuestionInfo.Where(x => x.LesionType == LesionType.NewLesions).SelectMany(x => x.TableRowInfoList).ToList();
+			if (inDto.IsBaseLine)
+			{
+				return "NA";
+			}
+
+			var tableRows = inDto.QuestionInfo.Where(x => x.LesionType == LesionType.NewLesions).SelectMany(x => x.TableRowInfoList).ToList();
 
             var tableQuestions = tableRows.SelectMany(x => x.TableQuestionList).ToList();
 
diff --git a/IRaCIS.Core.Infra.EFCore/Common/ReadingCommon.cs b/IRaCIS.Core.Infra.EFCore/Common/ReadingCommon.cs
index 94e5178a..52ec9470 100644
--- a/IRaCIS.Core.Infra.EFCore/Common/ReadingCommon.cs
+++ b/IRaCIS.Core.Infra.EFCore/Common/ReadingCommon.cs
@@ -53,15 +53,24 @@ namespace IRaCIS.Core.Infra.EFCore.Common
 
         public static decimal IsNullOrEmptyReturn0(this string value)
         {
-            if (value == null || value == string.Empty)
+            try
             {
-               return 0;
-               
+                if (value == null || value == string.Empty || value == "NA")
+                {
+                    return 0;
+
+                }
+                else
+                {
+                    return decimal.Parse(value);
+                }
             }
-            else
+            catch (Exception)
             {
-                return decimal.Parse(value);
+
+                return 0;
             }
+         
         }