diff --git a/IRaCIS.Core.Application/Service/Reading/ReadingCalculateService.cs b/IRaCIS.Core.Application/Service/Reading/ReadingCalculateService.cs
index 8ee6520bf..80105ea76 100644
--- a/IRaCIS.Core.Application/Service/Reading/ReadingCalculateService.cs
+++ b/IRaCIS.Core.Application/Service/Reading/ReadingCalculateService.cs
@@ -10,6 +10,7 @@ using IRaCIS.Core.Application.Interfaces;
 using IRaCIS.Core.Application.ViewModel;
 using Panda.DynamicWebApi.Attributes;
 using IRaCIS.Core.Domain.Share;
+using IRaCIS.Core.Infra.EFCore.Common;
 
 namespace IRaCIS.Core.Application.Service
 {
@@ -254,13 +255,13 @@ namespace IRaCIS.Core.Application.Service
 				if (item.TableQuestionList.Any(x => x.QuestionMark == QuestionMark.IsLymph && (x.Answer == "是"||x.Answer.ToLower()=="true".ToLower())))
 				{
 					// 淋巴结的短径
-					result += decimal.Parse(item.TableQuestionList.Where(x => x.QuestionMark == QuestionMark.ShortAxis).Select(x => x.Answer).FirstOrDefault() ?? "0");
+					result += decimal.Parse((item.TableQuestionList.Where(x => x.QuestionMark == QuestionMark.ShortAxis).Select(x => x.Answer).FirstOrDefault()).IsNullOrEmptyReturn0());
 				}
 
 				if (item.TableQuestionList.Any(x => x.QuestionMark == QuestionMark.IsLymph && (x.Answer == "是" || x.Answer.ToLower() == "true".ToLower())))
 				{
 					// 非淋巴结的长径
-					result += decimal.Parse(item.TableQuestionList.Where(x => x.QuestionMark == QuestionMark.MajorAxis).Select(x => x.Answer).FirstOrDefault() ?? "0");
+					result += decimal.Parse(item.TableQuestionList.Where(x => x.QuestionMark == QuestionMark.MajorAxis).Select(x => x.Answer).FirstOrDefault().IsNullOrEmptyReturn0());
 				}
 			}
 
@@ -288,7 +289,7 @@ namespace IRaCIS.Core.Application.Service
 				if (item.TableQuestionList.Any(x => x.QuestionMark == QuestionMark.IsLymph && (x.Answer == "是" || x.Answer.ToLower() == "false".ToLower())))
 				{
 					// 非淋巴结的长径
-					result += decimal.Parse(item.TableQuestionList.Where(x => x.QuestionMark == QuestionMark.MajorAxis).Select(x => x.Answer).FirstOrDefault() ?? "0");
+					result += decimal.Parse(item.TableQuestionList.Where(x => x.QuestionMark == QuestionMark.MajorAxis).Select(x => x.Answer).FirstOrDefault().IsNullOrEmptyReturn0());
 				}
 			}
 
@@ -434,10 +435,10 @@ namespace IRaCIS.Core.Application.Service
 			var isExists = false;
 			foreach (var item in rowIndexs)
 			{
-				var lastValue = decimal.Parse(lastQuestionAsnwer.Where(x => x.RowIndex == item && x.ReadingTableQuestionTrial.QuestionMark == QuestionMark.ShortAxis).Select(x => x.Answer).FirstOrDefault() ?? "0");
+				var lastValue = decimal.Parse(lastQuestionAsnwer.Where(x => x.RowIndex == item && x.ReadingTableQuestionTrial.QuestionMark == QuestionMark.ShortAxis).Select(x => x.Answer).FirstOrDefault().IsNullOrEmptyReturn0());
 
 				var thisRowData = thisQuestionAsnwer.Where(x => x.RowIndex == item).SelectMany(x => x.TableQuestionList).ToList();
-				var thisValue = decimal.Parse(thisRowData.Where(x => x.QuestionMark == QuestionMark.ShortAxis).Select(x => x.Answer).FirstOrDefault() ?? "0");
+				var thisValue = decimal.Parse(thisRowData.Where(x => x.QuestionMark == QuestionMark.ShortAxis).Select(x => x.Answer).FirstOrDefault().IsNullOrEmptyReturn0());
 
 				if (thisValue - lastValue > 5)
 				{
@@ -504,7 +505,7 @@ namespace IRaCIS.Core.Application.Service
 																   .Select(x => x.Id).FirstOrDefaultAsync();
 
 
-			var baseLineSOD = decimal.Parse(await _readingTaskQuestionAnswerRepository.Where(x => x.VisitTaskId == baseLineTaskId && x.ReadingQuestionTrial.QuestionType == QuestionType.SOD).Select(x => x.Answer).FirstOrDefaultAsync() ?? "0");
+			var baseLineSOD = decimal.Parse((await _readingTaskQuestionAnswerRepository.Where(x => x.VisitTaskId == baseLineTaskId && x.ReadingQuestionTrial.QuestionType == QuestionType.SOD).Select(x => x.Answer).FirstOrDefaultAsync()).IsNullOrEmptyReturn0());
 			return baseLineSOD;
 		}
 		#endregion
@@ -528,7 +529,7 @@ namespace IRaCIS.Core.Application.Service
 			var decimalAnswerList = answerList.Select(x => new VisitTaskAnswerInfo
 			{
 				VisitName = x.VisitName,
-				SOD = decimal.Parse(x.SOD ?? "0"),
+				SOD = decimal.Parse(x.SOD.IsNullOrEmptyReturn0()),
 			}).ToList();
 
 			return decimalAnswerList;
diff --git a/IRaCIS.Core.Infra.EFCore/Common/ReadingCommon.cs b/IRaCIS.Core.Infra.EFCore/Common/ReadingCommon.cs
index 8c679c9f6..f02fe9c2c 100644
--- a/IRaCIS.Core.Infra.EFCore/Common/ReadingCommon.cs
+++ b/IRaCIS.Core.Infra.EFCore/Common/ReadingCommon.cs
@@ -38,7 +38,20 @@ namespace IRaCIS.Core.Infra.EFCore.Common
             }
         }
 
-     
+        public static string IsNullOrEmptyReturn0(this string value)
+        {
+            if (value == null || value == string.Empty)
+            {
+                return "0";
+               
+            }
+            else
+            {
+                return value;
+            }
+        }
+
+
 
         /// <summary>
         /// 获取DisplayName