diff --git a/IRaCIS.Core.Application/Service/ReadingCalculate/PCWG3CalculateService.cs b/IRaCIS.Core.Application/Service/ReadingCalculate/PCWG3CalculateService.cs
index 6800103b7..d78ac77a5 100644
--- a/IRaCIS.Core.Application/Service/ReadingCalculate/PCWG3CalculateService.cs
+++ b/IRaCIS.Core.Application/Service/ReadingCalculate/PCWG3CalculateService.cs
@@ -752,7 +752,7 @@ namespace IRaCIS.Core.Application.Service.ReadingCalculate
 
             if (lastTask != null)
             {
-                var lastTasknewLesionsCount = int.Parse(await _readingTaskQuestionAnswerRepository.Where(x => x.VisitTaskId == lastTask.VisitTaskId && x.ReadingQuestionTrialId == newLesionsCountQuestionId).Select(x => x.Answer).FirstOrDefaultAsync() ?? "0");
+                var lastTasknewLesionsCount = (await _readingTaskQuestionAnswerRepository.Where(x => x.VisitTaskId == lastTask.VisitTaskId && x.ReadingQuestionTrialId == newLesionsCountQuestionId).Select(x => x.Answer).FirstOrDefaultAsync()).IsNullOrEmptyReturn0();
                 if (lastTask.VisitTaskNum == 1m)
                 {
                     //基线后第二个访视（应满足访视间隔6周以上，否则顺延）
@@ -761,12 +761,12 @@ namespace IRaCIS.Core.Application.Service.ReadingCalculate
                     {
 
                         // 第二访视数量
-                        var secondVisitLesionsCount = int.Parse(await _readingTaskQuestionAnswerRepository.Where(x => x.VisitTaskId == lastTask.VisitTaskId && x.ReadingQuestionTrialId == newLesionsCountQuestionId).Select(x => x.Answer).FirstOrDefaultAsync() ?? "0");
+                        var secondVisitLesionsCount = (await _readingTaskQuestionAnswerRepository.Where(x => x.VisitTaskId == lastTask.VisitTaskId && x.ReadingQuestionTrialId == newLesionsCountQuestionId).Select(x => x.Answer).FirstOrDefaultAsync()).IsNullOrEmptyReturn0();
 
                         // 判断是否是当前访视
                         if (secondVisit.VisitTaskId == inDto.VisitTaskId)
                         {
-                            secondVisitLesionsCount = int.Parse(inDto.QuestionInfo.Where(x => x.QuestionType == QuestionType.NewLesionsCount).Select(x => x.Answer).FirstOrDefault() ?? "0");
+                            secondVisitLesionsCount = (inDto.QuestionInfo.Where(x => x.QuestionType == QuestionType.NewLesionsCount).Select(x => x.Answer).FirstOrDefault()).IsNullOrEmptyReturn0();
                         }
 
                         if (lastTasknewLesionsCount >= 2 && secondVisitLesionsCount >= 2)
@@ -778,7 +778,7 @@ namespace IRaCIS.Core.Application.Service.ReadingCalculate
                 }
                 else
                 {
-                    var thisVisitTaskNewLesionsCount= int.Parse(inDto.QuestionInfo.Where(x => x.QuestionType == QuestionType.NewLesionsCount).Select(x => x.Answer).FirstOrDefault() ?? "0");
+                    var thisVisitTaskNewLesionsCount= (inDto.QuestionInfo.Where(x => x.QuestionType == QuestionType.NewLesionsCount).Select(x => x.Answer).FirstOrDefault()).IsNullOrEmptyReturn0();
 
                     var thisVisitTask = taskList.LastOrDefault();