diff --git a/IRaCIS.Core.Application/Service/ReadingCalculate/LuganoCalculateService.cs b/IRaCIS.Core.Application/Service/ReadingCalculate/LuganoCalculateService.cs
index b8a656cf5..5224350a0 100644
--- a/IRaCIS.Core.Application/Service/ReadingCalculate/LuganoCalculateService.cs
+++ b/IRaCIS.Core.Application/Service/ReadingCalculate/LuganoCalculateService.cs
@@ -1609,7 +1609,7 @@ namespace IRaCIS.Core.Application.Service.ReadingCalculate
         public async Task<decimal> GetSPD(ReadingCalculateDto inDto)
         {
             decimal result = 0;
-            var rowInfo = inDto.QuestionInfo.Where(x => x.LesionType == LesionType.TargetLesion).SelectMany(x => x.TableRowInfoList).ToList();
+            var rowInfo = inDto.QuestionInfo.Where(x => x.LesionType == LesionType.TargetLesion).SelectMany(x => x.TableRowInfoList).Where(x=>x.RowIndex%1==0).ToList();
 
             var tableQuestionList = rowInfo.SelectMany(x => x.TableQuestionList).ToList();