diff --git a/IRaCIS.Core.Application/Service/ImageAndDoc/StudyService.cs b/IRaCIS.Core.Application/Service/ImageAndDoc/StudyService.cs
index 91fe2f383..9a636cdac 100644
--- a/IRaCIS.Core.Application/Service/ImageAndDoc/StudyService.cs
+++ b/IRaCIS.Core.Application/Service/ImageAndDoc/StudyService.cs
@@ -432,29 +432,21 @@ namespace IRaCIS.Core.Application.Service.ImageAndDoc
                         findStudy.InstanceCount += seriesItem.InstanceList.Count;
 
 
-                        if (incommand.Study.RadionuclideTotalDose != string.Empty)
+                        if (incommand.Study.RadionuclideTotalDose != string.Empty
+                            || incommand.Study.RadionuclideHalfLife != string.Empty
+                            || incommand.Study.RadiopharmaceuticalStartTime != string.Empty
+
+                            )
                         {
                             await _dicomStudyRepository.UpdatePartialFromQueryAsync(t => t.Id == findStudy.Id, u => new DicomStudy()
                             {
-                                RadionuclideTotalDose = incommand.Study.RadionuclideTotalDose
+                                RadionuclideTotalDose = incommand.Study.RadionuclideTotalDose.IsNotNullOrEmpty()? incommand.Study.RadionuclideTotalDose : findStudy.RadionuclideTotalDose,
+                                RadionuclideHalfLife = incommand.Study.RadionuclideHalfLife.IsNotNullOrEmpty() ? incommand.Study.RadionuclideHalfLife : findStudy.RadionuclideHalfLife,
+                                RadiopharmaceuticalStartTime = incommand.Study.RadiopharmaceuticalStartTime.IsNotNullOrEmpty() ? incommand.Study.RadiopharmaceuticalStartTime : findStudy.RadiopharmaceuticalStartTime
                             });
                         }
 
-                        if (incommand.Study.RadionuclideHalfLife != string.Empty)
-                        {
-                            await _dicomStudyRepository.UpdatePartialFromQueryAsync(t => t.Id == findStudy.Id, u => new DicomStudy()
-                            {
-                                RadionuclideHalfLife = incommand.Study.RadionuclideHalfLife
-                            });
-                        }
-
-                        if (incommand.Study.RadiopharmaceuticalStartTime != string.Empty)
-                        {
-                            await _dicomStudyRepository.UpdatePartialFromQueryAsync(t => t.Id == findStudy.Id, u => new DicomStudy()
-                            {
-                                RadiopharmaceuticalStartTime = incommand.Study.RadiopharmaceuticalStartTime
-                            });
-                        }
+                       
 
                     }