From 24261a3dcb51e5fcafd9bc0d33496c2af7803fe3 Mon Sep 17 00:00:00 2001
From: hang <872297557@qq.com>
Date: Mon, 30 Mar 2026 10:42:17 +0800
Subject: [PATCH] =?UTF-8?q?instance=20=E7=BA=A7=E5=88=AB=E5=A2=9E=E5=8A=A0?=
 =?UTF-8?q?=E6=8E=92=E5=BA=8F-=E5=9B=9B=E4=B8=AA=E6=8E=92=E5=BA=8F?=
 =?UTF-8?q?=E6=8E=A5=E5=8F=A3=E9=83=BD=E5=B7=B2=E4=BF=AE=E6=94=B9=E5=AE=8C?=
 =?UTF-8?q?=E6=AF=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../Service/ImageAndDoc/DTO/DicomInstanceModel.cs      |  3 +++
 .../Service/ImageAndDoc/InstanceService.cs             | 10 +++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/IRaCIS.Core.Application/Service/ImageAndDoc/DTO/DicomInstanceModel.cs b/IRaCIS.Core.Application/Service/ImageAndDoc/DTO/DicomInstanceModel.cs
index a95065a2d..033e402f3 100644
--- a/IRaCIS.Core.Application/Service/ImageAndDoc/DTO/DicomInstanceModel.cs
+++ b/IRaCIS.Core.Application/Service/ImageAndDoc/DTO/DicomInstanceModel.cs
@@ -29,6 +29,9 @@
 
         public string SliceThickness { get; set; } = String.Empty;
 
+        public string ImagePositionPatient { get; set; }
+        public string ImageOrientationPatient { get; set; }
+
     }
 
 
diff --git a/IRaCIS.Core.Application/Service/ImageAndDoc/InstanceService.cs b/IRaCIS.Core.Application/Service/ImageAndDoc/InstanceService.cs
index 0377588bf..7b057c5c8 100644
--- a/IRaCIS.Core.Application/Service/ImageAndDoc/InstanceService.cs
+++ b/IRaCIS.Core.Application/Service/ImageAndDoc/InstanceService.cs
@@ -29,6 +29,14 @@ namespace IRaCIS.Core.Application.Services
                 .OrderBy(s => s.InstanceNumber).ThenBy(s => s.InstanceTime).ThenBy(s => s.CreateTime)
                 .ProjectTo<DicomInstanceDTO>(_mapper.ConfigurationProvider).ToListAsync();
 
+            // ⭐ DICOM 空间排序（带兜底）
+            var sorted = DicomSortHelper.SortSlices(
+                list,
+                x => x.ImagePositionPatient,
+                x => x.ImageOrientationPatient,
+                x => x.InstanceNumber
+            );
+
             var seriesInfo = await _instanceRepository.Where(s => s.SeriesId == seriesId).Select(t => new
             {
                 t.DicomSerie.ImageResizePath,
@@ -38,7 +46,7 @@ namespace IRaCIS.Core.Application.Services
                 t.DicomSerie.SubjectVisit.VisitName
             }).FirstOrDefaultAsync();
 
-            return ResponseOutput.Ok(list, seriesInfo);
+            return ResponseOutput.Ok(sorted, seriesInfo);
         }