up dv3d

atlas/models.py

@@ -158,8 +158,35 @@ def _build_declared_series_groups(series, series_images_with_urls):
                         return normalized
             return ""
 
+        def get_private_b_value():
+            # Siemens private (0019,100C)
+            try:
+                elem = ds.get((0x0019, 0x100C))
+                if elem is not None:
+                    normalized = _normalise_group_rule_value(getattr(elem, "value", elem))
+                    if normalized != "":
+                        return normalized
+            except Exception:
+                pass
+
+            # GE private (0043,1039) can be "b\something" format
+            try:
+                elem = ds.get((0x0043, 0x1039))
+                if elem is not None:
+                    raw = getattr(elem, "value", elem)
+                    if isinstance(raw, pydicom.multival.MultiValue):
+                        raw = raw[0] if len(raw) > 0 else ""
+                    text = str(raw).split("\\")[0].strip()
+                    normalized = _normalise_group_rule_value(text)
+                    if normalized != "":
+                        return normalized
+            except Exception:
+                pass
+
+            return ""
+
         rule_values = {
-            "dwiBValue": get_value("DiffusionBValue", "DiffusionbValue"),
+            "dwiBValue": get_value("DiffusionBValue", "DiffusionbValue") or get_private_b_value(),
             "dwiDirection": get_value("DiffusionGradientDirection", "DiffusionGradientOrientation"),
             "temporalPosition": get_value("TemporalPositionIdentifier"),
             "triggerTime": get_value("TriggerTime"),