diff --git a/platform/core/src/DICOMSR/utils/findMostRecentStructuredReport.js b/platform/core/src/DICOMSR/utils/findMostRecentStructuredReport.js
index 9df728ed1..75b855a99 100644
--- a/platform/core/src/DICOMSR/utils/findMostRecentStructuredReport.js
+++ b/platform/core/src/DICOMSR/utils/findMostRecentStructuredReport.js
@@ -13,7 +13,7 @@ const findMostRecentStructuredReport = studies => {
       // Skip series that may not have instances yet
       // This can happen if we have retrieved just the initial
       // details about the series via QIDO-RS, but not the full metadata
-      if (!series.instances || !series.instances.length) {
+      if (!series || series.getInstanceCount() === 0) {
         return;
       }