diff --git a/Packages/lesiontracker/components/lesionTable/lesionTable.js b/Packages/lesiontracker/components/lesionTable/lesionTable.js
index dc0f4197a..2b1020645 100644
--- a/Packages/lesiontracker/components/lesionTable/lesionTable.js
+++ b/Packages/lesiontracker/components/lesionTable/lesionTable.js
@@ -222,7 +222,6 @@ Template.lesionTable.events({
         var pY = e.pageY;
         var draggableParent = $(e.currentTarget).parent();
         var startHeight = draggableParent.height();
-        //e.preventDefault();
         template.dragging.set(true);
 
         $(document).on('mouseup', function(e) {
@@ -238,21 +237,14 @@ Template.lesionTable.events({
                 height: startHeight - topPosition
             });
 
-            var contentId = Session.get("activeContentId");
             var viewportAndLesionTableHeight = $("#viewportAndLesionTable").height();
             var newPercentageHeightofLesionTable = (startHeight - topPosition) / viewportAndLesionTableHeight * 100;
             var newPercentageHeightofViewermain = 100 - newPercentageHeightofLesionTable;
             $(".viewerMain").height(newPercentageHeightofViewermain+"%");
 
             // Resize viewport
-            var elements = $('.imageViewerViewport');
-            elements.each(function(index) {
-                var element = this;
-                if (!element) {
-                    return;
-                }
-                cornerstone.resize(element, true);
-            });
+            resizeViewportElements();
+
         });
     }
 
diff --git a/Packages/lesiontracker/lib/resizeViewportElements.js b/Packages/lesiontracker/lib/resizeViewportElements.js
new file mode 100644
index 000000000..931022f24
--- /dev/null
+++ b/Packages/lesiontracker/lib/resizeViewportElements.js
@@ -0,0 +1,15 @@
+
+// Resize viewport elements
+resizeViewportElements = function() {
+    viewportResizeTimer = setTimeout(function() {
+        var elements = $('.imageViewerViewport');
+        elements.each(function(index) {
+            var element = this;
+            if (!element) {
+                return;
+            }
+            cornerstone.resize(element, true);
+        });
+    }, 1);
+
+};
\ No newline at end of file
diff --git a/Packages/lesiontracker/package.js b/Packages/lesiontracker/package.js
index 9ec7b072d..945c8c21b 100644
--- a/Packages/lesiontracker/package.js
+++ b/Packages/lesiontracker/package.js
@@ -60,9 +60,12 @@ Package.onUse(function (api) {
 
     // Library functions
     api.addFiles('lib/uuid.js', 'client');
+    api.addFiles('lib/resizeViewportElements.js', 'client');
+
 
     // Export lesionTable function for activate measurements
     api.export('activateLesion','client');
+    api.export('resizeViewportElements','client');
 
     api.export('Measurements', ['client', 'server']);
     api.export('Timepoints', ['client', 'server']);