From f211ef1d711e1f9d8cd0262d5f72a3a87ec901a8 Mon Sep 17 00:00:00 2001
From: YunLiu <55491388+KumoLiu@users.noreply.github.com>
Date: Tue, 16 Jul 2024 13:15:22 +0800
Subject: [PATCH] fix #7918

Signed-off-by: YunLiu <55491388+KumoLiu@users.noreply.github.com>
---
 monai/data/wsi_reader.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/monai/data/wsi_reader.py b/monai/data/wsi_reader.py
index 96d84d8cf1..2a4fe9f7a8 100644
--- a/monai/data/wsi_reader.py
+++ b/monai/data/wsi_reader.py
@@ -1097,7 +1097,7 @@ def get_mpp(self, wsi, level: int) -> tuple[float, float]:
         ):
             unit = wsi.pages[level].tags.get("ResolutionUnit")
             if unit is not None:
-                unit = str(unit.value)[8:]
+                unit = str(unit.value.name)
             if unit is None or len(unit) == 0:
                 warnings.warn("The resolution unit is missing. `micrometer` will be used as default.")
                 unit = "micrometer"