Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Signed-off-by: Siddhardha Nanda <99672439+SID-6921@users.noreply.github.com>

Author: SID-6921

tests/data/test_init_reader.py

@@ -125,15 +125,15 @@ def test_pydicom_reader_get_affine_multi_slice_uses_last_position(self):
             "00200037": {"Value": [1.0, 0.0, 0.0, 0.0, 1.0, 0.0]},
             "00200032": {"Value": [0.0, 0.0, 0.0]},
             "00280030": {"Value": [1.0, 1.0]},
-            "lastImagePositionPatient": np.array([0.0, 0.0, 4.0]),
+            "lastImagePositionPatient": np.array([0.0, 0.0, 8.0]),
             MetaKeys.SPATIAL_SHAPE: np.array([8, 8, 5]),
         }
 
         affine = reader._get_affine(metadata, lps_to_ras=False)
 
         np.testing.assert_allclose(affine[0, 2], 0.0)
         np.testing.assert_allclose(affine[1, 2], 0.0)
-        np.testing.assert_allclose(affine[2, 2], 1.0)
+        np.testing.assert_allclose(affine[2, 2], 2.0)
 
 
 if __name__ == "__main__":