air HU threshold widened

jrkerns · Jan 24, 2019 · b24b6a7 · b24b6a7
1 parent a4bb9d0
commit b24b6a7
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/pylinac/ct.py b/pylinac/ct.py
@@ -1131,7 +1131,7 @@ def find_phantom_roll(self):
         """
         def is_right_area(region):
             thresh = np.pi * ((self.air_bubble_radius_mm / self.mm_per_pixel) ** 2)
-            return thresh * 1.5 > region.filled_area > thresh / 1.5
+            return thresh * 2 > region.filled_area > thresh / 2
 
         def is_right_eccentricity(region):
             return region.eccentricity < 0.5