X-ray detection of ingested non-metallic foreign bodies

Table 1 Summary of object detection by radiologists

No.	Rad 1	Rad 2	Rad 3	Rad 4	Rad 5	Object
1	+	+	+	+	+	Army figure
2	+	+	+	+	+	Clay lump
3	+	+	+	+	+	Crayon
4	+	+	+	+	+	Eraser
5	+	+	+	+	+	Glass diamond bead
6	+	+	+	+	+	Paperclip
7	-	+	-	-	+	Ring
8	+	-	-	-	-	Drywall anchor
9	-	-	-	-	-	Lego
10	-	-	-	-	-	Pink barrette
11	-	-	-	-	-	Plastic bead
12	-	-	-	-	-	Plastic bead 2
13	-	-	-	-	-	Plastic bead 3
14	-	-	-	-	-	Triangle purple plastic
x	+					“Half violin”
x		+				“Irregular elongated rectangle”
x			+			“Irregular opacity”
x				+		“Irregular opacity”
x				+		“Linear lucency”
x					+	“Irregular lucency”
x					+	“Irregular opacity”

Rad: Radiologist; +: Positive identification of object denoted; x: No object/false positive.