Accuracy of Magnetic Resonance Imaging in Prenatal Diagnosis of Choledochal Cysts: A Single-Center Retrospective Analysis
Table 2
MRI diagnosis results of 18 fetus with CDC.
No
Gender
Prenatal MRI
Postnatal MRCP
Time of MRI
Cyst (long × width) cm
GB (long × width) cm
Sign A
Sign B
Sign C
Sign D
Sign E
Sign F
Tapered sign
Type of todani
Age of MRCP
Cyst (long × width) cm
GB (long × width) cm
Sign A
Sign B
Sign C
Sign D
Sign E
Sign F
Tapered sign
Type of todani
Diagnosis results
1
M
G22+
2.5 × 3.3
1.0 × 0.7
+
−
+
+
+
−
−
Type 1
7 d
5.3 × 6.6
1.1 × 0.7
+
−
−
+
+
−
−
Type 1
CDC
2
M
G21+
1.6 × 1.8
1.0 × 0.8
+
+
+
+
+
−
+
Type 1
30 d
3.2 × 5.4
1.1 × 1.0
+
+
−
+
+
+
−
Type 4
CDC
3
M
G26+
1.3 × 1.9
1.6 × 0.9
+
+
+
+
+
−
−
Type 1
30 d
1.5 × 4.2
1.5 × 0.8
+
−
+
+
+
−
−
Type 1
CDC
4
F
G25+
1.0 × 1.8
0.6 × 0.3
+
+
+
+
+
−
−
Type 1
90 d
2.3 × 4.1
1.3 × 0.9
+
−
+
+
+
−
−
Type 1
CDC
5
M
G24+
0.7 × 2.5
0.9 × 0.6
+
−
−
+
+
−
−
Type 1
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Normal
6
F
G29+
0.9 × 1.1
2.7 × 0.3
+
+
+
−
−
−
−
Type 1
35 d
0.8 × 1.0
NA
+
+
+
+
+
−
−
NA
BA
7
F
G24+
1.6 × 2.1
0.9 × 0.7
+
+
+
+
+
−
−
Type 1
6 d
2.1 × 5.5
1.2 × 0.9
−
−
−
+
+
+
−
Type 4
CDC
8
F
G23+
1.7 × 2.6
0.8 × 0.6
+
+
+
+
+
+
−
Type 4
16 d
3 × 1.5
0.9 × 0.5
+
+
+
+
+
+
+
NA
BA
9
F
G21+
1.7 × 1.9
0.7 × 0.7
+
+
+
+
+
−
−
Type 1
30 d
1.8 × 2.2
0.8 × 0.7
+
+
+
+
+
−
−
Type 1
CDC
10
F
G32+
4.1 × 4.8
2.6 × 1.5
−
−
+
−
+
−
+
Type 1
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Normal
11
F
G29+
2.1 × 2.2
0.7 × 0.6
+
+
+
+
+
−
−
Type 1
4 d
3.8 × 6.0
1.6 × 0.6
−
−
−
+
+
−
−
Type 1
CDC
12
F
G29+
1.4 × 2.2
0.9 × 0.9
+
+
+
+
+
−
+
Type 1
210 d
7.0 × 8.5
2.1 × 1.0
+
−
−
+
+
+
−
Type 4
CDC
13
M
G31+
1.5 × 1.5
1.3 × 0.8
+
+
+
+
+
−
−
Type 1
26 d
2.1 × 3.4
1.0 × 0.7
+
+
+
+
+
−
−
Type 1
CDC
14
F
G34+
1.5 × 1.9
1.4 × 0.8
+
+
+
+
+
−
−
Type 1
NA
2.3 × 1.5
0.6 × 0.7
NA
NA
NA
NA
NA
NA
NA
Type 1
CDC
15
F
G38+
2.3 × 2.3
0.9 × 0.6
+
+
+
+
+
−
+
Type 1
300 d
5.3 × 5.0
3.5 × 1.0
+
−
−
+
+
+
−
Type 4
CDC
16
M
G35+
2.4 × 4.6
0.9 × 0.6
+
−
+
+
+
−
−
Type 1
7 d
6.4 × 9.2
0.8 × 0.5
−
−
−
+
+
−
−
Type 1
CDC
17
F
G32
1.6 × 2.7
0.8 × 0.6
+
+
+
+
+
−
−
Type 1
3 d
3.2 × 2.1
1.0 × 0.7
+
+
+
+
+
−
+
Type 1
CDC
18
M
G33
2.3 × 1.5
0.7 × 0.6
+
+
+
+
+
−
−
Type 1
480 d
3.3 × 2.6
1.6 × 1.4
+
+
+
+
+
−
−
Type 1
CDC
Note. the number came from the ultrasound report when the CDC rupture; Sign A: the cyst was located at the porta hepatis; Sign B: the end of the cyst is higher than the lowest edge of the liver; Sign C: parallel to the hepatoduodenal ligament; Sign D: the cyst was connected to the hepatic ducts; Sign E: the cyst was connected to the GB/duct of GB; Sign F: dilated intrahepatic bile ducts (left and right hepatic ducts).
