Keywords:
Congenital, Cancer, Diagnostic procedure, Ultrasound-Colour Doppler, Ultrasound, MR, Paediatric, Oncology, Eyes
Authors:
K. F. Farooq1, S. B. Owais2, N. J. Saghir2; 1Islamabad /PK, 2Islamabad/PK
DOI:
10.26044/ecr2019/C-1393
Results
When comparing the findings of ultrasound and MRI,
diagnosis of PHPV by ultrasound is comparable to that of MRI.
Ultrasound was unable to detect only 1 case where retrolental membrane was visualized on MRI as shown in Table 01.
Ultrasound was able to detect 31 cases of orbital mass while the number of cases detected by MRI was 39 as shown in Table 02.
Ultrasound out performed MRI in detection of calcification as seen in Table 03 where 24 cases picked by ultrasound were not detected by MRI.
When comparing the final diagnosis of ultrasound with that made by MRI for differentiating retinoblastoma from PHPV the Sensitivity was = 97.14%,
Specificity = 100.0%,
PPV = 100.0%,
NPV = 95.45% and Diagnostic Accuracy = 98.21% based on the results shown in Table 04.
Table 01. Ultrasound & MRI findings in detecting retrolental membrane
|
|
MRI membrane
|
Total
|
positive
|
negative
|
Ultrasound membrane
|
positive
|
|
19
|
2
|
21
|
negative
|
|
1
|
34
|
35
|
Total
|
|
20
|
36
|
56
|
|
|
|
|
Table 02. Ultrasound & MRI findings in detecting orbital mass
|
|
MRI Mass Findings
|
Total
|
positive
|
negative
|
Ultrasound Mass Findings
|
positive
|
|
31
|
3
|
34
|
negative
|
|
8
|
14
|
22
|
Total
|
|
39
|
17
|
56
|
|
|
|
|
Table 03. Ultrasound & MRI findings in detecting calcification
|
|
MRI Calcification
|
Total
|
positive
|
negative
|
Ultrasound Calcification
|
positive
|
|
9
|
24
|
33
|
negative
|
|
1
|
22
|
23
|
Total
|
|
10
|
46
|
56
|
|
|
|
|
Table 04. Ultrasound & MRI findings in detecting Retinoblastoma & PHPV
|
|
|
MRI Findings
|
Total
|
Retinoblastoma
|
PHPV
|
Ultrasound Findings
|
Retinoblastoma
|
|
|
|
|
|
34
(97.1%)
|
0
(0.0%)
|
34
|
PHPV
|
|
1
(2.9%)
|
21
(100.0%)
|
22
|
|
|
|
|
Total
|
|
35
|
21
|
56
|
|
|
|
|