Eisha Tahir, Naseera Khanum, Shazia Muzammil, Amna Malik.
To Determine Positive Predictive Value of Magnetic Resonance Imaging in Detection of Retinoblastoma Taking Histopathology as a Gold Standard.
Pak J Med Health Sci Jan ;12(2):524-5.

Aim: To determine the positive predictive value of magnetic resonance imaging in the detection of retinoblastoma taking histopathology as gold standard Study design: Descriptive Cross-Sectional in department of Diagnostic Radiology, Children’s Hospital, Lahore. Duration: From 07-05-2012 to 06-11-2012. Methodology: A total of 150 cases were included in this study. Mean age of the patients was 23.61+-7.49 months. Standard MRI technique of orbit for evaluation of patients of retinoblastoma was included, comprising T1W and T2W images with axial and sagittal reformatting. Results: True positive cases were 109 (72 .6%) and false positive cases were 41 (27.4 %). Positive predictive value was 72.6 %. Conclusion: MRI has high positive predictive value in the detection of retinoblastoma taking histopathology as gold standard.

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