Crosslinking MRI with Histopathology: Cross-Sectional Analysis to Assess the Effectiveness in the Identification of Benign and Malignant Tumors

Authors

  • Maham Nasir Department of Medical Imaging & Ultrasonography, School of Health Sciences, University of Management and Technology, Lahore, Pakistan
  • Tamsal Hameed Department of Medical Imaging & Ultrasonography, School of Health Sciences, University of Management and Technology, Lahore, Pakistan
  • Sadia Sana School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia
  • Yasmin Mushtaq Department of Radiology, Dalian Medical University, Dalian, China
  • Muhammad Nouman University Institute of Food Science and Technology, The University of Lahore, Lahore, Pakistan

DOI:

https://doi.org/10.31580/pjmls.v7i3.3144

Keywords:

Benign pathology on the orbit, Diagnostic reality, Histopathological examination, Magnetic resonance imaging, Orbital masses

Abstract

Background: Orbital masses including benign and malignant tumors are still an important diagnostic and therapeutic problem. Magnetic Resonance Imaging MRI has played a crucial role in the non-invasive assessment of these lesions, on account of its better soft tissue resolution and planar detail. The association between MRI and histopathological characteristics is still vital in reaching the correct management decisions.

Objective: In this study, MRI was assessed for its ability to diagnose the location of orbital masses specifically distinguishing between malignant and benign forms of tumors histopathological results were used as a standard of reference.

Methods: After study approval, this cross-sectional prospective study (June- November 2022) was done inter-collaboratively at Teaching Hospital, University of Lahore, Shalimar Hospital Lahore in affiliation with private medical diagnostic centers in Lahore. Using non-probability sequential sampling technique, 145 patients diagnosed with clinical symptoms pointing at orbital mass, who were to undertake surgery or biopsy, were selected. MRI scans were done using a 1.5 enhanced MR machine. The overall accuracy of MRI in diagnosing the orbital masses was assessed using the following parameters; sensitivity, specificity, PPV, NPV, and diagnostic accuracy all in comparison to histopathological prognostications.

Results: While 145 admitted patients were involved in the study, 55.2% of the patients were females while the remainder (44.8%) were male, and the patient ages were mostly 18-30 years (87.6%). MRI successfully detected 77.2 percent of cancer cases as malignant, and 22.8 percent as benign, whereas histopathological examination revealed 83.4 percent as malignant, and 16.6 percent as benign. Diagnostic performance assessment of MRI for benign masses revealed 81.82% sensitivity, 96.43% specificity, 87.10% of PPV, 94.74% of NPV, and an overall 93.10% accuracy. MRI in malignant masses showed sensitivity 90.16%, specificity 86.90%, PPV 83.33%, NPV 92.41% and diagnostic efficiency 88.28%.

Conclusion: In this study, high diagnostic accuracy is shown for MRI in distinguishing benign from malignant orbital masses, but this study is limited by its single center design and a relatively homogeneous patient population, not allowing generalization of these results. These findings need further studies across different centers with different demographics to be confirmed and the applicability of MRI diagnostics to further be improved in the settings of other clinical teams.

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Published

2024-09-30

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Research Article