DIAGNOSTIC ACCURACY OF CONTRAST ENHANCED ULTRASONOGRAPHY IN FOCAL LIVER LESIONS DETECTED BY CONTRAST ENHANCED COMPUTED TOMOGRAPHY

Abstract

Context: Contrast enhanced Ultrasonography(CEUS) has improved the detection and characterization of focal liver lesions, offering comparable results to those with contrast CT when ultra-sound exploration is technically satisfactory.The vascular property of the lesion in arterial, portal and delayed phases by enhancement and washout is used in this technique. Aim: The aim of the study is to interpret the use of contrast-enhanced ultra-sound (CEUS) in characterising the focal liver lesions and compare the diagnostic accuracy of the contrast-enhanced ultra-sound with contrast enhanced CT Materials and Methods: This is a cross sectional analytical study in patients with focal liver lesions detected by USG/CECT coming to Department of Radio diagnosis in Government Stanley Hospital.The duration of the study is two and a half years from January 2017 to July 2019.Sample Size was total of 51 patients detected by CECT /USG as focal liver lesions registered in Govt. Stanley Medical College Hospital between January 2017 to July 2019. Results: Diagnostic accuracy for CEUS is 76.46 % and CECT is 83.9%. Sensitivity, specificity , PPV ,NPV and Diagnostic accuracy of the CEUS is almost near equal or comparable with that of CECT. Conclusion: CEUS has ability to detect and characterise of focal liver lesions with no risk of radiation exposure and aids in real time imaging assessment.The study parameters like sensitivity, specificity and diagnostic accuracy of the CEUS are comparable with that of CECT.CEUS can be used to characterise the focal liver lesions in patients where CECT is contraindicated.