The value of ADC calculations in the assessment of the early response of hepatocellular carcinoma (HCC) to trans arterial catheter chemoembolization (TACE). | ||||
Minia Journal of Medical Research | ||||
Volume 30, Issue 2, April 2019, Page 82-90 PDF (513.49 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/mjmr.2022.221997 | ||||
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Authors | ||||
Hosny S. Abd Elghany; Mostafa M. Mostafa; Kareem S. Said Megahed | ||||
Department of Radiology, Faculty of Medicine, Minia University, Egypt | ||||
Abstract | ||||
Transcatheter arterial chemoembolization (TACE) is a well-accepted method for Treatment of unresectable hepatocellular carcinoma (HCC). Determining the success of treatment by imaging studies would help to guide subsequent therapeutic planning. Diffusion-weighted imaging (DWI) with calculation of corresponding apparent diffusion coefficient (ADC) maps can give us an impression about the extent of the tumor necrosis after TACE. Also rapid image acquisition and dispensing of contrast are considered superior pros. Objective: To investigate changes in apparent diffusion coefficient (ADC) levels pre and post TACE to monitor early therapeutic response of hepatocellular carcinoma (HCC) to transcatheter arterial chemoembolization (TACE). Patients and methods: 20 patients with 22 lesions included in the study, underwent TACE for HCC lesions, All patients had MR-DWI pre TACE and 1 month after TACE with calculation of ADC values and comparing the percentage of change in ADC level pre and post TACE in 1 month after TACE with the results of contrast enhanced Dynamic MRI 3 or 6 month after TACE based on MRECIST criteria. Results: Of about 20 patients, 22 lesions was treated, ADC levels 1 month post-operative showed 75% sensitivity, 80% specificity and about 77.27% accuracy. It was found that the specificity of degree of ADC change is maximized by gaining at least 22% increase in ADC value, and the sensitivity is maximized by gaining less than 15% increase in ADC. At these points sensitivity increased to 91.67% and specificity up to 90%. Conclusion: the calculation of percentage of change in ADC levels 1 month after TACE with addition of specific Cut off values can improve the accuracy of assessment of early response to TACE and create proper planning for achievement of treatment goals. Although larger, more definitive and quantitative studies with clinical end points are needed. | ||||
Keywords | ||||
chemoembolization; hepatocellular carcinoma; therapeutic planning | ||||
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