Value of MDCT Angiography Using MIP and VRT Techniques for Determination of Tumor-Feeding Vessels in Transarterial Embolization of Hepatocellular Carcinoma

Document Type : Original Article

Authors

1 Radiology Department - National Liver institute - Menoufia University - Shebin Elkom - Menoufia - Egypt

2 Diagnostic and interventional medical imaging Department, National liver institute, Menoufia University

3 Interventional and Diagnostic Radiology Department, National Liver Institute, Menoufia University, Shebin Elkom, Menoufia, Egypt

4 Interventional and Diagnostic Radiology Department, National Liver Institute, Egypt

Abstract

Background: Transarterial chemoembolization [TACE] is a widely accepted palliative therapeutic approach for patients with intermediate-stage hepatocellular carcinoma [HCC].  
Aim of The Study: This work aimed to detect the accuracy of maximum intensity projection [MIP] and volume rendering technique [VRT] techniques in identifying tumor-feeding arteries in patients undergoing TACE of hepatocellular carcinoma.
Patients and Methods: This was a retrospective study involved 34 patients with HCC who underwent TACE at the National Liver Institute, Menoufia University, Egypt. All patients underwent triphasic dynamic multidetector computed tomography [MDCT] prior to embolization. Arterial-phase images were reformatted and reconstructed using MIP and VRT techniques for the visualization and identification of tumor-feeding vessels. The findings were compared to digital subtraction angiography [DSA], which served as the reference standard. The diagnostic performance of both imaging techniques was statistically assessed in terms of accuracy.
Results: Substantial interobserver agreement was noted for both MIP and VRT [κ=0.705 and 0.671, respectively. Detection scores using MIP were elevated than VRT [mean 1.82 and 2.05 for observers 1 and 2, respectively, vs. mean 1.11 and 1.29 for observers 1 and 2, respectively; p < 0.001]. The accuracy of MIP and VRT in detecting tumor-feeding vessels, compared to DSA, was 68.89% and 42.22%, respectively
Conclusion: MDCTA using MIP technique is significantly accurate more than VR technique in the assessment of tumor-feeding arteries. 

Keywords

Main Subjects

Files

Share

How to cite

Statistics