CT volumetry of the liver: Where does it stand in clinical practice?

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CT volumetry of the liver: Where does it stand in clinical practice? M.C. Lim, C.H. Tan, J. Cai, J. Zheng, A.W.C. Kow Clinical Radiology Volume 69, Issue 9, Pages 887-895 (September 2014) DOI: 10.1016/j.crad.2013.12.021 Copyright © 2014 The Royal College of Radiologists Terms and Conditions

Figure 1 (a) Depiction of hepatic vascular anatomy (using LiverAnalyzer). Image on the left shows hepatic arteries and portal veins whereas image on the right shows the hepatic veins. (b) Proposed resection of the right lobe graft, which includes the territory supplied by the right middle hepatic vein (using LiverAnalyzer). The estimated graft weight is 717 g. Clinical Radiology 2014 69, 887-895DOI: (10.1016/j.crad.2013.12.021) Copyright © 2014 The Royal College of Radiologists Terms and Conditions

Figure 2 Selected axial CT images of the liver before (a,b) and 10 weeks following (c,d) TACE of the tumour in the right lobe and PVE. There is hypertrophy of the left hepatic lobe. Streak artefacts are noted in the proximal right portal vein (d) as a result of embolization coils. Clinical Radiology 2014 69, 887-895DOI: (10.1016/j.crad.2013.12.021) Copyright © 2014 The Royal College of Radiologists Terms and Conditions

Figure 3 PVE. Angiography image (left) demonstrates the portal vein anatomy. The catheter is seen within a segmental branch of the right portal vein. Post-embolization image (right) shows coils within the proximal right segmental portal vein with occlusion of contrast medium flow distally. Clinical Radiology 2014 69, 887-895DOI: (10.1016/j.crad.2013.12.021) Copyright © 2014 The Royal College of Radiologists Terms and Conditions

Figure 4 Selected axial sections through the liver demonstrate manual contour tracing of the left hepatic lobe using syngo MultiModality Workplace (MMW). The MMW then generates a volumetric measurement of the area of interest. Clinical Radiology 2014 69, 887-895DOI: (10.1016/j.crad.2013.12.021) Copyright © 2014 The Royal College of Radiologists Terms and Conditions

Figure 5 Semi-automated method of assessing liver volumetry using the “random walk” technique. The liver is manually traced, followed by 3D surface reconstruction and surface evolution. Clinical Radiology 2014 69, 887-895DOI: (10.1016/j.crad.2013.12.021) Copyright © 2014 The Royal College of Radiologists Terms and Conditions