Ann Hepatobiliary Pancreat Surg.  2022 Nov;26(4):308-312. 10.14701/ahbps.22-030.

Preoperative estimation of hemi-liver volume using standard liver volume and portal vein diameter ratio in living donor liver transplantation

• Kim SM
• Ageel AH
• Hwang S
• Jung DH
• Ha TY
• Song GW
• Park GC
• Ahn CS
• Moon DB

• KMID: 2536379
• DOI: http://doi.org/10.14701/ahbps.22-030

Abstract

Backgrounds/Aims
Although body surface area (BSA)-based standard liver volume (SLV) formulae have been used for living donor liver transplantation and hepatic resection, hemi-liver volume (HLV) is needed more frequently. HLV can be assessed using right or left portal vein diameter (RPVD or LPVD). The aim of this study was to validate the reliability of using portal vein diameter ratio (PVDR) for assessing HLV in living liver donors.
Methods
This study included 92 living liver donors (59 males and 33 females) who underwent surgery between January 2020 and December 2020. Computed tomography (CT) images were used for measurements.
Results
Mean age of donors was 35.5 ± 7.2 years. CT volumetry-measured total liver volume (TLV), right HLV, left HLV, and percentage of right HLV in TLV were 1,442.9 ± 314.2 mL, 931.5 ± 206.4 mL, 551.4 ± 126.5 mL, and 64.6% ± 3.6%, respectively. RPVD, LPVD, and main portal vein diameter were 12.2 ± 1.5 mm, 10.0 ± 1.3 mm, and 15.3 ± 1.7 mm, respectively (corresponding square values: 149.9 ± 36.9 mm² , 101.5 ± 25.2 mm² , and 237.2 ± 52.2 mm² , respectively). The sum of RPVD² and LPVD² was 251.1 ± 56.9 mm² . BSA-based SLV was 1,279.5 ± 188.7 mL (error rate: 9.1% ± 14.4%). SLV formula- and PVDR-based right HLV was 760.0 ± 130.7 mL (error rate: 16.2% ± 13.3%).
Conclusions
Combining BSA-based SLV and PVDR appears to be a simple method to predict right or left HLV in living donors or split liver transplantation.

Keyword

Standard liver volume; Body surface area; Portal vein; Hemi-liver volume; Living donor liver transplantation

Figure

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  Fig. 1 A scatter plot showing the correlation between portal vein diameter ratio (PVDR) and percentage of volumetric right hemi-liver volume (HLV) in total liver volume.

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  Fig. 2 Comparison of total liver volume estimated by actual computed tomography (CT) volumetry and body surface area (BSA)-based formula for standard liver volume. Boxes indicate the range of standard deviation.

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  Fig. 3 A scatter plot showing correlation between right hemi-liver volume (HLV) estimated by combining standard liver volume (SLV) and portal vein diameter ratio (PVDR) and volumetric right HLV.

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