Discover how the latest advancements in medical imaging are revolutionizing liver surgery with a groundbreaking comparison between 2D imaging and 3D modeling of intrahepatic portosystemic shunts using CT angiography.
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Comparison of two-dimensional imaging to three-dimensional modeling of intrahepatic portosystemic shunts using computed tomography angiography.
Jackson et al., Vet Radiol Ultrasound 2024
DOI: 10.1111/vru.13337
Summary of Findings:
A study conducted at the University of Georgia Veterinary Teaching Hospital investigated the use of three-dimensional (3D) models for measuring the caudal vena cava (CVC) in dogs with intrahepatic portosystemic shunts (IHPSS) and compared these measurements with traditional two-dimensional (2D) imaging. The study analyzed CTA datasets from 2016 to 2022 and used software to create 3D models. Measurements of the CVC diameters and lengths were taken both in 2D and 3D, 20 mm from the shunt ostium.
Results:
- 2D dorsal and transverse CVC diameter measurements were 16.7 mm (SD 5.6) and 15.5 mm (SD 4.2) cranially; 14.9 mm (SD 4.2) and 14.3 mm (SD 3.7) caudally.
- 3D CVC diameter measurements were 15.3 mm (SD 4.4) cranially and 14.0 mm (SD 3.6) caudally.
- 2D CVC length was 61.5 mm (SD 7.1) compared to 3D length of 59.9 mm (SD 7.2).
- Intraclass correlation coefficients for comparing 2D and 3D diameters were all >0.80 (very good agreement), and for length >0.60 (good agreement).
Significance:
The study demonstrates that 3D models are consistent with 2D imaging for CVC measurements in dogs with IHPSS. This suggests that both methods can be effectively used for preprocedural planning for transcatheter interventions, offering flexibility based on clinician preference.