Synapse vincent ver 3 and ver 5

A detailed method of PVT measurement has been described previously [22 (link),23 (link)]. In brief, the thrombus volume on portal venous phase images of contrast-enhanced CT (2.5–3-mm slice thickness) was calculated using a three-dimensional image analysis system (Synapse Vincent Ver. 3 and Ver. 5; Fujifilm Medical Co., Tokyo, Japan).

PVT was confirmed by contrast-enhanced CT (CECT). We traced the thrombus on an axial CECT image and calculated the volume of the thrombus by using a three-dimensional image analysis system (Synapse Vincent Ver. 3 and Ver. 5; Fujifilm Medical Co., Tokyo, Japan). The measurement was performed by either a radiologist or a gastroenterologist.
CECT involved two stages: before anticoagulation therapy and between days 13 and 18 after treatment. PVT volume reductions were based on the following calculation: reduction of PVT (%) = {(PVT volume pretreatment − PVT volume post-treatment)/(PVT volume pretreatment)} × 100.

All patients underwent contrast-enhanced computed tomography (CECT) to evaluate for the presence of PVT. We traced the thrombus on an axial CECT image and calculated the volume of the thrombus by using a 3-dimensional image analysis system (Synapse Vincent Ver. 3 and Ver. 5; Fujifilm Medical Co., Tokyo, Japan). Effectiveness was evaluated by CECT between days 13 and 18. Measurement was confirmed by a radiology technologist and the attending physician. PVT volume reduction rate was based on the following calculation:
PVT reduction rate = {(PVT volume before treatment − volume after treatment) / (PVT volume before treatment)} × 100 (Fig. 1b).