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Figure 2: (a) Doppler ultrasound of the hepatic vein shows the triphasic waveform (scope: GF-UCT180, Olympus Medical Systems, Tokyo, Japan; ultrasound processer: Aloka ProSound Alpha10, Aloka Co., Ltd., Tokyo, Japan). (b) Doppler ultrasound of the portal vein shows the undulating (monophasic) pattern (scope: GF-UCT180, Olympus Medical Systems, Tokyo, Japan; ultrasound processer: Aloka ProSound Alpha10, Aloka Co., Ltd., Tokyo, Japan). (c) EUS-guided portal pressure gradient measurement. The middle hepatic vein (MHV) is punctured by a 25G FNA needle via the transgastric route. IVC, inferior vena cava; Lig. venos, ligamentum venosum (scope: GF-UCT180, Olympus Medical Systems, Tokyo, Japan; ultrasound processer: Aloka ProSound Alpha10, Aloka Co., Ltd., Tokyo, Japan)

Figure 2: (a) Doppler ultrasound of the hepatic vein shows the triphasic waveform (scope: GF-UCT180, Olympus Medical Systems, Tokyo, Japan; ultrasound processer: Aloka ProSound Alpha10, Aloka Co., Ltd., Tokyo, Japan). (b) Doppler ultrasound of the portal vein shows the undulating (monophasic) pattern (scope: GF-UCT180, Olympus Medical Systems, Tokyo, Japan; ultrasound processer: Aloka ProSound Alpha10, Aloka Co., Ltd., Tokyo, Japan). (c) EUS-guided portal pressure gradient measurement. The middle hepatic vein (MHV) is punctured by a 25G FNA needle via the transgastric route. IVC, inferior vena cava; Lig. venos, ligamentum venosum (scope: GF-UCT180, Olympus Medical Systems, Tokyo, Japan; ultrasound processer: Aloka ProSound Alpha10, Aloka Co., Ltd., Tokyo, Japan)