Observations on the Major Radicles of the Extrahepatic Portal Systems

Depiction of Variants of the Portal Confluence Venous System Using Multidetector Row CT: Analysis of 916 Cases

“…Douglass et al [13] Gilfillan et al [10] Purcell et al [14] Barry et al [11] Sow et al [15] Graf et al [6] Zhang et al [16] present study …”

“…The table depicts the results of the present study and seven precursory studies indicating publishing year, number of cases, method utilized and the leading ethnicity of the patient population. Purcell et al [14] described a variant with two IMVs, entering the SV and the SMV, respectively.…”

“…Angegeben ist jeweils das Jahr der Veröffentlichung, Fallzahl, angewandte Methode sowie die Hauptethnizität der Patientenpopulation. Purcell et al [14] beschrieben eine Variante mit zwei inferioren Mesenterialvenen, von denen eine in die SV und die andere in die SMV mündet.…”

Influences of Anatomorphological Features of the Portal Venous System on Postsplenectomy Hemodynamic Characteristics in Patients With Portal Hypertension: A Computational Model-Based Study

“…Anatomically, the SMV always connects to the splenoportal junction, but the connecting positions of the LGV and IMV vary among individuals (Khamanarong et al, 2016). For instance, blood flow from the LGV may drain into the SV (i.e., LGV-SV connection), or into the PV (i.e., LGV-PV connection); while blood flow from the IMV may drain into the SV (i.e., IMV-SV connection), or into the SMV (i.e., IMV-SMV connection) (Purcell et al, 1951;Graf et al, 1997;Zhang et al, 2007;Sakaguchi et al, 2010;Zhou et al, 2014;Khamanarong et al, 2016). The probabilities of these connections differ among populations in different regions (see the data summarized in Table 1).…”

“…For the angle between the SV and LGV/IMV, and the distance between the splenoportal junction and LGV/IMV, relevant clinical data were absent and were herein estimated empirically according to medical images reported in the literature (Sakaguchi et al, 2010). The diameters and lengths of the PV and its tributaries in the baseline model were assigned based on the mean values of the data reported in different clinical studies (Gilfillan, 1950;Purcell et al, 1951;Matsutani et al, 1993;Ito et al, 2000;Zhang et al, 2007Zhang et al, , 2009Zhou et al, 2014;Wei et al, 2017) (see Table 2). The baseline model, by default, represents the intact PVS before splenectomy where the proximal end of the SV is open to blood flow from the spleen, and it was modified to represent the postsplenectomy PVS by closing the proximal end of the SV (see Figure 1) to mimic the ligation of the residual SV near the hilus of spleen after surgical resection of the spleen.…”