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【求助】散10叮当求翻译

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eagle

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问题已关闭悬赏丁当:10

1， portal fissures
直译门静脉裂隙，但具体是什么意思，不知？
2，
Given the frequency of the diaphragmatic sulci in our
survey (40%), we investigated possible predisposing
factors that might represent weak zones of the hepatic
parenchyma particularly susceptible to the mechanical
effect of the diaphragm. In radiological practice, the
course of the HVs is used to identify the boundaries
between the hepatic sectors. Therefore, the HVs con-
stitute indirect landmarks for delineation of the portal
fissures (Heiken, 1998). In our study, the radiological
findings showed a correspondence between the topo-
graphy of the sulci and the course of the right and
middle hepatic vein and their tributaries in 67%. The
corrosion casts showed the location of the sulci at the
level of the boundaries between the ramifications of
the terminal branches of the portal triad, where the
HVs are located, in 73%. In particular, the sulci corre-
sponded to the RHV in 32%, to its tributaries in 29%,
and to the MHV in 6% and its tributaries in 6%. Thus
our results indicate a relationship between the dia-
phragmatic sulci and the superficial extension of the
portal fissures. The fissures are localized at the bound-
ary between the territories of distribution of the
segmental branches of the portal vein (Couinaud, 1957).
At their level the superficial liver parenchyma is per-
fused by the terminal ramifications and since there are
no anastomoses between the blood vessels of adjacent
segments (Gupta et al. 1977), the only vessels with signifi-
cant calibre are represented by the tributaries of the
HVs, located in the depth of the fissures.