Variations in venous and segmental anatomy of the liver: two- and three-dimensional MR imaging in healthy volunteers.

Leeuwen, Maarten S. van; Fernandez, M.Arancha; Es, Hurwitt; Stokking, Rik; Dillon, Evan H.; Feldberg, M. A. M.

doi:10.2214/ajr.162.6.8191995

Cited by 51 publications

(25 citation statements)

References 14 publications

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“…Von Leeuwen et al (8) described the oblique right vertical plane by using twoand three-dimensional MR imaging, and they concluded that the preoperative delineation of the resection planes required consideration of the anatomic variations that exist for the segmental anatomy of the liver. Another report by von Leeuwen et al (9) clarified that the right vertical plane was tilted posteriorly, and the right hepatic vein and transverse plane did not seem to be clear landmarks. These radiologic observations were in good accordance with the results obtained in our study.…”

Section: Discussionmentioning

confidence: 96%

Analysis of the Hepatic Segments on the Isotropic Multi-planar Reformatted CT Images

Yim

Lee

Jeon

et al. 2005

J Korean Radiol Soc

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Purpose:We wanted to evaluate the diverse distribution and relation of the hepatic segments, as divided by the portal venous territories, on the isotropic multi-planar reformatted (MPR) CT images and we wanted to find their correlation to the intrahepatic venous structures. Materials and Methods: Fifty adult patients who underwent portal phase CT images and who had the normal liver contours at CT were included in our study. The portal phase images were obtained with a slice collimation and reconstruction interval of 1.25 mm, and they were reformatted in the coronal and sagittal planes with a slab thickness of 3 mm. For analysis of these MPR images, various terms were newly defined according to the portal venous territories (e.g., three vertical planes [right, middle and left] and one transverse plane and their plane angles, the transverse and longitudinal angles). Also, the dominant segments of the right lobe were newly divided into the S7-and S8-dominant types by comparing the transverse angles. The imaging analysis was then conducted for the following: (1) the diversity of the three vertical planes and the one transverse plane and their plane angles, (2) the proportion of the dominant segments of the right lobe and their relation with the plane angles, and (3) the correlation between the dominant segments and the intrahepatic venous structures. Results: The number of the S7-and the S8-dominant types was 21 and 29, respectively. The vertical and transverse planes were undulating and diverse according to the dominant segments as follows: the plane angles of the right vertical and middle vertical planes were more vertical in the S7-dominant type than in the S8-dominant type (p < 0.001). The right transverse plane angle was more horizontal in the S8-dominant type (p < 0.05). The left transverse plane angle seemed to be rather vertical than horizontal. For the intrahepatic venous structures, despite of our limited data, the anomalous intrahepatic venous structures might have some correlation with the dominant segments. Conclusion: According to our results, we suggest that the isotropic MPR images could successfully depict the vertical and transverse planes of the real hepatic segments, as divided by the portal venous territories, which were diverse according to their dominant types.

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Section: Discussionmentioning

confidence: 96%

Analysis of the Hepatic Segments on the Isotropic Multi-planar Reformatted CT Images

Yim

Lee

Jeon

et al. 2005

J Korean Radiol Soc

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“…Olguların bü-yük bir kısmında sol ve orta hepatik ven birleşerek ortak bir trunkus oluşturur, sonrasında bu ortak trunkus vasıtasıyla inferior vena kavaya açılırlar. Kaudat lobun (segment 1) ise inferior vena kavaya kendi venöz drenajı mevcuttur [22] nedenle cerrahi operasyonlarda, major hepatik venler haricindeki venlerin yanlışlıkla kesilmesi veya bağlanması, genellikle olumsuz sonuç-lar doğurmamaktadır [9]. Hepatik venöz anatomi özellikle transplantasyon öncesi dönemde verici karaciğerinde değer-lendiriliyorsa, dikkat edilmesi gereken en önem-li nokta, hemihepatektomi hattını (Cantlie hattı) belirlediği için orta hepatik venin seyridir.…”

Section: Hepatik Venöz Anatomi Ve Varyasyonlarunclassified

“…(inferior) olarak ikiye ayrılmaktadır. Gerçekte ise; bu ayrımın yapılabilmesine olanak sağla-yan ayrı portal venöz dallanmaya sahip olgular mevcut olduğu gibi, bazı bireylerde radyolojik olarak bu ayrımın yapılabilmesi mümkün değildir [9]. Karaciğerin lob ve segment anomalileri oldukça nadir görülmektedir [10].…”

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Karaciğerin ve Safra Yollarının Radyolojik Anatomisi

Başak¹,

Akan²

2016

Trd Sem

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“…A poorly developed PV8c, dorsolateral paracaval branch or PV4sup may also suggest a well-developed ventral extension. The degree of development of these portal branches can be evaluated by routine portography or cholangiography, as well as by related but more advanced 3D techniques before surgery (van Leeuwen et al, 1994;Kamiya et al, 1994;Miura et al, 1999;Nishio et al, 1999;Cho et al, 2000). Vital dye staining, as performed by Takayama et al (1991) to delineate the non-caudate paracaval portion via PV7 or PV8, may also be helpful.…”

Section: Reliability Of the Precaudate Planementioning

confidence: 99%

Location of the ventral margin of the paracaval portion of the caudate lobe of the human liver with special reference to the configuration of hepatic portal vein branches

et al. 2002

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The topographic anatomy of the ventral margin of the paracaval portion of the caudate lobe of the human liver has not been clearly described to date. To this end we hypothesize the existence of a precaudate plane, a flat or slightly curved plane defined by the ventral margins of the ligamentum venosum and the hilar plate. Using 76 cadaveric livers, we investigated whether the paracaval portion of the caudate lobe extended ventral to this plane and whether the paracaval caudate branch of the portal vein (PC) ran through this plane to its ventral side. In 28 of the specimens (36.8%), the PC extended over the plane to a variable depth: less than 10 mm in 10 specimens, 10 -20 mm in 10, and more than 20 mm in eight specimens. This ventral extension of the PC consistently included its penetration into the dome-like area under the terminals of the three major hepatic veins; therefore, the ventrally extended PC often interdigitated with these veins and their tributaries (in practice, the ventral margin of the paracaval portion of the caudate lobe could generally be considered to run alongside the middle hepatic vein). Moreover, the ventral extension of the PC often reached the upper, diaphragmatic surface or the dorsal surface of the liver immediately to the right of the inferior vena cava. Several branches (termed border branches) in the ventral extension were difficult to identify as belonging to the PC. We discuss both the marginal configuration of the paracaval portion of the caudate lobe and how to identify and operate on the ventrally extended PC and related border branches during liver surgery. Clin. Anat. 15:387-401, 2002.

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Variations in venous and segmental anatomy of the liver: two- and three-dimensional MR imaging in healthy volunteers.

Cited by 51 publications

References 14 publications

Analysis of the Hepatic Segments on the Isotropic Multi-planar Reformatted CT Images

Analysis of the Hepatic Segments on the Isotropic Multi-planar Reformatted CT Images

Karaciğerin ve Safra Yollarının Radyolojik Anatomisi

Location of the ventral margin of the paracaval portion of the caudate lobe of the human liver with special reference to the configuration of hepatic portal vein branches

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