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Erschienen in:

01.08.2013

Intrahepatic cholangiocarcinoma: relationship between tumor imaging enhancement by measuring attenuation and clinicopathologic characteristics

verfasst von: Atsushi Nanashima, Takafumi Abo, Goushi Murakami, Aya Matsumoto, Kazuo Tou, Hiroaki Takeshita, Masaki Kunizaki, Shigekazu Hidaka, Ichiro Sakamoto, Hideyuki Hayashi, Toru Fukuda, Takashi Kudo, Takeshi Nagayasu

Erschienen in: Abdominal Radiology | Ausgabe 4/2013

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Abstract

Purpose

Arterial enhancement of intrahepatic cholangiocarcinoma (ICC) has been noted. To precisely identify the characteristics of tumor enhancement patterns, we examined the relationship between CT attenuation in the tumor and clinicopathological parameters or prognosis.

Methods

Subjects were 42 ICC patients who had undergone hepatectomy. microvessel density (MVD) determined by CD34 staining was compared with imaging. Attenuation was calculated in images from multidetector CT of tumor and non-tumorous regions. Enhancement patterns were divided into two groups: arterial enhancement with higher attenuation (>16 HU; Hyper group, n = 12); and arterial enhancement with lower attenuation (Hypo group, n = 30).

Results

Univariate analysis identified high tumor marker level, increased size, less-differentiation, incomplete resection, increased bleeding, and lower MVD as significantly associated with poor survival (p < 0.05). Increased attenuation throughout the whole ICC correlated significantly with radiological findings and MVD. Concomitant hepatitis, well-differentiation, and smaller tumor were more significantly frequent in the Hyper group than in the Hypo group (p < 0.05). Postoperative early recurrence was significantly less frequent in the Hyper group, and overall survival was significantly better in the Hyper group (p < 0.05).

Conclusions

Increased CT attenuation correlated with ICC tumor vascularity. Increased tumor enhancement in the arterial phase was associated with chronic hepatitis, lower malignancy, and better survival.

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Titel: Intrahepatic cholangiocarcinoma: relationship between tumor imaging enhancement by measuring attenuation and clinicopathologic characteristics
verfasst von: Atsushi Nanashima
Takafumi Abo
Goushi Murakami
Aya Matsumoto
Kazuo Tou
Hiroaki Takeshita
Masaki Kunizaki
Shigekazu Hidaka
Ichiro Sakamoto
Hideyuki Hayashi
Toru Fukuda
Takashi Kudo
Takeshi Nagayasu
Publikationsdatum: 01.08.2013
Verlag: Springer US
Erschienen in: Abdominal Radiology / Ausgabe 4/2013
Print ISSN: 2366-004X
Elektronische ISSN: 2366-0058
DOI: https://doi.org/10.1007/s00261-012-9974-3

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Intrahepatic cholangiocarcinoma: relationship between tumor imaging enhancement by measuring attenuation and clinicopathologic characteristics