Transient Heterogeneous Enhancement on Dual-Phase Helical CT of Liver

Tadashi Ishibashi; Akihiro Satoh; Hikaru Hama; Hideki Oikawa; Takayuki Yamada; Hiroyuki Abe; Haruo Saitoh; Kiyohiko Sakamoto

Transient Heterogeneous Enhancement on Dual-Phase Helical CT of Liver

Tadashi Ishibashi, Akihiro Satoh, Hikaru Hama, Hideki Oikawa, Takayuki Yamada, Hiroyuki Abe, Haruo Saitoh, Kiyohiko Sakamoto

MED - Health Sciences

Research output: Contribution to journal › Article

4 Citations (Scopus)

Abstract

Transient heterogeneous enhancement was seen on the arterial phase of dual-phase helical CT of the liver. The shape of the enhancement was appeared wedged or patchy. These phenomena without liver tumor were observed in 23 (2.3 %) of 1012 patients with suspected hepatobiliary disease. Plain CT showed no attenuation difference in the liver. Twenty-two of these 23 cases were diagnosed as scarred liver, A-P shunt caused by liver biopsy, acute cholecystitis, liver abscess, liver cirrhosis, or advanced pancreas head cancer. The diagnosis of one case was uncertain. These phenomena were thought to be caused by 1) a regional direct increase in hepatic arterial flow due to arterial-portal (A-P) shunt, or hypervascular tumor; or 2) a compensatory increase in hepatic arterial flow as a result of decreased portal venous flow caused by tumor invasion or severe liver cirrhosis.

Original language	English
Pages (from-to)	629-633
Number of pages	5
Journal	Nippon Acta Radiologica
Volume	56
Issue number	9
Publication status	Published - 1996 Aug 1

Keywords

Cirrhosis
Helical CT
Liver

ASJC Scopus subject areas

Radiology Nuclear Medicine and imaging
Oncology

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Ishibashi, T., Satoh, A., Hama, H., Oikawa, H., Yamada, T., Abe, H., Saitoh, H., & Sakamoto, K. (1996). Transient Heterogeneous Enhancement on Dual-Phase Helical CT of Liver. Nippon Acta Radiologica, 56(9), 629-633.

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abstract = "Transient heterogeneous enhancement was seen on the arterial phase of dual-phase helical CT of the liver. The shape of the enhancement was appeared wedged or patchy. These phenomena without liver tumor were observed in 23 (2.3 %) of 1012 patients with suspected hepatobiliary disease. Plain CT showed no attenuation difference in the liver. Twenty-two of these 23 cases were diagnosed as scarred liver, A-P shunt caused by liver biopsy, acute cholecystitis, liver abscess, liver cirrhosis, or advanced pancreas head cancer. The diagnosis of one case was uncertain. These phenomena were thought to be caused by 1) a regional direct increase in hepatic arterial flow due to arterial-portal (A-P) shunt, or hypervascular tumor; or 2) a compensatory increase in hepatic arterial flow as a result of decreased portal venous flow caused by tumor invasion or severe liver cirrhosis.",

keywords = "Cirrhosis, Helical CT, Liver",

author = "Tadashi Ishibashi and Akihiro Satoh and Hikaru Hama and Hideki Oikawa and Takayuki Yamada and Hiroyuki Abe and Haruo Saitoh and Kiyohiko Sakamoto",

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AU - Ishibashi, Tadashi

AU - Satoh, Akihiro

AU - Hama, Hikaru

AU - Oikawa, Hideki

AU - Yamada, Takayuki

AU - Abe, Hiroyuki

AU - Saitoh, Haruo

AU - Sakamoto, Kiyohiko

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AB - Transient heterogeneous enhancement was seen on the arterial phase of dual-phase helical CT of the liver. The shape of the enhancement was appeared wedged or patchy. These phenomena without liver tumor were observed in 23 (2.3 %) of 1012 patients with suspected hepatobiliary disease. Plain CT showed no attenuation difference in the liver. Twenty-two of these 23 cases were diagnosed as scarred liver, A-P shunt caused by liver biopsy, acute cholecystitis, liver abscess, liver cirrhosis, or advanced pancreas head cancer. The diagnosis of one case was uncertain. These phenomena were thought to be caused by 1) a regional direct increase in hepatic arterial flow due to arterial-portal (A-P) shunt, or hypervascular tumor; or 2) a compensatory increase in hepatic arterial flow as a result of decreased portal venous flow caused by tumor invasion or severe liver cirrhosis.

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