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논문 상세정보

이중시기 나선식 CT를 이용한 간세포암의 크기에 따른 조영양상

Contrast Enhancement Characteristics of hepatocellular Carcinoma According to the Tomor Size on Two-Phase Scan with Spiral CT

Abstract

Purpose : To determine the enhancing patterns of hepatocellular carcinoma(HCC) and the difference of enhancingpatterns according to the tumor size, using spiral CT. Materials & Methods : We reviewed 213 lesions in 76patients who had been clinically or histopathologically diagnosed as HCC sufferer. The tumors were divided intothree groups, according to size(5 cm). The enhancing patterns of tumor and capsule in the earlyand delayed phase were analysed. The enhancing patterns of the tumor were divided into five types(high, peripheralhigh, mixed, iso and low attenuation) in the early phase and four types(central high, mixed, iso, and lowattenuation) in the delayed phase. The enhancing patterns of the capsule were divided into three types such asiso, low and high attenuation. Results : High attenuating lesions in the early phase were as follows : below 3cm72% ; 3-5cm., 60% ; above 5cm., 49%. Mixed attenuating lesions in the early phase were as follows : below 3cm., 1%; 3-5cm., 22% ; above 5cm., 36%. Thus, most HCCs were high attenuation type in the early phase, but as the tumorbecame larger, less high attenuation and more mixed attenuation was demonstrated(p<0.01). There was no differenceof enhancing patterns according to the tumor size in peripheral high, iso and low-attenuating lesions. In thedelayed phase most of the hepatomas appeared as totally hypodense lesions. For capsules, the results were asfollows : below 3cm., 20% ; 3-5cm.,58% ; above 5cm., 73%. As the tumors became larger, more capsules weredemonstrated(p〈0.01). The capsules were visualized as iso or low attenuating rim in the early phase and highattenuating rim in the delayed phase. Conclusions : To determine the enhancing patterns of HCC using spiral CT isconsidered to be helpful in the diagnosis of HCC.

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이 논문을 인용한 문헌 (1)

  1. 1997. "Comparison of Enhancement Pattern of Nodular and Masive hepatocellular Carcinoma with and without Portal Vein Thrombosis in Three-Phjase Spiral CT" 대한방사선의학회지 = Journal of the Korean Radiological Society, 36(6): 1021~1028 

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