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국소적 간병변의 다면 역동적 자기공명영상 소견

Other Titles
 Focal Hepatic Lesions : Dynamic Multi-slice MR Imaging 
Authors
 김도중  ;  김명진  ;  최필석  ;  인연권  ;  정재준  ;  이종태  ;  유형식 
Citation
 Journal of the Korean Radiologist Society (대한방사선의학회지), Vol.33(6) : 925-932, 1995-01 
Journal Title
Journal of the Korean Radiologist Society(대한방사선의학회지)
ISSN
 0301-2867 
Issue Date
1995-01
Abstract
PURPOSE: To evaluate the dynamic enhancement patterns of focal hepatic lesions using breath-hold dynamic MR imaging for differential diagnosis. MATERIALS AND METHOD: Thirty three patients (24 men and 12 women, mean age of 55 years) with 56 known liver masses on CT scan and US underwent MR imaging with 1.5T. After Tl-weighted fast multiplanar spoiled gradient recalled (FMPSPGR) imaging, breath-hold FMPSPGR images were obtained at 0, 1, 3, 5, and 10 minutes after bolus injection of Gd-DTPA. The cases consisted of 16 hepatocellular carcinomas, 24 hemangiomas, 6 metastases, 3 cholangiocellular carcinomas, and 7 hepatic cysts. The dynamic enhancement patterns were evaluated on the basis of initial enhancement study and, the degree of enhancement was also levaluaied. RESULTS: Of 24 hemangiomas, most cases showed centripetal filling-in pattern of enhancement except 3 cases which showed homogeneous enhancement pattern on the early dynamic phase. All hemangiomas showed very high signal intensity which persisted to the delayed phase. The eccentric enhancement pattern was the most common type in hemangiomas (63%). Hepatocellular carcinomas had heterogeneous enhancement pattern on early and delayed phase (81, 88%) and showed diminished signal intensity on the delayed images. 14 of 16 hepatocellular carcinomas (88%) had peritumoral halo. Variable enhancement pattern was observed in metastases including progressive centripetal filling-in pattern (67%). All metastases showed prominent peritumoral halos and low signal intensity. Cholangiocellular carcinomas showed early centripetal filling-in and heterogeneous enhancement pattern on delayed phase. None of hepatic cysts showed enhancement. CONCLUSIONS: Dynamic breath-hold MR imaging with Gd enhancement allows accurate assessment of hemodynamic status of hepatic lesions and is useful in differential diagnosis of focal hepatic lerions.
Files in This Item:
T199500764.pdf Download
DOI
10.3348/jkrs.1995.33.6.925
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Myeong Jin(김명진) ORCID logo https://orcid.org/0000-0001-7949-5402
Chung, Jae Joon(정재준) ORCID logo https://orcid.org/0000-0002-7447-1193
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/186146
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