간혈관종의 나선식 간동맥조영 CT 및 문맥조영 CT 소견 = Hepatic Hemangioma : Findings of Spiral CTHA and CTAP

다국어 초록 (Multilingual Abstract)

Purpose : To evaluate the characteristic finding of hepatic hemangioma on spiral CT during hepaticarteriography(CTHA) and arterial portography(CTAP). Materials and Methods : Twenty-eight hepatic hemangionas inten patients were analyzed by spiral CTHA & CTAP, and were confirmed by US, conventional CT, MRI, and follow-upimages. Their sizes varied between 5 and 6cm(average 1.8cm) ; using CTHA and CTAP, enhancement patterns wereanalysed according to size, and on CTHA were found to be homogeneous hyperattenuating(HH), peripheral globularhyperattenuating(PG), and mixed(M) type. Results : All hepatic hemangiomas showed perfusion defects on CTAP. OnCTHA, the PG type accounted for 16 of 28 hemangiomas(57%), the HH type for 7(25%), and the M type for 5(18%) ;CTHA also showed that 23 hemangiomas(82%) had an irregular enhanced margin. Conclusion : On CTHA, the most commoncharacteristic finding of hepatic hemangioma was the peripheral globular enhancement pattern(57%). In thediagnosis of hepatic hemangioma accompanied by hepatocellular carcinoma or other liver metastasis, CTHA is moreuseful than CTAP ; in all cases the latter showed only perfusion defects.