The clinical value of different parameters of DSA on primaryhepatic carcinoma

Objective To discuss the clinical value of different parameters of DSA in diagnosis of primary hepatic carcinoma(PHC) .Methods Three hundred cases of PHC diagnosed by clinic were divided into RA and LTLRA groups according to the different parameters of DSA.All patients were performed RA and LTLRA under the control of DSA.The DSA images were analyzed,and data were dealed with statistical method.Results The study obtained 300 cases and 1225 exposure sequences.On DSA images,the PHC lesion's sign showed dilation of liver artery or its branches,invasion of liver artery,sign of grasping sphere,tumor vessels and tumor colouration,and fistula of hepatic artery-portal vein or hepatic artery-hepatic vein.The detecting rates of the sign of tumor vessels and tumor colouration were the highest(100%) .The sign of blood supply was different in various size of lesions.The method of LTLRA detected more 176 lesions as many as RA,and increased 18.68%in detecting rate compared to RA.The statistical analysis showed that there was a significant difference in the sensitivity of lesion,s detection between RA and LTLRA(P0.05) ,especially as to the lesion with diameter1cm(P0.01) .Conclusion The different parameters angiography(RA and LTLRA) of hepatic artery have a great significance in detecting PHC lesions and displaying the lesion's blood supply.The method of LTLRA could remarkably increase the lesion,s detecting rate and especially presented more sensitive to the lesions with poor blood supply and small size.LTLRA of hepatic artery should become the routine examination of PHC.