Evaluating the effect of high-intensity focused ultrasound therapy on ...
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Evaluating the effect of high-intensity focused ultrasound therapy on ...
tumors before and after high-intensity focused ultrasound. (HIFU) therapy. VX2 carcinoma cells were implanted into the livers of eight New Zealand white rabbits ...
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Evaluating the effect of high-intensity focused ultrasound therapy on liver tumors using multislice CT perfusion XINSHAN CAO and XINGYUE JIANG Radioactive Department, Affiliated Hospital of Binzhou Medical College, Binzhou, Shandong 256603, P.R. China Received August 29, 2012; Accepted November 11, 2012 DOI: 10.3892/ol.2012.1068 Abstract. The aim of this study was to investigate the changes of the multislice computed tomography (MSCT) perfusion parameters and histopathology of the liver in rabbits with VX2 tumors before and after high-intensity focused ultrasound (HIFU) therapy. VX2 carcinoma cells were implanted into the livers of eight New Zealand white rabbits 3 weeks prior to the treatment. MSCT perfusion was performed one week before and one and six weeks after the treatment. These CT perfusion (CTP) data, including hepatic blood flow (HBF), hepatic blood volume (HBV), mean transit time (MTT) and permeabilitysurface area product (PS), were analyzed semi-quantitatively and qualitatively. Furthermore, the histopathological features of the liver tissues were also assessed semi-quantitatively before and after the treatment. Six weeks after HIFU therapy, MTT increased noticeably from 5.45±0.27 to 10.38±2.22 sec (P
