Value of ultrasono-portography using SonoVue in selective portal vein embolization / 南方医科大学学报

<p><b>OBJECTIVE</b>To explore the value of ultrasono-portography using SonoVue in selective portal vein embolization (SPVE).</p><p><b>METHODS</b>Twenty-eight patients with malignant liver tumors underwent percutaneous ultrasound-guided SPVE. The procedure was performed under color Doppler ultrasound guidance in 11 cases (conventional group) and under guidance with ultrasono-portography using SonoVue in 17 cases (contrast group). Contrast-enhanced CT was performed 2-4 weeks after SPVE to evaluate the effect of embolization.</p><p><b>RESULTS</b>The procedure of SPVE was aborted in 3 cases in which ultrasono-portography showed contraindications. Postoperative contrast-enhanced CT showed ectopic embolization in 2 cases in the conventional group, and none of the cases in the contrast group showed ectopic embolization.</p><p><b>CONCLUSION</b>Ultrasono-portography using SonoVue can provide important assistance for SPVE.</p>

Comparative study of endoluminal ultrasonography and spiral computed tomography in preoperative staging of rectal carcinoma / 中华胃肠外科杂志

<p><b>OBJECTIVE</b>To compare the efficacy of endoluminal ultrasonography (EUS) and spiral computed tomography (SCT) in preoperative staging of rectal carcinoma.</p><p><b>METHODS</b>Both EUS and SCT were performed prior to surgery in 68 patients with rectal carcinoma. After radical surgery, the preoperative findings were compared with histologic findings of the operative specimens, and the efficacy of EUS and SCT in staging the rectal carcinoma were evaluated.</p><p><b>RESULTS</b>For T stage, EUS accuracy was 86.8%, while SCT was 70.6%. The difference was significant (P<0.05). For N stage, EUS accuracy was 67.6% and SCT was 63.2%. The difference was not significant (P>0.05).</p><p><b>CONCLUSION</b>EUS is superior to SCT for the judgement of tumor infiltration depth, but neither is able to provide satisfactory assessment of lymph node metastases.</p>