北京生物醫(yī)學(xué)工程

2D-SSh-MRCP序列與基于壓縮感知技術(shù)的CS-3D-MRCP序列在胰膽管成像中的對(duì)比研究

Comparison of 2D-SSh-MRCP and compressed sensing sensitivity encoding based CS-3D-MRCP in cholangiopancreatography

作者：丁金立王志平卓芝政段云云鄭鳳蓮徐成張彥博范亦龍

單位：首都醫(yī)科大學(xué)附屬北京天壇醫(yī)院放射科（北京 100070）

關(guān)鍵詞：磁共振胰膽管水成像；壓縮感知技術(shù)；胰膽管疾病; 膽石癥

分類號(hào)： R318.6

出版年·卷·期（頁(yè)碼）：2020·39·3（290-295）

摘要：

目的比較屏氣條件下采集的單次激發(fā)快速自旋回波2D-SSh-MRCP序列與基于壓縮感知技術(shù)的呼吸觸發(fā)3D快速自旋回波容積掃描CS-3D-MRCP序列在胰膽管成像中的應(yīng)用價(jià)值，以期指導(dǎo)臨床實(shí)際掃描。方法分析首都醫(yī)科大學(xué)附屬北京天壇醫(yī)院50例同時(shí)行2D-SSh-MRCP序列和CS-3D-MRCP序列掃描的患者的臨床和影像資料，由2名經(jīng)驗(yàn)豐富的診斷醫(yī)師對(duì)肝內(nèi)外膽道成像、胰管成像、膽囊形態(tài)以及結(jié)石的診出率進(jìn)行分析和評(píng)分，利用SPSS軟件檢驗(yàn)診斷醫(yī)師之間的一致性，利用t檢驗(yàn)分析上述指標(biāo)的組間差異。

結(jié)果兩名診斷醫(yī)師的評(píng)分一致性較強(qiáng)（Kappa>0.8）；2D-SSh-MRCP序列與CS-3D-MRCP序列在肝內(nèi)外膽管系統(tǒng)的顯示評(píng)分方面無(wú)統(tǒng)計(jì)學(xué)差異（P>0.05）；CS-3D-MRCP序列在膽囊形態(tài)和胰管顯示評(píng)分方面顯著高于2D-SSh-MRCP 序列（P<0.05）；2D-SSh-MRCP序列對(duì)膽囊內(nèi)結(jié)石和膽管內(nèi)結(jié)石檢出率（90.9%，95.0%）高于CS-3D-MRCP序列（77.3%，85.0%）。結(jié)論 2D-SSh-MRCP序列對(duì)膽囊內(nèi)結(jié)石和膽管內(nèi)結(jié)石檢出率較高；CS_3D_MRCP序列在膽囊結(jié)構(gòu)及胰管顯示方面較好；建議在CS-3D-MRCP序列之后加掃2D-SSh-MRCP序列，二者配合更利于胰膽管結(jié)構(gòu)的檢查。

Objective To compare the clinical values of 2D-SSh-MRCP and compressed sensing sensitivity encoding (CS-SENSE) based CS-3D-MRCP in cholangiopancreatography (MRCP), and to guide the MRCP scanning in practice. Methods The clinical data of 50 patients who underwent 2D-SSh-MRCP (group 2D) and CS-3D-MRCP (group 3D) in my hospital were analyzed. Subjective evaluations of the images including the imaging of bile duct, pancreatic tube and gall bladder, as well as the diagnostic rate of cholelithiasis were carried out by two experienced radiologists. SPSS were used for consistency analysis between the two raters and t test were used for statistical analysis between the two groups.Results No significant difference was found in the scorings of intrahepatic and extrahepatic bile ducts between 2D-SSh-MRCP and CS-3D-MRCP (P>0.05). The gallbladder and pancreatic duct were better showed by using CS-3D-MRCP than 2D-SSh-MRCP (P<0.05). The diagnostic rates of calculus in gallbladder and calculus in bile ducts by using CS-3D-MRCP (90.9% and 95.0%) were higher than those of 2D-SSh-MRCP (77.3% and 85.0%).Conclusions 2D-SSh-MRCP is superior in diagnostic accuracy of cholelithiasis; CS-3D-MRCP has a better display on gallbladder and pancreatic duct; 2D-SSh-MRCP is suggested to be carried out after CS-3D-MRCP , which may be better for diagnosing biliopancreatic diseases.

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