Dual-layer spectral detector computed tomography versus magnetic resonance cholangiopancreatography for biliary stones
Dual-layer spectral detector computed tomography versus magnetic resonance cholangiopancreatography for biliary stones
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双层光谱探测器计算机断层扫描与磁共振胰胆管造影治疗胆道结石的比较
DOI：
10.1097/meg.0000000000001832
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发表时间：
2020
影响因子：
2.1
通讯作者：
Katahira Kazuhiro
中科院分区：
文献类型：
--
作者：
Saito Hirokazu;Iwagoi Yuki;Noda Kana;Atsuji Shutaro;Takaoka Hiroko;Kajihara Hiroo;Shono Takashi;Nasu Jiro;Obara Hitoshi;Kakuma Tatsuyuki;Tada Shuji;Morishita Shoji;Matsushita Ikuo;Katahira Kazuhiro
双层光谱探测器计算机断层扫描（DLCT）可以检测非钙化的胆管结石。DLCT检测胆系结石的诊断能力可与磁共振胰胆管造影（MRCP）相媲美。本研究旨在比较这两种影像学models.MethodsThis的诊断能力为胆道结石包括胆结石（n= 66）和胆总管（CBD）结石（n= 25）或自发通过CBD结石（n= 11）的诊断102例。参考标准为手术结果、内镜逆行胰胆管造影或随访6个月以上。在DLCT中，创建120-kVp图像、40-keV虚拟单能图像和材料分解图像。结果DLCT与MRCP诊断胆系结石的敏感性和特异性分别为91.2%与95.6%和90.9%与90.9%。因此，敏感性和特异性无显著差异（P= 0.25和P= 1.0）。对于小结石（<9mm），DLCT与MRCP对钙化结石的敏感性无显著差异（100%vs92.5%），而对非钙化结石的敏感性DLCT低于MRCP（38.5%vs100%.Conclusion DLCT对胆管结石的诊断能力与MRCP在总体病例中的诊断能力相当。然而，DLCT检测小于9 mm的非钙化结石是有限的。
ObjectiveDual-layer spectral detector computed tomography (DLCT) can detect noncalcified biliary stones. The diagnostic ability of DLCT for detecting biliary stones may be comparable to that of magnetic resonance cholangiopancreatography (MRCP). This study seeks to compare the diagnostic ability for biliary stones between these two imaging modalities.MethodsThis retrospective study included 102 cases with a diagnosis of biliary stones including gallstones (n= 66) and common bile duct (CBD) stones (n= 25) or spontaneously passing CBD stones (n= 11). The reference standard used was operative findings, endoscopic retrograde cholangiopancreatography or follow-up over 6 months. In DLCT, 120-kVp images, 40-keV virtual monoenergetic images and material decomposition images were created. We compared the diagnostic ability of DLCT and MRCP for biliary stones using the McNemar’s test.ResultsThe sensitivity and specificity of DLCT versus MRCP for biliary stones were 91.2% versus 95.6% and 90.9% versus 90.9%. Thus, the sensitivity and specificity were not significantly different (P= 0.25 and P= 1.0). Although in small stones (< 9 mm) the sensitivity of calcified stones was not different between DLCT and MRCP (100% versus 92.5%), the sensitivity of noncalcified stones in DLCT was lower than that in MRCP (38.5% versus 100%).ConclusionThe diagnostic ability of biliary stones in DLCT appears comparable to that of MRCP in overall cases. However, detecting noncalcified stones less than 9 mm in size is limited in DLCT.
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影响因子：
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作者：
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影响因子：
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影响因子：
2.4
作者：
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