Department of Radiology, Dokkyo Medical University Koshigaya Hospital, 2-1-50, Minami-Koshigaya, Koshigaya-shi, Saitama, 343-8555, Japan.
Eur Radiol. 2010 Sep;20(9):2241-7. doi: 10.1007/s00330-010-1770-2. Epub 2010 Mar 23.
To evaluate the additional value of inversion recovery (IR) single-shot turbo spin-echo (SSTSE) imaging with sensitivity encoding (SENSE) using the inversion time (TI) value of hepatic haemangioma as a supplement to conventional T2-weighted turbo spin-echo (TSE) imaging for the discrimination of hepatic haemangiomas and cysts.
A total of 134 lesions (77 hepatic haemangiomas, 57 hepatic cysts) in 59 patients were evaluated. Three readers evaluated these images and used a five-point scale to evaluate the lesion status. A receiver operating characteristic (ROC) analysis and 2 x 2 table analysis were used.
The ROC analysis for all the readers and all the cases revealed a significantly higher area under the curve (AUC) for the combination of moderately and heavily T2-weighted TSE with IR-SSTSE images (0.945) than for moderately and heavily T2-weighted TSE images alone (0.894) (P < 0.001). For the combination of T2-weighted TSE with IR-SSTSE versus T2-weighted TSE alone, the 2 x 2 table analysis revealed a higher true-positive rate; this difference was statistically significant (P < 0.0001).
The introduction of IR-SSTSE with SENSE sequences significantly improves the diagnostic accuracy of the differentiation of hepatic haemangioma and cysts while increasing the time required for routine abdominal imaging by only 20 s.
评估反转恢复（IR）单次激发 turbo 自旋回波（SSTSE）成像与敏感度编码（SENSE）技术在肝血管瘤中的应用价值，将反转时间（TI）值作为常规 T2 加权 turbo 自旋回波（TSE）成像的补充，以鉴别肝血管瘤和囊肿。
对 59 例患者的 134 个病灶（77 个肝血管瘤，57 个肝囊肿）进行评估。3 位读者评估了这些图像，并使用五分制评分来评估病灶状态。采用受试者工作特征（ROC）分析和 2×2 表分析。
所有读者和所有病例的 ROC 分析显示，中度和重度 T2 加权 TSE 与 IR-SSTSE 联合成像的曲线下面积（AUC）显著高于仅中度和重度 T2 加权 TSE 成像（0.945 比 0.894）（P＜0.001）。与 T2 加权 TSE 联合 IR-SSTSE 相比，2×2 表分析显示真阳性率更高，差异具有统计学意义（P＜0.0001）。
在常规腹部成像时间仅增加 20s 的情况下，IR-SSTSE 联合 SENSE 序列的应用显著提高了肝血管瘤和囊肿鉴别诊断的准确性。
