Pleural Tags on CT Scans to Predict Visceral Pleural Invasion of XXXX That Does Not Abut the Pleura.

@entity1 @entity1149 @entity2286 @entity3 @entity456
UNASSIGNED: Purpose To evaluate the association of @entity456 with visceral @entity3 of @entity1149 ( @entity1149 ) that does not abut the pleural surface. Materials and Methods This retrospective study was approved by the institutional review board. Informed consent was waived. The study of @entity1149 that does not abut the pleura in 141 @entity1 (44 @entity1 [31.2%] with visceral @entity3 proved by pathologic analysis and 97 @entity1 [68.8%] without @entity3 ) was conducted at a single tertiary center. The @entity456 were classified into three types (type 1, one or more linear @entity456 ; type 2, one or more linear @entity456 with soft tissue component at the pleural end; and type 3, one or more soft tissue cord-like @entity456 ) and prioritized into types 3, 2, and 1 when more than one type was present. Diagnostic accuracy, sensitivity, specificity, positive predictive value ( @entity2286 ), negative predictive value (NPV), and positive likelihood ratio (LR) were calculated. Results In the absence of @entity456 , no @entity3 was found. The presence of type 2 @entity456 was moderately associated with visceral @entity3 with the following results: positive LR, 5.06; accuracy, 71%; sensitivity, 36.4%; specificity, 92.8%; @entity2286 , 76.2%; and NPV, 69.6%. Type 1 @entity456 provided weak evidence to rule out visceral @entity3 (positive LR, 0.38). Type 3 @entity456 indicated minimal increase in the likelihood of visceral @entity3 (positive LR, 1.68). Conclusion Type 2 @entity456 on conventional CT images can increase the accuracy of early diagnosis of visceral @entity3 by @entity1149 that does not abut the pleura. (  ) RSNA, 2015.
