Splanchnic vein thrombosis in necrotizing acute pancreatitis: Detection by computed tomographic venography

Table 1 Distribution of splanchnic vein thrombosis

Location of SVT	No. of patients
PV isolated	1
SplV isolated	7
SMV isolated	5
SMV + PV	1
PV + SplV	0
SplV + SMV	2
SMV + PV + SplV	1

SVT: Splanchnic vein thrombosis; PV: Portal vein; SplV: Splenic vein; SMV: Superior mesenteric vein.

Table 2 Diagnostic accuracy of computed tomographic venography in splanchnic vein thrombosis in patients with necrotising acute pancreatitis

Findings	Positive (DSA)	Negative (DSA)	Total
Positive (CTV)	17	2	19
Negative (CTV)	0	24	24
Total	17	26	43
Sensitivity	100% (95%CI: 77.1%-100%)
Specificity	92.3% (95%CI: 73.4%-98.7%)
Positive predictive value	89.5% (95%CI: 65.5%-98.2%)
Negative predictive value	100% (95%CI: 82.8%-100%)

CTV: Computed tomographic venography; SVT: Splanchnic vein thrombosis; AP: Acute pancreatitis; DSA: Digital subtraction angiography.