Role of clinical data and multidetector computed tomography findings in acute superior mesenteric artery embolism

Table 1 MDCT scan parameters

Group	Scan protocol/parameters
Scan area	From diaphragm top to lower edge of symphysis pubis
Body position	Supine position
Tube voltage (kV)/tube current (mAs)	120/care dose 4D
Linear fusion coefficient	0.5
Pitch	1.0
Rotate speed	0.5 s
Collimation (mm)	2 × 192 × 0.6
Thickness of collection layer (mm)	1 mm
Interlayer spacing	0.6 mm
Convolution kernel	Br40
Enhancement protocol	Arterial phase (automatic tracking technology: when the aortic monitoring threshold reached 100 HU, the arterial phase scan was triggered); intravenous phase (scan started 75 s after the contrast agent was injected)
Contrast agent (concentration)	Iopromide (370 mgI/mL)
Dose and rate of contrast agent administration	1.5 mL/kg, 3.5 mL/s