Value of three-dimensional reconstructions in pancreatic carcinoma using multidetector CT: Initial results

Table 1 Examination parameters

	Native CT	Arterial phase	Portal venous phase
Anode voltage (kV)	120	120	120
Anode current (mAs)	140	170	185
Detector collimation	1.5 (slice: 6 mm)	0.75 (slice: 3 mm)	0.75 (slice: 3 mm)
Table feed (mm)	24	12	12
Reconstructed slice thickness (mm)	6	2/1	1.3/3; 2.1/0.5
Delay (s)		8	35

Table 2 Questionnaire put to the surgeon assessing the value of the three-dimensional image vs conventional CT images

Depiction of the tumor
How well can the tumor localization be assessed?	1 = excellent; 2 = good; 3 = mediocre; 4 = bad; 5 = very bad
How well can vascular invasion be assessed?
How well can organ invasion be assessed?
How comfortable are you with the image?
How well does the imaging material match the operative situation?	Completely; partially; not at all
How manageable was the 3D view in comparison with CT?	Less complicated; equally complicated; more complicated
Was the operating strategy changed due to the images?	Yes; no

Table 3 Three-dimensional reconstruction vs CT

Patients	Tumor image		Tumor localization		Vascular invasion		Organ invasion		Feel-good score
	CT	3D	CT	3D	CT	3D	CT	3D	CT	3D
Φ	2.2	1.4	1.8	1.6	2.2	2.2	2.0	1.6	2.4	1.2
P-value	0.157		0.564		1.0		0.157		0.063