[Multislice computed tomography of the small intestine. Preliminary results].
METHODS
Spiral computer tomography (SCT) became an important supplement to the Sellink examination. Multi slice computer tomography (MSCT) achieves a z-axis resolution of 1-2 mm without considerable increase in the acquisition time. In this paper, examination technique in first clinical results of CT-Sellink examination with MSCT, including the 3D-reconstruction are presented.


METHODS
The investigations were carried out with the Somatom Plus 4 Volume Zoom (Siemens, Forchheim) scanner. The following parameters were employed: 4 parallel detector ledges, collimation 4 x 1 mm, tube power 140 mA, tube voltage 120 kV, pitch 5 up to 6 mm, slice thickness 1 mm and 2 mm, reconstruction with 50% overlap. Via a duodenal tube, the small intestine was distended by means of 1.5 up to 2.5 l methyl-cellulose suspension. The data were acquired 35 s after injection of 120 ml contrast media (Ultravist). Various methods of postprocessing were applied on a workstation.


RESULTS
As of yet, 16 patients were examined with MSCT-Sellink. In 4 cases pathological findings were detected with MSCT-Sellink, which were not recognized with X-ray Sellink.


CONCLUSIONS
Due to high z-axis resolution and short acquisition time, the morphological details of the small intestine can be visualized utilizing MSCT-Sellink. The data set is well suited for 3D postprocessing. Improvement of diagnostic accuracy can be anticipated.
Rust
G F
GF
Institut für Klinische Radiologie, Klinikum der LMU-Grosshadern. grust@ikra.med.uni-muenchen.de
Holzknecht
N
N
Olbrich
D
D
Schöpf
U
U
Brüning
R
R
Reiser
M
M
D000328:Adult; D000368:Aged; D003287:Contrast Media / Q000008:administration & dosage; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D007415:Intestinal Obstruction / Q000000981:diagnostic imaging; D007421:Intestine, Small / Q000000981:diagnostic imaging*; D007472:Iohexol / Q000008:administration & dosage / Q000031:analogs & derivatives; D008747:Methylcellulose; D008875:Middle Aged; D014057:Tomography, X-Ray Computed / Q000379:methods*
D003287:Contrast Media; D007472:Iohexol; C038192:iopromide; D008747:Methylcellulose
Mehrschicht-Computertomographie des Dünndarms. Vorläufige Ergebnisse.