title: [Dose reduction in computerized tomography with a new scan procedure].
abstract: A new investigation technique in computed tomography--the Smart Scan process--and the associated reduction in tube current are discussed. In addition, the reduced dosage values resulting from the reduced current values are compared with those of a standard measurement and image characteristics such as picture unit noise are evaluated. By means of three special water phantoms with dimensions corresponding to those of actual patient geometries and a pool of 183 patients, the Smart Scan process was tested by the control algorithm implemented on a spiral computer tomograph. The dosage values with and without the Smart Scan being activated were determined. Dosage reductions of up to 18% can be realized with this new examination technique. In particular, patients with transverse oval head profiles will benefit from this modality.
authors.affiliation: Univ.-Klinik für Radiodiagnostik 1, Univ.-Klinik Innsbruck.
authors.forename: S M
authors.initials: SM
authors.lastname: Giacomuzzi
authors.forename: B
authors.initials: B
authors.lastname: Erckert
authors.forename: M C
authors.initials: MC
authors.lastname: Freund
authors.forename: T
authors.initials: T
authors.lastname: Schöpf
authors.forename: A
authors.initials: A
authors.lastname: Dessl
authors.forename: W
authors.initials: W
authors.lastname: Jaschke
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004867:Equipment Design; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008953:Models, Anatomic; D011829:Radiation Dosage; D011874:Radiometry / Q000295:instrumentation*; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*
vernacular_title: Dosisreduktion in der Computertomographie mit einem neuen Scan-Verfahren.