caa a22 4500 39750229X CHVBK 20180308164535.0 cr unu---uuuuu 161202e19950101xx s 000 0 eng 10.1093/oxfordjournals.rpd.a082510 doi 0144-8420 pii (NATIONALLICENCE)oxford-10.1093/oxfordjournals.rpd.a082510 Image Quality and Dose Distribution in Multiscan and Fast Ring CT Systems [Elektronische Daten] [F. Levrero, G. Coscia, A. Pilot, F. Cavagnetto, E. Zucchi] Modern CT systems allow examinations with both multiscan and volumetric techniques. This study on image quality and dose distribution was carried out varying the operating conditions (step and slice thickness) for each technique. To describe the physical image quality two basic parameters were taken into account: spatial resolution and noise. The measurements were performed using an acrylic phantom, which includes a series of inserts for the response to spatial frequencies and a uniform insert for noise evaluation. The phantom images recorded on the film by a multiformat laser printer were acquired with a TV digitiser system and processed with a customised software package. Dosimetric evaluations were performed along the longitude axis using an air density equivalent phantom holding the TL dosemeters at the desired location. Radiation Protection Dosimetry Levrero F. aut Coscia G. aut Pilot A. aut Cavagnetto F. aut Zucchi E. aut Radiation Protection Dosimetry Oxford University Press 57/1-4(1995-01-01), 135-138 0144-8420 57:1-4<135 1995 57 rpd https://doi.org/10.1093/oxfordjournals.rpd.a082510 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/oxfordjournals.rpd.a082510 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Levrero F. aut NATIONALLICENCE 700 1- Coscia G. aut NATIONALLICENCE 700 1- Pilot A. aut NATIONALLICENCE 700 1- Cavagnetto F. aut NATIONALLICENCE 700 1- Zucchi E. aut NATIONALLICENCE 773 0- Radiation Protection Dosimetry Oxford University Press 57/1-4(1995-01-01), 135-138 0144-8420 57:1-4<135 1995 57 rpd Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford